نتایج جستجو برای: biocompatibility testing
تعداد نتایج: 346246 فیلتر نتایج به سال:
PURPOSE To further improve in vitro models of the cornea, this study focused on the creation of a three-dimensional, stratified, curved epithelium; and the subsequent characterization and evaluation of its suitability as a model for biocompatibility testing. METHODS Immortalized human corneal epithelial cells were grown to confluency on curved cellulose filters for seven days, and were then d...
It is generally accepted that unreliable in vivo performance of implantable glucose sensors originates, in large part, from tissue reactions to the implanted sensor, including foreign body reactions (i.e., inflammation, fibrosis, and vessel regression). Development of glucose sensor coatings with increased biocompatibility would contribute to the development of a reliable long-term glucose sens...
AIM To evaluate the biocompatibility of mineral trioxide aggregate and accelerated Portland cement and their eluants by assessing cell metabolic function and proliferation. METHODOLOGY The chemical constitution of grey and white Portland cement, grey and white mineral trioxide aggregate (MTA) and accelerated Portland cement produced by excluding gypsum from the manufacturing process (Aalborg ...
Stent implantation represents a major step forward since the introduction of coronary angioplasty. As indications continue to expand, better understanding of the early and late biocompatibility issues appears critical. Persisting challenges to the use of intracoronary stents include the prevention of early thrombus formation and late neointima development. Different metals and designs have been...
The effect of grain refinement of commercial purity titanium by equal channel angular pressing (ECAP) on its mechanical performance and bone tissue regeneration is reported. In vivo studies conducted on New Zealand white rabbits did not show an enhancement of biocompatibility of ECAP-modified titanium found earlier by in vitro testing. However, the observed combination of outstanding mechanical...
Citation: Uzer B, Gumus B, Toker SM, Sahbazoglu D, Saher D, et al. (2016) A Critical Approach to the Biocompatibility Testing of Niti Orthodontic Archwires. Int J Metall Met Phys 1:003 Copyright: © 2016 Uzer B, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any mediu...
At the heart of these changes is a strong emphasis on the need for ensuring biocompatibility. This heightened awareness of the safety of medical devices has taken on an international character, in large part because of the convergence of FDA regulations and International Organization for Standardization (ISO) standards.1,2As international requirements for the biological evaluation of materials ...
Recent development of flexible/stretchable integrated electronic sensors and stimulation systems has the potential to establish an important paradigm for implantable electronic devices, where shapes and mechanical properties are matched to those of biological tissues and organs. Demonstrations of tissue and immune biocompatibility are fundamental requirements for application of such kinds of el...
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