nanoparticle monitoring system Articles

  • Recent Federal Developments

    TSCA/FIFRA EPA Extends Comment Period For Draft Guidance For Pesticide Registrants On Notifications, Non-notifications, And Minor Formulation Amendments: On October 5, 2017, the U.S. Environmental Protection Agency (EPA) issued a notice of extension of the comment period for the draft guidance  ...


    By Bergeson & Campbell, P.C.

  • On the thermodynamic stability of metal oxide nanoparticles in aqueous solutions

    Divided and ultra-divided systems such as colloidal and nanoparticle dispersions are generally unstable with regard to the size and number of their constituents because the solid-solution interfacial tension, acting as a driving force, leads to a reduction of the surface area to minimise the dispersion free enthalpy. Such phenomenon known as surface energy minimisation induces an increase in ...


    By Inderscience Publishers

  • Uncoated and coated ZnO nanoparticles life cycle in synthetic seawater

    The increasing production of nanoparticles has raised strong concerns regarding their environmental release. In nanoparticles life cycle scenarios, marine systems constitute one of the main final compartments, and nanoparticles fate in these environments needs to be assessed. Here, dissolution kinetics of commercial uncoated and organic‐coated ZnO nanoparticles in synthetic seawater has been ...


    By John Wiley & Sons, Ltd.

  • Application of refractable nanocomposite on cell based therapy in central nervous system

    Quantum Dots (QDs) are nano–particles carrying high stability fluorescence to follow the grafted cells which can be used in investigating the movement of cells and understanding the organogenesis of stem cells during development and wound repair processes in adulthood. For its easy acquirement and bypassing moral ethical issues, it makes the human adipose derived stem cells an attractive, ...


    By Inderscience Publishers

  • The role of nanotechnology in diabetes treatment: current and future perspectives

    Diabetes is a chronic disease that currently affects approximately 8% of the US population, and that number is expected to increase significantly by the year 2030. It is imperative that effective monitoring and treatment options be available to patients. Nanotechnology is a focal point in diabetes research, where nanoparticles in particular are showing great promise in improving the treatment and ...


    By Inderscience Publishers

  • Preparation and characterisation of 5–fluorouracil containing PLGA nanospheres coated with chitosan, for drug delivery

    The aim of this study was to design a new Drug Delivery System (DDS) based on poly (lactide–co–glycolide) (PLGA) biodegradable nanospheres (NS) coated with Chitosan (CTS), in order to prolong its residence time and to deliver the nanoparticles more specifically to cancer cells. We have tried three methods of incorporation of Chitosan in the nanoparticles, but only one was efficient. The first ...


    By Inderscience Publishers

  • Nonaqueous synthesis, assembly and formation mechanisms of metal oxide nanocrystals

    Nonaqueous solution routes to metal oxide nanoparticles are a valuable alternative to the well-known aqueous sol-gel processes, offering advantages such as high crystallinity at low temperatures, robust synthesis parameters and avoidance of surfactants in order to control the crystal growth. In the first part of this paper we give an overview of the various solution routes to metal oxides in ...


    By Inderscience Publishers

  • IEG multi level sampling well (MLSW) case study - IEG Technologie GmbH

    The MLSW-system is used for the recovery of multiple high-quality samples of soil-gas and groundwater from numerous isolated horizons in a single standard borehole. The system is also used to accurately delineate contamination profiles in three dimensions, which is vital or the design, installation and monitoring of remediation systems. MLSWs also can be used for activly dispersing substances ...


    By IEG Technologie GmbH

  • Effect of different water conditions on dissolution of nanosilver

    This study evaluates the time-dependent dissolution of nanosilver (nAg) in common electrolytes and natural waters. nAg was synthesized via Tollens’ method using sodium citrate as stabilizer; its morphology, UV–Vis spectrum, and particle size were characterized. The dissolved silver was monitored over time using filtration, centrifugation, and inductively coupled plasma atomic ...


    By IWA Publishing

  • Heterogeneous photocatalytic degradation of 4-nitrophenol by visible light responsive TiO2-polyaniline nanocomposites

    Different compositions of TiO2-polyaniline composites were prepared via chemical oxidative polymerisation of aniline over TiO2 nanoparticles followed by hydrothermal treatment. The prepared composites were characterised by various physicochemical techniques. From UV-VIS digital replay system (DRS) analysis, the shifts of the absorption maximum towards the visible region are indicated ...


    By IWA Publishing

  • Spolchemie site remediation and NanoRem field site application

    Site Remediation The Spolchemie site was chosen as one of the NanoRem case study sites, to test two types of nanoparticles (NPs) (zerovalent iron - nZVI and iron oxide NPs) for in situ remediation of BTEX (Benzene, Toluene, Ethylbenzene, and Xylenes) contamination. Nanoremediation was seen as an opportunity to enhance the in situ biodegradation of the BTEX contaminants and to reduce the ...


    By NANO IRON s.r.o.

  • Office Printers Emit Ultra fine particle pollution

    We’ve heard quite a bit about particulate matter PM10s and PM2.5s as components of air pollution that we are exposed to on a daily basis. Recent research papers are highlighting the dangers of ultra fine particles (UFPs), which have a diameter of less than 0.1 micrometres (or 100 nanometres). By contrast, the diameters of particulate pollution from PM10s and ...


    By Commercial Air Filtration

  • Nanotechnologies and FIFRA - Gradient Corporation EH&S Nano News, April 2006

    Untitled Document Bergeson & Campbell, P.C. is pleased to announce that Lynn L. Bergeson published an article appearing in the April 2006 issue of Gradient Corporation EH&S Nano ...


    By Bergeson & Campbell, P.C.

  • Tiny materials in countless products raise big questions for environment and health

    Nanotechnology opens a universe of possibilities — but also creates a world of unknowns. In recent years, efforts to develop the Next Big Thing — whether in medicine, computer technology, pollution prevention or high-performance materials — have turned to some really, really small things: nanomaterials. Working at the ...


    By Ensia

  • Reaching underground resources

    Accessing critical resources such as geothermal energy and natural gas requires drilling — an expensive, energy-intensive, messy process with today's technology. An MIT team has been looking into a more elegant approach. Instead of grinding rock to bits, they would use a continuous beam of energy to vaporize it and then blow out the tiny particles that form with a high-pressure stream of ...

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