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Author: Murray Vincent Johnston Publisher: ISBN: Category : Air Languages : en Pages : 60
Book Description
"This report describes a study in which a nano aerosol mass spectrometer (NAMS) was used to study composition of nanoparticles in real time near a major roadway intersection. Dr. Murray V. Johnston of the University of Delaware, Newark, and colleagues conducted a field test in Wilmington, Delaware, to evaluate performance of the instrument in a real-world setting and to assess whether it could aid in identifying the major source contributions to nanoparticle spikes and background levels, including distinguishing diesel from gasoline vehicles."--Publisher's website.
Author: Murray Vincent Johnston Publisher: ISBN: Category : Air Languages : en Pages : 60
Book Description
"This report describes a study in which a nano aerosol mass spectrometer (NAMS) was used to study composition of nanoparticles in real time near a major roadway intersection. Dr. Murray V. Johnston of the University of Delaware, Newark, and colleagues conducted a field test in Wilmington, Delaware, to evaluate performance of the instrument in a real-world setting and to assess whether it could aid in identifying the major source contributions to nanoparticle spikes and background levels, including distinguishing diesel from gasoline vehicles."--Publisher's website.
Author: Wendel Wohlleben Publisher: CRC Press ISBN: 1466567880 Category : Science Languages : en Pages : 468
Book Description
The incorporation of nanomaterials into products can improve performance, efficiency, and durability in various fields ranging from construction, energy management, catalysis, microelectronics, plastics, coatings, and paints to consumer articles such as foods and cosmetics. But innovation never comes at zero risk. The potential hazards resulting fr
Author: Saura C. Sahu Publisher: John Wiley & Sons ISBN: 1118855868 Category : Science Languages : en Pages : 713
Book Description
The Handbook of Nanotoxicology, Nanomedicine and Stem Cell Use in Toxicology provides an insight into the current trends and future directions of research in these rapidly developing scientific fields. Written by leading scientists and experts, the Handbook will be of interest to various scientific disciplines including toxicology, medicine, and pharmacology, as well as food, drug, and other regulatory sciences.
Author: Ing. V.-D. Hodoroaba Publisher: Elsevier ISBN: 0128141832 Category : Science Languages : en Pages : 566
Book Description
Characterization of Nanoparticles: Measurement Processes for Nanoparticles surveys this fast growing field, including established methods for the physical and chemical characterization of nanoparticles. The book focuses on sample preparation issues (including potential pitfalls), with measurement procedures described in detail. In addition, the book explores data reduction, including the quantitative evaluation of the final result and its uncertainty of measurement. The results of published inter-laboratory comparisons are referred to, along with the availability of reference materials necessary for instrument calibration and method validation. The application of these methods are illustrated with practical examples on what is routine and what remains a challenge. In addition, this book summarizes promising methods still under development and analyzes the need for complementary methods to enhance the quality of nanoparticle characterization with solutions already in operation. Helps readers decide which nanocharacterization method is best for each measurement problem, including limitations, advantages and disadvantages Shows which nanocharacterization methods are best for different classes of nanomaterial Demonstrates the practical use of a method based on selected case studies
Author: Mihai Lungu Publisher: Springer ISBN: 3319117289 Category : Technology & Engineering Languages : en Pages : 359
Book Description
The focus of this interdisciplinary volume is on four areas of nanoparticle research: characterization, manipulation, and potential effects on humanity and the environment. The book includes a comprehensive collection of data on industrial nanoparticle creation and the characterization of the nanoscale products of these processes. The authors describe the effects of these nanoscale structures on human health and discuss prospective implementations for detection and characterization of nanoparticles in the environment. They recommend, utilizing the most up-to-date understanding of nanotechnology, methods for limiting the negative effects of these products on the environment and human health through manipulation, sorting, and filtration.
Author: Chaudhery Mustansar Hussain Publisher: Academic Press ISBN: 0128235934 Category : Science Languages : en Pages : 588
Book Description
Handbook of Microbial Nanotechnology is a collection of the most recent scientific advancements in the fundamental application of microbial nanotechnology across various sectors. This comprehensive handbook highlights the vast subject areas of microbial nanotechnology and its potential applications in food, pharmacology, water, environmental remediation, etc. This book will serve as an excellent reference handbook for researchers and students in the food sciences, materials sciences, biotechnology, microbiology and in the pharmaceutical fields.Microbial nanotechnology is taking part in creating development and innovation in various sectors. Despite the participation of microbial nanotechnology in modern development, there are some hindrances. The lack of information, the possibility of adverse impacts on the environment, human health, safety and sustainability are still a challenge. This handbook addresses these challenges. Offers up-to-date, scientific information on the integration of microbiology and nanotechnology Explores how nanotechnology can improve the detection of trace chemical contaminants, viruses and bacteria in food and other industry applications Provides readers with a fundamental understanding of microbial nanotechnology and its challenges Includes real-time applications with case studies to illustrate how microbial nanotechnology influences modern sciences and technologies
Author: Simona Clichici Publisher: BoD – Books on Demand ISBN: 1789846161 Category : Technology & Engineering Languages : en Pages : 247
Book Description
In the last decade, nanomaterials have become a double-edged sword. On one hand, nanomaterials have proven their limitless potential not only for technological applications, but also for medical ones. On the other hand, the increasing use of these nanomaterials has raised concerns regarding their safety for environmental and human health, due to their potential toxicity. The toxic effects of nanomaterials depend on their type, surface geometry, diameter, length and function. This book intends to provide a comprehensive evidence-based overview of nanomaterial toxicity, from their synthesis and characterization, environmental impact, tests to assess their toxicity in vitro and in vivo, ways to modulate their impact on living organisms, to their beneficial use in biomedical applications.
Author: Arshath Abdul Rahim Publisher: ISBN: Category : Languages : en Pages :
Book Description
"Engineered nanoparticles (ENPs) are being used extensively in a variety of industrial and consumer products due to their high specific surface area. A significant fraction of these ENPs used in products enter municipal wastewater treatment plants (WWTPs) and get eventually discharged to the environment primarily with waste sludge from settling tanks and to a smaller extent with effluent waters. However, due to the limited quantitative data available on ENPs in wastewater (WW) effluent, sludge and biosolids, assessment of environmental risks and bio-uptake of ENPs is difficult. The overall objective of this thesis is to give a better understanding of the release of NPs from paints and presents newly developed techniques to detect and measure NPs in one of the major environmental sinks (WWTPs).The first objective of this study involved the development and optimization of methods to detect the size, particle size distribution and concentration of metal (Ag and Cu) ENPs in sludge and biosolids through the application of various extraction procedures and the subsequent analysis of aqueous extracts by single particle mode in inductively coupled plasma mass spectrometry (spICP-MS). ENPs in aqueous extracts of biosolids were detected with an approximate mean size ranging from 16.0 ± 0.2 to 41.3 ± 0.5 nm for Ag, and 42.9 ± 0.3 to 142.8 ± 1.8 nm Cu with a concentration in the range of 107 to 1010 NPs/g of dry weight from 11 municipal WWTPs across Canada. The second objective of this thesis focused on the detection and the characterization of nAg and nCu using spICP-MS in WW effluent samples, by using sequential cycles of centrifugal ultrafiltration (CUF) to concentrate NPs into a smaller volume to improve detectability. WW effluent from 9 different Canadian municipal WWTPs were analysed for nAg and nCu using spICP-MS. Concentration of nCu varied from 0.1 ng/L to 12 ng/L (68.0 ± 0.3 nm ) and nAg ranged from 0.08 to 0.43 ng/L (19.3 ± 0.1 to 34.7 ± 7.2 nm) depending on the WWTP effluent .These measured concentrations of NPs in WW effluent are 103 to 107 folds lower than in WW biosolids. The third objective was to quantify the fraction of Ag released as ENPs or as dissolved species from painted surfaces over time due to contact with different pH solutions and/or direct exposure to sunlight; and to compare the colloidal stability and bacterial toxicity of the pristine nAg and released nAg from painted surface embedded in the paint matrix. The results showed that the release of nAg at acidic pH was 10-folds higher than with neutral pH and 5.6-folds higher than at basic pH. nAg released with acid pH was smaller in size, with mean diameter of 37.1 ± 2.1 nm compared to 64.6 ± 4.3 nm with neutral pH. The paint-released nAg was significantly more colloidally stable, resistant to dissolution and toxic compared to pristine nAg, at neutral pH. The fourth objective was to quantify the fraction of nTiO2 released from painted surfaces over time due to contact with different pH solutions and/or direct exposure to sunlight; and to compare the colloidal stability and bacterial toxicity of the pristine nTiO2 and released nTiO2 from painted surface embedded in the paint matrix. The release of nTiO2 from painted surface and its aggregation state differed depending on the pH conditions. Nano-enabled commercial paint with nTiO2 released lesser NPs (similar to custom made nTiO2) compared to other commercials paints with mixture nano-, micron- and larger particles of TiO2. nTiO2 released from painted surface behaved differently in stability, particle size distribution and toxicity compared to pristine nTiO2"--
Author: Murray Vincent Johnston
Author: Murray Vincent Johnston
Author: Wendel Wohlleben
Author: Saura C. Sahu
Author: Ing. V.-D. Hodoroaba
Author: Mihai Lungu
Author: 
Author: Chaudhery Mustansar Hussain
Author: Simona Clichici
Author: Arshath Abdul Rahim
Author: Wei Li