New era of nanochemistry
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This document presents an overview of nanochemistry and its applications. It defines nanochemistry as the combination of chemistry and nanoscience, involving the synthesis of nano-scale structures and materials and how their properties depend on size, shape, and surface features. Some key applications discussed include using nanoparticles in medicine for more targeted drug delivery, in electronics to improve chip performance, in the military for sensors and camouflage clothing, in textiles for stain resistance and antibacterial properties, and in agriculture for more efficient pesticides and fertilizers. In general, nanotechnology allows improving existing products and developing new ones by manipulating materials at the nanoscale.
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Nanoparticles helps in Controlling the Plant Diseases, application of agricultural fertilizers, pesticides, antibiotics, and nutrients is typically by spray or drench application to soil or plants, or through feed or injection systems to animals. In this context, nanotechnologies offer a great opportunity to develop new products against pests (Caraglia et al., 2011). Nanoscale devices are envisioned that would have the capability to detect and treat an infection, nutrient deficiency, or other health problem, long before symptoms were evident at the macro-scale. The overall goal of this Nanoparticles is to reduce the number of unnecessary problems in agriculture (Thomas et al., 2011). In the management aspects, efforts are made to increase the efficiency of applied fertilizer with the help of nano clays and zeolites and restoration of soil fertility by releasing fixed nutrients (Dongling Qiao, et al., 2016). Nanoherbicides are being developed to address the problems in perennial weed management and exhausting weed seed bank. Bioanalytical Nanosensors are utilized to detect and quantify minute amounts of contaminants like viruses bacteria, toxins bio-hazardous substances etc. in agriculture and food systems (Tothill EI, 2011).
In this way, nanotechnology can be used as an innovative tool for delivering agrochemicals safely. More research should be done on the potential adverse effects of nanomaterials on human health, crops and the environmental safety. It is a challenge to Government and private sector as they have to ensure the acceptance of Nano foods. For it to flourish, continuous funding and understanding on the part of policy makers and science administrators, along with reasonable expectations, would be crucial for this promising field.
Nanotechnology in microbiology
This document discusses the potential applications of nanotechnology in microbiology. It begins by defining microbes and their size scale measured in microns. It then outlines several ways that nanotechnology can be used in microbiology, such as developing antimicrobial nanoparticles from materials like carbon, polymers, and metals to treat bacterial infections. The document also discusses characterization techniques for nanomaterials like transmission electron microscopy and describes some current applications of nanomaterials in areas like wound dressings, immune system modulation, and water disinfection. In conclusion, it emphasizes that nanotechnology research in microbiology is still limited in Palestine but has huge potential to be applied in many fields related to diagnostics, treatment, and infection control.
Nanotechnology ppt.pptx
This document discusses applications of nanotechnology in industrial biotechnology. It begins with an introduction to nanotechnology and nanoparticles, explaining how their small size and large surface area allow unique properties and interactions at the nanoscale level. The document then outlines several key innovations and industrial applications of nanotechnology, including in biomedical areas like drug delivery and disease diagnosis, agriculture with nanofertilizers, biofuels production, the oil industry, and the textile industry. Examples are provided for each application area.
Nanotechnology ppt
Nanotechnology involves manipulating materials at the nanoscale level between 1-100 nanometers to create structures with unique properties. One application is in water treatment where carbon nanotube membranes could reduce desalination costs and nanofilters may be used to clean contaminated ground and surface water. Nanotechnology also shows promise for air pollution control through nanofilters in vehicle exhausts and factory smokestacks. However, more research is still needed to fully understand potential health and environmental risks of nanoparticles.
Nanotechnology in dentistry
This document discusses the use of nanotechnology in dentistry. It begins with defining nanotechnology as the manipulation of materials at the nanoscale, which is 1 to 100 nanometers. The document then discusses various techniques used in nanotechnology, such as top-down and bottom-up approaches. It provides examples of how nanotechnology can be applied in dentistry, including use of nanomaterials for fillings, impression materials, and targeted drug delivery for periodontal diseases. The document concludes that nanotechnology has potential to improve dental care but also social issues around safety and regulation need to be addressed.
Nanomaterial application in healthcare
This document discusses the use of nanomaterials in healthcare. It describes how dendrimers, nanoparticles, and carbon nanotubes can be fabricated and used for medical applications like cancer treatment and drug delivery. Specifically, carbon nanotubes are used for detection of oral cancer and stem cell therapy. Nanoparticles can deliver drugs to tumors and combat infections. Dendrimers are precisely-constructed nanoscale compounds useful for drug delivery, gene therapy, and cancer treatment. The document also outlines methods for synthesizing these nanomaterials, including laser ablation and chemical vapor deposition.
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APPLICATIONS OF NANO AND BIOTECHNOLOGY IN TEXTILE INDUSTRIES
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Current descriptions of immersive learning cases are often difficult or impossible to compare. This is due to a myriad of different options on what details to include, which aspects are relevant, and on the descriptive approaches employed. Also, these aspects often combine very specific details with more general guidelines or indicate intents and rationales without clarifying their implementation. In this paper we provide a method to describe immersive learning cases that is structured to enable comparisons, yet flexible enough to allow researchers and practitioners to decide which aspects to include. This method leverages a taxonomy that classifies educational aspects at three levels (uses, practices, and strategies) and then utilizes two frameworks, the Immersive Learning Brain and the Immersion Cube, to enable a structured description and interpretation of immersive learning cases. The method is then demonstrated on a published immersive learning case on training for wind turbine maintenance using virtual reality. Applying the method results in a structured artifact, the Immersive Learning Case Sheet, that tags the case with its proximal uses, practices, and strategies, and refines the free text case description to ensure that matching details are included. This contribution is thus a case description method in support of future comparative research of immersive learning cases. We then discuss how the resulting description and interpretation can be leveraged to change immersion learning cases, by enriching them (considering low-effort changes or additions) or innovating (exploring more challenging avenues of transformation). The method holds significant promise to support better-grounded research in immersive learning.
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在线办理(salfor毕业证书)索尔福德大学毕业证毕业完成信一模一样
学校原件一模一样【微信：741003700 】《(salfor毕业证书)索尔福德大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
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The binding of cosmological structures by massless topological defects
Assuming spherical symmetry and weak field, it is shown that if one solves the Poisson equation or the Einstein field
equations sourced by a topological defect, i.e. a singularity of a very specific form, the result is a localized gravitational
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spherical shell without any underlying mass. Moreover, a large-scale structure which exploits this solution by assembling
concentrically a number of such topological defects can establish a flat stellar or galactic rotation curve, and can also deflect
light in the same manner as an equipotential (isothermal) sphere. Thus, the need for dark matter or modified gravity theory is
mitigated, at least in part.
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https://www.etran.rs/2024/en/home-english/EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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New era of nanochemistry
- 1. NEW ERA OF NANOCHEMISTRY PRESENTED BY J.AJITHKUMAR;M.Sc; DEPT OF CHEMISTRY. SRI KALISWARI COLLEGE.
- 2. NANOTECHNOLOGY • Nano chemistry is the combination of chemistry and Nano science. • Nano chemistry is associated with synthesis of building blocks which are dependent on size, surface, shape and defect properties. • Several chemical modification on nanometer scaled structures, approves effects of being size dependent.
- 3. • Greek word nanos means very small. • Nano- a combining form with the meaning “very small, minute • one billionth” 10-9 m.
- 4. APPLICATIONS OF NANOTECHNOLOGY • MEDICINAL FIELD • ELECTRONICS • MILLITERY FIELD • TEXTILES • PAINT INDUSTRY • COSMETICS • AGRICULTURE.
- 6. MEDICINAL FIELD • Drug medicine, therapeutics. • Diagnoses of disease. • Nano robots. • Sake of increasing knowledge of human body. • E.g. abraxane albumin bound NPs to treat the breast cancer and pancreatic cancer. • Doxil to treat the ovarian cancer. • Limitation conventional drug selectivity and resistance and solublity.
- 7. • E.g. quantum dots are used to resist antibiotic resistant infection. • Drug delivery to tumors • gold nanoparticles for targeted delivery of drugs to tumors. • cadmium selenite quantum dots are absorbed by tumor cells and glow easy to operate out.
- 8. ELECTRONICS
- 9. ELECTRONICS • To improve the physical strength and reduce the cost of the chips fabrication.(nanolithography) • Reducing the size of the electronic equipments with high efficiency. • Improve the storage capacity of devices like memory card. • E.g. build up a high speed computer with nanostructured semiconducting meterial like silicon.
- 10. MILITERY FIELD
- 11. MILLITERY FIELD • The cloths wear by the soldiers changed color with changing the surroundings. • Warning signals by the flexible light emitting display. • To monitor heart beat and temperature and respiration by Nano sensors. • Detection of explosives and toxic gases. • E.g. carbon nanotubes.
- 12. TEXTILE INDUSTRY
- 13. TEXTILE INDUSTRY • Production of fabrics for the filtration process and medical field. • Air breathability. • Water resistance and strain resistence. • Wrinkle prevention. • Antibacterial activity of cloths. • E.g. titanium dioxide coated fabrics and silver NPs .
- 14. PAINT INDUSTRY
- 15. PAINT INDUSTRY • To improve efficiency of paints like long durability. • Scratch resistant. • Anti corrosion and flame resistant. • Oil and water retardant. • Cooler paints and antimicrobial paints. • E.g. ammonium poly phosphate, gold and Ag Nanoparticles. Fumed silica.
- 16. AGRICULTURE
- 17. AGRICULTURE • Nanoparticles can control the disease caused by pathogens. • Nanoparticles contains fertilizers are also to be used for efficient growth of the plants. • Nano pesticides are also be used to control the pathogens. • E.g. Nano alumina silicate used as a environmental safety pesticide. Nano silver.
- 18. COSMETICS
- 19. COSMETICS • The nanoparticles are also used in the cosmetics to improve better adsorption of cosmetics stability and sunscreen protection and skin care. • Zinc oxide nanoparticles cure skin diseses like acne. • Titanium dioxide NPs can act as a sunscreen protection.
- 20. DYE AND POLYMER INDUSTRY
- 21. DYE AND POLYMER INDUSTRY • Now a days majority of dyes are used in the textile industry to coloring the cloths. • So the water is polluted by the organic dyes so the nanoparticles are used to dissociate the dyes to simple molecule like water and carbon dioxide and ammonia. • E.g. silver manganese dioxide Nano composite. • Platinum manganese dioxide Nano composite.
- 22. REFERENCES • www.researchgate.net/publication/2320315 93/nanotechnology. • www.technicaltextile.net/articles/advancem ent nanotechnology. • https://www.ncbi.nlm.nih.gov/pmc/articles/ PMC419715 • https://www.nanowerk.com/nanotechnolog y-in-medicine.php
- 23. THANK YOU