X-ray induced photocatalysis on TiO2 and TiO2 nanotubes: Degradation of organics and drug release

Felix Schmidt-Stein; Robert Hahn; Jan Frederik Gnichwitz; Yan Yan Song; Nabeen K. Shrestha; Andreas Hirsch; Patrik Schmuki

doi:10.1016/j.elecom.2009.08.036

X-ray induced photocatalysis on TiO₂ and TiO₂ nanotubes: Degradation of organics and drug release

Felix Schmidt-Stein
, Robert Hahn
, Jan Frederik Gnichwitz
, Yan Yan Song
, Nabeen K. Shrestha
, Andreas Hirsch
, Patrik Schmuki

Division of System Semiconductor

Friedrich-Alexander University Erlangen-Nürnberg

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

The photocatalytic activity of titanium dioxide under X-ray radiation is of great interest for biomedical applications. In the present work we explore the use of compact TiO₂ layers and TiO₂ nanotubes for X-ray induced photocatalysis, in particular the degradation of organics and monolayer chain scission for drug release. The radiation was done with a conventional X-ray source and doses up to 50 × 10^-3 J/kg. The results show the feasibility of X-ray catalysis on TiO₂ and X-ray induced monolayer chain scission by the release of surface attached Zn-porphyrin molecules. Furthermore, a higher efficiency for anatase films and nanotubes is obtained than for amorphous morphologies.

Original language	English
Pages (from-to)	2077-2080
Number of pages	4
Journal	Electrochemistry Communications
Volume	11
Issue number	11
DOIs	https://doi.org/10.1016/j.elecom.2009.08.036
State	Published - Nov 2009

Keywords

Drug release
Monolayer
Nanotubes
Organic degradation
TiO
X-ray irradiation

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10.1016/j.elecom.2009.08.036

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title = "X-ray induced photocatalysis on TiO2 and TiO2 nanotubes: Degradation of organics and drug release",

abstract = "The photocatalytic activity of titanium dioxide under X-ray radiation is of great interest for biomedical applications. In the present work we explore the use of compact TiO2 layers and TiO2 nanotubes for X-ray induced photocatalysis, in particular the degradation of organics and monolayer chain scission for drug release. The radiation was done with a conventional X-ray source and doses up to 50 × 10-3 J/kg. The results show the feasibility of X-ray catalysis on TiO2 and X-ray induced monolayer chain scission by the release of surface attached Zn-porphyrin molecules. Furthermore, a higher efficiency for anatase films and nanotubes is obtained than for amorphous morphologies.",

keywords = "Drug release, Monolayer, Nanotubes, Organic degradation, TiO, X-ray irradiation",

author = "Felix Schmidt-Stein and Robert Hahn and Gnichwitz, \{Jan Frederik\} and Song, \{Yan Yan\} and Shrestha, \{Nabeen K.\} and Andreas Hirsch and Patrik Schmuki",

year = "2009",

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doi = "10.1016/j.elecom.2009.08.036",

language = "English",

volume = "11",

pages = "2077--2080",

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TY - JOUR

T1 - X-ray induced photocatalysis on TiO2 and TiO2 nanotubes

T2 - Degradation of organics and drug release

AU - Schmidt-Stein, Felix

AU - Hahn, Robert

AU - Gnichwitz, Jan Frederik

AU - Song, Yan Yan

AU - Shrestha, Nabeen K.

AU - Hirsch, Andreas

AU - Schmuki, Patrik

PY - 2009/11

Y1 - 2009/11

N2 - The photocatalytic activity of titanium dioxide under X-ray radiation is of great interest for biomedical applications. In the present work we explore the use of compact TiO2 layers and TiO2 nanotubes for X-ray induced photocatalysis, in particular the degradation of organics and monolayer chain scission for drug release. The radiation was done with a conventional X-ray source and doses up to 50 × 10-3 J/kg. The results show the feasibility of X-ray catalysis on TiO2 and X-ray induced monolayer chain scission by the release of surface attached Zn-porphyrin molecules. Furthermore, a higher efficiency for anatase films and nanotubes is obtained than for amorphous morphologies.

AB - The photocatalytic activity of titanium dioxide under X-ray radiation is of great interest for biomedical applications. In the present work we explore the use of compact TiO2 layers and TiO2 nanotubes for X-ray induced photocatalysis, in particular the degradation of organics and monolayer chain scission for drug release. The radiation was done with a conventional X-ray source and doses up to 50 × 10-3 J/kg. The results show the feasibility of X-ray catalysis on TiO2 and X-ray induced monolayer chain scission by the release of surface attached Zn-porphyrin molecules. Furthermore, a higher efficiency for anatase films and nanotubes is obtained than for amorphous morphologies.

KW - Drug release

KW - Monolayer

KW - Nanotubes

KW - Organic degradation

KW - TiO

KW - X-ray irradiation

UR - https://www.scopus.com/pages/publications/70350774044

U2 - 10.1016/j.elecom.2009.08.036

DO - 10.1016/j.elecom.2009.08.036

M3 - Article

AN - SCOPUS:70350774044

SN - 1388-2481

VL - 11

SP - 2077

EP - 2080

JO - Electrochemistry Communications

JF - Electrochemistry Communications

IS - 11

ER -

X-ray induced photocatalysis on TiO₂ and TiO₂ nanotubes: Degradation of organics and drug release

Abstract

Keywords

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