Document Detail


Shape-memory anchoring system for bladder sensors.
MedLine Citation:
PMID:  21210417     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
In this work, we propose the use of shape-memory polymer as an anchoring system for a bladder sensor. The anchoring system was designed from a biomedical biodegradable water-based poly(ester-urethane) produced in an aqueous environment by using isophorone diisocyanate/hydrazine (hard segment) and poly(caprolactone diol)/2,2-bis (hydroxymethyl) propionic acid (soft segment) as the main reagents. Tensile strength and elongation-at-break deterioration upon degradation in synthetic urine were investigated. In-body shape recovery was simulated and measured in synthetic urine. Results indicated that shape recovery can occur at body temperature and expulsion of the sensor by the body along with urine may occur through the combined effect of urine hydrolytic attack and compression exerted by the bladder walls. © 2010 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 2010.
Authors:
Iaci M Pereira; Fabrice Axisa; Rodrigo L Oréfice; Jan Vanfleteren; Hercules P Neves
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-1-5
Journal Detail:
Title:  Journal of biomedical materials research. Part B, Applied biomaterials     Volume:  -     ISSN:  1552-4981     ISO Abbreviation:  -     Publication Date:  2011 Jan 
Date Detail:
Created Date:  2011-1-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101234238     Medline TA:  J Biomed Mater Res B Appl Biomater     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Brazilian Army Technological Center, Rio de Janeiro, Brazil.
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