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You searched on: Author: tinh nguyen

Displaying records 31 to 40 of 118 records.
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31. Probing Dynamic Fluorescence Properties of Single and Clustered Quantum Dots Towards Quantitative Biomedical Imaging of Cells
Published: 10/28/2009
Authors: Hyeong Gon Kang, Fuyuki Tokumasu, Matthew Lawrence Clarke, Zhenping Zhou, Jianyong Tang, Tinh Nguyen, Jeeseong Hwang
Abstract: We present results on dynamical fluorescence properties of bioconjugated nanocrystals or quantum dots (QDs) in different chemical and physical environments. A variety of QD samples were prepared and compared: isolated individual QDs, QDs aggregated ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902907

32. Multimodal, Nanoscale, Hyperspectral Imaging Demonstrated on Heterostructures of Quantum Dots and DNA-Wrapped Single-Wall Carbon Nanotubes
Published: 10/21/2009
Authors: Hyeong Gon Kang, Matthew Lawrence Clarke, Jianyong Tang, John Taylor Woodward IV, Shin G. Chou, Zhenping Zhou, Angela R Hight Walker, Tinh Nguyen, Jeeseong Hwang
Abstract: A multimodality imaging technique integrating atomic force, polarized Raman, and fluorescence lifetime microscopy and a 2D autocorrelation image analysis is applied to study the properties of a mesoscopic heterostucture of nanoscale materials. This ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902938

33. A Novel Method to Covalently Functionalize Carbon Nanotubes with Isocyanates
Published: 9/30/2009
Authors: Tinh Nguyen, Aline Granier, Kristen L. Steffens, Hajin Lee, Naomi Eidelman, Jonathan W. Martin
Abstract: We have developed a novel method to covalently functionalize carbon nanotubes (CNTs) that carry free isocyanate (N=C=O) groups. NCO-functionalized CNTs (NCO-fCNTs) are very desirable, because the NCO group is highly reactive with hydrogen-active grou ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903766

34. Studying Long-term Performance of a Nano-ZnO filled Waterborne Polyurethane Coating using Spectroscopies and Microscopies
Published: 9/9/2009
Authors: Xiaohong Gu, Dongmei Zhe, Stephanie S Watson, Guodong Chen, Minhua Zhao, Paul E Stutzman, Deborah L Stanley, Tinh Nguyen, Joannie W Chin, Jonathan W. Martin
Abstract: Although inorganic UV absorbers such as zinc oxide (ZnO) and cerium oxide (CeO2) exhibit numerous advantages compared to organic UV absorbers, the mechanisms of how these nanoparticles affect the long-term performance of polymeric coatings are less t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903215

35. Degradation and Nanofiller Release of Polymer Nanocomposites Exposed to UV
Published: 7/15/2009
Authors: Tinh Nguyen, Bastien T. Pellegrin, Alexander J. Shapiro, Xiaohong Gu, Joannie W Chin
Abstract: Nanofillers are increasingly used to enhance multifunctional properties of polymers. However, recent research suggests that nanomaterials may have a negative impact on the environmental health and safety. Since polymers are susceptible to photodegrad ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902990

36. Long-Term Performance of Nano-Filled Polymeric Materials: Effect of ZnO Nanoparticles on Photodegradation of a Waterborne Polyurethane Coating
Published: 7/8/2009
Authors: Xiaohong Gu, Dongmei Zhe, Minhua Zhao, Guodong Chen, Nhieu Ly, Paul E Stutzman, Li Piin Sung, Tinh Nguyen, Joannie W Chin
Abstract: Polymers are widely used as exterior coatings in buildings, bridges, aircrafts and automobiles for both protection and aesthetic purposes. However, the service life of the applied coatings is limited due to the photodegradation of polymers induced by ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902293

37. Network Aggregation of CNTs at the Surface of Epoxy/MWCNT Composite Exposed to UV Radiation
Published: 3/18/2009
Authors: Tinh Nguyen, Bastien T. Pellegrin, Alexander J. Shapiro, Xiaohong Gu, Joannie W Chin
Abstract: Carbon nanotubes (CNTs) are increasingly incorporated in polymers to enhance their mechanical and electrical properties. However, organic polymers are prone to degrade when exposed to UV radiation. Therefore, CNTs in a polymer nanocomposite could ev ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=902039

38. Melting and Chemical Behaviors of Isothermally-Crystallized Gamma-Irradiated Syndiotactic Polystyrene
Published: 2/18/2009
Authors: Tinh Nguyen, Sanboh Lee, Kuo L. Chien
Abstract: Melting and chemical behaviors of isothermally-crystallized gamma-irradiated sPS have been investigated using differential scanning calorimetry, FTIR, and X-ray diffraction techniques. Amorphous sPS samples were subjected to gamma radiation in vacuum ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901195

39. Adhesion Loss and Corrosion-induced Delamination of Fusion-Bonded Epoxy Coated Steel in Alkaline Electrolytes
Published: 1/28/2009
Authors: Tinh Nguyen, Jonathan W. Martin
Abstract: Fusion-bonded epoxy is used extensively for increasing the service life of steel-reinforced concrete structures. However, field observations have reported premature corrosion of fusion bonded epoxy-coated reinforcing bars used in marine concrete envi ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=901194

40. Linking Accelerated Laboratory Test with Outdoor Performance Results for a Model Epoxy Coating System
Published: 10/8/2008
Authors: Xiaohong Gu, Deborah L Stanley, Walter Eric Byrd, Brian Dickens, Iliana Vaca-Trigo, William Meeker, Tinh Nguyen, Jonathan W. Martin
Abstract: Laboratory and field exposure results have been successfully linked for a model epoxy coating system. The mathematical model used in making this linkage only assumed that the total effective dosage, additivity law, and reciprocity laws were valid. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=900107



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