The Experts below are selected from a list of 8727 Experts worldwide ranked by ideXlab platform
Angel Ríos - One of the best experts on this subject based on the ideXlab platform.
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Nanomaterials for water cleaning and desalination, energy production, disinfection, agriculture and green chemistry
Environmental Chemistry Letters, 2017Co-Authors: Mª Jesús Villaseñor, Angel RíosAbstract:Nanomaterials may help to solve issues such as water availability, clean energy generation, control of drug-resistant microorganisms and food safety. Here we review innovative approaches to solve these issues using nanoTechnology. The major topics discussed are wastewater treatment using carbon-based, metal-based and polymeric nanoadsorbents for removing organic and metal contaminants; nanophotocatalysis for microbial control; desalination of seawater using nanomembranes; energy conversion and storage using solar cells and hydrogen-sorbents nanostructures; antimicrobial properties of Nanomaterials; smart delivery systems; biocompatible Nanomaterials such as nanolignocellulosis and starches-based materials, and methods to decrease the toxicity of Nanomaterials. Significantly, here it is reviewed two ways to palliate Nanomaterials toxicity: (a) controlling physicochemical factors affecting this toxicity in order to dispose of more safe Nanomaterials, and (b) harnessing greener synthesis of them to bring down the environmental impact of toxic reagents, wastes and byproducts. All these current challenges are reviewed at the present article in an effort to evaluate environmental implications of Nanomaterials Technology by means of a complete, reliable and critical vision.
Maciej Jarota - One of the best experts on this subject based on the ideXlab platform.
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Legal protection of employee health when working with nanoparticles. Comments on the appropriateness of introducing european legal regulations
Medycyna pracy, 2019Co-Authors: Maciej JarotaAbstract:The aim of this publication is to analyze legal regulations related to occupational health and safety in the context of the development of Nanomaterials Technology. The author reflects on the possibility of introducing legal structures at the European Union level to facilitate protecting employee health in the work environment related to nanoparticles. Employers, in the scope of their duties, should take the necessary measures to ensure the safety and health of employees, including the prevention of threats related to the performance of official duties, information and training, as well as providing the necessary organizational framework and resources. Different organizations or research institutes are working on researching the numerical occupational exposure limits for nanoparticles, but the right direction to protect workers' health from exposure to nanoparticles is still at an early stage of diagnosis. It seems important to study the extent to which current methods and tools for risk assessment are up to date, and the elements that should be adapted to the characteristics of nanoparticles. The paper attempts to answer the question of whether the current legal protection of employees, in the context of risks and threats posed by nanoTechnology, is sufficient. Med Pr. 2019;70(5):633-47.
Mª Jesús Villaseñor - One of the best experts on this subject based on the ideXlab platform.
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Nanomaterials for water cleaning and desalination, energy production, disinfection, agriculture and green chemistry
Environmental Chemistry Letters, 2017Co-Authors: Mª Jesús Villaseñor, Angel RíosAbstract:Nanomaterials may help to solve issues such as water availability, clean energy generation, control of drug-resistant microorganisms and food safety. Here we review innovative approaches to solve these issues using nanoTechnology. The major topics discussed are wastewater treatment using carbon-based, metal-based and polymeric nanoadsorbents for removing organic and metal contaminants; nanophotocatalysis for microbial control; desalination of seawater using nanomembranes; energy conversion and storage using solar cells and hydrogen-sorbents nanostructures; antimicrobial properties of Nanomaterials; smart delivery systems; biocompatible Nanomaterials such as nanolignocellulosis and starches-based materials, and methods to decrease the toxicity of Nanomaterials. Significantly, here it is reviewed two ways to palliate Nanomaterials toxicity: (a) controlling physicochemical factors affecting this toxicity in order to dispose of more safe Nanomaterials, and (b) harnessing greener synthesis of them to bring down the environmental impact of toxic reagents, wastes and byproducts. All these current challenges are reviewed at the present article in an effort to evaluate environmental implications of Nanomaterials Technology by means of a complete, reliable and critical vision.
Luciana Dini - One of the best experts on this subject based on the ideXlab platform.
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Nanomaterials Technology for Research Radiobiology
Current Clinical Pathology, 2016Co-Authors: Elisa Panzarini, Luciana DiniAbstract:Advances in nanoscience and nanoTechnology have notably improved the field of oncology in terms of cancer diagnosis and therapy. Recently, there is a great interest in developing multifunctional systems for theranostic approaches within a single formulation, which is able to combine detection, treatment, monitoring, and image-guided interventions, allowing a real-time monitoring drug delivery, release, and efficacy. Nanomaterials (NMs), such as liposomes, dendrimers, quantum dots, iron oxide-, metallic-, and magnetic-nanoparticles (NPs), perfluorocarbon and carbon nanotubes, delivering anticancer radioisotopes, are a suitable radionanomedicine theranostic system. This chapter provides an overview on NMs exploitable in cancer radio-therapy and imaging, highlighting the emerging possibilities of theranostic nanomedicines in cancer cure. The current NMs platforms for future clinical application with regard to imaging and treatment of glioblastoma, one of the most deadly diseases characterized by high resistance to chemotherapy and radiotherapy, will be discussed.
M.g. Lines - One of the best experts on this subject based on the ideXlab platform.
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Nanomaterials for practical functional uses
Journal of Alloys and Compounds, 2007Co-Authors: M.g. LinesAbstract:Abstract The term nanoTechnology, which enjoys wide public use, is a concept that covers a wide range of developments in the field of nanoscale electronic components, along with its decades-old application in nanocarbon-black particles or silicates manufactured using the sol–gel process. When we refer to nanoTechnology today, the term is limited to dealing with particles or assemblies whose dimensions range in size from a few nanometres up to around 100 nm. Intensive development work is now being carried out in new fields in many industrial and university research facilities, with the help of nanoscale particles or subassemblies. Along with the already familiar items, this applications-oriented research has covered such new developments as carbon nanotubes or electronic circuits. All materials are composed of grains, which consist of many atoms. Grains of conventional materials vary in size from tens of microns to one or more millimetres. Nanomaterials are no longer merely a laboratory curiosity and have now reached the stage of commercialization being lead by activity, often government supported, in the USA, UK, Japan, Singapore, Malaysia, Taiwan, Korea, Germany and in recent years China and Australia. This is the opening of a whole new science in some respects, and the usefulness to our everyday lives will become increasingly apparent. The potential of nanominerals, as just one sector of Nanomaterials Technology have some very real and useful outcomes: • Production of materials and products with new properties. • Contribution to solutions of environmental problems. • Improvement of existing technologies and development of new applications. • Optimisation of primary conditions for practical applications. These materials are revolutionizing the functionality of material systems. Due to the materials very small size, they have some remarkable, and in some cases, novel properties. Significant enhancement of optical, mechanical, electrical, structural and magnetic properties are commonly found with these materials. Some key attributes include: • Grain size on the order of 10 −9 m (1–100 nm). • Extremely large specific surface area. • Manifest fascinating and useful properties. • Structural and non-structural applications. • Stronger, more ductile materials. • Chemically very active materials. Production of Nanomaterials . There are various widely known methods to produce Nanomaterials other than by direct atom manipulation. In plasma arcing , the very high temperatures associated with the formation of an arc or plasma is used to effectively separate the atomic species of feedstock, which quickly recombine outside the plasma to form nanosized particles, which may have novel compositions. In the case of chemical vapour deposition , feed gases are reacted in a chamber and the resulting species attracted to a substrate. Once again the reaction products can be controlled and not only in terms of composition but also in terms of how they are deposited. The substrate effectively provides a template from where the deposited coating can grow in a very well controlled manner. Electro-deposition involves a similar process; however the controlled coating is deposited from solution by the application of an electric field. Sol–gel synthesis uses chemical means to produce intimately mixed compounds that are hydrolysed into gels. The gels can be deposited on any surface and shape at well controlled thicknesses and on subsequent heating, decompose to leave a thin layer of the desired coating. This technique is well suited to coating large surface areas with very well defined nanometre scale compounds. In high intensity ball milling , as the name suggested, high impact collisions are used to reduce macrocrystalline materials down into nano-crystalline structures without chemical change. A relatively new technique termed Mechanochemical Processing (MCP) Technology, being developed by Advanced Nanotechnologies based in Perth, is a novel, solid-state process for the manufacture of a wide range of nanopowders. Dry milling is used to induce chemical reactions through ball-powder collisions that result in nanoparticles formed within a salt matrix. Particle size is defined by the chemistry of the reactant mix, milling and heat treatment conditions. Particle agglomeration is minimized by the salt matrix, which is then removed by a simple washing procedure.
