Hemocompatible polymer thin films fabricated by Electrostatic Self-Assembly (ESA)

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dc.contributor.authorCheung, Yeuk Kiten
dc.contributor.committeechairClaus, Richard O.en
dc.contributor.committeememberCorcoran, Sean G.en
dc.contributor.committeememberRobertson, John L.en
dc.contributor.departmentMaterials Science and Engineeringen
dc.date.accessioned2014-03-14T20:32:12Zen
dc.date.adate2005-03-16en
dc.date.available2014-03-14T20:32:12Zen
dc.date.issued2004-12-14en
dc.date.rdate2012-06-22en
dc.date.sdate2005-02-26en
dc.description.abstractStent is one of the coronary angioplasty techniques that expands the narrowed coronary arteries due to the accumulation of fat, cholesterol and other substances in the lumen of the arteries. The major complication of stent is restenosis. Current development of drug-eluting stents shows successfully reduce the occurrence of restenosis. Other than using drugs, electrostatic self assembled (ESAd) thin films may be the potential candidates to prevent restenosis. ESA is a process to fabricate thin films bases on the electrostatic attraction between two oppositely charges. We used this technique to fabricate four PVP films and four PEI films. All films were examined by XPS and AFM. XPS data showed our coatings were successfully fabricated on substrates. AFM images revealed PVP coating was uniform, but PEI coatings had different morphologies due to diffusion and pH during the process. Three preliminary hemocompatibility testes were performed to evaluate the hemocompatibility of the coatings. Platelet adhesion study showed the thin films inhibited platelet adhesion. All thin films were able to inhibit coagulation and were less cytotoxic. The studies suggested the ESA films were potentially hemocompatible.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-02262005-143358en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02262005-143358/en
dc.identifier.urihttp://hdl.handle.net/10919/31357en
dc.publisherVirginia Techen
dc.relation.haspartKitMasterThesisVt.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcytotoxicityen
dc.subjectplatelet adhesionen
dc.subjectcoagulationen
dc.subjecthemocompatibleen
dc.subjectstenten
dc.subjectelectrostatic self-assembly (ESA)en
dc.titleHemocompatible polymer thin films fabricated by Electrostatic Self-Assembly (ESA)en
dc.typeThesisen
thesis.degree.disciplineMaterials Science and Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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