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Plasma Polymerization of SnOxCy Organic-Like Films and Grafted PNIPAAm Composite Hydrogel with Mangled Particles for Promotion of Thermal Resistive Properties.
- Source :
- Micromachines; Jan2017, Vol. 8 Issue 1, p5, 9p
- Publication Year :
- 2017
-
Abstract
- In this study, a new type of temperature sensor device was developed. The circular electrode of the thermally sensitive sensor was modified with tetramethyltin (TMT) and O<subscript>2</subscript> plasma to form a thin SnOxCy conductive layer on the electrode surface. The nano-Au particles (AuNPs) were subjected to O<subscript>2</subscript> plasma pretreatment to form peroxide groups on the surface. The thermally sensitive sensor made by mixing the treated AuNPs with N-isopropylacrylamide (NIPAAm) solution and then applying UV-induced grafting polymerization of the NIPAAm-containing solution onto the electrode substrate. The composite hydrogels on the electrode introduce thermo-sensitive polymeric surface films for temperature sensing. Using the ambient environment resistance test to measure the resistance, the lower critical solution temperature (LCST) of AuNPs mixed with NIPAAm hydrogel was found to be 32 °C. In common metallic materials, the resistance increased during environmental temperature enhancement. In this study, at ambient temperatures higher than the LCST, the electrode resistance decreases linearly due to the shrinkage structure with AuNPs contacting the circuit electrode. [ABSTRACT FROM AUTHOR]
- Subjects :
- PLASMA polymerization
GOLD nanoparticles
HYDROGELS
Subjects
Details
- Language :
- English
- ISSN :
- 2072666X
- Volume :
- 8
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Micromachines
- Publication Type :
- Academic Journal
- Accession number :
- 120993855
- Full Text :
- https://doi.org/10.3390/mi8010005