Nanoporous delivery devices based on biodegradable polymers for constant drug release

Hongyan He, Chi Yen, Natalie Jones, Winston Ho, William E. Carson, L. James Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A particulate-like miniature device made of biodegradable polymers has been developed to provide drug protection and constant delivery. The main part of the device is a nanoporous controlled gate and a fabricated drug reservoir loaded with a therapeutic agent. A method to create nanoporous composite membranes via phase inversion has been described to prepare the controlled gate. A small amount of Na-montmorillonite was used as additive to stabilize the membrane structure and improve the diffusion of hydrophilic molecules through the membrane. To improve the biocompatibility of the devices, a hydrophilic poly(ethylene glycol) diacrylate was coated onto the device surface by UV-polymerization. Carbon dioxide (CO2)-assisted bonding was applied for device assembling to minimize the negative effect of the manufacturing process on the protein bioactivity. The constant release has been successfully demonstrated in vitro using a Costar Transwell setup.

Original languageEnglish
Title of host publication2007 AIChE Annual Meeting
StatePublished - 2007
Event2007 AIChE Annual Meeting - Salt Lake City, UT, United States
Duration: Nov 4 2007Nov 9 2007

Publication series

NameAIChE Annual Meeting, Conference Proceedings

Other

Other2007 AIChE Annual Meeting
Country/TerritoryUnited States
CitySalt Lake City, UT
Period11/4/0711/9/07

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