Environmental Health & Safety of Nanomaterials – Page 24

Nano-Catalysts and Colloidal Suspensions of Carbo-Iron for Environmental Application

Mackenzie K., Hildebrand H., Kopinke F.-D., Helmholtz Centre for Environmental Research - UFZ, DE

The presentation contains two innovative applications of nano-sized materials for environmental application: 1) Pd catalysts for wastewater treatment. The new ferromagnetic nano-sized Pd catalysts have proved effective for selective dechlorination of industrial wastewater. Extraction by [...]

Aided Transport of Nano-Iron in Clay Soils Using Direct Electric Field

Hannum L., Pamukcu S., Lehigh University, US

The influence of direct current electric fields on the possible electrokinetic delivery of a nano-iron slurry in clay for the purpose of fast and effective remediation of soil contaminants has been tested. Nano-iron can be [...]

Smog Analysis in Urban Areas Using ASTER Data and Its Analysis of Variance with In-Situ Sensors Data

Roy P., Brumfield J.O., Vaseashta A., Graduate program in Physical Sciences, US

This paper describes an approach to assess atmospheric pollutant in the troposphere and their spectral characteristic signatures by using high-spectral and spatial resolution ASTER data and its analysis of variance with in-situ data obtained using [...]

Forensic Environmental Analysis of Nanotechnology Regulation

Scher C.A., Caputo D.L., Quest Consulting, Inc., US

Some considerable effort has recently been displayed by manufacturers, researchers, regulatory bodies, professional organizations, NGOs, and other interested parties addressing how nano-particles and their manufacture should be environmentally regulated. The term environment here is used [...]

An investigation of natural nanoparticles for cleaning applications

Nero M., Tran B., Naturell Clean, Inc., US

Bioremediant cleaning products are investigated for every day use by consumers in their homes. Nano-components such as biosurfactants, enzymes, metaloenzymes, and chelating agents are derived from Sea Kelp and are the result of naturally occurring [...]

Are Emerging Applications of Carbon Nanotubes Safe?

Sharma R., Shetty K., Liang R., Chen C-J., Florida State University, US

Carbon nanotubes are emerging as potential tools in drug delivery nanocarriers to target specific cell types and carbon cages filled with metal molecules may improve MRI microimaging. The present paper reviews the current state of [...]

Adsorption/Desorption of Cd by Titanium Dioxide Nanoparticles and Sediment Particles as well as Their Facilitated Bioaccumulation of Cd into Carp

Zhang X., Chen Y., Sun H., Crittenden J.C., Arizona State University, US

There are increasing concerns about the health and environmental impact of nanomaterials. The study of Sun et. al 2006 provided the evidence of facilitated bioaccumulation of As(V) in carp in the presence of titanium dioxide [...]

Detection, Measurement and Toxicology of Semiconductor Nanocrystals in Ceriodapnia dubia

Ingle T., Hannigan R., Buchanan R., Bouldin J., Arkansas State University, US

Engineered nanomaterials differing in size, shape, surface area and composition are used in research, industrial, and consumer applications. Because of their unique structure and size the need exists for toxicological profiles of nanoparticles as a [...]

Methods for the Prediction of Nanoparticle Fate, Transport and Receptor Exposure in an Aqueous Environment

Mackay C.E., Gray M.N., Reinert K., Sellers K., AMEC, US

The development and applications of nanomaterials have presented a unique problem to environmental scientists and risk assessors. Until now, the models and paradigms used to predict the behavior of chemicals in the environment and thereby [...]

Theoretical Study of the Reaction between OH Radicals and Formaldehyde adsorbed on Small Silica Clusters

Iuga C., Vivier-Bunge A., Universidad Autónoma Metropolitana, MX

Heterogeneous reactions of atmospheric gases on aerosol particles may play an important role in atmospheric chemistry. However, the kinetics and mechanisms of adsorption and reaction of atmospheric gases on aerosol surfaces are not well understood. [...]