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Theoretical Analysis of Au-V Nanoalloy Clusters: A Density Functional Approach
Published in Satya Bir Singh, Alexander V. Vakhrushev, A. K. Haghi, Materials Physics and Chemistry, 2020
Prabhat Ranjan, Tanmoy Chakraborty
In recent decade, nanoengineering has progressed as a new research arena in the field of science and technology. Nanoengineering is becoming one of the integral parts of human’s life due to its potential applications in the domain of photovoltaics cells, clean-energy industries, photocatalysts, cosmetics, petrochemicals, pharmaceuticals, etc.1-10 Nanoparticles have been categorized as per their size range, which varies between 1 and 100 nm.1-5 Due to large surface-to-volume ratio and quantum mechanics effects, nanoparticles offer diverse physico-chemical properties. However, it has been observed in the case of nonlinear alteration that physical and chemical properties of nanoparticles also change due to change in size, shape, and composition.6 There are a number of scientific reports available in which change in electronic, optical, and magnetic properties is reported due to change in their size, shape, and composition.1–3 A The study on nanoparticles is of considerable interest due to its potential technological applications in the field of nanoscience, biophysics, life sciences, nano-electronics, catalysis, etc. 1,3,7–10 A systematic approach of nanoparticles with well-defined geometry and composition may offer some other alternatives for better performance.8
Nano- and Microscience, Engineering, and Technology
Published in Sergey Edward Lyshevski, Nano- and Micro-Electromechanical Systems, 2018
The scientific, engineering, technological, ethical, environmental, human resource, commercialization, and legal implications, as well as other societal challenges, issues, and problems, must be addressed. There are even demands to ban nanotechnology. Bans on nano-everything (science, engineering, and technology) will set the downhill trajectory to overall human progress, delaying future progress and scientific developments. It is also unclear how the nano-everything ban activists envision banning nanoscience and engineering. This book introduces micro- and nanoengineering and science with the belief that nanoengineering and nanoscience (the fundamentals of which have been largely developed within the last 100 years) will benefit and prosper each and every person and living system in the world. Multidisciplinary nanoscience, nanoengineering, and nanotechnology demand increasing levels of interaction and association. There is a critical need to deliver novel discoveries and technologies to consumers, customers, lawyers, legislators, policy makers, and media. There is an increasing need to forecast and evaluate the social contexts, ethical implications, and environmental consequences of nanoscience, nanoengineering, and nanotechnology. It is undeniable that nanotechnology spurs societal and ethical concerns that have some ground. Some nanotechnology ban activists mystify false and real nanotechnology implications and dangerously confuse even themselves by equating nanotechnology and nanobiotechnology and by not distinguishing science and technology. It seems that they would like to ban nano-everything. It may not be a constructive and realistic objective.
Glossary of scientific and technical terms in bioengineering and biological engineering
Published in Megh R. Goyal, Scientific and Technical Terms in Bioengineering and Biological Engineering, 2018
Nanoengineering represents the extension of the engineering fields into the nano-scale realm (nanofabrication, nanodevices, etc.). It uses chemistry to construct nanostructures and their composites, then focus the attention on the electronic, optical, and transport properties of these nanostructures and the macroscopic films and materials that can be constructed from them. This includes common frontier of chemistry, condensed matter physics, optics, genetics and bioengineering.
Nephrotoxicity of nickel nano and microparticles in rat- a comparative, time dependent study with special reference to antioxidant defence system
Published in Inorganic and Nano-Metal Chemistry, 2022
Meenu Singh, Yeshvandra Verma, S. V. S. Rana
Rapid developments in nano-engineering and technology have introduced variety of nano-materials viz. carbon nanotubes, fullerenes, quantum dots and metal oxide nanoparticles to different sectors, that is, agriculture, industry, commerce, environment and medicine.[1–3] According to an estimate, about 1015 consumer products viz electrochromic coatings, plastics, textiles, nanowires, nanofibers and adhesives are already known to contain nanomaterials.[4] Available literature suggests that nanoparticles of nickel too are now being increasingly used in multiple applications, that is, sensors, electrodes, catalysts, ceramic capacitors, nanowires, nanofibres, adhesives and nanofilters, and so on.[5] Occupational/industrial or environmental exposures to nickel oxide nanoparticles (NiONPs) have consequently resulted into serious health issues in man.[6] Long term exposure to NiONPs was reported to manifest into liver, spleen, lung and cardiac toxicity in experimental animals.[7–9] Genotoxic, mutagenic and carcinogenic properties of NiONPs have also been investigated by a few authors.[10,11]