SUPERCRITICAL CARBON DIOXIDE-PROCESSED RESORBABLE POLYMERNANOCOMPOSITES FOR BONE GRAFT SUBSTITUTE APPLICATIONSbyKEVIN C. BAKERAugust 2011Advisor: Rangaramanujam M. Kannan, Ph.D.Major: Biomedical EngineeringDegree: Doctor of PhilosophyNumerous clinical situations necessitate the use of bone graft materials to enhance boneformation. While autologous and all...

Remarkable advances in the recent development of porous compounds based upon coordination polymers have paved the way toward functional chemistry having potential applications such as gas storage, separation, and catalysis. From the synthetic point of view, the advantage is a designable framework, which can readily be constructed from building blocks, the so-called bottom-up assembly. Compared ...

High levels of iron-nitrogen doped porous carbon materials are obtained from MOF-253 using a step-by-step post-synthetic modification strategy. MOF-253 possessing open 2,2'-bipyridine nitrogen sites not only serves as a precursor but also provides chelate bonding sites for Fe2+. Followed by further impregnation of 1,10-phenanthroline, high surface area porous carbon materials are obtained. For ...

NDT of porous material using conventional methods is difficult due to signal attenuation, low sensitivity, problems due to surface irregularities etc. In this paper the feasibility of using digital holographic interferometry to detect defects in porous materials is investigated and discussed. The basic methodology of digital holographic interferometry for defect detection is presented. Proper e...

This paper presents selected characteristics of the metallic porous materials produced by the sintering of metal powders. The authors focus on materials produced from the iron powder (Fe) of ASC 100.29 and Distaloy SE. ASC 100.29 is formed by atomization and has a characteristic morphology. It consists of spherical particles of different sizes forming agglomerates. Distaloy SE is also based on ...

Edited by Reed M. Izatt. © 2016 John Wiley & Sons, Ltd. Published 2016 by John Wiley & Sons, Ltd. Inorganic zeolites [1], mesoporous silica [2], and porous carbon [3] are useful materials because of their permanent porosity imparted by their architectural stability in the absence of guest molecules. The chemical functionalization and structure control of these classes of porous materials have b...

Porous metallic material has become a kind of typical multifunctional material with the quick development of advanced manufacturing and forming process technologies in past years. At present, it has also been a structural function material with the characteristics of ultra-light weight, high specific strength and rigidity. As a sound absorbing material in noise control engineering, the acoustic...

Using starch as the carbon precursor and different-sized ZnO naoparticles as the hard template, a series of porous carbon materials for electrochemical sensing were prepared. Experiments of scanning electron microscopy, transmission electron microscopy and Nitrogen adsorption-desorption isotherms reveal that the particle size of ZnO has big impacts on the porous morphology and surface area of t...

Keywords: Solar energy Solar fuels Heat and mass transfer Porous media Computed tomography Morphology a b s t r a c t The performance of high-temperature solar reactors incorporating porous ceramic materials that serve as radiative absorbers and chemical reaction sites can be improved significantly by tailoring their pore structure. We investigated the changes in their effective heat and mass t...

To reduce the noise and vibration perturbations, it is beneficial to use the dissipative properties of poroelastic materials. These materials are generally not used alone, but rather inserted in composite mechanical assemblies made of elastic structures, poroelastic materials and air insertions. If these structures are assemblies of layers of materials, they are called multilayer complexes. If ...