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Topic Area: Nanomaterials
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Displaying records 91 to 100 of 154 records.
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91. Modeling and Experimental Study of Steric Inversion in Field-Flow Fractionation (FFF)
Topic: Nanomaterials
Published: Date unknown
Authors: Frederick R Phelan Jr, Barry J. Bauer
Abstract: Modeling of the separation of spherical particles in field-flow fractionation under conditions spanning the normal to steric transition is studied and is compared to experimental results. The separation process is simulated using a Brownian dynamics ...

92. Modification of PET surfaces with self-assembled monolayers of organosilane precursors
Topic: Nanomaterials
Published: 5/13/2009
Authors: Daniel A Fischer, Ali Ozcam, Kirill Effimenko, Cherno Jaye, Richard Spontak, Jan Genzer
Abstract: We report on a facile, robust and rapid method by which poly(ethylene terephthalate) (PET) surfaces can be chemically modified while avoiding chemical degradation. Specifically, we demonstrate that brief exposure of PET surfaces to ultraviolet/ozone ...

93. Molecular-Crowding-Induced Clustering of DNA-Wrapped Carbon Nanotubes for Facile Length Fractionation
Topic: Nanomaterials
Published: 9/6/2011
Authors: Constantine Y. Khripin, Nicholas A. Arnold-Medabalimi, Ming Zheng
Abstract: Emerging applications require single-wall carbon nanotubes (SWCNTs) of welldefined length. Yet the use of length-defined SWCNTs is limited, in part due to the lack of an easily accessible materials preparation method. Here, we present a new strateg ...

94. Multiscale Green's Function Modeling of Defects in a Semi-Infinite Silicon Substrate
Topic: Nanomaterials
Published: 3/3/2005
Authors: B. Yang, Vinod K Tewary
Abstract: We have developed a Green's function (GF) based multiscale modeling of defects in a semi-infinite Si-substrate. Point defects and substrate surface (i.e., extended defect) at two different scales are modeled in a unified manner. Behaviors of the poin ...

95. Multiscale Modeling of Germanium Quantum Dots in Silicon
Topic: Nanomaterials
Published: 12/30/2005
Authors: Vinod K Tewary, David Thomas Read
Abstract: A method is described for multiscale modeling of a quantum dot in a semiconductor containing a free surface. The method is based upon the use of the lattice-statics and continuum Green's functions integrated with classical molecular dynamics. It full ...

96. Multiscale Modeling of Lattice Defects in Si-Ge(001) Quantum Wells
Topic: Nanomaterials
Published: 4/9/2008
Authors: B. Yang, Vinod K Tewary
Abstract: A computationally efficient hybrid Green¿s function (GF) technique is developed for multiscale modeling of lattice defects in a trilayer material system that links seamlessly the length scales from lattice (sub-nanometers) to continuum (bulk). The mo ...

97. Multiscale modeling of point defects in strained silicon
Topic: Nanomaterials
Published: 12/31/2007
Authors: Vinod K Tewary, B. Yang
Abstract: A multiscale Green's function method is described for modeling substitutional point defects and vacancies in strained silicon. The model seamlessly links the length scales from atomistic to macro. The model accounts for the discrete lattice effects, ...

98. Nano-Apatitic Composite Scaffolds for Stem Cell Delivery and Bone Tissue Engineering
Topic: Nanomaterials
Published: 4/15/2012
Authors: Hockin H. K. Xu, Carl George Simon Jr
Abstract: The need for bone defect repair and regeneration arises from trauma, disease, congenital deformity, and tumor resection. Bone fracture occurs to seven million people each year in the United States, and musculoskeletal conditions cost $215 billion ann ...

99. Nanoimprint Lithography and the Role of Viscoelasticity in the Generation of Residual Stress in Model Polystyrene Patterns
Topic: Nanomaterials
Published: 6/10/2008
Authors: Yifu Ding, Hyun W. Ro, Jing N. Zhou, Brian C. Okerberg, Jack F Douglas, Alamgir Karim, Christopher L Soles
Abstract: Understanding polymer deformation during the nanoimprinting process is key to achieve robust polymer nanostructures. Information regarding the process can be extracted from monitoring the decay of the imprinted polymer patterns during thermal anneal ...

100. Nanoparticle assembly, DNA provides control
Topic: Nanomaterials
Published: 5/1/2009
Authors: Vivek M Prabhu, Steven D Hudson
Abstract: No abstract this is a Nature Materials News and Views (less than 800 word) article.

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