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1. Surface Chemical Transformations of UV irradiated Silica-Epoxy Nanocomposites
Topic: Nanotech/Environment, Health & Safety
Published: 5/15/2013
Authors: Justin M Gorham, Tinh Nguyen, Deborah L Stanley, Coralie Bernard, Richard D Holbrook
Abstract: Silica nanoparticles (SiNPs) incorporated into a polymeric matrix, or silica nanocomposites (SiNCs), are used in a wide variety of commercially available products in numerous natural and artificial environments. Environmental factors, such as light, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913534

2. Aggregation/agglomeration state of carbon nanotubes
Topic: Nanotech/Environment, Health & Safety
Published: 10/12/2012
Authors: Vivek M Prabhu, Toshiya Okazaki, Takeshi Eitoku, Masayoshi Tange, Haruhisa Kato
Abstract: Evaluation of aggregation and agglomeration of carbon nanotube (CNT) solution has been one of the key issues for applications. Here we introduce a simple method based on depolarized dynamic light scattering (DDLS) performed at multiple scattering ang ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=912177

3. UV-induced photochemical transformations of citrate capped silver nanoparticle suspensions
Topic: Nanotech/Environment, Health & Safety
Published: 9/14/2012
Authors: Justin M Gorham, Robert I MacCuspie, Kate L Klein, D. Howard Fairbrother, Richard D Holbrook
Abstract: Due to the increasing use of silver nanoparticles (AgNPs) in consumer products, it is essential to understand how variables, such as light exposure, may change the physical and chemical characteristics of AgNP suspensions. To this end, the effect o ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911250

4. Protective roles of single-wall carbon nanotubes in ultrasonication-induced DNA base damage
Topic: Nanotech/Environment, Health & Safety
Published: 8/27/2012
Authors: Elijah J Petersen, Xiaomin X. Tu, M Miral Dizdar, Ming Zheng, Bryant C Nelson
Abstract: Ultrasonication is a physical process known to generate abundant levels of oxygen-derived species such as hydroxyl radicals, hydrogen atoms, and hydrogen peroxide. Highly reactive hydroxyl radicals can react with DNA to generate strand breaks and a m ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911310

5. Photo-induced Surface Transformation of Silica Nanocomposites
Topic: Nanotech/Environment, Health & Safety
Published: 6/22/2012
Authors: Justin M Gorham, Tinh Nguyen, Coralie Bernard, Deborah L Stanley, Richard D Holbrook
Abstract: The physicochemical, UV-induced surface modifications to silica nanoparticle (SiNP) - epoxy composites have been investigated. The silica nanocomposites (SiNCs) were prepared using a two-part epoxy system with 10 % mass fraction of SiNPs and expose ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910637

6. Uptake and Elimination Behaviors of Polyethyleneimine (PEI)-Coated Multi-Walled Carbon Nanotubes by Eisenia foetida and Daphnia magna
Topic: Nanotech/Environment, Health & Safety
Published: 6/20/2012
Author: Elijah J Petersen
Abstract: Determining the effects of various surface coatings on carbon nanotubes (CNTs) is critical given the numerous expected applications of CNTs and their inevitable release into ecosystems. To explore the potential ecotoxicological effects of CNT surface ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=911108

7. CEINT/NIST PROTOCOL for the PREPARATION OF NANOSCALE TiO2 DISPERSIONS IN AN ENVIRONMENTAL MATRIX FOR ECO-TOXICOLOGICAL ASSESSMENT
Topic: Nanotech/Environment, Health & Safety
Published: 2/2/2012
Authors: Julian S. Taurozzi, Vincent A Hackley, Mark R Wiesner
Abstract: Toxicity and fate assessment are key elements in the evaluation of the environmental, health and safety risks of engineered nanomaterials (ENMs). While significant effort and resources have been devoted to the toxicological evaluation of many ENMs, i ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910395

8. Anisotropic surface-state-mediated RKKY interaction between adatoms
Topic: Nanotech/Environment, Health & Safety
Published: 1/18/2012
Authors: Paul Nathan Patrone, T L Einstein
Abstract: Motivated by recent numerical studies of Ag on Pt(111), we derive a far-field expression for the RKKY interaction mediated by surface states on a (111) FCC surface. The main contribution to the interaction comes from electrons whose Fermi velocity ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909398

9. Does Shape Matter? Bioeffects of Gold Nanomaterials in a Human Skin Cell Model
Topic: Nanotech/Environment, Health & Safety
Published: 1/13/2012
Authors: Nicole M Schaeublin, Laura K Braydich-Stolle, Elizabeth I Maurer, Kyoungweon Park, Robert I MacCuspie, A R M Nabiul Afrooz, Navid B Saleh, R.A. Vaia, Saber Hussain
Abstract: Gold nanomaterials (AuNMs) have distinctive electronic and optical properties, making them ideal candidates for biological, medical, and defense applications. Therefore, it is imperative to evaluate the potential biological impact of AuNMs before em ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909150

10. PREPARATION OF NANOSCALE TiO2 DISPERSIONS IN BIOLOGICAL TEST MEDIA FOR TOXICOLOGICAL ASSESSMENT
Series: OTHER
Topic: Nanotech/Environment, Health & Safety
Published: 10/31/2011
Authors: Julian S. Taurozzi, Vincent A Hackley, Mark R Wiesner
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909844