Preprint Article Version 1 NOT YET PEER-REVIEWED

Plasma Polymerization SnOxCy Organic-like Films and Grafted PNIPAAm Composite Hydrogel with Nanogold Particles for Promotion Thermal Resistive Properties

  1. Department of Materials Engineering, Tatung University, Taipei 104, Taiwan
  2. Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan
  3. Bachelor Program for Design and Materials for Medical Equipment and Devices, Da Yeh University, Changhua 515, Taiwan
Version 1 : Received: 27 September 2016 / Approved: 28 September 2016 / Online: 28 September 2016 (09:49:23 CEST)

How to cite: Chou, C.; Chen, K.; Lin, W.; Ye, Y.; Liao, S. Plasma Polymerization SnOxCy Organic-like Films and Grafted PNIPAAm Composite Hydrogel with Nanogold Particles for Promotion Thermal Resistive Properties. Preprints 2016, 2016090109 (doi: 10.20944/preprints201609.0109.v1). Chou, C.; Chen, K.; Lin, W.; Ye, Y.; Liao, S. Plasma Polymerization SnOxCy Organic-like Films and Grafted PNIPAAm Composite Hydrogel with Nanogold Particles for Promotion Thermal Resistive Properties. Preprints 2016, 2016090109 (doi: 10.20944/preprints201609.0109.v1).

Abstract

In this study, a new type of temperature sensor device was developed. The circular electrode of the thermal sensitive sensor was modified with TMT and O2 plasma to enhance the conductivity by forming a thin SnOxCy layer on the electrode surface. The Nano-Au particles were subjected to O2 plasma pretreatment to form peroxide groups on the surface. The thermally sensitive sensor was made by mixing the above-treated Nano-Au particles with N-isopropylacrylamide (NIPAAm) to form solution and then 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 ambient environment resistance test to measure the resistance, the LCST (lower critical solution temperature) of Nano-Au (MUA) mixed with NIPAAm hydrogel was found to be 32 °C. At ambient temperatures higher than LCST, the electrode resistance decreases linearly.

Subject Areas

nano-Au particles; NIPAAm hydrogel; plasma treatment; UV grafting

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