Polyions act as an electrostatic glue for mesoscopic particle aggregates

被引：24
作者：
Bordi, F
Cametti, C
Sennato, S
机构：
[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[2] INFM, CRS, SOFT, Unita Roma 1, Rome, Italy
来源：
CHEMICAL PHYSICS LETTERS | 2005年 / 409卷 / 1-3期
关键词：
D O I：
10.1016/j.cplett.2005.04.107
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Although complexation of charged particles induced by polyions of opposite charge is a well-known phenomenon, the possibility of obtaining equilibrium clusters stuck together by flexible polyions, which act as an electrostatic glue, is not completely recognized. In this Letter, we call attention towards the behavior of polyions in attaching together charged particles, by means of controlled electrostatic interactions. As an example, we present some features of equilibrium clusters composed of cationic liposomes built up by DOTAP and glued up by an anionic polyion, polyacrylate sodium salt. We discuss briefly some applications in nanostructure science and biotechnology. (c) 2005 Elsevier B.V. All rights reserved.
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页码：134 / 138
页数：5
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