Self-Healing Colloidal Crystals

被引：123
作者：
Iyer, Ashlee St. John
Lyon, L. Andrew [1 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 25期
关键词：
colloids; gels; polymers; self-assembly; self-healing; POLY(N-ISOPROPYLACRYLAMIDE) MICROGEL PARTICLES; POLYDISPERSE HARD-SPHERES; PHASE-BEHAVIOR; HYBRID MICROGELS; SUSPENSIONS; HYDROGEL; TEMPERATURE; CRYSTALLIZATION; NUCLEATION; MICROSCOPY;
D O I：
10.1002/anie.200901670
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Healing hands: A complex interplay between colloidal and polymeric energetics in microgel selfassembly behavior results in soft colloidal assemblies with self-healing properties. Repulsive soft spheres can adopt highly compressed conformations in colloidal crystalline lattices without directly contacting the nearest neighbors (see picture). This distant action is directly responsible for the self-healing of the assemblies. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码：4562 / 4566
页数：5
相关论文
共 44 条
[1]   Premelting at defects within bulk colloidal crystals [J].
Alsayed, AM ;
Islam, MF ;
Zhang, J ;
Collings, PJ ;
Yodh, AG .
SCIENCE, 2005, 309 (5738) :1207-1210
[2]   Suppression of crystal nucleation in polydisperse colloids due to increase of the surface free energy [J].
Auer, S ;
Frenkel, D .
NATURE, 2001, 413 (6857) :711-713
[3]   OSMOTIC DE-SWELLING OF GELS BY POLYMER-SOLUTIONS [J].
BASTIDE, J ;
CANDAU, S ;
LEIBLER, L .
MACROMOLECULES, 1981, 14 (03) :719-726
[4]   BROWNIAN DIFFUSION OF PARTICLES WITH HYDRODYNAMIC INTERACTION [J].
BATCHELOR, GK .
JOURNAL OF FLUID MECHANICS, 1976, 74 (MAR9) :1-29
[5]   Monte carlo study of freezing of polydisperse hard spheres [J].
Bolhuis, PG ;
Kofke, DA .
PHYSICAL REVIEW E, 1996, 54 (01) :634-643
[6]   Photonic Hydrogels with Poly(ethylene glycol) Derivative Colloidal Spheres as Building Blocks [J].
Cai, Tong ;
Wang, Guonan ;
Thompson, Samuel ;
Marquez, Manuel ;
Hu, Zhibing .
MACROMOLECULES, 2008, 41 (24) :9508-9512
[7]   Methods of digital video microscopy for colloidal studies [J].
Crocker, JC ;
Grier, DG .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 179 (01) :298-310
[8]   Influence of particle volume fraction on packing in responsive hydrogel colloidal crystals [J].
Debord, SB ;
Lyon, LA .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (13) :2927-2932
[9]   Osmotic de-swelling of ionic microgel particles [J].
Fernández-Nieves, A ;
Fernández-Barbero, A ;
Vincent, B ;
de las Nieves, FJ .
JOURNAL OF CHEMICAL PHYSICS, 2003, 119 (19) :10383-10388
[10]  
Flory P J., PRINCIPLES POLYM CHE
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