Document Detail


In situ-gelling, erodible N-isopropylacrylamide copolymers.
MedLine Citation:
PMID:  15997439     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Copolymers of N-isopropylacrylamide, 2-hydroxyethyl methacryl lactate [(HEMA)-lactate] and acrylic acid (AAc) were prepared with varying mole ratios of monomers to develop copolymers with gelation properties above a certain concentration for a bioerodible, in-situ gelling material. The copolymers formed gels in situ under physiological condition. The gelation temperature of the copolymers decreased as the HEMA-lactate content of the copolymers increased due to the hydrophobicity of HEMA-lactate, and increased as the AAc content increased due to the hydrophilicity of AAc. The gels redissolve at 37 degrees C as their LCSTs increase above 37 degrees C due to the hydrolysis of the HEMA-lactate pendant groups.
Authors:
Bae Hoon Lee; Brent Vernon
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Macromolecular bioscience     Volume:  5     ISSN:  1616-5187     ISO Abbreviation:  Macromol Biosci     Publication Date:  2005 Jul 
Date Detail:
Created Date:  2005-07-18     Completed Date:  2005-12-05     Revised Date:  2011-09-26    
Medline Journal Info:
Nlm Unique ID:  101135941     Medline TA:  Macromol Biosci     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  629-35     Citation Subset:  IM    
Affiliation:
The Harrington Department of Bioengineering, Arizona State University, ECG 334, Tempe, AZ 85287-9709, USA.
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MeSH Terms
Descriptor/Qualifier:
Acrylamides / chemistry*
Acrylates / chemistry
Biocompatible Materials / chemical synthesis,  chemistry*
Gels / chemical synthesis,  chemistry*
Hydrolysis
Lactates / chemistry
Methacrylates / chemistry
Polymers / chemical synthesis,  chemistry*
Temperature
Grant Support
ID/Acronym/Agency:
5R01 GM065917-02/GM/NIGMS NIH HHS; R01 GM065917-01A1/GM/NIGMS NIH HHS; R01 GM065917-02/GM/NIGMS NIH HHS
Chemical
Reg. No./Substance:
0/Acrylamides; 0/Acrylates; 0/Biocompatible Materials; 0/Gels; 0/Lactates; 0/Methacrylates; 0/Polymers; 2210-25-5/N-isopropylacrylamide; 79-10-7/acrylic acid; 868-77-9/hydroxyethyl methacrylate
Comments/Corrections

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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