Magnetically Guided Titania Nanotubes for Site-Selective Photocatalysis and Drug Release

被引：195

作者：

Shrestha, Nabeen K. ^{[1
]}

Macak, Jan M. ^{[1
]}

Schmidt-Stein, Felix ^{[1
]}

Hahn, Robert ^{[1
]}

Mierke, Claudia T. ^{[2
]}

Fabry, Ben ^{[2
]}

Schmuki, Patrik ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Mat Sci WW 4, LKO, D-91058 Erlangen, Germany

[2] Univ Erlangen Nurnberg, Dept Phys, Ctr Med Phys & Technol, D-91052 Erlangen, Germany

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 05期

关键词：

drug delivery; magnetic properties; nanostructures; photocatalysis; photooxidation; FILLED CARBON NANOTUBES; ANODIC TIO2 NANOTUBES; THIN-FILMS; DYE; NANOPARTICLES; DEGRADATION; PERFORMANCE; POLLUTANTS; GROWTH; ARRAYS;

D O I：

10.1002/anie.200804429

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The spatial and temporal delivery of active molecules (dyes or drugs) can be precisely controlled by the photocatalytic activity of TiO2 nanotubes (see picture). The cleavage of the link between the active molecule and the nanotubes, which are filled with magnetic Fe3O4 nanoparticles, occurs by photoinduced chain scission under UV light; the load can be released before photodegradation by action of photogenerated radicals can occur. (Figure Presented)

引用

页码：969 / 972

页数：4

共 51 条

[31] Dye-sensitized anodic TiO2 nanotubes [J].

Macák, JM ;

Tsuchiya, H ;

Ghicov, A ;

Schmuki, P .

ELECTROCHEMISTRY COMMUNICATIONS, 2005, 7 (11) :1133-1137

[32] High-aspect-ratio TiO2 nanotubes by anodization of titanium [J].

Macák, JM ;

Tsuchiya, H ;

Schmuki, P .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (14) :2100-2102

[33] Photocatalytic decolorization of rhodamine B dye as a model of dissolved organic compounds: Influence of dissolved inorganic chloride salts in seawater of the Sea of Japan [J].

Makita, Makoto ;

Harata, Akira .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2008, 47 (05) :859-863

[34] Highly regular anatase nanotubule arrays fabricated in porous anodic templates [J].

Michailowski, A ;

AlMawlawi, D ;

Cheng, GS ;

Moskovits, M .

CHEMICAL PHYSICS LETTERS, 2001, 349 (1-2) :1-5

[35] Ferromagnetic filled carbon nanotubes and nanoparticles:: synthesis and lipid-mediated delivery into human tumor cells [J].

Mönch, I ;

Meye, A ;

Leonhardt, A ;

Krämer, K ;

Kozhuharova, R ;

Gemming, T ;

Wirth, MP ;

Büchner, B .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 290 :276-278

[36] Semiconductor-mediated photocatalysed degradation of two selected priority organic pollutants, benzidine and 1,2-diphenylhydrazine, in aqueous suspension [J].

Muneer, M ;

Singh, HK ;

Bahnemann, D .

CHEMOSPHERE, 2002, 49 (02) :193-203

[37] A LOW-COST, HIGH-EFFICIENCY SOLAR-CELL BASED ON DYE-SENSITIZED COLLOIDAL TIO2 FILMS [J].

OREGAN, B ;

GRATZEL, M .

NATURE, 1991, 353 (6346) :737-740

[38] Nanosize and vitality:: TiO2 nanotube diameter directs cell fate [J].

Park, Jung ;

Bauer, Sebastian ;

von der Mark, Klaus ;

Schmuki, Patrik .

NANO LETTERS, 2007, 7 (06) :1686-1691

[39] Template-assisted fabrication of dense, aligned arrays of titania nanotubes with well-controlled dimensions on substrates [J].

Sander, MS ;

Côté, MJ ;

Gu, W ;

Kile, BM ;

Tripp, CP .

ADVANCED MATERIALS, 2004, 16 (22) :2052-+

[40]

SCHMIDTSTEIN F, UNPUB

← 1 2 3 4 5 6 →