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Topic Area: Nanomaterials

Displaying records 41 to 50 of 127 records.
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41. Size Measurement of Nanoparticles using Atomic Force Microscopy
Topic: Nanomaterials
Published: 1/1/2011
Authors: Jaroslaw Grobelny, Frank W DelRio, Pradeep Narayanan Namboodiri, Doo-In Kim, Vincent A Hackley, Robert Francis Cook
Abstract: This chapter outlines procedures for sample preparation and the determination of nanoparticle size using atomic force microscopy (AFM). To start, procedures for dispersing gold nanoparticles on various surfaces such that they are suitable for imagin ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=854151

42. Combinatorial Screening of Osteoblast Response to 3D Calcium Phosphate/Poly(e-caprolactone) Scaffolds Using Gradients and Arrays
Topic: Nanomaterials
Published: 12/31/2010
Authors: Carl GEORGE Simon Jr, Kaushik Chatterjee, Laurence Chung Lung Chow, Limin Sun, Marian F Young
Abstract: There is a need to improve rapid methods for screening cell-biomaterial interactions. Current methods employ a flat 2D format even though 3D scaffolds are more representative of the tissue environment in vivo and cells are responsive to topological ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906746

43. Instabilities as a Measurement Tool for Soft Materials
Topic: Nanomaterials
Published: 11/2/2010
Authors: John A. (John A) Howarter, Christopher M Stafford
Abstract: Mechanical instabilities such as wrinkles, creases, and folds have long been viewed as a source of frustration for engineers and often a point of curiosity among scientists. Scientists aspire to understand the underlying physics behind the formation ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905663

44. Investigation of Thermally Responsive Block Copolymer Thin Film Morphologies Using Surface Gradients
Topic: Nanomaterials
Published: 10/20/2010
Authors: Jennifer Y. Kelly, Julie N. L. Albert, John A. (John A) Howarter, Shuhui Kang, Christopher M Stafford, Thomas H Epps, Michael J Fasolka
Abstract: We report the use of a gradient library approach to characterize the structure and behavior of thin films of a thermally-responsive block copolymer (BCP), poly(styrene-b-tert-butyl acrylate), that exhibits chemical deprotection and morphological chan ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=906129

45. Phonon dephasing and population decay dynamics of the G-band of semiconducting single-wall carbon nanotubes
Topic: Nanomaterials
Published: 10/19/2010
Authors: Young Jong Lee, Sapun Parekh, Jeffrey A Fagan, Marcus T Cicerone
Abstract: The dephasing and population decay dynamics of optical phonons are studied for semiconducting single-wall carbon nanotubes (SWCNTs) using broadband time-resolved coherent anti-Stokes Raman scattering (TR-CARS) and time-resolved incoherent anti-Stokes ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905809

46. Nanoparticle Formation and Characterization in Continuous Flow Microfluidic Systems
Topic: Nanomaterials
Published: 10/13/2010
Authors: Samuel M Stavis, Michael Gaitan
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907207

47. Predicting Microstructure Development During Casting of Drug Eluting Coatings
Topic: Nanomaterials
Published: 9/19/2010
Authors: David M. Saylor, Jonathan E Guyer, Daniel Wheeler, James A Warren
Abstract: We have devised a novel diffuse interface formulation to model the development of chem- ical and physical inhomogeneities, i.e. microstructure, during the process of casting drug eluting coatings. These inhomogeneities, which depend on the ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905206

48. A spray drying system for synthesis of rare-earth doped cerium oxide nanoparticles
Topic: Nanomaterials
Published: 8/10/2010
Author: Renu Sharma
Abstract: We have constructed a spray-dryer to synthesize doped ceria nanoparticles. This system was employed to synthesize mixed oxide nanoparticles of praseodymium doped (3%, 10% and 20mol %) ceria. X-ray Diffraction (XRD) confirmed the fluorite-like cubic ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905328

49. Surface Energy/Chemistry Gradients for Block Copolymer Thin Film Studies
Topic: Nanomaterials
Published: 8/2/2010
Authors: Julie N. L. Albert, Michael J. Baney, Christopher M Stafford, Jennifer Y. Kelly, Thomas H Epps
Abstract: Development of self-assembling block copolymer materials for emerging nanotechnologies requires an understanding of how surface energy and chemistry affect thin film phase behavior. Gradient methods provide an effective route to explore the role of ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905351

50. Quartz crystal microbalance for in-situ monitoring of laser cleaning of carbon nanotubes
Topic: Nanomaterials
Published: 8/1/2010
Authors: Katie Hurst, Abram Van Der Geest, Mark T. Lusk, Elisabeth Mansfield, John H Lehman
Abstract: Photochemical changes of single-walled carbon nanotubes (SWCNTs), graphite and amorphous carbon have been investigated with a quartz crystal microbalance (QCM). The method of in-situ measurements reduces our uncertainty that is attributable to enviro ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903111