Surface chemistry of biodegradable polymers for drug delivery systems

Article Abstract:

The role of surface science in the surface reactivity to contribute to the understanding of biodegradation kinetics and controlled drug release mechanisms for some important biological polymers such as poly(glycolic acid) and poly(lactic acid) is reviewed. Result not only showed a fundamental understanding of hydrolytic surface degradation kinetics as a model for the drug delivery systems but also toward the design and formulation into new devices.

Plastics Material and Resin Manufacturing, New York, Plastics materials and resins, Degradable Plastics, Plastics, Structure, Chemical properties, Biodegradable plastics, Secondary ion mass spectrometry

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Surface chemistry of prototypical bulk II-VI and III-V semiconductors and implications for chemical sensing

Article Abstract:

Single-crystal semiconductors used as chemical sensors possess chemical, electrical, and optical coupling properties to serve as binding platforms for gaseous and solution analytes. This review discusses characterization of adsorbate-coated semiconductor surfaces and their influence on the semiconductor's physicochemical and electrical properties leading to the final signal transduction.

Statistical Data Included, Ligand binding (Biochemistry), Semiconductors, Photoelectron spectroscopy, Signal detection (Electronics)

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Resistive-pulse sensing-from microbes to molecules

Article Abstract:

Resistive-pulse sensing comprises a variety of chemical sensing strategies with a unifying feature of signal detection via an occluded aperture through which the analyte species passes its signal. The review discusses sensing devices made of different biological channel systems and protein based and synthetic nanotubules.

Ion exchange membranes, Sensory receptors, Ion channels, Bioelectrochemistry, Ion-permeable membranes, Pulse techniques (Electronics)

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