Abstract
The use of titanium dioxide (TiO2) in photodynamic therapy for the treatment of cancer cells has been proposed following studies of cultured cancer cells. In this work, an ordered channel array of anodic titanium oxide (ATO) was fabricated by anodizing titanium foil. The ATO layer of nanotubes with diameters of 100 nm was made in NH4F electrolyte by anodization. The photocatalytic effect of ATO was examined on various culture media by ultraviolet A (UV-A) (366 nm) irradiation. After UV-A irradiation of the ATO layer, redox potential of Tris-HCl buffer (pH 7.5) and dilute acrylamide solution increased instantaneously. The redox potential of the serum-containing RPMI1640 medium also increased dramatically, while that of serum-containing MEM and DMEM media increased slightly. The UVA-induced high redox potential was correlated with the greater ability to break down plasmid DNA strands. These phenomena suggest that a culture medium, such as RPMI1640, with a greater ability to produce free radical may be associated with a stronger photocatalytic effect of ATO on cultured cancer cells reported previously.
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References
J. Agnieszka, W.G. Agnieszka, K. Urbanska, G. Stochel, W. Macyk, Free Radic. Biol. Med. 92, 54–58 (2008)
H.J. Oha, J.H. Lee, Y.J. Kim, S.J. Suh, J.H. Lee, C.S. Chi, Appl. Catal. B 84, 142–147 (2008)
S.U.M. Khan, M.A. Shahry, W.B. Ingler Jr., Science 297, 2243 (2002)
R. Hahn, A. Ghicov, J. Salonen, V.P. Lehto, P. Schmuki, Nanotechnology 18, 105604 (2007)
S.K. Mohapatra, N. Kondamudi, S. Banerjee, M. Misra, Langmuir 24, 11276–11281 (2008)
Y. Kubota, C. Niwa, T. Ohnuma, Y. Ohko, T. Tatsuma, T. Mori, A. Fujishima, J. Photochem. Photobil. A 141, 225–230 (2001)
K. Hirakawa, M. Mori, M. Yoshida, S. Oikawa, S. Kawanishi, Free Radic. Res. 38, 439–447 (2004)
A.A. Ajmera, S.B. Sawant, V.G. Pangarkar, Chem. Eng. Technol. 25, 173–180 (2002)
J.W. Seo, H. Chung, M.Y. Kim, J. Lee, I. h. Choi, J. Cheon, Small 3, 850–853 (2007)
B.W. Henderson, C. Daroqui, E. Tracy, L.A. Vaughan, G.M. Loewen, M.T. Cooper, H. Baumann, Clin. Cancer Res. 13, 3156–3163 (2007)
K. Fuller, B. Kirstein, T.J. Chambers, Endocrinology 147, 1979–1985 (2009)
A. Lewinska, M. Wnuk, E. Slota, G. Bartosz, Clin. Exp. Pharmacol. Physiol. 34, 781–786 (2007)
H. Zhao, W.Y. Young, Q. Yan, R. Li, J. Cao, Q. Wang, X. Li, J.L. Peters, D. Han, M.X. Guan, Nucleic Acids Res. 33, 1132–1139 (2005)
I.R. Freshney, Culture of Animal Cells: A Manual of Basic Technique (Alan R. Liss, New York, 1983)
T.G. Cooper, The Tools of Biochemistry (Wiley, New York, 1977)
D. Fang, K. Huang, S. Liu, J. Huang, J. Braz. Chem. Soc. 19, 1059–1064 (2008)
Y. Yang, X. Wang, L. Li, J. Am. Ceram. Soc. 91, 3086–3089 (2008)
H. Saki, E. Ito, R. Cai, T. Yoshioka, Y. Kubota, K. Hashimoto, A. Fujishima, Biochim. Biophys. Acta 1200, 259–265 (1994)
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Yu, CK., Hu, KH., Wang, SH. et al. Photocatalytic effect of anodic titanium oxide nanotubes on various cell culture media. Appl. Phys. A 102, 271–274 (2011). https://doi.org/10.1007/s00339-010-5968-6
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DOI: https://doi.org/10.1007/s00339-010-5968-6