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Author: Justin Gorham

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1. A Quantitative Study of Nanoparticle Release from Nanocoatings Exposed to UV Radiation
Published: 4/7/2014
Authors: Li Piin Sung, Deborah L Stanley, Justin M Gorham, Savelas A Rabb, Xiaohong Gu, Lee Lijian Yu, Tinh Nguyen
Abstract: Nanoparticles are increasingly used in polymer coatings (i.e., nanocoatings) to improve multiple properties of traditional coatings such as mechanical, electrical, gas barrier, and UV resistance. These high performance nanocoatings are often used in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915497

2. Storage Wars: How citrate capped silver nanoparticle suspensions are affected by not-so-trivial decisions
Published: 3/21/2014
Authors: Justin M Gorham, Anne B Rohlfing, Katrice A Lippa, Robert I. MacCuspie, Amy Hemmati, Richard D Holbrook
Abstract: A critical but often overlooked component of silver nanoparticle (AgNPs) suspensions involves their behavior following short- and long-term storage. The current study investigates the integrity of citrate-capped AgNP suspensions, nominally 20 nm in ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913638

3. Development of a conceptual framework for evaluation of nanomaterials release from nanocomposites: environmental and toxicological implications
Published: 1/2/2014
Authors: Jame Ging, Raul Tejerina-Anton, Girish Ramakrishnan, Mark Nielsen, Kyle Murphy, Justin M Gorham, Tinh Nguyen, Alexander Orlov
Abstract: Despite the fact that nanomaterials are considered potentially hazardous in a freely dispersed form, they are often considered safe when encapsulated into a polymer matrix. However, systematic research to confirm the abovementioned paradigm is lackin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914575

4. Impact of UV Irradiation on the Surface Chemistry and Structure of Multiwall Carbon Nanotube Epoxy Nanocomposites
Published: 12/6/2013
Authors: Elijah J Petersen, Thomas Fung Lam, Justin M Gorham, Keana C k Scott, Christian John Long, Deborah L Stanley, Renu Sharma, James Alexander Liddle, Tinh Nguyen
Abstract: One of the most promising applications of nanomaterials is as nanofillers to enhance the properties of polymeric materials. However, the effect of nanofillers on polymers subject to typical environmental stresses, such as ultraviolet (UV) radiation, ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913865

5. Surface Chemical Transformations of UV irradiated Silica-Epoxy Nanocomposites
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

6. Accuracy and Resolution of Nanoscale Strain Measurement Techniques
Published: 3/26/2013
Authors: William A Osborn, Lawrence H Friedman, Mark D Vaudin, Stephan J Stranick, Michael S. Gaither, Justin M Gorham, Victor Vartanian, Robert Francis Cook
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=913178

7. UV-induced photochemical transformations of citrate capped silver nanoparticle suspensions
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

8. Characterization of Surface Accumulation and Release of Nanosilica During Irradiation of Polymer Nanocomposites with Ultraviolet Light
Published: 8/12/2012
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Savelas A Rabb, Paul E Stutzman, Justin M Gorham, Xiaohong Gu, Lee Lijian Yu, Joannie W Chin
Abstract: Nanofillers are increasingly used for enhancing multiple properties of polymeric materials in many applications. However, polymers are susceptible to photodegradation by solar ultraviolet (UV) radiation Therefore, nanofillers in a polymer nanocompos ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=909878

9. Photo-induced Surface Transformation of Silica Nanocomposites
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

10. Fate of nanoparticles during life cycle of polymer nanocomposites
Published: 7/6/2011
Authors: Tinh Nguyen, Bastien T. Pellegrin, Coralie Bernard, Xiaohong Gu, Justin M Gorham, Paul E Stutzman, Deborah L Stanley, Walter Eric Byrd, John W Hettenhouser, Joannie W Chin
Abstract: Nanoparticles are increasingly used in consumer and structural polymeric products to enhance a variety of properties. Under the influences of environmental factors (e.g., ultraviolet, moisture, temperature) and mechanical actions (e.g., scratching, v ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907488



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