Poly(L-alanine)-modified nanoporous colloidal films

被引：17

作者：

Abelow, Alexis E. ^{[1
]}

Zharov, Ilya ^{[1
]}

机构：

[1] Univ Utah, Dept Chem, Salt Lake City, UT 84112 USA

来源：

SOFT MATTER | 2009年 / 5卷 / 02期

关键词：

POLYMER BRUSHES; RADICAL POLYMERIZATION; CHIRAL PERMSELECTIVITY; SURFACE; TRANSPORT; FABRICATION; MEMBRANES; CRYSTAL; LENGTH; DNA;

D O I：

10.1039/b808674e

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：

The surfaces of nanopores in colloidal films assembled from 255 nm silica spheres were modified with poly(L-alanine) brushes using surface-initiated polycondensation. Polymer length was controlled by the polymerization time. The molecular transport through the colloidal films was studied using cyclic voltammetry as a function of polymer brush thickness, temperature, and pH. Transport rates through the colloidal films were found to be dependent on temperature and pH, with the magnitude of the effect dependent on the length of the polypeptide chain.

引用

页码：457 / 462

页数：6

共 58 条

[1]

Advincula R. C., 2004, Polymer Brushes: Synthesis, Characterization, Applications

[2] Stimuli-responsive polyelectrolyte polymer brushes prepared via atom-transfer radical polymerization [J].

Ayres, Neil ;

Boyes, Stephen G. ;

Brittain, William J. .

LANGMUIR, 2007, 23 (01) :182-189

[3] Polyelectrolyte brushes [J].

Ballauff, Matthias ;

Borisov, Oleg .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2006, 11 (06) :316-323

[4] Resistive-pulse sensing - From microbes to molecules [J].

Bayley, H ;

Martin, CR .

CHEMICAL REVIEWS, 2000, 100 (07) :2575-2594

[5] Chiral permselectivity in nanoporous opal films surface-modified with chiral selector moieties [J].

Cichelli, Julie ;

Zharov, Ilya .

JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (19) :1870-1875

[6] Chiral permselectivity in surface-modified nanoporous opal films [J].

Cichelli, Julie ;

Zharov, Ilya .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (25) :8130-8131

[7]

Cussler E L., 2009, Diffusion: Mass Transfer in Fluid Systems

[8] Ordered porous materials for emerging applications [J].

Davis, ME .

NATURE, 2002, 417 (6891) :813-821

[9] Polymer brushes via surface-initiated polymerizations [J].

Edmondson, S ;

Osborne, VL ;

Huck, WTS .

CHEMICAL SOCIETY REVIEWS, 2004, 33 (01) :14-22

[10] Controlled grafting of a well-defined polymer on a porous glass filter by surface-initiated atom transfer radical polymerization [J].

Ejaz, M ;

Tsujii, Y ;

Fukuda, T .

POLYMER, 2001, 42 (16) :6811-6815

← 1 2 3 4 5 6 →