基于光子晶体的层层组装设计与表征

摘要

利用聚烯丙基铵盐酸盐（PAH）、腐植酸（HA）以及金属离子之间的配位作用，在丙烯酰胺类凝胶光子晶体表面进行层层组装。并利用凝胶光子晶体的适时、自表达光响应特性，借助光纤光谱仪实现了水溶液中层层组装过程中光子晶体布拉格衍射峰的变化监测，发展了一种新的层层组装表征手段。

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	牛慧
	余莉萍

关键词：凝胶光子晶体；层层组装；布拉格衍射峰

Abstract：

Hydrogel photonic crystal was prepared by infiltrating the mixture of acrylamide and acrylic acid precursors into the polystyrene photonic crystal template. Poly(allylamine hydrochloride) (PAH), humic acid (HA) and Cd²⁺ were then layer-by-layer assembled onto the surface of the hydrogel via electrostatic force and the force of coordination between molecules. The response of hydrogel photonic crystal to the growth of the assemblies in aqueous solution are monitored through a series of readable Bragg diffraction shifts, which were due to the lattice change of photonic crystal structure responding to the interaction between the molecules. This approach is thus considered to be a promising way to characterize layer-by-layer assembly process without using label techniques and expensive instruments.

Keywords： hydrogel photonic crystal； layer-by-layer assembly； Bragg diffraction peak

Received 2015-01-17;

Corresponding Authors: 余莉萍,E-mail:lipingyu@tju.edu.cn。 Email: lipingyu@tju.edu.cn

About author: 牛慧(1990-),女,硕士研究生,研究方向为凝胶光子晶体。

引用本文:

牛慧, 余莉萍.基于光子晶体的层层组装设计与表征[J]. 化学工业与工程, 2016,33(6): 69-73

Niu Hui, Yu Liping.Design and Characterization of Assembly Process by Coupling Layer-by-Layer Assembly with Hydrogel Photonic Crystal[J]. Chemcial Industry and Engineering, 2016,33(6): 69-73

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