Complex aggregates of spherical colloids via modified micromolding in capillaries

被引：4

作者：

Huang, WH ^{[1
]}

Li, JA ^{[1
]}

Xue, LJ ^{[1
]}

Xing, RB ^{[1
]}

Luan, SF ^{[1
]}

Luo, CX ^{[1
]}

Liu, LB ^{[1
]}

Han, YC ^{[1
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, Grad Sch, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2006年 / 278卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

micromolding in capillaries (MIMIC); silica microspheres; aggregates; conformal contact; non-conformal contact;

D O I：

10.1016/j.colsurfa.2005.12.012

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：

This paper describes a simple approach to fabricate aggregates composed of monodispersed silica microspheres by modified micromolding in capillaries (MIMIC). Two different kinds of contact modes, namely, conformal contact and non-conformal contact, between the poly(dimethylsiloxane) (PDMS) mold and the underlying prepatterned substrate, can be controlled during the micromolding, which result in the formation of different aggregates under the influence of template confinement and capillary forces. These aggregates, including woodpile structure, discoid, conoid and rectangular clusters, possess well-controlled sizes and orientation. The possible mechanisms for the formation of different aggregates are discussed in detail. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：144 / 148

页数：5

共 45 条

[1] Patterned colloidal deposition controlled by electrostatic and capillary forces
Aizenberg, J
Braun, PV
Wiltzius, P
[J]. PHYSICAL REVIEW LETTERS, 2000, 84 (13) : 2997 - 3000
[2] BLAADEREN A, 1997, NATURE, V385, P321
[3] Nanostructuring conjugated materials by lithographically controlled wetting
Cavallini, M
Biscarini, F
[J]. NANO LETTERS, 2003, 3 (09) : 1269 - 1271
[4] Selective self-organization of colloids on patterned polyelectrolyte templates
Chen, KM
Jiang, XP
Kimerling, LC
Hammond, PT
[J]. LANGMUIR, 2000, 16 (20) : 7825 - 7834
[5] Colloidal-crystal-assisted imprint for mesoscopic structured arrays and hierarchical patterns
Chen, X
Sun, ZQ
Zheng, LL
Chen, ZM
Wang, YF
Fu, N
Zhang, K
Yan, X
Liu, H
Jiang, L
Yang, B
[J]. ADVANCED MATERIALS, 2004, 16 (18) : 1632 - +
[6] 2-DIMENSIONAL CRYSTALLIZATION
DENKOV, ND
VELEV, OD
KRALCHEVSKY, PA
IVANOV, IB
YOSHIMURA, H
NAGAYAMA, K
[J]. NATURE, 1993, 361 (6407) : 26 - 26
[7] Site-selective growth of colloidal crystals with photonic properties on chemically patterned surfaces
Fustin, CA
Glasser, G
Spiess, HW
Jonas, U
[J]. ADVANCED MATERIALS, 2003, 15 (12) : 1025 - +
[8] Gu ZZ, 2002, ANGEW CHEM INT EDIT, V41, P2068
[9] Electrophoretic assembly of colloidal crystals with optically tunable micropatterns
Hayward, RC
Saville, DA
Aksay, IA
[J]. NATURE, 2000, 404 (6773) : 56 - 59
[10] Polymerized colloidal crystal hydrogel films as intelligent chemical sensing materials
Holtz, JH
Asher, SA
[J]. NATURE, 1997, 389 (6653) : 829 - 832

← 1 2 3 4 5 →