Kristy Wendt has extensive experience characterizing materials using various microscopy techniques. She has worked with clients from Washington University to analyze samples ranging from nanoparticles to biological tissues. Wendt enjoys developing new processing protocols to image challenging samples. She also trains others and collaborates across facilities to further characterization capabilities.
The presentation describes the emerging scope of Nanotechnology in the field of forensic science and criminal investigation which further strengthens the investigative measures and enriches the area of research and development in the field of forensic science
ABSTRACT- Nanotechnology as a new area of research, which involves the revealing of cases and evidences before the court of interest whenever it is obligatory. This area of research has its own significant interest as the advances in the field of nanotechnology are being incorporated in the field of forensic science. Only large collections of strains from all over the world and high quality sequence data will provide the basis for meaningful results in microbial forensic investigations. International and interdisciplinary cooperation will improve our capabilities to rapidly identify the agents, elucidate the source, and provide these results as evidence in court. Since the last few decades, fingerprints from pollen have become the dominion of many forensic scientists throughout the world, and have proven to be the main ingredient of one of the most powerful techniques in trace and contact evidence- Forensic Palynology. Nanotechnology is likely to play a major role in the future in the field of forensic science to deliver more selective and more sensitive ways to detect and reveal cases along with infallible evidences.
Key-words- Nanotechnology, Forensic Science, Investigation, Evidences, Detection
Nanotechnology Powder
Nanotechnology is the field of science that deals with the study of materials in the nanometer scale. Additionally, the domain can also be defined as the synthesis of matter on an atomic level, with sizes ranging from 1 to 100 nm.
Nanoparticles are much smaller than most of the particles currently used in fingerprint detection, which are in the order of 1–10 mm in size.
Nanoparticles are distinct, non-aggregated particles with nanometre-size diameters, although nano-structured particles, which may be up to microns in diameter, often exist as aggregates of nano-sized particles
The use of nano-particles has recently shown a great potential in producing the next generation of fingerprint development techniques known as nano-fingerprints.
The presentation describes the emerging scope of Nanotechnology in the field of forensic science and criminal investigation which further strengthens the investigative measures and enriches the area of research and development in the field of forensic science
ABSTRACT- Nanotechnology as a new area of research, which involves the revealing of cases and evidences before the court of interest whenever it is obligatory. This area of research has its own significant interest as the advances in the field of nanotechnology are being incorporated in the field of forensic science. Only large collections of strains from all over the world and high quality sequence data will provide the basis for meaningful results in microbial forensic investigations. International and interdisciplinary cooperation will improve our capabilities to rapidly identify the agents, elucidate the source, and provide these results as evidence in court. Since the last few decades, fingerprints from pollen have become the dominion of many forensic scientists throughout the world, and have proven to be the main ingredient of one of the most powerful techniques in trace and contact evidence- Forensic Palynology. Nanotechnology is likely to play a major role in the future in the field of forensic science to deliver more selective and more sensitive ways to detect and reveal cases along with infallible evidences.
Key-words- Nanotechnology, Forensic Science, Investigation, Evidences, Detection
Nanotechnology Powder
Nanotechnology is the field of science that deals with the study of materials in the nanometer scale. Additionally, the domain can also be defined as the synthesis of matter on an atomic level, with sizes ranging from 1 to 100 nm.
Nanoparticles are much smaller than most of the particles currently used in fingerprint detection, which are in the order of 1–10 mm in size.
Nanoparticles are distinct, non-aggregated particles with nanometre-size diameters, although nano-structured particles, which may be up to microns in diameter, often exist as aggregates of nano-sized particles
The use of nano-particles has recently shown a great potential in producing the next generation of fingerprint development techniques known as nano-fingerprints.
Black sand is sand that is black in color, there are a number of different dark sand grains that can form black sand, it concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous processes into a common mineral-suite that becomes black sands after weathering and erosion, several gemstones such as garnet, topaz, ruby, sapphire, and diamond are found in placers and in the course of placer mining, and sands of these gems are found in black sands and concentrates. black sand is found in Egypt with economical quantities, it is located in the Mediterranean sea coast from Al Arish in north Sinai to Rashid in Al Buhayrah, the main concentration of black sand is in Kafrelshiekh. Black sand is considered as source of many ores used in building and construction such as Iron and steel industry, that is beside wide application in concrete and painting industries. In this work, Chemical, physical and mechanical characteristics of black sands compounds in Egypt are mentioned, the composition and locations of black sand will be discussed, the main common applications of black sands in building and construction industries will be mentioned, the application of black sands in insulation materials industries will be discussed the disadvantages and precautions of using black sands in some applications in buildings will be evaluated. The work end with group of results and recommendations to improve the economic of black sand applications in new fields related to construction and building material industries such as Titanium industries and composite materials.
Nanoscience and Nanotechnology (Semi-Conducting Nanoclusters, Leaching Studies, Silicone Oxide Nanostructures, Carbon Nanofibers, Molecular Carbon-Onions, Gold-Silica Nanocomposites, Cobalt Ferrite Nanoparticles, Carbon Nanotube Field-Effect Transistor, Cylindrical Nanodot Arrays, Porous Anodic Alumina, Nanocrystalline Silicon Films)
Nanotechnology is the engineering of functional systems at the molecular scale. In its original sense, nanotechnology refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products. In this rising world of rapid technological developments, the role of state of art materials & composites is pivotal in frontier applications like aerospace, aviation, automobile, defense, electronics, chemical, biomedical, energy & nuclear sectors etc. with the advent of 21st century & initiation of Nanotechnology the atomic & molecular structures of materials is redefined. This shall result in new smart materials namely nanoparticles, powder, wires, rods, carbon nano tubes & so on.
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Contact us
Niir Project Consultancy Services
106-E, Kamla Nagar, Opp. Spark Mall,
New Delhi-110007, India.
Email: npcs.ei@gmail.com , info@entrepreneurindia.co
Tel: +91-11-23843955, 23845654, 23845886, 8800733955
Mobile: +91-9811043595
Website: www.entrepreneurindia.co , www.niir.org
Tags
Nanoscience, Sulphuric Acid on Grapheme, Metastabilities in Nanocrystalline, Interaction of Sulphuric Acid with Graphene, Sulphuric Acid in Gas and Solid Phases, Sulphuric Acid on Graphene, Nanowire Morphology, Periodicity and Diameter, Chemical Analysis of Copt/Pt Nanowires, Thermopower Measurements on Nickel Nanowires, Structural Characterization of Nws, Multi-Walled Carbon Nanotube Emitters Experiment, Fabrication of Cnt Cathode, Cathode Support Structure Geometry, Vibration of Carbon Nanotube, Axisymmetric Radial Breathing Vibration, Nanoporous Tio2 Electrode, Preparation of Ilse Films, Electrode and Dssc Fabrication Containing Ilse, Numerical Simulations, High Temperature Stm in Situ Observation of Thermal Decomposition Process, Morphology Effects on Decomposition Process, Cylindrical Nanodot Arrays, Vortex-Core Magnetization, Porous Anodic Alumina, Film Morphology, Film Composition, Metal Nanoclusters in Glass, Ion-Beam Mixed Ag in Silica, Light Emission from Nanocomposites, Nanocrystalline Silicon Films, Electron Microscopy, Nanoscale Deep Indentation, Creation of Carbon Onions and Coils, Luminescence of Crystals Nanorods, Nanonecklace Morphology, Chemical Doping with Carbon Nanotubes, Poly(N-Isopropylacrylamide) Nanoparticles, Cobalt Ferrite Nanoparticles, Au Nanoparticles on Light-Emitting Polymers, Au Nanoparticle Chains, Gold-Silica Nanocomposites, Molecular Carbon-Onions, Silicone Nanowires,
This presentation was given at the 2009 SPIE conference in San Diego, CA.
Actuators employing ferroelectric or ferromagnetic compounds are solid-state, efficient, and compact making them well-suited for aerospace, aeronautic, industrial and military applications. However, they also exhibit frequency, stress and thermally-dependent hysteresis and constitutive nonlinearities which must be incorpo-rated in models for accurate device characterization and control design. A critical step in the use of these models is the estimation or re-estimation of parameters in a manner that is both efficient and robust. In this presentation, we discuss techniques to estimate densities in the homogenized energy model based on Galerkin expansions using physically motivated basis functions. The yields highly tractable optimization algorithms in which initial parameter estimates can be obtained from measured properties of the data. The efficiency and accuracy of the models and estimation algorithms are validated with experimental data.
Black sand is sand that is black in color, there are a number of different dark sand grains that can form black sand, it concentrates often contain additional valuables, other than precious metals: rare earth elements, thorium, titanium, tungsten, zirconium and others are often fractionated during igneous processes into a common mineral-suite that becomes black sands after weathering and erosion, several gemstones such as garnet, topaz, ruby, sapphire, and diamond are found in placers and in the course of placer mining, and sands of these gems are found in black sands and concentrates. black sand is found in Egypt with economical quantities, it is located in the Mediterranean sea coast from Al Arish in north Sinai to Rashid in Al Buhayrah, the main concentration of black sand is in Kafrelshiekh. Black sand is considered as source of many ores used in building and construction such as Iron and steel industry, that is beside wide application in concrete and painting industries. In this work, Chemical, physical and mechanical characteristics of black sands compounds in Egypt are mentioned, the composition and locations of black sand will be discussed, the main common applications of black sands in building and construction industries will be mentioned, the application of black sands in insulation materials industries will be discussed the disadvantages and precautions of using black sands in some applications in buildings will be evaluated. The work end with group of results and recommendations to improve the economic of black sand applications in new fields related to construction and building material industries such as Titanium industries and composite materials.
Nanoscience and Nanotechnology (Semi-Conducting Nanoclusters, Leaching Studies, Silicone Oxide Nanostructures, Carbon Nanofibers, Molecular Carbon-Onions, Gold-Silica Nanocomposites, Cobalt Ferrite Nanoparticles, Carbon Nanotube Field-Effect Transistor, Cylindrical Nanodot Arrays, Porous Anodic Alumina, Nanocrystalline Silicon Films)
Nanotechnology is the engineering of functional systems at the molecular scale. In its original sense, nanotechnology refers to the projected ability to construct items from the bottom up, using techniques and tools being developed today to make complete, high performance products. In this rising world of rapid technological developments, the role of state of art materials & composites is pivotal in frontier applications like aerospace, aviation, automobile, defense, electronics, chemical, biomedical, energy & nuclear sectors etc. with the advent of 21st century & initiation of Nanotechnology the atomic & molecular structures of materials is redefined. This shall result in new smart materials namely nanoparticles, powder, wires, rods, carbon nano tubes & so on.
See more
https://goo.gl/B0uBrS
https://goo.gl/J9zSNC
Contact us
Niir Project Consultancy Services
106-E, Kamla Nagar, Opp. Spark Mall,
New Delhi-110007, India.
Email: npcs.ei@gmail.com , info@entrepreneurindia.co
Tel: +91-11-23843955, 23845654, 23845886, 8800733955
Mobile: +91-9811043595
Website: www.entrepreneurindia.co , www.niir.org
Tags
Nanoscience, Sulphuric Acid on Grapheme, Metastabilities in Nanocrystalline, Interaction of Sulphuric Acid with Graphene, Sulphuric Acid in Gas and Solid Phases, Sulphuric Acid on Graphene, Nanowire Morphology, Periodicity and Diameter, Chemical Analysis of Copt/Pt Nanowires, Thermopower Measurements on Nickel Nanowires, Structural Characterization of Nws, Multi-Walled Carbon Nanotube Emitters Experiment, Fabrication of Cnt Cathode, Cathode Support Structure Geometry, Vibration of Carbon Nanotube, Axisymmetric Radial Breathing Vibration, Nanoporous Tio2 Electrode, Preparation of Ilse Films, Electrode and Dssc Fabrication Containing Ilse, Numerical Simulations, High Temperature Stm in Situ Observation of Thermal Decomposition Process, Morphology Effects on Decomposition Process, Cylindrical Nanodot Arrays, Vortex-Core Magnetization, Porous Anodic Alumina, Film Morphology, Film Composition, Metal Nanoclusters in Glass, Ion-Beam Mixed Ag in Silica, Light Emission from Nanocomposites, Nanocrystalline Silicon Films, Electron Microscopy, Nanoscale Deep Indentation, Creation of Carbon Onions and Coils, Luminescence of Crystals Nanorods, Nanonecklace Morphology, Chemical Doping with Carbon Nanotubes, Poly(N-Isopropylacrylamide) Nanoparticles, Cobalt Ferrite Nanoparticles, Au Nanoparticles on Light-Emitting Polymers, Au Nanoparticle Chains, Gold-Silica Nanocomposites, Molecular Carbon-Onions, Silicone Nanowires,
This presentation was given at the 2009 SPIE conference in San Diego, CA.
Actuators employing ferroelectric or ferromagnetic compounds are solid-state, efficient, and compact making them well-suited for aerospace, aeronautic, industrial and military applications. However, they also exhibit frequency, stress and thermally-dependent hysteresis and constitutive nonlinearities which must be incorpo-rated in models for accurate device characterization and control design. A critical step in the use of these models is the estimation or re-estimation of parameters in a manner that is both efficient and robust. In this presentation, we discuss techniques to estimate densities in the homogenized energy model based on Galerkin expansions using physically motivated basis functions. The yields highly tractable optimization algorithms in which initial parameter estimates can be obtained from measured properties of the data. The efficiency and accuracy of the models and estimation algorithms are validated with experimental data.
Different types of Nanolithography technique.
Types: Electron beam lithography, Photolithography, electron-beam writing, ion- lithography, X-ray lithography, and related images, concepts and graphical views.
I hope this presentation helpful for you.
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In recent years , the world of science has started to produce advanced materials and technology in the nano scale, which known as nanotechnology . The use of nanotechnology has become wide spread in all branches of science , so there is an essential need to prepare advanced nanotechnology tools and detection systems contain very recent instruments needed for nanotechnology studies , since the physical , chemical and biological properties of the material at nano scale differ in fundamental and valuable ways from that at normal scale. In this work the different technique in measuring and detection techniques in nanotechnology will be discussed the method of operation and accuracy of each technique will be evaluated, the main applications of each technique in industrial and construction field will be evaluated. The techniques mentioned are Nano indentation technique which evaluate the mechanical properties of the nano-materials such as reduced modulus, stiffness and Hardness. The quantitative and qualitative analysis detection systems such as SEM , AFM, STM and Zeta potential will be evaluated . The analysis and tooling equipments will be also evaluated. At the end of work the main conclusions and recommendation about using nanotechnology detection tools and difference between them are mentioned.
In recent years , the world of science has started to produce advanced materials and technology in the nano scale, which known as nanotechnology . The use of nanotechnology has become wide spread in all branches of science , so there is an essential need to prepare advanced nanotechnology tools and detection systems contain very recent instruments needed for nanotechnology studies , since the physical , chemical and biological properties of the material at nano scale differ in fundamental and valuable ways from that at normal scale. In this work the different technique in measuring and detection techniques in nanotechnology will be discussed the method of operation and accuracy of each technique will be evaluated, the main applications of each technique in industrial and construction field will be evaluated. The techniques mentioned are Nano indentation technique which evaluate the mechanical properties of the nano-materials such as reduced modulus, stiffness and Hardness. The quantitative and qualitative analysis detection systems such as SEM , AFM, STM and Zeta potential will be evaluated . The analysis and tooling equipments will be also evaluated. At the end of work the main conclusions and recommendation about using nanotechnology detection tools and difference between them are mentioned.
In recent years , the world of science has started to produce advanced materials and technology in the nano scale, which known as nanotechnology . The use of nanotechnology has become wide spread in all branches of science , so there is an essential need to prepare advanced nanotechnology tools and detection systems contain very recent instruments needed for nanotechnology studies , since the physical , chemical and biological properties of the material at nano scale differ in fundamental and valuable ways from that at normal scale. In this work the different technique in measuring and detection techniques in nanotechnology will be discussed the method of operation and accuracy of each technique will be evaluated, the main applications of each technique in industrial and construction field will be evaluated. The techniques mentioned are Nano indentation technique which evaluate the mechanical properties of the nano-materials such as reduced modulus, stiffness and Hardness. The quantitative and qualitative analysis detection systems such as SEM , AFM, STM and Zeta potential will be evaluated . The analysis and tooling equipments will be also evaluated. At the end of work the main conclusions and recommendation about using nanotechnology detection tools and difference between them are mentioned
Growth and Optimization of Aluminium-doped Zinc Oxide using Spray Pyrolysis T...Kevin V. Alex
Highly conducting and transparent Al-doped ZnO thin films were grown on glass substrate using 0.3M of zinc acetate dihydrate and aluminum acetylacetonate solution via spray pyrolysis technique. Methanol was used as the main solvent and Nitrogen as the carrier gas. This work consists of two set of studies. The structural properties of the grown films were characterized using XRD. The crystallite size was also calculated from the XRD data. The optical studies of the prepared samples were studied using UV-Vis spectrometer and their respective optical band-gaps were determined. The film thickness was measured using the stylus profiler while the resistivity measurements were done in the source measuring unit. The surface morphology of the film was studied using the SEM images of the samples.
3. Starting On Campus: Training Protocol Development
EM Core Facility Collaboration
4. Image and Technique Portfolio: Image Processing
FEI Tecnai SpiritTM Quantifying Size Dispersion
TEM of ~200 nm Ag Nanocubes Binary Image with Global Threshold
Client: Dr. Younan Xia,
Washington University
Sample: ”Bottom up” shape
controlled synthesis silver and
gold nanoparticles
Expectations: Quantification
of size dispersion
500 nm 500 nm
5. Image and Technique Portfolio:
FEI NovaNanoTM SEM Finding the Right Angle
Client: Dr. Brent Riggs, NRF
Sample: Photolithography, Fabrication
Expectations: Measure the thickness,
density, and composition of films, identify
profile shape, identify contamination and
trace impurities
6. Image and Technique Portfolio:
FEI NovaNanoTM SEM Troubleshooting Difficult Samples
Client: Dr. Pratim Biswas,
Washington University
Sample: TiO2 crystal films
Expectations: Difficult to image sample, high
-contrast/charging
Solution: Sputter coating current, reduced
voltage, immersion mode, increased WD
7. Image and Technique Portfolio:
FEI Tecnai SpiritTM TEM Surface Characterization
Client: Dr. Akira Ohnuma, Washington
University
Sample: Asymmetric hybrid colloidal
particles by precipitation polymerization
Expectations: Characterize a surface
modified polystyrene bead
8. Image and Technique Portfolio:
FEI NovaNanoTM SEM Murine Kidney Glomerulus
Client: Dr. Jeff Miner, Washington University
Sample: Kidney organogenesis in murine
models
Expectations: Processing protocol
development, basement membrane
preservation
9. Image and Technique Portfolio:
FEI NovaNanoTM SEM Aluminum Polarization Filters
Client: Dr. Victor Gruev, Washington
University
Representative Research Area:
Nanofabrication of aluminum polarization
filters
Expectations: Side wall analysis
10. Image and Technique Portfolio:
FEI Tecnai SpiritTM TEM Instrument Limit
Client: Dr. Byungkwon Lim, Washington
University
Sample: Palladium-platinum bimetallic
nanocrystals
Expectations: Ultrahigh magnification, show
dendritic morphology; enhanced activity
toward oxygen reduction in the fuel cell
industry.
11. Image and Technique Portfolio:
Efficient Sessions for Large Group Projects
Client: Dr. Kathy Hafer, Washington
University
Sample: lambda phage
Expectations: Provide large scale learning
experiment, including processing and
imaging for lambda phage
12. Image and Technique Portfolio:
Nanotoxicity in Yeast
Client: Dr. Yujie Xiong, Mark Brunson
(REU) Washington University
Sample: Saccharomyces cerevisiae
Expectations: Processing protocol
development for saccharomyces
cerevisiae
13. Image and Technique Portfolio:
FEI NovaNanoTM SEM Silica Chips on Silicon Substrate
Client: Dr. Lan Yang, Lina He
Washington University
Sample: Silica microresinators
on silicon substrates
Expectations: Lower contrast
image on difficult sample, ETD,
longer working distance
14. Image and Technique Portfolio:
Qualitative Analysis by EDS
Elemental Mapping/Overlay
Secondary Electrons Platinum 1 µm Overlay
Tin balls Overlay
15. Image and Technique Portfolio:
Line Mapping Ag and Pt Nanoparticles
Silver Nanoparticles on Carbon
Platinum Gold on Carbon
16. Image and Technique Portfolio:
Nanoskiving
Conventional Top Down Approach
High capital
Operating costs
No non-planar surfaces
Useful Material class restrictions
Versatile
Highly Developed
17. Conventional to Unconventional Techniques:
Conventional Processing of Biological Tissue
Fixation High Contrast Dry Thin
-Osmium tetroxide -Ethanol Gradient -Resin Infiltration
-Lead Citrate -Thermal Polymerization
-Uranyl Acetate -Section 65 nm
18. Image and Technique Portfolio:
Nanoskiving
PDMS
Cast and cure epoxy
Ultramicrotomy
EPOXY
Thin-section ~70nm
PDMS
Separate epoxy
EPOXY
Deposit metal
EPOXY
Embed in epoxy and cure
EPOXY
EPOXY Knife blade
19. Image and Technique Portfolio:
Nanoskiving
PDMS
Epoxy
Au on epoxy
Xu Q et al. Acc. Chem. Res.,
2008, 41 (12), pp 1566–1577
Epoxy
Knife
20. Image and Technique Portfolio:
Nanoskiving
1. Nanostructure manipulation
2. 3D Stacking
3. No clean room
Xu Q et al. Acc. Chem. Res., 2008, 41 (12),
pp 1566–1577
21. Collaborating with Nanoscale Informal Science Education Network
Participating in WU’s Educational Research Group
Organizing and Hosting Public Outreach Festivals at WU
24. Kristy D. Wendt
-Broad range of material and biological EM processing
-Enjoys addressing unique challenges
-Novel protocol development
-Fabrication and particle analysis
-Training and partnership building
-Works well with a broad range of clients to get beautiful results