Highly Extensible Bio-Nanocomposite Films with Direction-Dependent Properties

被引：73

作者：

Gaharwar, Akhilesh K. ^{[1
]}

Schexnailder, Patrick ^{[1
]}

Kaul, Vikas ^{[1
]}

Akkus, Ozan ^{[1
]}

Zakharov, Dmitri ^{[2
]}

Seifert, Soenke ^{[3
]}

Schmidt, Gudrun ^{[1
]}

机构：

[1] Purdue Univ, Weldon Sch Biomed Engn, W Lafayette, IN 47907 USA

[2] Purdue Univ, Birck Nanotechnol Ctr, W Lafayette, IN 47907 USA

[3] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 03期

基金：

美国国家科学基金会;

关键词：

MATERIALS SCIENCE; BLOCK-COPOLYMER; SILICON; BONE; CRYSTALLIZATION; REQUIREMENT; EXPRESSION; NANOSCALE; GROWTH;

D O I：

10.1002/adfm.200901606

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The structure and mechanical properties of bio-nanocomposite films made from poly(ethylene oxide) (PEO) that is physically cross-linked with silicate nanoparticles, Laponite, are investigated. Direction-dependent mechanical properties of the films are presented, and the effect of shear orientation during sample preparation oon tensile strength and elongation is assessed. Repeated mechanical deformation results in highly extensible materials with preferred orientation and structuring at the nano- and micrometer scales. Additionally, in vitro biocompatibility data are reported, and NIH 3T3 fibroblasts are observed to readily adhere and proliferate on silicate cross-linked PEO while maintaining high cell viability.

引用

页码：429 / 436

页数：8

共 47 条

[1] Polymer-layered silicate nanocomposites: Preparation, properties and uses of a new class of materials
Alexandre, Michael
Dubois, Philippe
[J]. Materials Science and Engineering: R: Reports, 2000, 28 (1-2) : 1 - 63
[2] 3D Hierarchical orientation in polymer-clay nanocomposite films
Bafna, A
Beaucage, G
Mirabella, F
Mehta, S
[J]. POLYMER, 2003, 44 (04) : 1103 - 1115
[3] Bioinspired design and assembly of platelet reinforced polymer films
Bonderer, Lorenz J.
Studart, Andre R.
Gauckler, Ludwig J.
[J]. SCIENCE, 2008, 319 (5866) : 1069 - 1073
[4] CARLISLE EM, 1980, FED PROC, V39, P787
[5] SILICON - A REQUIREMENT IN BONE-FORMATION INDEPENDENT OF VITAMIN-D1
CARLISLE, EM
[J]. CALCIFIED TISSUE INTERNATIONAL, 1981, 33 (01) : 27 - 34
[6] Influence of added clay particles on the structure and rheology of a hexagonal phase formed by an amphiphilic block copolymer in aqueous solution
Castelletto, V
Ansari, IA
Hamley, IW
[J]. MACROMOLECULES, 2003, 36 (05) : 1694 - 1700
[7] Fuzzy nanoassemblies: Toward layered polymeric multicomposites
Decher, G
[J]. SCIENCE, 1997, 277 (5330) : 1232 - 1237
[8] Disegi JA, 2000, INJURY, V31, pS2
[9] Unusual multilayered structures in poly(ethylene oxide)/laponite nanocomposite films
Dundigalla, A
Lin-Gibson, S
Ferreiro, V
Malwitz, MM
Schmidt, G
[J]. MACROMOLECULAR RAPID COMMUNICATIONS, 2005, 26 (03) : 143 - 149
[10] Materials become insensitive to flaws at nanoscale:: Lessons from nature
Gao, HJ
Ji, BH
Jäger, IL
Arzt, E
Fratzl, P
[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2003, 100 (10) : 5597 - 5600

← 1 2 3 4 5 →