pH-Stimulated DNA Hydrogels Exhibiting Shape-Memory Properties

被引：453

作者：

Guo, Weiwei ^{[1
]}

Lu, Chun-Hua ^{[1
]}

Orbach, Ron ^{[1
]}

Wang, Fuan ^{[1
]}

Qi, Xiu-Juan ^{[1
,2
]}

Cecconello, Alessandro ^{[1
]}

Seliktar, Dror ^{[3
]}

Willner, Itamar ^{[1
]}

机构：

[1] Hebrew Univ Jerusalem, Inst Chem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel

[2] Fuzhou Univ, Coll Chem, Key Lab Anal & Detect Technol Food Safety MOE, Fuzhou 350108, Peoples R China

[3] Technion Israel Inst Technol, Fac Biomed Engn, IL-32000 Haifa, Israel

来源：

ADVANCED MATERIALS | 2015年 / 27卷 / 01期

基金：

以色列科学基金会;

关键词：

POLYMERS;

D O I：

10.1002/adma.201403702

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

(Figure Presented) Nucleic acid-functionalized polyacrylamide chains that are cooperatively cross-linked by i-motif and nucleic acid duplex units yield, at pH 5.0, DNA hydrogels exhibiting shape-memory properties. Separation of the i-motif units at pH 8.0 dissolves the hydrogel into a quasi-liquid phase. The residual duplex units provide, however, a memory code in the quasi-liquid allowing the regeneration of the hydrogel shape at pH 5.0. © 2014 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：73 / 78

页数：6

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