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- W1672651323 abstract "Therapeutic coatings on medical devices such as catheters, guide wires and stents improve biocompatibility by favorably altering the chemical nature of the device/tissue or device/blood interface. Such coatings often minimize tissue damage (reduce friction), decrease chances for blood clot formation (prevent platelet adsorption), and improve the healing response (deliver drugs). Confocal Raman microscopy provides valuable information about biomedical coatings by, for example, facilitating the measurement of the thickness and swelling of friction-reducing hydrogel coatings on catheters, and by determining the distribution of drug within polymer-based a drug eluting coatings on stents. This chapter explores the application of Raman microscopy to the imaging of thin coatings of cross-linked poly(vinyl pyrrolidone) gels, parylene films, mixtures of dexamethasone with various polymethacrylates, and mixtures of rapamycin with hydrolysable (biodegradable) poly(lactide-co-glycolide) polymers. Raman microscopy measures the thickness and swelling of coatings, reveals the degree of mixing of drug and polymer, senses the hydrolysis of biodegradable polymers, and determines the polymorphic forms of drug present within thin therapeutic coatings on medical devices." @default.
- W1672651323 created "2016-06-24" @default.
- W1672651323 creator A5054127473 @default.
- W1672651323 date "2010-01-01" @default.
- W1672651323 modified "2023-09-25" @default.
- W1672651323 title "Characterization of Therapeutic Coatings on Medical Devices" @default.
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- W1672651323 doi "https://doi.org/10.1007/978-3-642-12522-5_9" @default.
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