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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Controlled bioactive delivery using degradable electroactive polymers

Ashton, M.D., Cooper, Patricia A., Municoy, S., Desimone, M.F., Cheneler, D., Shnyder, Steven, Hardy, J.G. 18 July 2022 (has links)
Yes / Biomaterials capable of precisely controlling the delivery of agrochemicals/biologics/drugs/fragrances have significant markets in the agriscience/healthcare industries. Here, we report the development of degradable electroactive polymers and their application for the controlled delivery of a clinically relevant drug (the anti-inflammatory dexamethasone phosphate, DMP). Electroactive copolymers composed of blocks of polycaprolactone (PCL) and naturally occurring electroactive pyrrole oligomers (e.g., bilirubin, biliverdin, and hemin) were prepared and solution-processed to produce films (optionally doped with DMP). A combination of in silico/in vitro/in vivo studies demonstrated the cytocompatibility of the polymers. The release of DMP in response to the application of an electrical stimulus was observed to be enhanced by ca. 10-30% relative to the passive release from nonstimulated samples in vitro. Such stimuli-responsive biomaterials have the potential for integration devices capable of delivering a variety of molecules for technical/medical applications. / This research was funded by a variety of sources, and the authors acknowledge the UK Engineering and Physical Sciences Research Council (EPSRC) National Productivity Investment Fund (NPIF) for a PhD Studentship for M.D.A. (Grant references: EP/R512564/1, 2065445), in support of the EPSRC First Grant for J.G.H. (Grant reference: EP/ R003823/1); the UK Royal Society for support of J.G.H. (Grant reference: RG160449); and the UK Royal Society and CONICET (Argentina) for supporting M.D.A., S.M., M.F.D., and J.G.H. (Grant Reference: A103355).

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