Document Detail


Synthesis and development of poly(n-hydroxyethyl acrylamide)-ran-3-acrylamidophenylboronic Acid polymer fluid for potential application in affinity sensing of glucose.
MedLine Citation:
PMID:  22027298     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Background: In previous work, we described viscosity and permittivity microelectromechanical systems (MEMS) sensors for continuous glucose monitoring (CGM) using poly[acrylamide-ran-3-acrylamidophenylboronic acid (PAA-ran-PAAPBA). In order to enhance our MEMS device antifouling properties, a novel, more hydrophilic polymer-sensing fluid was developed. Method: To optimize sensing performance, we synthesized biocompatible copolymers poly(N-hydroxyethyl acrylamide)-ran-3-acrylamidophenylboronic acid (PHEAA-ran-PAAPBA) and developed its sensing fluid for viscosity-based glucose sensing. Key factors such as polymer composition and molecular weight were investigated in order to optimize viscometric responses. Results: Compared with PAA-ran-PAAPBA fluid of a similar binding moiety percentage, PHEAA-ran-PAAPBA showed comparable high binding specificity to glucose in a reversible manner and even better performance in glucose sensing in terms of glucose sensing range (27-468 mg/ml) and sensitivity (within 3% standard error of estimate). Preliminary experiment on a MEMS viscometer demonstrated that the polymer fluid was able to sense the glucose concentration. Conclusions: Our MEMS systems using PHEAA-ran-PAAPBA will possess enhanced implantable traits necessary to enable CGM in subcutaneous tissues.
Authors:
Siqi Li; Erin N Davis; Xian Huang; Bing Song; Rebecca Peltzman; David M Sims; Qiao Lin; Qian Wang
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Publication Detail:
Type:  Journal Article     Date:  2011-09-01
Journal Detail:
Title:  Journal of diabetes science and technology     Volume:  5     ISSN:  1932-2968     ISO Abbreviation:  J Diabetes Sci Technol     Publication Date:  2011  
Date Detail:
Created Date:  2011-10-26     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101306166     Medline TA:  J Diabetes Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1060-7     Citation Subset:  IM    
Copyright Information:
© 2011 Diabetes Technology Society.
Affiliation:
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina.
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