Molecular switching in nano-structured photochromic films of biopolymers

被引：7

作者：

Mecheri, B

Baglioni, P

Pieroni, O

Caminati, G

机构：

[1] Univ Florence, Dept Chem, I-50019 Florence, Italy

[2] Univ Florence, CSGI, I-50019 Florence, Italy

[3] Univ Catania, Dept Chem, I-95125 Catania, Italy

[4] CNR, Inst Biophys, I-56100 Pisa, Italy

来源：

MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS | 2003年 / 23卷 / 6-8期

关键词：

photochromism; monolayer; Langmuir-Blodgett film; electronic spectroscopies;

D O I：

10.1016/j.msec.2003.09.132

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper reports the investigation of the photochromic and conformational behaviour of a poly (L-glutamic acid) (PSG) chemically modified with 85% spiropyran units in the side chains, PSG. We preliminary studied the behaviour of PSG in solution and then we performed a characterisation of the polymer in bidimensional systems. PSG monolayer at the water-air interface was characterised by means of surface pressure-molecular area isotherms and UV-Vis Spectroscopy and the photochromic behaviour was illustrated. Moreover, we transferred, by means of the Langmuir-Blodgett (LB) technique, polypeptide monolayers onto solid support in order to obtain ordered and nano-organized systems whose spectroscopic properties were investigated. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：893 / 896

页数：4

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