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卟啉有机纳米聚集体的研究 Research the Property of Organic Nano Gathered Based on Porphyrin

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Author(s): 王贺 | 吴学

Journal: Hans Journal of Nanotechnology
ISSN 2161-086X

Volume: 02;
Issue: 02;
Start page: 32;
Date: 2012;
Original page

Keywords: 卟啉 | H聚集 | J聚集 | 自组装 | Porphyrin | H-Aggregation | J-Aggregation | Self-Assemble

ABSTRACT
本文设计合成了两个以卟啉为核心尾端分别连有亲水基团和疏水基团的枝状化合物,并对其在水中的聚集行为进行研究及表征。通过紫外可见(UV-vis)吸收光谱和扫描电子显微镜(SEM)的分析,发现在连有疏水基团的卟啉化合物1是H型聚集的棒状结构,而连有亲水基团的卟啉化合物2则是J型聚集的空心球结构(直径大约340 nm),与纳米粒度分析仪计算的结果基本一致。所以我们得出,通过改变卟啉外部的取代基可以调控其纳米聚集体的形貌。We designed and synthesized dendritic porphyrin which brings hydrophilic groups and hydrophobic groups. Their different aggregation behaviors in aqueous solution were studied by using UV absorption spectroscopy, scanning electron microscopy (SEM) and Nanoparticle technology. Results indicated that porphyrin 1 bearing hydrophobic group can form rod-like structures introduced by H-aggregation. Porphyrin 2 containing hydrophilic moiety can form hollow spherical structures (diameter is about 340 nm) caused by J-aggregation. So we have come, by changing the the por- phyrins external substituents can be modulated by the morphology of nano-aggregates.
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