Optimal plasticizer content for magnetic elastomers used for cell culture substrate

Mayuko Watanabe, Yukiko Tanaka, Daiki Murakami, Masaru Tanaka, Mika Kawai, Tetsu Mitsumata

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of a magnetic field on the water contact angle for magnetic elastomers with various plasticizer contents was investigated. At a plasticizer content below 60 wt %, there was no change in contact angle when a magnetic field of 370 mT was applied. For magnetic elastomers with a plasticizer content above 65 wt %, a change in contact angle of approximately 8.0° was observed (e.g. 38° at 0 mT and 46° at 370 mT for 65 wt % plasticizer content). Dynamic viscoelastic measurements showed that magnetic elastomers with a plasticizer content below 60 wt % demonstrate the magnetorheological (MR) effect with changes in storage modulus higher than 31 MPa. Atomic force microscopy for magnetic elastomer with a plasticizer content of 50 wt % revealed that the averaged Young’s modulus was 233 « 52.1 kPa at 370 mT and 83 « 5.4 kPa at 0 mT, indicating that the MR effect is caused not only on a bulk but also on a mesoscopic scale. Magnetic elastomers specialized for cell culture were obtained by optimizing the plasticizer content, that exhibit the MR effect with changes in storage modulus from 1.3

Original languageEnglish
Pages (from-to)280-283
Number of pages4
JournalChemistry Letters
Volume49
Issue number3
DOIs
Publication statusPublished - 2020

All Science Journal Classification (ASJC) codes

  • Chemistry(all)

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