Electric field-responsive ion pair self-assembly

被引：6
|
作者：
Long, Wenting
Kim, Jin-Chul [1 ,2 ]
机构：
[1] Kangwon Natl Univ, Dept Biomed Sci, Chunchon 24341, South Korea
[2] Kangwon Natl Univ, Inst Biosci & Biotechnol, Chunchon 24341, South Korea
来源：
INTERNATIONAL JOURNAL OF POLYMERIC MATERIALS AND POLYMERIC BIOMATERIALS | 2023年 / 72卷 / 06期
基金：
新加坡国家研究基金会;
关键词：
Electric field; drug carrier; ion pair assembly; oxidation; temperature; DRUG CARRIERS; BLOCK-COPOLYMER; NANOPARTICLES; RELEASE; EQUATION; CARBOXYL; PHASES;
D O I：
10.1080/00914037.2022.2029439
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
Ion pair self-assembly (IPSAM) composed of poly(ethylenimine) (PEI) and (phenylthio)acetic acid (PTA) was prepared to investigate the electric field-responsive release property. PEI/PTA ion pairs were found to have an upper critical solution temperature and were air/water interface-active. IPSAM could release its payload (i.e., nile red) in proportion to the voltage. It was more sensitive to the electric field as PEI/PTA ratio was higher, and more sensitive to temperature change as the voltage was stronger. The electric field-induced protonation and oxidation were thought to be major reasons why IPSAM was responsive to the electric field in terms of release.
引用
收藏
页码：485 / 496
页数：12
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