نتایج جستجو برای: biocompatible materials
تعداد نتایج: 441717 فیلتر نتایج به سال:
context stem cells have the potential to generate a renewable source of cells for regenerative medicine due to their ability to self-renew and differentiate to various functional cell types of the adult organism. the extracellular microenvironment plays a pivotal role in controlling stem cell fate responses. therefore, identification of appropriate environmental stimuli that supports cellular p...
We present a method to produce micropatterns of cells on tissue culture substrates. A network of deep elastomeric microchannels defining the desired pattern is sealed onto the surface of interest, and a protein template is created by injecting sub-milliliter quantities of protein solution into the microchannels. Protein adsorbs only on the areas that were exposed to the microflow. After the cha...
a study on biocompatibility of three endodontic sealers: intensity and duration of tissue irritation
introduction: several studies have evaluated the inflammatory reaction triggered by epiphany (eph), a contemporary endodontic sealer. however, they used conventional parameters, which need additional analysis to better understand the reactions induced by this sealer compared to other traditional sealers. methods and materials: the intensity and time span of tissue irritations for three endodont...
BioIntraface®, Inc., located in Riverside, Rhode Island, was formed in February of 2009 to commercialize its biomaterials surface treatment technologies. The platform technologies involve the creation of economical, multifunctional metal oxide and polymer materials and coatings to control the bioactivity and antimicrobial properties of medical devices and implants. Biointraface® has continued o...
An aqueous sol-gel route has been developed for electrochemically controlled deposition onto micro and nanofabricated electrodes. TEOS and MeTEOS were hydrolyzed under acidic conditions, and alcohol products were removed by distillation. The resulting clear sol has a hydrolysis ratio between 40 and 45. Following hydrolysis, pH was raised to 5.0 with addition of potassium hydroxide. At room temp...
Quantum dots (QDs) are nanometer-sized semiconductor particles with tunable fluorescent optical property that can be adjusted by their chemical composition, size, or shape. In the past 10 years, they have been demonstrated as a powerful fluorescence tool for biological and biomedical applications, such as diagnostics, biosensing and biolabeling. QDs with high fluorescence quantum yield and opti...
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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