A redox responsive polymeric gel based on ionic crosslinking

被引：28

作者：

Fei, Shih-To

Phelps, Mwita V. B.

Wang, Yang

Barrett, Eric

Gandhi, Farhan

Allcock, Harry R. ^{[1
]}

机构：

[1] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Aerosp Engn, University Pk, PA 16802 USA

来源：

SOFT MATTER | 2006年 / 2卷 / 05期

关键词：

D O I：

10.1039/b516972k

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：

We report here an electrochemically responsive polymer hydrogel based on ionic crosslinking. The crosslinking by metal cations and anionic carboxylic acid side groups can be controlled by redox reactions. The crosslinks dissociate when the cation crosslinker is reduced to a lower oxidation state and reform following oxidation, which leads to a reversible and localized swelling-contraction. By choosing biocompatible components and miniaturization designs, the system has potential in microrobotic and biomedical applications.

引用

页码：397 / 401

页数：5

共 17 条

[1] HYDROPHILIC POLYPHOSPHAZENES AS HYDROGELS - RADIATION CROSS-LINKING AND HYDROGEL CHARACTERISTICS OF POLY[BIS(METHOXYETHOXYETHOXY)PHOSPHAZENE]
ALLCOCK, HR
KWON, S
RIDING, GH
FITZPATRICK, RJ
BENNETT, JL
[J]. BIOMATERIALS, 1988, 9 (06) : 509 - 513
[2] AN IONICALLY CROSS-LINKABLE POLYPHOSPHAZENE - POLY[BIS(CARBOXYLATOPHENOXY)PHOSPHAZENE] AND ITS HYDROGELS AND MEMBRANES .8.
ALLCOCK, HR
KWON, S
[J]. MACROMOLECULES, 1989, 22 (01) : 75 - 79
[3] Lower critical solubility temperature study of alkyl ether based polyphosphazenes
Allcock, HR
Dudley, GK
[J]. MACROMOLECULES, 1996, 29 (04) : 1313 - 1319
[4] Controlled formation of carboxylic acid groups at polyphosphazene surfaces: Oxidative and hydrolytic routes
Allcock, HR
Morrissey, CT
Way, WK
Winograd, N
[J]. CHEMISTRY OF MATERIALS, 1996, 8 (12) : 2730 - 2738
[5] Synthesis and characterization of pH-sensitive poly(organophosphazene) hydrogels
Allcock, HR
Ambrosio, AMA
[J]. BIOMATERIALS, 1996, 17 (23) : 2295 - 2302
[6] Bar-Cohen Y, 1999, P SPIES EL POL ACT D, V3669, P1
[7] Dielectric properties of relaxor-like vinylidene fluoride - Trifluoroethylene-based electroactive polymers
Bobnar, V
Vodopivec, B
Levstik, A
Kosec, M
Hilczer, B
Zhang, QM
[J]. MACROMOLECULES, 2003, 36 (12) : 4436 - 4442
[8] Electrostrictive properties of poly(vinylidenefluoridetrifluoroethylene-chlorotrifluoroethylene)
Buckley, GS
Roland, CM
Casalini, R
Petchsuk, A
Chung, TC
[J]. CHEMISTRY OF MATERIALS, 2002, 14 (06) : 2590 - 2593
[9] REDOX CAPACITY AND DIRECT-CURRENT ELECTRON CONDUCTIVITY IN ELECTROACTIVE MATERIALS
CHIDSEY, CED
MURRAY, RW
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1986, 90 (07) : 1479 - 1484
[10] Microfabricating conjugated polymer actuators
Jager, EWH
Smela, E
Inganäs, O
[J]. SCIENCE, 2000, 290 (5496) : 1540 - 1545

← 1 2 →