Supermolecules of poly(N-isopropylacrylamide) complexating Herring sperm DNA with bio-multiple hydrogen bonding

Ai Wei Lee, Cheng Chen Hsu, Yi Zu Liu, Po Li Wei, Jem Kun Chen

研究成果: 雜誌貢獻文章同行評審

5 引文 斯高帕斯(Scopus)

摘要

In this study we used the poly(N-isopropylacrylamide) (PNIPAAm) as a medium to blend with an organic DNA, herring sperm DNA (HSD), to generate PNIPAAm-HSD supramolecular complexes. Bio-multiple hydrogen bonding (BMHB) between PNIPAAm and HSD was investigated that changed the temperature responsiveness of PNIPAAm relatively to the HSD concentrations. With blending the HSD into PNIPAAm matrix, the phase separation in solution is completely opposite from that of neat PNIPAAm. Surface property in static water contact angle (SWCA) is also opposite from that of pure PNIPAAm upon increasing HSD content over 60%. In addition, we found that the PNIPAAm and HSD self-assembled a specific triangle-like structure at a PNIPAAm-to-HSD weight ratio of 1:4 at 25 °C; while the triangle-like structure disappeared with increasing temperature to 45 °C. Furthermore, both PNIPAAm and HSD could be regarded as insulator, but it transformed into a semiconductive matter after blending with the HSD. Incorporation of organic DNA with hydrogel could significantly change their properties, which might facilitate their use as novel materials in bioelectronics.
原文英語
頁(從 - 到)422-430
頁數9
期刊Colloids and Surfaces B: Biointerfaces
148
DOIs
出版狀態已發佈 - 十二月 1 2016

ASJC Scopus subject areas

  • 生物技術
  • 表面和介面
  • 物理與理論化學
  • 膠體和表面化學

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