The effect of the encapsulation of bacteria in redox phospholipid polymer hydrogels on electron transfer efficiency in living cell-based devices

Xiaojie Lin, Koichi Nishio, Tomohiro Konno, Kazuhiko Ishihara

研究成果: Article査読

43 被引用数 (Scopus)

抄録

Development of living cell-based devices holds great promise in many biomedical and industrial applications. To increase our understanding of the process, we investigated the biological and electrochemical properties of a redox phospholipid polymer hydrogel containing an electron-generating bacteria (Shewanella oneidensis MR-1). A water-soluble and amphiphilic phospholipid polymer, poly(2-methacryloyloxyethyl phosphorylcholine-. co-. n-butyl methacrylate-. co-. p-vinylphenylboronic acid-. co-vinylferrocene) (PMBVF), was our choice for incorporation into a hydrogel matrix that promotes encapsulation of bacteria and acts as an electron transfer mediator. This hydrogel formed spontaneously and encapsulated Shewanella in three-dimensional structures. Visual analysis showed that the encapsulated Shewanella maintained viability and metabolic activity even after long-term storage. Cyclic voltammetry measurement indicated that the PMBVF/poly(vinyl alcohol) (PMBVF/PVA) hydrogel had stable and high electron transfer efficiency. Amperometric measurement showed that the hydrogel could maintain the electron transfer efficiency even when Shewanella was encapsulated. Thus, the PMBVF/PVA hydrogel not only provides a mild environment for long-term bacterial survival but also maintains electron transfer efficiency from the bacteria to the electrode. We conclude that hydrogel/bacteria hybrid biomaterials, such as PMBVF/PVA/. Shewanella, may find application in the fabrication of living cell-based devices.

本文言語English
ページ(範囲)8221-8227
ページ数7
ジャーナルBiomaterials
33
33
DOI
出版ステータスPublished - 2012 11
外部発表はい

ASJC Scopus subject areas

  • バイオエンジニアリング
  • セラミックおよび複合材料
  • 生物理学
  • 生体材料
  • 材料力学

フィンガープリント

「The effect of the encapsulation of bacteria in redox phospholipid polymer hydrogels on electron transfer efficiency in living cell-based devices」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル