Papers:
A Comprehensive Regulatory Policy Analysis
Nanotechnology faces three significant challenges. First, the industry faces economic challenges due to increasing risk uncertainty, inefficient commercialization, and environmental, health, and safety (EHS) externalities. Secondly, legal challenges stem from a legal framework that fails [...]
Evaluating nanomaterial exposures in the workplace: A description of the approach used by NIOSH and a summary of findings from 12 site visits
Health, safety, and environmental issues continue to be a high priority area to be addressed during the commercialization of nanomaterials or nanomaterial-enabled products (Lux 2008). Facilities engaged in the production or use of engineered nanomaterials, [...]
Waste water is gold under our feet
Each winter, we can see the heat, warm air, coming up the sewer shafts in city streets and we should realize the enormous heat potential that is down there and just flows away, untapped and [...]
Sustainable Desalination of Fresh Water
Seawater reverse osmosis is an advanced desalination process used to filter water in which seawater is forced through a semi-permeable membrane, producing pure water on one side and concentrated brine on the other. The process, [...]
AltelaRain Produced Water Treatment & Re-use
Altela Inc. offers a fundamentally new water desalination product, the AltelaRainSM System (ARS) that inexpensively removes nearly 100% of dissolved salts and other contaminants from industrial wastewaters and undrinkable brackish waters. Altela has taken the [...]
Using Secuirty Monitoring Tool to Improve Operation of the Water Distribution System
The distribution system represents the last analytical frontier in the water quality industry. Since 9/11, numerous communities have installed multi-parameter monitoring stations in locations throughout the distribution system as early warning systems based on potential [...]
Innovations in Energy Efficient Decentralized Wastewater Treatment Systems:
This paper will provide a brief overview of differences between conventional centralized wastewater treatment systems and the more recent decentralized systems. Brief comparisons will be made regarding differences in scalability, economics, energy efficiency, and environmental [...]
Enviroquip Membrane Bioreactor Systems – Novel Wastewater Treatment Process for Enhanced Nutrient Removal
Traditional wastewater treatment technologies are not sufficient in protecting sensitive receiving waters. Agencies are required to meet Enhanced Nutrient Removal (ENR) limits that are increasingly difficult to achieve (e.g. 3.0mgN/l and 0.1mgP/l). Various techniques are [...]
Gold nanoparticles caused learning impairment in mice
Chen Y-S, Hung Y.-C., Liau I., Lin L.-W., Hong M.-Y., Huang G.S., National Chiao Tung University, TW
Aims : To investigate the toxic effect of gold nanoparticles (GNP) to the learning and memory of mice. Key findings: Both 17 nm and 37 nm GNPs induced severe sickness in mice. However, only 17 [...]
Cytotoxicity and genotoxicity of silver nanomaterials
Summary We have investigated the cytotoxic effect of dialyzed silver nanoparticles (Ag NPs), PEGylated Ag NPs and silver nanorods on human cultured cells. The cytotoxicity of 24 h treatment with Ag NPs at 0.25, 0.5, [...]
Size Matters: The outer diameter of multiwalled carbon nanotubes (MWCNTs) affects gene expression in female fathead minnows (Pimephales promelas)
We used oligonucleotide microarrays to examine the gene expression patterns in female fathead minnows (Pimephales promelas) exposed to two different sizes (<8 nm and 50-80 nm outer diameter) and three concentrations (0.1 mg/L, 0.3 mg/L, [...]
A Nanotechnology Policy Framework for California
We are in the process of writing a nanotechnology framework policy recommendation for the state of California. It will be the first report of its kind to incorporate scientific analysis with regulatory recommendations. It will [...]
Removal of Heavy Metals From Aqueous Solutions with Calcium Alginate Beads
The present research is focused on the development of a bio-sorbent based on alginate beads. The alginate is a natural polymer extracted from brown seaweed with capability of hosting divalent cations in gel state, which [...]
Degradation of Phenol in Waste Water Using Alcohol-Free Enzyme Encapsulated Silica Aerogel
Encapsulation of enzyme tyrosinase into nano-porous silica aerogel via an alcohol-free colloidal sol-gel route using rice husk ash (RHA) as silica source was studied. Tyrosinase encapsulated silica aerogel (TESA) was synthesized with and without solvent [...]
Use of different natural Extracts from Tropical plants as Green Inhibitors for Metals
The authors present an overview of the work & results obtained in the framework of a bilateral cooperation program between Belgium and Vietnam to discover new environmentally-friendly corrosion inhibitors or ‘harmless corrosion inhibitors to nature” [...]
A Sonoelectrochemical Synthesis of Nanosized CdS on TiO2 Nanotube-Array for Enhancing Photoelectrochemical Reactivity
The nanoparticles of CdS were precipitated onto a self-organized TiO2 nanotube array photo-electrodes by using sonochemical synthesis combining with constant current electrochemical deposition. It is indicated that the CdS nanoparticles with average diameter of 28.1 [...]
Effect of surfactant on TiO2/UV mediated heterogeneous photocatalytic degradation of DDT in contaminated water
The toxic effects from the use of pesticides are of great concern to the environment. The pesticides containers are not treated according to the Mexican normativity and hence increase the pollutant levels in the environment, [...]
12 Billion Dollars Annually Expended on Throw away Filters- There is a new technology alternative to this wasteful practice
In a world that is focussed at finding methods to use less energy or alternatives to existing energy driven products, one obvious change that is essential is the reduced use of disposable products. Specifically this [...]
The Need and the Quest for Developing Water Treatment Systems for Masses Which are Low Cost, Low Tech and Use Locally or Easily Available Material
In todays world, a large set of environmental challenges exist. The extent of the environmental damage is alarming and the consequences could be dire. Existence of healthy life requires availability of safe food and clean [...]
Isolation and Characterization of Benzene Degrading Bacteria from Gasoline Contaminated Water
The BTEX (benzene, toluene, ethylbenzene, and xylene)compounds are hydrocarbon pollutants that are considered as significant threat to the health and environment. Among BTEX, benzene is of major concern, because it is soluble, mobile, toxic, carcinogenic [...]
Synthesis of thermal interface material with high thermal conductivity for high efficacy of LED
Han C.J., Han J.-I., Yu S.H., Hong S-J, Kim Y-S, Han C.J., Han J.-I., Korean Electronics Technology Institute, KR
Thermal dissipation problem for LED is critical for high efficacy and reliability. Inorganic filled grease type thermal interface material (TIM) has widespread use for heat management of LED. Conventional TIM materials, however, has relative low [...]
The SURVISMETER – a Green Technology in Service
Viscosity is a measure of stickiness and the reverse is fluidity. It is a valuable data for all liquids in the oil, lubricant, paint, polish, food, beverage, cosmetic, biosolvents, drugs and pharma, polymer, nanomaterials, and [...]
Journal: TechConnect Briefs
Volume: 2, Nanotechnology 2009: Life Sciences, Medicine, Diagnostics, Bio Materials and Composites
Published: May 3, 2009
Industry sectors: Advanced Materials & Manufacturing | Energy & Sustainability
Topic: Environmental Health & Safety of Nanomaterials
ISBN: 978-1-4398-1783-4