Carbon nanotubes properties and applicationsAMIYA JANA
Carbon nanotubes (CNTs) are cylindrical nanostructures made by rolling graphene sheets into hollow tubes with diameters as small as 0.7 nanometers. CNTs have extraordinary mechanical and thermal properties. They can be either metallic or semiconducting depending on their structure and chirality. CNTs show promise for applications in electronics, sensors, composites, medicine, and energy storage if production costs can be reduced and issues of purity and manipulation are addressed.
Nanomaterials are materials that have at least one dimension sized between 1 and 100 nanometers. They exhibit unique properties due to their small size. There are two main approaches to synthesizing nanomaterials - top-down, which involves machining bulk materials, and bottom-up, which involves building up from atoms or molecules. Nanomaterials exist naturally in things like butterfly wings and cicada shells. They have many applications including in paints, sunscreens, medicine, sensors, food packaging, construction materials, energy storage, insulation, cutting tools, and more.
In this presentation, you can find the general description of the Polymer Nano-Composites. About the Properties, they incorporate the Composite material.
The processing techniques of Polymer Nano-Composites as well.
This document provides an overview of nanocomposite materials. It defines nanocomposites as materials with at least one component that has dimensions between 1-100 nm. Nanocomposites consist of inorganic or organic nanoparticles embedded in a matrix. They exhibit enhanced and unique properties compared to bulk materials due to quantum effects and high surface area. The document discusses various synthesis methods for nanomaterials and nanocomposites, as well as their advantages and limitations.
The document summarizes the inert gas condensation method for preparing nanoparticles. It involves evaporating a material and then rapidly condensing it using an inert gas to produce nanoparticles with controlled sizes in the range of 10-9 m. Process parameters like inert gas pressure, temperature, flow rate and evaporation rate can be adjusted to control the average particle size. This technique is used to produce a wide range of metallic, ceramic, and composite nanoparticles and offers advantages of size control and material flexibility, though high vacuum and agglomeration issues exist.
Nanotechnology involves designing, synthesizing, and manipulating structures between 1-100 nanometers in size. One synthesis method is flame spray pyrolysis, where a metal salt solution is sprayed into a flame and pyrolyzed to form metal oxide nanoparticles. This technique allows for homogeneous mixing on an atomic level and formation of crystallized nanoparticles with sizes typically between 5-500 nm through controlled precursor concentration, residence time, and temperature near the flame. The synthesized nanoparticles have applications in areas like sensors, catalysts, and solar cells due to their tunable properties and low production costs.
This is a presentation I made for a school project.
It is not a professional presentation but it does have a lot of information and is perfect to use for a school projects after you make a few changes.
This document summarizes a conference on nanoparticles organized by Ashoka Institute of Technology and Management. It discusses nanoparticles and their properties, various synthesis methods for gold and silver nanoparticles including chemical, physical and biological methods, characterization techniques, and applications in drug delivery, biomedical uses, and challenges including instability, impurities, and toxicity.
Carbon nanotubes properties and applicationsAMIYA JANA
Carbon nanotubes (CNTs) are cylindrical nanostructures made by rolling graphene sheets into hollow tubes with diameters as small as 0.7 nanometers. CNTs have extraordinary mechanical and thermal properties. They can be either metallic or semiconducting depending on their structure and chirality. CNTs show promise for applications in electronics, sensors, composites, medicine, and energy storage if production costs can be reduced and issues of purity and manipulation are addressed.
Nanomaterials are materials that have at least one dimension sized between 1 and 100 nanometers. They exhibit unique properties due to their small size. There are two main approaches to synthesizing nanomaterials - top-down, which involves machining bulk materials, and bottom-up, which involves building up from atoms or molecules. Nanomaterials exist naturally in things like butterfly wings and cicada shells. They have many applications including in paints, sunscreens, medicine, sensors, food packaging, construction materials, energy storage, insulation, cutting tools, and more.
In this presentation, you can find the general description of the Polymer Nano-Composites. About the Properties, they incorporate the Composite material.
The processing techniques of Polymer Nano-Composites as well.
This document provides an overview of nanocomposite materials. It defines nanocomposites as materials with at least one component that has dimensions between 1-100 nm. Nanocomposites consist of inorganic or organic nanoparticles embedded in a matrix. They exhibit enhanced and unique properties compared to bulk materials due to quantum effects and high surface area. The document discusses various synthesis methods for nanomaterials and nanocomposites, as well as their advantages and limitations.
The document summarizes the inert gas condensation method for preparing nanoparticles. It involves evaporating a material and then rapidly condensing it using an inert gas to produce nanoparticles with controlled sizes in the range of 10-9 m. Process parameters like inert gas pressure, temperature, flow rate and evaporation rate can be adjusted to control the average particle size. This technique is used to produce a wide range of metallic, ceramic, and composite nanoparticles and offers advantages of size control and material flexibility, though high vacuum and agglomeration issues exist.
Nanotechnology involves designing, synthesizing, and manipulating structures between 1-100 nanometers in size. One synthesis method is flame spray pyrolysis, where a metal salt solution is sprayed into a flame and pyrolyzed to form metal oxide nanoparticles. This technique allows for homogeneous mixing on an atomic level and formation of crystallized nanoparticles with sizes typically between 5-500 nm through controlled precursor concentration, residence time, and temperature near the flame. The synthesized nanoparticles have applications in areas like sensors, catalysts, and solar cells due to their tunable properties and low production costs.
This is a presentation I made for a school project.
It is not a professional presentation but it does have a lot of information and is perfect to use for a school projects after you make a few changes.
This document summarizes a conference on nanoparticles organized by Ashoka Institute of Technology and Management. It discusses nanoparticles and their properties, various synthesis methods for gold and silver nanoparticles including chemical, physical and biological methods, characterization techniques, and applications in drug delivery, biomedical uses, and challenges including instability, impurities, and toxicity.
The document discusses various applications of nanomaterials across several industries. It describes how nanofabrication allows the development of new ways to capture, store, and transfer energy. It also explains how nanoceramic particles have improved household equipment and how nano-structured materials can enhance biocompatibility. The document also summarizes current pharmaceutical nanotechnology applications including drug delivery and biosensing.
Nanomaterials are commonly defined as materials with at least one dimension measuring less than 100 nanometers. They can exist in single, spherical, tubular, or irregular shapes in one, two, or three dimensions. Nanomaterials are important because their ultra-small size enables benefits like transparency in coatings and high strength with minimal material. Their large surface area enhances reactivity, strength, and electrical properties compared to larger particles of the same composition. Nanomaterials are created through top-down methods like grinding or bottom-up sol-gel processes and have applications in ceramics, semiconductors, powders, and thin films due to their unique mechanical, electrical, and optical properties at the nanoscale.
The document summarizes three common methods for synthesizing nanomaterials: solvothermal, photochemical, and electrochemical.
The solvothermal method involves chemical reactions between precursors in a solvent at high temperature and pressure. Key factors like the solvent, temperature, and duration can control the size, morphology, and uniformity of synthesized nanostructures. The photochemical method uses light sources like UV lamps to initiate chemical reactions. The solvent and wavelength of light are important parameters. The electrochemical method applies a voltage between electrodes in an electrolytic solution to reduce metal ions and form nanoparticles. Parameters like voltage, temperature, electrolyte composition and reaction time can influence nanoparticle size and concentration.
Green Synthesis Of Silver NanoparticlesAnal Mondal
This document discusses the green synthesis of silver nanoparticles. It begins by defining nanoparticles and describing their properties. It then discusses silver nanoparticles specifically, including their size range and color properties. The rest of the document discusses the green synthesis technique for producing silver nanoparticles using plant extracts, the advantages of this method over chemical synthesis, and various characterization techniques and applications of the synthesized silver nanoparticles.
This document discusses approaches for synthesizing nanoparticles, including top-down, bottom-up, sol-gel, and co-precipitation methods. The sol-gel method involves converting a precursor solution into a nanostructured solid through hydrolysis and condensation reactions, producing an interconnected gel network. Co-precipitation involves the simultaneous precipitation of two materials from solution. Both methods allow for control over particle size and properties. The document provides examples of synthesizing copper nanoparticles using co-precipitation and discusses advantages such as low temperature and easy size control and disadvantages like impurities.
This document discusses top-down and bottom-up approaches for designing and preparing nanoparticles. The top-down approach involves breaking down bulk materials into nano-sized particles using methods like ball milling. The bottom-up approach involves building nanoparticles from individual atoms or molecules using nucleation and growth methods. Both approaches have advantages like control over particle size but also disadvantages such as potential contamination from milling or difficulty producing at large scale.
Synthesis and Characterization of nanoparticleMohammad Azam
This document summarizes the history and applications of nanoparticles. It discusses early examples of nanomaterials like the Lycurgus Cup from the 4th century. It classifies nanostructured materials and describes how properties change at the nanoscale. Applications discussed include electronics, medicine, energy, and environmental remediation. Common synthesis methods are outlined as well as characterization techniques like UV-Vis spectroscopy, FTIR, XRD, SEM, TEM, and AFM. Scanning probe microscopes like SEM, STM, and AFM are also briefly described.
The following presentation is only for quick reference. I would advise you to read the theoretical aspects of the respective topic and then use this presentation for your last minute revision. I hope it helps you..!!
Mayur D. Chauhan
Nanotechnology refers to working with structures sized around 100 nanometers or smaller. Some key areas discussed in the document include the history of nanotechnology dating back to 1959, applications in areas like medicine, electronics, energy, and the environment, and both top-down and bottom-up approaches to working at the nanoscale. The future of nanotechnology is presented as holding promise for continued new applications and advancements across many fields.
1) A nanocomposite is a multiphase solid material where one of the phases has dimensions less than 100 nm.
2) Nanocomposites consist of a continuous matrix phase and one or more discontinuous reinforcement phases distributed within the matrix.
3) Polymer nanocomposites can have ceramic, metal, or polymer reinforcements and find applications in packaging, marine uses, and more due to properties like increased strength and melting temperature.
This document provides an introduction to nanotechnology and methods for synthesizing nanomaterials. It discusses that nanotechnology involves working at the nanoscale of 1 to 100 nanometers. Richard Feynman is considered the father of nanotechnology for his 1959 talk describing manipulating atoms and molecules. Common synthesis methods described include mechanical methods like ball milling and melt mixing, as well as physical vapor deposition techniques using evaporation, laser ablation, and ionized cluster beam deposition. The document outlines the advantages of nanotechnology in tuning material properties at small scales.
A composite is a material made from two or more constituent materials with distinct properties. Nanocomposites contain one phase with nanoscale features like nanoparticles, nanotubes, or lamellar structures. Good interaction between the nanoparticles and matrix and good dispersion of particles in the matrix improve composite properties. Nanocomposites can be classified based on dimensionality of the nanomaterial or synthesis method and have applications like flame retardancy, high mechanical properties, and gas barrier performance. They are characterized using techniques like TEM, SEM, AFM, and XRD. Polymer/clay nanocomposites are an important type where clay layers exfoliate or intercalate in the polymer matrix.
The presentation is made as part of introducing some novel technologies in Chemical Engineering. It aims at conveying an overall idea about the Sol-Gel Technology, its underlying processes, applications as well as its future possibilities.
This document discusses green synthesis of nanoparticles using biological methods. It describes how nanoparticles can be synthesized using plant extracts, agricultural waste, microorganisms and enzymes in an environmentally friendly way. This is advantageous over chemical and physical methods as it is cost-effective, produces non-toxic nanoparticles and does not require high temperature or pressure. Specific examples discussed include using bacteria to synthesize silver nanoparticles and controlling factors like pH and temperature to regulate nanoparticle size and shape during microbial synthesis. Overall, the document presents biological methods as a green alternative for nanoparticle production.
This document provides an overview of nanomaterials and carbon nanotubes. It discusses how nanomaterials are materials with sizes between 1 to 100 nm that exhibit unique properties. Carbon nanotubes are nanomaterials made of rolled graphene sheets that have excellent mechanical and electrical properties. The document outlines several methods for synthesizing carbon nanotubes including high pressure carbon monoxide deposition and chemical vapor deposition. It then discusses important properties and applications of carbon nanotubes such as their strength, conductivity, and use as reinforcements in composites.
The document discusses top-down and bottom-up processes for manufacturing structures at the nanoscale. Top-down processes start with bulk material and use techniques like lithography and etching to pattern structures, while bottom-up processes build structures from the atomic or molecular scale using self-assembly. Both approaches are needed as bottom-up is required to make smaller structures than lithography allows, and applications include growing carbon nanotubes, nanodots, and using self-assembled monolayers. Challenges of bottom-up include controlling assembly, but the future will see more integration of both top-down and bottom-up nanomanufacturing.
This document discusses various approaches for synthesizing nanomaterials, dividing them into top-down and bottom-up categories. Top-down approaches begin with bulk materials and make them smaller, such as through mechanical milling, lithography, sputtering, laser ablation, and electrospinning. Bottom-up approaches build up nanomaterials from molecular components. Common top-down techniques include mechanical milling of materials down to the nanoscale, electrospinning to produce nanofibers, and lithography which uses focused beams of light or electrons to construct nanostructures.
Bottom up approaches for nanoparticle synthesiskusumDabodiya
The document discusses bottom-up approaches for synthesizing nanomaterials. Bottom-up approaches involve building nanostructures from individual atoms and molecules, as opposed to top-down approaches which break down bulk materials. Some key bottom-up techniques described are physical vapor deposition methods like inert gas condensation, thermal evaporation, sputtering, and laser ablation which use gas precursors. Liquid phase bottom-up methods including wet chemical synthesis and microemulsion techniques are also covered. The document provides details on the mechanisms and advantages of various bottom-up synthesis methods.
This document provides an overview of nanotechnology, including key facts about its scale in nanometers, major public investments in research, approaches such as top-down and bottom-up, potential applications in areas like food and cosmetics, and implementation tools like atomic force microscopes. It also touches on ongoing work in nanotoxicology, health and environmental concerns, and the story so far in regulation.
CAN GmbH is a nanotechnology company located in Hamburg, Germany that specializes in producing and functionalizing nanoparticulate materials. It was founded in 2005 as a public-private partnership between research institutions and industry. CAN GmbH conducts contract research, develops its own nanoparticle products, and collaborates with academic and industry partners on projects in areas such as cosmetics, medicine, and technical applications.
The document discusses various applications of nanomaterials across several industries. It describes how nanofabrication allows the development of new ways to capture, store, and transfer energy. It also explains how nanoceramic particles have improved household equipment and how nano-structured materials can enhance biocompatibility. The document also summarizes current pharmaceutical nanotechnology applications including drug delivery and biosensing.
Nanomaterials are commonly defined as materials with at least one dimension measuring less than 100 nanometers. They can exist in single, spherical, tubular, or irregular shapes in one, two, or three dimensions. Nanomaterials are important because their ultra-small size enables benefits like transparency in coatings and high strength with minimal material. Their large surface area enhances reactivity, strength, and electrical properties compared to larger particles of the same composition. Nanomaterials are created through top-down methods like grinding or bottom-up sol-gel processes and have applications in ceramics, semiconductors, powders, and thin films due to their unique mechanical, electrical, and optical properties at the nanoscale.
The document summarizes three common methods for synthesizing nanomaterials: solvothermal, photochemical, and electrochemical.
The solvothermal method involves chemical reactions between precursors in a solvent at high temperature and pressure. Key factors like the solvent, temperature, and duration can control the size, morphology, and uniformity of synthesized nanostructures. The photochemical method uses light sources like UV lamps to initiate chemical reactions. The solvent and wavelength of light are important parameters. The electrochemical method applies a voltage between electrodes in an electrolytic solution to reduce metal ions and form nanoparticles. Parameters like voltage, temperature, electrolyte composition and reaction time can influence nanoparticle size and concentration.
Green Synthesis Of Silver NanoparticlesAnal Mondal
This document discusses the green synthesis of silver nanoparticles. It begins by defining nanoparticles and describing their properties. It then discusses silver nanoparticles specifically, including their size range and color properties. The rest of the document discusses the green synthesis technique for producing silver nanoparticles using plant extracts, the advantages of this method over chemical synthesis, and various characterization techniques and applications of the synthesized silver nanoparticles.
This document discusses approaches for synthesizing nanoparticles, including top-down, bottom-up, sol-gel, and co-precipitation methods. The sol-gel method involves converting a precursor solution into a nanostructured solid through hydrolysis and condensation reactions, producing an interconnected gel network. Co-precipitation involves the simultaneous precipitation of two materials from solution. Both methods allow for control over particle size and properties. The document provides examples of synthesizing copper nanoparticles using co-precipitation and discusses advantages such as low temperature and easy size control and disadvantages like impurities.
This document discusses top-down and bottom-up approaches for designing and preparing nanoparticles. The top-down approach involves breaking down bulk materials into nano-sized particles using methods like ball milling. The bottom-up approach involves building nanoparticles from individual atoms or molecules using nucleation and growth methods. Both approaches have advantages like control over particle size but also disadvantages such as potential contamination from milling or difficulty producing at large scale.
Synthesis and Characterization of nanoparticleMohammad Azam
This document summarizes the history and applications of nanoparticles. It discusses early examples of nanomaterials like the Lycurgus Cup from the 4th century. It classifies nanostructured materials and describes how properties change at the nanoscale. Applications discussed include electronics, medicine, energy, and environmental remediation. Common synthesis methods are outlined as well as characterization techniques like UV-Vis spectroscopy, FTIR, XRD, SEM, TEM, and AFM. Scanning probe microscopes like SEM, STM, and AFM are also briefly described.
The following presentation is only for quick reference. I would advise you to read the theoretical aspects of the respective topic and then use this presentation for your last minute revision. I hope it helps you..!!
Mayur D. Chauhan
Nanotechnology refers to working with structures sized around 100 nanometers or smaller. Some key areas discussed in the document include the history of nanotechnology dating back to 1959, applications in areas like medicine, electronics, energy, and the environment, and both top-down and bottom-up approaches to working at the nanoscale. The future of nanotechnology is presented as holding promise for continued new applications and advancements across many fields.
1) A nanocomposite is a multiphase solid material where one of the phases has dimensions less than 100 nm.
2) Nanocomposites consist of a continuous matrix phase and one or more discontinuous reinforcement phases distributed within the matrix.
3) Polymer nanocomposites can have ceramic, metal, or polymer reinforcements and find applications in packaging, marine uses, and more due to properties like increased strength and melting temperature.
This document provides an introduction to nanotechnology and methods for synthesizing nanomaterials. It discusses that nanotechnology involves working at the nanoscale of 1 to 100 nanometers. Richard Feynman is considered the father of nanotechnology for his 1959 talk describing manipulating atoms and molecules. Common synthesis methods described include mechanical methods like ball milling and melt mixing, as well as physical vapor deposition techniques using evaporation, laser ablation, and ionized cluster beam deposition. The document outlines the advantages of nanotechnology in tuning material properties at small scales.
A composite is a material made from two or more constituent materials with distinct properties. Nanocomposites contain one phase with nanoscale features like nanoparticles, nanotubes, or lamellar structures. Good interaction between the nanoparticles and matrix and good dispersion of particles in the matrix improve composite properties. Nanocomposites can be classified based on dimensionality of the nanomaterial or synthesis method and have applications like flame retardancy, high mechanical properties, and gas barrier performance. They are characterized using techniques like TEM, SEM, AFM, and XRD. Polymer/clay nanocomposites are an important type where clay layers exfoliate or intercalate in the polymer matrix.
The presentation is made as part of introducing some novel technologies in Chemical Engineering. It aims at conveying an overall idea about the Sol-Gel Technology, its underlying processes, applications as well as its future possibilities.
This document discusses green synthesis of nanoparticles using biological methods. It describes how nanoparticles can be synthesized using plant extracts, agricultural waste, microorganisms and enzymes in an environmentally friendly way. This is advantageous over chemical and physical methods as it is cost-effective, produces non-toxic nanoparticles and does not require high temperature or pressure. Specific examples discussed include using bacteria to synthesize silver nanoparticles and controlling factors like pH and temperature to regulate nanoparticle size and shape during microbial synthesis. Overall, the document presents biological methods as a green alternative for nanoparticle production.
This document provides an overview of nanomaterials and carbon nanotubes. It discusses how nanomaterials are materials with sizes between 1 to 100 nm that exhibit unique properties. Carbon nanotubes are nanomaterials made of rolled graphene sheets that have excellent mechanical and electrical properties. The document outlines several methods for synthesizing carbon nanotubes including high pressure carbon monoxide deposition and chemical vapor deposition. It then discusses important properties and applications of carbon nanotubes such as their strength, conductivity, and use as reinforcements in composites.
The document discusses top-down and bottom-up processes for manufacturing structures at the nanoscale. Top-down processes start with bulk material and use techniques like lithography and etching to pattern structures, while bottom-up processes build structures from the atomic or molecular scale using self-assembly. Both approaches are needed as bottom-up is required to make smaller structures than lithography allows, and applications include growing carbon nanotubes, nanodots, and using self-assembled monolayers. Challenges of bottom-up include controlling assembly, but the future will see more integration of both top-down and bottom-up nanomanufacturing.
This document discusses various approaches for synthesizing nanomaterials, dividing them into top-down and bottom-up categories. Top-down approaches begin with bulk materials and make them smaller, such as through mechanical milling, lithography, sputtering, laser ablation, and electrospinning. Bottom-up approaches build up nanomaterials from molecular components. Common top-down techniques include mechanical milling of materials down to the nanoscale, electrospinning to produce nanofibers, and lithography which uses focused beams of light or electrons to construct nanostructures.
Bottom up approaches for nanoparticle synthesiskusumDabodiya
The document discusses bottom-up approaches for synthesizing nanomaterials. Bottom-up approaches involve building nanostructures from individual atoms and molecules, as opposed to top-down approaches which break down bulk materials. Some key bottom-up techniques described are physical vapor deposition methods like inert gas condensation, thermal evaporation, sputtering, and laser ablation which use gas precursors. Liquid phase bottom-up methods including wet chemical synthesis and microemulsion techniques are also covered. The document provides details on the mechanisms and advantages of various bottom-up synthesis methods.
This document provides an overview of nanotechnology, including key facts about its scale in nanometers, major public investments in research, approaches such as top-down and bottom-up, potential applications in areas like food and cosmetics, and implementation tools like atomic force microscopes. It also touches on ongoing work in nanotoxicology, health and environmental concerns, and the story so far in regulation.
CAN GmbH is a nanotechnology company located in Hamburg, Germany that specializes in producing and functionalizing nanoparticulate materials. It was founded in 2005 as a public-private partnership between research institutions and industry. CAN GmbH conducts contract research, develops its own nanoparticle products, and collaborates with academic and industry partners on projects in areas such as cosmetics, medicine, and technical applications.
Nanotechnology involves understanding and controlling matter at the nanoscale of 1 to 100 nanometers. At this scale, unique phenomena occur that enable novel applications in areas like electronics, materials, medicine, and the environment. Some key aspects of nanotechnology include fabricating and imaging nanostructures using techniques like lithography, self-assembly, and microscopy. Nanotechnology has significant potential to improve products and address challenges through more efficient, effective, and sustainable solutions.
Sirris Innovate 2011 - Smart products by printing, prof. Marc Van Parys, Sens...Sirris
Prof Van Parys reports about recent smart product democases using thermochrome and luminescent sensor inks. This resulted in fascinating new products like a baby suit that changes color (when wet), or a bikini that measures light intensity and indicates the amount of sun screen to apply to the skin.
- Micro Electro Mechanical Systems (MEMS) is a technology that miniaturizes components between 1 to 100 micrometers in size to combine both electrical and mechanical functions on a single chip using microfabrication technology.
- MEMS devices are fabricated using deposition, patterning, and etching processes. Deposition is used to deposit materials onto the substrate through physical or chemical methods. Patterning transfers patterns onto the materials using lithography techniques. Etching then removes material using wet or dry etching.
- MEMS have applications in areas like automotive, biomedical, military, sensors and more. They are used in airbags, inertial sensors, biomedical implants, inkjet printers, gyroscopes and
This document discusses the various applications of nanotechnology across different industries and fields. Some key applications mentioned include using nanowires in displays and LEDs, nano coatings for protection in construction, increasing data storage capacity in information technology, controlled drug delivery in medicine, identification of bacteria in food, and making textiles stain resistant and wrinkle free. The document provides examples of how nanotechnology is being used in electronics, construction, information technology, medicine, diet, textiles, cosmetics, household products, optics, chemical industry, engineering, automotive industry, and energy.
Magnetic beads in MedLab Magazine issue 02.009Fabrice Sultan
The document discusses magnetic nanoparticles and microspheres, including Estapor® microspheres and MagPrep® particles, and their various applications. Estapor® microspheres offer advantages for immobilizing antibodies or antigens due to their ability to efficiently bind target molecules. Magnetic particles provide an alternative to conventional chromatography that allows automation and replacement of centrifugation or organic solvents with simple magnetic separation. Estapor® microspheres and MagPrep® particles combine these benefits with features like high magnetite content and a non-porous surface, enabling fast migration in magnetic fields while binding targets with high signal and low noise.
These are the slides I made for the Micro Systems and Nano technology course that I gave for Mikro centrum for some years, a little old but not outdated i think. Already the current converge of hardware technology, software technology and biology becomes visible.
Nanotechnology involves manipulating materials at the nanoscale, which is one billionth of a meter. It allows engineering at the molecular level to create new materials with precise atomic control. Some key points are:
- Nanotechnology is being applied commercially in electronics, materials, biomedical and other fields by positioning or manipulating single atoms.
- It works at the scale of molecules and atoms, which is extremely small, around 1/1000 the diameter of a human hair.
- As technology continues to evolve at the nanoscale, it may allow the development of new sensors, computers, medicines and other advanced materials that could significantly impact various industries.
This is a presentation I gave about MEMS processing at Tyndall in 2008. It goes over the various fabrication possibilities at Tyndall.
I personally like slide 3 and 4 trying to hook the history of watch making in with MEMS fabrication. This drive to go smaller and smaller with watch making can also be seen in electronics. Coincidentally, the first MEMS device was a time-keeping pendulum.
This document summarizes the services offered by nanoimmunotech, a European nanobiotechnology company. It offers exclusive characterization services for nanomaterials to optimize their performance for biotechnological applications. It has qualified staff, state-of-the-art labs, and standardized testing protocols. Nanoimmunotech also provides consultancy and validation for nanosystem design and production as well as biosensor design using its proprietary technologies.
The document describes a direct 3D microfabrication process developed by researchers at Ecole Polytechnique de Montreal and INRS. It allows for cost-effective, fast, scalable manufacturing of 3D microstructures using a variety of materials without the limitations of current techniques. The team is seeking partnerships for further development and commercialization, with target markets in tissue engineering, MEMS, and organic electronics estimated to be worth over $25 billion.
Nanotechnology involves working with materials at the nanoscale, between 1 to 100 nanometers. At this scale, materials exhibit unique properties and phenomena. Nanomaterials are being used in a variety of applications due to their small size and novel properties. However, their small size also poses challenges for assessing potential risks to human health and the environment.
Presentation held at the Innovation Forum 2009 with topic microfluidic applications. The presentation gives a view of the broad range of technologies and project methodologies required when developing fully integrated microfluidic devices or lab-on-chips.
This document provides an overview of nanotechnology. It defines nanotechnology as the study and manipulation of matter at the nanoscale, which is one billionth of a meter. The concepts were first introduced in 1959, and tools like the scanning tunneling microscope in 1981 helped advance the field. Nanotechnology is being applied in various industries like electronics, energy, materials and medicine. It allows the creation of materials that are stronger, lighter and more durable. While nanotechnology provides advantages, it also poses risks that require further research.
Lithography technology and trends for « Semiconductor frontier » held by Aman...Yole Developpement
Lithography technology and trends for « Semiconductor frontier »
Mask aligners are the fastest lithography technology
Stepper technology provides the best resolution
Key requirements for Advanced Packaging
LED manufacturers use small diameter wafers (2”, 3”, 4” or 6”) and transition more rapidly than traditional semiconductor’s industry to larger diameters
WAFER SIZE
Wafer bow can reach up to 50μm for 2” wafers and 100μm for 4”, inducing pattern distortion.
WAFER BOW
2”
4”
6”
LED manufacturers can use different substrates, mostly sapphire or SiCwafers, which are transparent with light-diffusing features such as rough or patterned surfaces. Also, they can use metal wafers for vertical structures, so there’s large material variability.
The document discusses the history and development of micro-optics manufacturing from the 19th century to present day. Key developments include the use of microlenses in color photography in the 1920s, the application of semiconductor manufacturing techniques to micro-optics starting in the 1960s, and the current trend toward wafer-level micro-optics processing and packaging. SUSS MicroOptics is highlighted as a leading supplier of high-quality micro-optics manufactured using 8-inch wafer technology.
1. Nanotechnology involves manipulating materials at the nanoscale, between 1 to 100 nanometers. At this scale, materials exhibit unique properties due to their small size.
2. Nanotechnology is projected to be pervasive across many sectors of society as nanomaterials are integrated into various end products. It will also be persistent as nanotechnology becomes more established.
3. As an emerging technology, nanotechnology has the potential to be a powerful global economic driver, but its development and application require planning at the community level to ensure benefits are shared.
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The temple and the sanctuary around were dedicated to Asklepios Zmidrenus. This name has been known since 1875 when an inscription dedicated to him was discovered in Rome. The inscription is dated in 227 AD and was left by soldiers originating from the city of Philippopolis (modern Plovdiv).
This document provides an overview of wound healing, its functions, stages, mechanisms, factors affecting it, and complications.
A wound is a break in the integrity of the skin or tissues, which may be associated with disruption of the structure and function.
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Healing can occur in two ways: Regeneration and Repair
There are 4 phases of wound healing: hemostasis, inflammation, proliferation, and remodeling. This document also describes the mechanism of wound healing. Factors that affect healing include infection, uncontrolled diabetes, poor nutrition, age, anemia, the presence of foreign bodies, etc.
Complications of wound healing like infection, hyperpigmentation of scar, contractures, and keloid formation.
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Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
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Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
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1. Nanotechnology Tools for Life Sciences
Harry Heinzelmann
VP Nanotechnology & Life Sciences
Neuchâtel, June 2009
v1.19
2. CSEM profile
Privately held Innovation Center, incorporated, not for profit
Privately held Innovation Center, incorporated, not for profit
since 1984, from watchmaking
since 1984, from watchmaking
about 70 shareholders (mostly private)
about 70 shareholders (mostly private)
2008:
2008:
>65 Mio. CHF annual turnover, 395 employees
>65 Mio. CHF annual turnover, 395 employees
30 start-ups created since 2000
30 start-ups created since 2000
Activities:
Activities:
Applied research (contract with Swiss Government)
Applied research (contract with Swiss Government)
Industrialization of technologies, product development
Industrialization of technologies, product development
Technologies:
Technologies:
Micro- and Nanotechnology, Information Technology,
Micro- and Nanotechnology, Information Technology,
and System Engineering
and System Engineering
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 1
3. CSEM profile
Bridge from Science to Innovation
Applied Product
Basic Research Res & Dev Development Marketing
PhD programs Industrialisation Sales
Teaching Customers
Science & Market
Education Success
• technologies
for innovations
• research partners:
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 2
4. CSEM profile
Bridge from Science to Innovation
• wide range of technologies, large experience and network innovative solutions
• highly qualified and experienced staff fast developments
• IP portfolio to support the customers’ application protected business
• shareholders include
• technologies for Green Solutions
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 3
5. CSEM profile
Technologies I (divisions in Neuchâtel)
Microelectronics
Circuit Design, RF, Information Processing
Nanotechnology & Life Sciences
Optical and Bio MNT, Self-assembly, Sensors
Systems Engineering
Mechatronics, Signal Processing, Communication
Time and Frequency
Atomic Clocks, Optical Advanced Systems
Microsystems
MEMS, Cleanroom Infrastucture, Microscopy & Analysis
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 4
6. CSEM profile
Technologies II (divisions outside Neuchâtel)
Photonics (Zurich)
Image Sensing, Optoelectronics
Robotics (Alpnach)
Lab Automation, Packaging, Assembly
Thin Film Optics (Basel)
Optoelectronics, Replicated Optics
Nano Medicine (Landquart)
Imaging, Medical Sensors
CSEM UAE
CSEM Brazil
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 5
7. Technologies and Applications
Nanostructuring
• extended experience in self-assembly of
polymer and nanoparticle systems
• block copolymer microphase separation
and copolymer lithography / MEMS
• molecular grafting chemistries, from and to
• controlled self-assembly of beads
• partnerships & projects:
• industrial collaborations:
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 6
8. Nanostructuring
Top-Down vs. Bottom-Up
10
classical (micro-) fabrication
1 mm
100 MEMS: Micro Electro Mechanical Systems
lithography:
10
VIS
1 µm
UV, X-ray, e – beam
100 FIB (serial)
10
1 nm
molecular self-assembly
1 Å “molecular nanotechnology” 250 nm
4 µm
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 7
9. Nanostructuring
Polymeric Self-Assembly I : Polymer Demixing
50% PMMA / 50% PS 90% PMMA / 10% PS
• demixing of immiscible polymer blends
• qualitative structures on the micron scale
• control over feature size and properties
• large variety of polymers available
80 µm 5 µm
• simple deposition technique
• selective solvent can remove one polymer type
• scalable to
large surfaces
large 5µm med 2µm small <1µm
inexpensive and flexible method to control surface properties on a micron scale
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 8
10. Nanostructuring – Polymer Demixing
Nanoporous Layers for Ink-jet Printer Paper
Polymer paper Nanoporous paper
Nanoporous layer
Polymer layer (Alumina film)
Cellulose Cellulose
stable images fast up-take, small spot size
slow ink uptake, big spot size image fading (light, gas,…)
polymer film
transferred
on paper
paper, 5 µm x 5 µm polymer on Si
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 9
11. Nanostructuring – Polymer Demixing
Security Features for Anti-Counterfeiting Applications
• market size for counterfeit goods (2004): 500 Bill. US$
for art pieces: >10 Bill. US$ (Europe)
• nanoscale structures are
difficult to counterfeit,
and are mass-producible
• self-assembly structures are random and unique
*patent
pending
• security features can be mass produced at low cost, both for mass id and unique fingerprints
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 10
12. Nanostructuring – Polymer Demixing
Topography Gradients for Surface Interaction Screening
PMMA / P2VP demixing on a pre-prepared surface chemistry gradient
• surface coatings with controlled properties,
varying over short length scales
• combinatorial studies of cell-substrate interactions: effect of surface
roughness on cell adhesion and proliferation, with gradients adapted
to typical distances travelled by cells study of cell locomotion
Blondiaux et al., submitted
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 11
13. Nanostructuring
Polymeric Self-Assembly II : Microphase Separation
• block copolymer A-b-B
-A-A-A- -B-B-B-
• Microphase Separation
• inexpensive & flexible method to generate
10 -100 nm
ordered structures on the molecular scale
• wide choice of functions and chemistries:
mechanical, chemical / catalytic,
optical, electrical, magnetic, …
high high
A-fraction B-fraction
Krishnamoorthy et al., materials today (September 2006)
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 12
14. Nanostructuring – Copolymer Microphase Separation
(Random) Nanostructures with Order and Function
Function: Order:
• PI-b-PFS poly(isoprene-b-ferrocenylsilane) • random and short range
• spincoating of 30nm thin film, plasma etch • can be improved by templating
• high density magnetic pattern: 4 1011 /cm2 • topographical, chemical, temp, fields, …
H
CH3 Fe
Si
CH3
n-Bu m n
PI-b-PFS
different FexOy stochiometries PS-PFS
from Korczagin, Vancso et al., Mesa+ from Stoykovich et al., Science (2005)
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 13
15. Nanostructuring – Copolymer Microphase Separation
Copolymer Lithography for Nano-Pillars and Nano-Pores
etch mask from
inverted micelles etch mask
copolymer patterns
from polymer
constituents with
different etch rates
in some cases it is
necessary to provide
an “amplification” of RIE
the etch contrast
Krishnamoorthy et al., Nanotechnology (2008)
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 14
16. Nanostructuring – Copolymer Microphase Separation
Non-Wetting Surfaces with Nanopillar Structures
• self-cleaning surfaces by functionalization
with perfluorosilane (wet or PVD)
transition from Wenzel to Cassie-Baxter wetting mode
for structure aspect ratio > 2:1
planar SiNx silanised
with perfluorosilane:
contact angle 111°
Nanopillars in SiNx, 90nm high, 100nm periodicity
silanised with perfluorosilane:
water contact angle 150˚, highly mobile drop
WCA adv 160° (compare to 110° on a flat surface)
Krishnamoorthy et al., Nanotechnology (2008) hysteresis 5°, rolling angle 6°, 10ml droplet
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 15
17. Nanostructuring – Nanoporous Membranes
Osmotic Biosensor based on Nanoporous Membranes
• nanoporous membranes from
copolymer lithography
• macro prototyping of osmotic sensor
• size selectivity supported specific
binding chemistry
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 16
18. Nanostructuring – Nanoporous Membranes
Wafer Scale Replication of Copolymer Lithography Patterns
• replication by polymer casting • replication by embossing into PC foil
master by Ni electroplating
wafer scale PDMS casting
• PMMA nanoporous membranes
small medium large
• nanostructured surfaces for cell studies
influence on:
• cell growth
• protein expression
• cytoskeleton organ.
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 17
19. Technologies and Applications
BioMEMS for Nanotoxicity Tests
• experience in cell handling
dedicated infrastructure
• established knowledge in microfabrication
and replication technologies, in house fab
• nanotechnology / nanoparticle handling
• microfluidics design and prototyping
• partnerships & projects: InLiveTox
• industrial collaborations:
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 18
20. BioMEMS
Nanotoxicology – Risks of Nanoparticle Technology
• molecular nanotechnology “hype” • new class of nano-materials with “unknown”
• “grey goo” & “green goo” properties: carbon (CNT, buckyballs, …),
TiO2, SiO2, metallic (Au…), quantum dots
(CdS, CdSe, CdTe, etc.), polymeric…
gold
latex
Catalytic CO Oxidation by a Gold
CNTs Nanoparticle, N. Lopez and J.K.
Norskov, J.Am.Chem.Soc.(2002)
• … in widespread applications: catalysts,
sunscreens, fuel cells, solar panels, …
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 19
21. BioMEMS - Nanotoxicology
Translocation Measurement Device – EU IP Nanosafe2
• problem: unknown effects of nanoparticles on human organisms
• microfabricated chip for the in vitro study of model epithelia transport properties
nanoparticle suspension
coming in
confluent layer of
epithelial cells
porous Si3N4
electrodes for TEER membrane
measurements detection of nanoparticles
that cross the cell layer
detection of inorganic nanoparticles off-line using inductively
coupled plasma mass spectrometry (ICP-MS)
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 20
22. BioMEMS - Nanotoxicology
On-Chip Electrical Characterization of Cell Layers
• microfabricated chip with cell culture wells
• porous membranes at the basis of each well
to allow toxins or drugs to pass through
• TransEpithelial Electrical Resistance (TEER)
to determine the tightness of a cell layer
Calu-3 cells grown in one of five wells
• electrical contacts
• plastic holder
• glass support, to seal the
fluidic network
• PDMS fluidics
• SiN membrane
• PDMS in plastic holder,
electrical contacts at the bottom
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 21
23. BioMEMS - Nanotoxicology
Intestinal, Liver & Endothelial NP Toxicity – InLiveTox
• CSEM, 4 university partners, Helmholtz Zentrum Berlin, Kirkstall Ltd, Alma
• objectives:
• develop in vitro test system to reduce/replace animal tests of nanoparticle toxicity
• replace the “lab rat”
‘Gastro Intestinal tract’ ‘Intestinal epithelium’
by a setup of (co-culture of epithelial cells,
‘Bloodstream’
• microfluidics and monocytes and dendritic cells)
• cell cultures ‘Vascular endothelium’
of model organs (endothelial cells)
‘Liver’ (hepatocytes)
Nanoparticles Sampling ports
• 3Rs: Replace, Reduce and Refine animal tests
• REACH: Registration, Evaluation, Authorisation & Restriction of Chemical Substances
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 22
24. Nanotools
Probe Array Technology – PROBART
• speed up single probe operation
by parallel
imaging and
sensing
• PROBART for Life Science applications, for
nisenet.org - bioarrays
- cells
but: operation in liquids!
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 23
25. Nanotools – Probe Arrays
Force Spectroscopy on Cells
• information about adhesion proteins,
cell mechanics, kinetics, …
• cell-surface, cell-cantilever, cell-cell
• meaningful only with sufficient
statistics, which makes experiments
rather tedious
• at current rate of a few cells per day,
not useful for screening formats
• array format would improve statistics
and make high throughput screening
formats more accessible
source: JPK
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 24
26. Nanotools – Probe Arrays
PROBART for Parallel Imaging
VEE (- 6V)
Rlever
Rref (~ 20 kohm)
R ref Vout
R1 R2
R lever
probe
#6 4x4 array imaging in
buffer solution with
probe continuous zoom-in
#13
probe
#15
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 25
27. Nanotools – Probe Arrays
Cell Adhesion Forces
similar adhesion forces for cells in all
phases of the cell cycle (thus no need
for synchronization in future studies)
Human osteoblasts, growing on
hemispherical pits (a, diameter 27 µm) and
nanopillars (b, 45nm high, replicated in a non-
metallic bone implant material
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 26
28. Technologies and Applications
Nanotools for Ultimate Pipetting
• vast experience in Scanning Probe Methods
• MEMS design and fabrication in house
• fluidics design and fabrication
• surface chemistry and characterization
• experience in handling biomaterials,
nanoparticles in solutions
• partnerships & projects:
• industrial collaborations: first contacts with instrument makers
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 27
29. Nanotools – Nanoscale Dispensing
Nanoscale Dispensing – NADIS
deposition of liquids
in ultrasmall volumes
from microscopic tips
• functional biomolecules for microarrays, such as
Molecules in solution proteins or DNA
• metallic nanoparticles to form connects, catalyst
Nanoparticle suspensions
particles, optical and chemical functions, …
• etch resist materials, sol-gel precursors, …
Materials for processing
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 28
30. Nanotools – Nanoscale Dispensing
NADIS with FIB Modified Probes
• apertures with Ø down to 200 nm
• flexibility in location (off-center, …)
• possible to keep sharp AFM tips
1 µm
sub-attoliter
volumes
Meister et al., App.Phys.Lett. (2004)
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 29
31. Nanotools – Nanoscale Dispensing
NADIS of Fluorophores in Liquid Environments
3 µm
1
Intensity [a.u.]
0.5
0
0 2 4 6 8
applied pressure ~ 2mbar
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 30
32. Nanotools – Nanoscale Dispensing
NADIS for Liquid Exchange with Living Cells
• injection after perforation
of the cell membrane
• extraction of cytoplasm for
remote analysis
• towards patch clamping
viable neuroblastoma cells
Cell TrackerTM green staining
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 31
33. Conclusions
Nanostructuring
• polymer demixing
for random but regular microstructures
• co-polymer microphase separation
for well-arranged functional nanostructures and lithography
THANK YOU !
• collaborators from CSEM: AM Popa, M Klein, W Li, F Montage, R Pugin, …
• cleanroom team from COMLAB and CMI EPF Lausanne
• partners from U Mulhouse, U Twente, EPFL, …
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 32
34. Conclusions
Nanotools
• probe array platform
for parallel force spectroscopy in biological environments
• nanoscale dispensing (NADIS)
for liquid arraying and cell manipulation
THANK YOU !
• collaborators from CSEM: J Przybylska, M Favre, J Polesel, A Meister, M Liley, …
• cleanroom team from COMLAB and CMI EPF Lausanne
• partners from IMT U Neuchâtel, U Lund, U Trento, ETHZ, EPFL, …
Copyright 2009 I Nanotechnology & Life Sciences I Harry Heinzelmann I page 33