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Author: Justin Gorham

Displaying records 1 to 10 of 17 records.
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1. Multi-method analysis of multiwall carbon nanotube polymer nanocomposite samples after photodegradation
Published: 6/16/2014
Authors: Elijah J Petersen, Thomas Fung Lam, Justin M Gorham, Keana C K Scott, Christian John Long, Renu Sharma, Li Piin Sung, James Alexander Liddle, Tinh Nguyen
Abstract: Nanomaterials can be used as nanofillers to enhance the properties of polymeric materials. However, the effect of weathering on nanocomposites and the potential for nanomaterial release is not yet well understood. Multiple analytical methods are ne ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915812

2. Thermochromic Phase Transitions in VO2-based Thin Films for Energy-Saving Applications
Published: 5/14/2014
Authors: Sara Cordero Barron, Justin M Gorham, Martin L Green
Abstract: The thermochromic transition in vanadium dioxide has potential application as a smart energy-saving window coating, but the temperature of the transition must be depressed from 68°C to Earth ambient temperatures by the incorporation of transition met ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915450

3. 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

4. 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

5. Highly Stable Positively Charged Dendron-Encapsulated Gold Nanoparticles
Published: 3/13/2014
Authors: Tae Joon Cho, Robert I. MacCuspie, Julien C. Gigault, Justin M Gorham, John T Elliott, Vincent A Hackley
Abstract: We report the development of a novel cationic dendron (TAG1-PCD) and a positively charged gold nanoparticle-dendron conjugate (PCD-AuNP). TAG1-PCD was designed by considering the reactivity, hydrophilicity, and cationic nature that is required to yie ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=914562

6. Controlled Formation and Characterization of Dithiothreitol-Conjugated Gold Nanoparticle Clusters
Published: 3/5/2014
Authors: De-Hao D. Tsai, Tae Joon Cho, Frank W DelRio, Justin M Gorham, Jiwen Zheng, Jiaojie Tan, Michael Russel Zachariah, Vincent A Hackley
Abstract: We report a systematic study of the controlled formation of discrete-size gold nanoparticle clusters (GNCs) by interaction with the reducing agent dithiothreitol (DTT). Asymmetric-flow field flow fractionation and electrospray differential mobility a ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915014

7. Role of salt on adhesion of an epoxy/aluminium (oxide) interface in aqueous environments
Published: 2/16/2014
Authors: Christopher C White, Kar T. Tan, Donald Lee Hunston, Justin M Gorham, Aaron M Forster, Vogt D Bryan
Abstract: The durability of adhesive joints in hostile environments is a major area of concern in structural adhesive bonding. Therefore, understanding the mechanics and mechanisms of degradation of adhesive joints is a key factor for more extensive use in fut ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915129

8. 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

9. 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

10. 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



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