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You searched on: Topic Area: Nanomaterials

Displaying records 51 to 60 of 71 records.
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51. Directed 2D-to-3D pattern transfer method for controlled fabrication of topologically complex three- dimensional nanostructures in silicon
Topic: Nanomaterials
Published: 2/1/2011
Authors: Konrad Rykaczewski, Owen J. Hildreth, Ching P. Wong, Andrei G. Fedorov, John Henry j Scott
Abstract: A process allowing for control over the 3D motion of catalyst nanostructures during Metal-assisted Chemical Etching by their local pinning prior to etching is developed. Topologically complex 3D structures that are partially located within the et ...

52. 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 ...

53. 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. 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 ...

54. 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 ...

55. 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 ...

56. Mechanical properties of one-dimensional nanostructures
Topic: Nanomaterials
Published: 5/23/2010
Authors: Gheorghe Stan, Robert Francis Cook
Abstract: The elastic mechanical properties of one-dimensional nanostructures are considered, with an emphasis on the use of contact-resonance atomic force microscopy methods to determine elastic moduli. Various methods used to determine elastic moduli of one- ...

57. Core-shell composite of SiCN and multiwalled carbon nanotubes from Toluene dispersion
Topic: Nanomaterials
Published: 5/21/2010
Authors: John H Lehman, Katherine E. Hurst, Gurpreet Singh, Elisabeth Mansfield, John D. Perkins, Christopher L. Cromer
Abstract: Carbon nanotubes are known to have high thermal conductivity, and in bulk form, a topology that could constitute the matrix of an inhomogeneous solid. Among the promised applications of carbon nanotubes is a composite material that is practical for t ...

58. Dynamic light scattering investigations of nanoparticle aggregation following a light-induced pH jump
Topic: Nanomaterials
Published: 5/19/2010
Authors: Ryan Murphy, Denis Pristinski, Kalman D Migler, Jack F Douglas, Vivek M Prabhu
Abstract: We use dynamic light scattering to characterize the kinetics of nanoparticle aggregation. The aggregation process was conveniently initiated in photoacid generator (PAG) solutions where changes in the pH of the solution can be controlled by exposure ...

59. Excimer laser-based purification of single-walled carbon nanotubes
Topic: Nanomaterials
Published: 4/1/2010
Authors: Katie Hurst, Elisabeth Mansfield, Anne Dillon, John H Lehman
Abstract: Bulk purified carbon nanotube (CNT) material is essential for the realization of CNT applications including incorporating them into various composite materials. We have developed a laser-based purification technique for bulk single-walled carbon nano ...

60. Wrinkling and Strain Softening in Single-Wall Carbon Nanotube Membranes
Topic: Nanomaterials
Published: 3/26/2010
Authors: Erik K. Hobbie, Daneesh Olivia Simien, Jeffrey A Fagan, JiYeon Huh, Jun Y. Chung, Steven D Hudson, Jan Obrzut, Jack F Douglas, Christopher M Stafford
Abstract: Ultrathin layers of single-wall carbon nanotubes (SWCNTs) show considerable promise for applications ranging from fuel-cell membranes and biochemical sensors to bioactive films and transparent electrodes. The high conductivity and extreme anisotropy ...

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