Authors:
Yasuo Shikinami
;
Kazuhiro Yasukawa
and
Kaoru Tsuta
Affiliation:
Takiron Co.,Ltd. Medical Institute, Japan
Keyword(s):
Soft gel, Energy transmissible media, Electric conductivity, Ultrasound transmission, 3D configuration.
Related
Ontology
Subjects/Areas/Topics:
Biomedical Engineering
;
Biomedical Instruments and Devices
;
Biomedical Sensors
Abstract:
We had synthesized single component permanent gels, segmented polyurethane gels (SPUGs), essentially consisting of gelatinizing component-only, of which almost of segments and dangling chains are liquid state at ambient temperatures. SPUGs transmit energy well such as electricity, light and ultrasound. In this article, SPUGs were improved by adding dispersive media into swollen SPUGs (S-SPUGs), which acquired higher electric conductivity (1.2×10-3 S/cm) at room temperature and lower ultrasound attenuation (0.13 dB/ MHz cm) than SPUGs and readily responded to very low mechanical stress (Young modulus 3.7×104 Pa) due to its high flexibility like soft tissues of living body. The S-SPUGs, which have three-dimensionally casting moldability and stable configuration, are potentially applicable to soft biomaterials with energy transmissible, transducing faculty.