2026-09-20T15:23:39Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/31207 2023-07-10 col_2142_5131 com_2142_5130

Rogers, John A. Rill, Elliott 2012-05-22T00:35:39Z 2012-05-22T00:35:39Z 2012-05 2012-05-22T00:35:39Z 2012-05 Current magnesium and silk materials used in transient devices limit the design possibilities. Proper material choice will give transient electronics greater functionality and a wider range of applications. Time-dependence of electrical and physical properties due to dissolution was tested for Al, Zn, W, and Fe, alone and in combination with magnesium. PLGA, collagen, gelatin and a gelatin/PVA hydrogel were tested for physical degradation. Aluminum was the best choice for extending the lifetime of magnesium traces, and tungsten had the slowest dissolution rate of any pure materials tested. Slowly degrading metals could enable fully degradable devices with direct contact with external tissue. PLGA and collagen were moderately functional as encapsulation materials. PLGA was detrimental to magnesium when used as a substrate, but gelatin and the gelatin/PVA hydrogel are both fully biodegradable and have potential as flexible or stretchable (respectively) substrates. Item withdrawn by Rebecca Bryant (rabryant@illinois.edu) on 2012-04-18T18:49:01Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 2 Rill_Elliott.docx: 859904 bytes, checksum: fa5dc3f1c463f71c0f6c2c4bb8aebfcf (MD5) Rill_Elliott.pdf: 1232806 bytes, checksum: c8ebcda5127af4ad9e86cd8e4d43bb0c (MD5) Made available in DSpace on 2012-05-22T00:35:39Z (GMT). No. of bitstreams: 3 Rill_Elliott.pdf: 1263217 bytes, checksum: 41c1ff300d51388bf758d7e667c20dd4 (MD5) Rill_Elliott.docx: 859904 bytes, checksum: fa5dc3f1c463f71c0f6c2c4bb8aebfcf (MD5) license.txt: 4060 bytes, checksum: f1ea914de9d5970ff06585cf7ee29ee5 (MD5) http://hdl.handle.net/2142/31207 en Copyright 2012 Elliott Rill Magnesium AZ31 tungsten zinc silk collagen PLGA PVA gelatin biodegradable biocompatible Evaluation of time-dependent properties of biodegradable materials for transient implantable biosensors text Materials Science & Engineerng 1919 Materials Science & Engr 0130 University of Illinois at Urbana-Champaign Thesis M.S. MS: MatSE BS/MS program - UIUC 10KS5012MS