Results 21 to 30 of about 220,733 (308)

Synthesis of bio-based thermoplastic polyurethane elastomers containing isosorbide and polycarbonate diol and their biocompatible properties. [PDF]

open access: yes, 2015
A new family of highly elastic polyurethanes (PUs) partially based on renewable isosorbide were prepared by reacting hexamethylene diisocyanate with a various ratios of isosorbide and polycarbonate diol 2000 (PCD) via a one-step bulk condensation ...
Gong, MS, Kang, MS, Knowles, JC, Oh, SY
core   +1 more source

Recyclable Synthesis, Characterization, and Antimicrobial Activity of Chitosan-based Polysaccharide Composite Materials [PDF]

open access: yes, 2013
We have successfully developed a simple and totally recyclable method to synthesize novel, biocompatible, and biodegradable composite materials from cellulose (CEL) and chitosan (CS).
Duri, Simon   +2 more
core   +2 more sources

Comparative study on the properties of a bio-based copolymacrolactone system

open access: yesPolymer Testing, 2022
The evaluation of the properties and characteristics of macromolecular compounds is essential, especially from the point of view of the potential uses of the studied compounds.
Aurica P. Chiriac   +7 more
doaj   +1 more source

Micromorphological Investigations of Intervertebral Disk Degeneration using Electron Microscopy

open access: yesGlobal Spine Journal, 2012
Introduction Intervertebral disk (ID) degeneration can be distinguished by various changes in the tissue structure like delamination and crack formation of the collagenous matrix as well as cellular changes like cell aging and variances in the amount and
A. Friedmann   +4 more
doaj   +1 more source

Paper Based Pressure Sensor for Green Electronics [PDF]

open access: yes, 2017
This work reports a resistive paper-based disposable pressure sensor based on porous 3D conductive cellulose micro-fiber network. The conductivity in microfibers was achieved by subjecting the network to graphene oxide (GO) - poly(3,4 ...
Dahiya, Ravinder   +2 more
core   +1 more source

High-throughput micro-nanostructuring by microdroplet inkjet printing

open access: yesBeilstein Journal of Nanotechnology, 2018
The production of micrometer-sized structures comprised of nanoparticles in defined patterns and densities is highly important in many fields, ranging from nano-optics to biosensor technologies and biomaterials.
Hendrikje R. Neumann   +1 more
doaj   +1 more source

Recent Approaches for the Manufacturing of Polymeric Cranial Prostheses by Incremental Sheet Forming [PDF]

open access: yes, 2017
This paper presents recent research experiences developed with the aim of manufacturing cranial prostheses in polymeric sheet using Incremental Sheet Forming (ISF) technologies.
Bagudanch, Isabel   +7 more
core   +1 more source

Hydrogel-Coated Textile Scaffolds as Three-Dimensional Growth Support for Human Umbilical Vein Endothelial Cells (HUVECs): Possibilities as Coculture System in Liver Tissue Engineering

open access: yesCell Transplantation, 2002
Three-dimensional (3-D) scaffolds offer an exciting possibility to develop cocultures of various cell types. Here we report chitosan–collagen hydrogel-coated fabric scaffolds with defined mesh size and fiber diameter for 3-D culture of human umbilical ...
Makarand V. Risbud   +3 more
doaj   +1 more source

Poultry by-products as source of collagen, nanokeratin and bioapatite for biomedical use

open access: yesRevista Ciência Agronômica, 2021
Xenogeneic sources are attractive for the development of natural and sustainable biomaterials. The objective of this study was to extract and perform the physicochemical and biological characterization of poultry collagen (G1), nanokeratin (G2) and ...
Francisco Fábio Pereira de Souza   +4 more
doaj   +1 more source

Clinical applications of custom-made vaginal cylinders constructed using three-dimensional printing technology. [PDF]

open access: yes, 2016
PurposeThree-dimensional (3D) printing technology allows physicians to rapidly create customized devices for patients. We report our initial clinical experience using this technology to create custom applicators for vaginal brachytherapy.Material and ...
Cunha, Adam   +6 more
core   +3 more sources

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