DocumentCode :
3305150
Title :
A piezoelectrically actuated linear rheometer for determining the properties of viscoelastic biomaterials with a thin fluid film coating
Author :
Parsons, J.W. ; Coger, R.N.
Author_Institution :
Dept. of Mech. Eng., North Carolina Univ., Charlotte, NC, USA
Volume :
2
fYear :
1999
fDate :
36434
Abstract :
A new type of rheometer, capable of determining the viscoelastic properties of hydrated biomaterials, has been designed. The key features of the design are its ability to test small sample volumes and to retain the presence of a hydrating layer. The rheometer uses a piezoelectric actuator and sensor to induce an oscillatory stress in the gel and to measure the corresponding strain. The efficacy of the design is confirmed using experimental results and a finite element model
Keywords :
atomic force microscopy; biomedical materials; biorheology; elastic moduli measurement; finite element analysis; gels; piezoelectric actuators; strain measurement; viscoelasticity; AFM cantilever; PVDF cantilever; biogels; design efficacy; finite element model; hydrated biomaterials; linear rheometer; loss moduli; oscillatory stress; piezoelectric actuator/sensor; piezoelectrically actuated; small sample volumes; storage moduli; thin fluid film coating; viscoelastic biomaterial properties; Attenuation; Elasticity; Equations; Finite element methods; Frequency; Material storage; Stress; Testing; Viscosity; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
ISSN :
1094-687X
Print_ISBN :
0-7803-5674-8
Type :
conf
DOI :
10.1109/IEMBS.1999.803988
Filename :
803988
Link To Document :
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