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Search Publications by: Sheng Lin-Gibson (Fed)

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Displaying 126 - 150 of 234

Effects of filler type and content on mechanical properties of photopolymerizable composites determined using a two-dimensional gradient platform

February 5, 2009
Author(s)
Sheng Lin-Gibson, Li Piin Sung, Haiqing Hu, Aaron M. Forster, Nancy J. Lin
Photopolymerizable dental composites have complex processing conditions and multi-component formulations that affect the final properties. Combinatorial screening is a useful approach for evaluating multiple properties of the composites. A single test

Beta-Sheet Formation and RGD-Presentation Effects on Osteoblast Differentiation

November 15, 2008
Author(s)
Carl G. Simon Jr., Matthew Becker, Sheng Lin-Gibson, Kristen E. Roskov, David L. Kaplan, Abby W. Morgan
This report highlights our recent investigation into -sheet formation and RGD epitope presentation on the surface of blended silk films.1 Surface characterization of biomaterials for tissue engineering applications is of great importance to understand how

Monitoring Alignment of Osteoblast Cells Directed by Gradient Nanopatterns

April 6, 2008
Author(s)
Jirun Sun, Yifu Ding, Nancy J. Lin, Hyun Wook Ro, Christopher L. Soles, Sheng Lin-Gibson
We investigated the behavior of pre-osteoblasts cultured on polystyrene and photopolymerized ethoxylated bisphenol-A dimethacrylate gradient patterns. Gradient patterns varying in height from several hundred to 0 nm were prepared using nanoimprinting

X-Ray Imaging Optimization of 3D Tissue Engineering Scaffolds via Combinatorial Fabrication Methods

April 1, 2008
Author(s)
Yanyin Yang, Shauna M. Dorsey, Matthew Becker, Sheng Lin-Gibson, Gary E. Schumacher, Glenn M. Flaim, J Kohn, Carl G. Simon Jr.
We have developed a combinatorial method for determining optimum tissue scaffold composition for imaging by X-ray techniques. X-ray radiography and microcomputed tomography enable non-invasive imaging of implanted materials in vivo and in vitro

Non-Brownian Microrheology of a Fluid Gel Interface

February 20, 2008
Author(s)
Erik K. Hobbie, Sheng Lin-Gibson, S K. Kumar
We use stroboscopic video microscopy to study the motion of a sheared fluid-gel interface. External mechanical noise plays a role analogous to temperature, but with a low-frequency breakdown of linear response consistent with an underlying instability. We

Mapping Cell Distribution in Amorphous Scaffolds using Confocal Microscopy

August 19, 2007
Author(s)
Jirun Sun, Nancy Lin, Marcus T. Cicerone, Sheng Lin-Gibson
One common method for probing cell-material interactions is direct visualization via confocal laser scanning microscopy, a technique widely used for studying biological systems. However, confocal microscopy has limited depth penetration for imaging cells

Relationship between dispersion metric and properties of PMMA/SWNT nanocomposites

June 13, 2007
Author(s)
Takashi Kashiwagi, Jeffrey Fagan, Jack F. Douglas, Kazuya Yamamoto, N. Alan Heckert, Stefan D. Leigh, Jan Obrzut, Fangming Du, Minfang Mu, Sheng Lin-Gibson, K Winey, R Haggenmueller
Particle spatial dispersion is a crucial characteristic of polymer composite materials and this property is recognized as especially important innanocomposite materials due to the general tendency of nanoparticles to aggregate under processing conditions