Studies of Langmuir-Blodgett films of poly(1-benzyl-L-histidine) -stearic acid mixtures

Taiji Furuno, Hiroyuki Sasabe, Ryouhei Nagata, Toshihiro Akaike

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The structures of monolayers and multilayers of poly-1-benzyl-L-histidine (PBLH)-stearic acid (StA) mixtures have been investigated. The force-area (FA) curves of the monolayer had a plateau region which can be attributed to a transition from the liquid to the solid phase rather than that from a monolayer to a bilayer, as reported for α-helical polypeptides such as poly-γ-benzyl-L-glutamate. The cyclic FA curve measurements, i.e. the cycles of compression and successive expansion of the monolayer, showed that the structural change in the monolayer from the liquid to the solid phase was practically reversible. The FA curves of the mixed monolayer showed a strong dependence on the cation species in the subphase. The mixed multilayers prepared by a horizontal lifting method gave X-ray diffraction patterns which suggested that they had a Y-type structure, despite the fact that this method would lead one to expect the formation of an X-type structure. Studies on the relationship between the UV absorption spectra of the Langmuir-Blodgett films and the surface pressure for deposition suggested that a change in the orientation of PBLH chromophores occured at the plateau region in the FA curves.

本文言語English
ページ(範囲)141-152
ページ数12
ジャーナルThin Solid Films
133
1-4
DOI
出版ステータスPublished - 1985 11
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 表面および界面
  • 表面、皮膜および薄膜
  • 金属および合金
  • 材料化学

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