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You searched on: Topic Area: Advanced Materials

Displaying records 11 to 20 of 71 records.
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11. Measuring Organelle Shape in 3D in Stem Cells Cultured on Nanofiber Scaffolds
Topic: Advanced Materials
Published: 4/19/2014
Authors: Carl George Simon Jr., Peter Bajcsy, Wojtek J Tutak, Jyotsnendu J. Giri
Abstract: Previous work has demonstrated that culture of osteoprogenitor cells on nanofiber scaffolds can potentiate osteogenic differentiation [1-4]. Culture of cells in nanofiber scaffolds causes changes to cell morphology, suggesting that morphological ...

12. Measuring Stem Cell Dimensionality in Tissue Scaffolds
Topic: Advanced Materials
Published: 4/1/2014
Authors: Carl George Simon Jr., Sapun Parekh, Christopher K. Tison, Girish Kumar, Tanya M. Farooque, Charles H Camp
Abstract: Many 3D scaffold systems have evolved for tissue engineering, drug screening and in vitro tissue models. However, it is not clear which scaffolds provide a 3D cell niche and there is no clear way to measure cell niche dimensionality. Advances in 3D ...

13. Dynamic contact AFM methods for nanomechanical properties
Topic: Advanced Materials
Published: 12/1/2013
Authors: Donna C. Hurley, Jason Philip Killgore
Abstract: This chapter focuses on two atomic force microscopy (AFM) methods for nanomechanical characterization: force modulation microscopy (FMM) and contact resonance (CR) techniques. FMM and CR methods share several common features that distinguish them fro ...

14. Airbrushed Nanofiber Scaffolds Support Bone Marrow Stromal Cell Differentiation
Topic: Advanced Materials
Published: 11/1/2013
Authors: Carl George Simon Jr., Wojtek J Tutak, Sumona Sarkar, Tanya M. Farooque, Jyotsnendu J. Giri, Dongbo Wang, Sheng Lin-Gibson, Joachim Kohn, Durgadas Bolikal
Abstract: Nanofiber scaffolds are effective for tissue engineering since they emulate the fibrous nanostructure of native extracellular matrix (ECM). Although electrospinning has been the most common approach for fabricating nanofiber scaffolds, airbrushi ...

15. Non-rigid and tough calcium phosphate cement scaffold seeded with umbilical cord stem cell for bone repair
Topic: Advanced Materials
Published: 8/1/2013
Authors: Carl George Simon Jr., Hockin H. K. Xu, Michael D Weir, WahWah Thein-Han
Abstract: Human umbilical cord mesenchymal stem cells (hUCMSCs) are a promising alternative to bone marrow MSCs, which require invasive procedures to harvest. The objectives of this study were to develop a novel non-rigid and tough calcium phosphate cement (CP ...

16. Nanoscale Imaging of Plasmonic Hot Spots and Dark Modes with the Photothermal Induced Resonance Technique
Topic: Advanced Materials
Published: 7/10/2013
Authors: Basudev Lahiri, Glenn E Holland, Vladimir A Aksyuk, Andrea Centrone
Abstract: The collective oscillation of conduction electrons, responsible for the LSPRs, enables engineering nanomaterials by tuning their optical response from the visible to THz as a function of nanostructure size, shape and environment. While theoretical ca ...

17. Graphene Epitaxial Growth on SiC(0001) for Resistance Standards
Topic: Advanced Materials
Published: 6/3/2013
Authors: Mariano A. Real, Eric Lass, Fan-Hung H. Liu, Tian T. Shen, George R Jones, Johannes A Soons, David B Newell, Albert Davydov, Randolph E Elmquist
Abstract: A well-controlled technique for high-temperature epitaxial growth on 6H-SiC(0001) substrates is shown to allow development of monolayer graphene that exhibits promise for precise metrological applications. Face-to-face (FTF) and face-to-graphite (FTG ...

18. Gradient Nanofiber Scaffold Libraries for Screening Cell Response to Poly(e-caprolactone)-Calcium Phosphate Composites
Topic: Advanced Materials
Published: 3/1/2013
Authors: Carl George Simon Jr., Limin Sun, Laurence Chung Lung Chow, William Miles, Christopher K. Tison, Kaushik Chatterjee, Marian F Young, Vinoy Thomas, Murugan Ramalingam
Abstract: A 2-spinnerette approach has been developed for fabricating nanofiber scaffold gradients for use as 1) scaffold libraries for screening the effect of nanofiber properties on cell response and 2) templates for generating graded tissue interfaces. Alt ...

19. Structure and Dynamics Studies of Concentrated Micrometer-Sized Colloidal Suspensions
Topic: Advanced Materials
Published: 1/7/2013
Authors: Fan Zhang, Andrew John Allen, Lyle E Levine, Jan Ilavsky, Gabrielle Gibbs Long
Abstract: We present an experimental study of the structural and dynamical properties of concentrated suspensions of a series of different sized polystyrene microspheres dispersed in glycerol for volume fraction concentrations between 10 % and 20 %. The static ...

20. Ultra-Small Angle X-ray Scattering Instrument at the Advanced Photon Source, History, Recent Development, and Current Status
Topic: Advanced Materials
Published: 1/1/2013
Authors: Andrew John Allen, Fan Zhang, Lyle E Levine, Gabrielle Gibbs Long, Jan Ilavsky, Pete R. Jemian
Abstract: The history and development over more than 25 years is presented and discussed of an ultra-small-angle X-ray scattering (USAXS) instrument dedicated to serving a broad range of materials research needs. This history is traced from the instrument‰s o ...

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