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Combination of Light Emitting Diode at 375 nm and Photo-reactive TiO2 Layer Prepared by Electrostatic Spraying for Sterilization
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 Title & Authors
Combination of Light Emitting Diode at 375 nm and Photo-reactive TiO2 Layer Prepared by Electrostatic Spraying for Sterilization
Hwang, Kyu-Seog; Jeon, Young-Sun; Choi, Tae-Il; Hwangbo, Seung;
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The objective of this work was to increase the efficiency of ultraviolet-light emitting diodes at 375 nm for sterilization. Since had antibacterial properties, which were attributed to the appearance of hydroxyl radicals and superoxide radical anions on the surface species under ultra violet radiation at about 387 nm, photo-reactive layers such as Ag-doped were coated on aluminum substrates by electrostatic spraying. Crystallinity and surface morphology of the coating layer were examined by X-ray diffraction scan and field emission-scanning electron microscope, respectively. In an antibacterial test, we observed above 99% reduction of Escherichia coli populations on 3 or 5 mol% Ag-doped layers after irradiation for 2 hrs at 375 nm, while very low inactivation on bare aluminum substrates occurred after irradiation as the same condition.
Ag-doped ;Sterilization;Light emitting diode;Electrostatic spraying;
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Application of ultraviolet light-emitting diodes (UV-LEDs) for water disinfection: A review, Water Research, 2016, 94, 341  crossref(new windwow)
L. J. Rose, R. B. Simmons, S. A. Crow and D. G. Ahearn, "Volatile organic compounds associated with microbial growth in automobile air conditioning systems", Current Microbiology, Vol. 41, pp. 206 - 209, 2000. crossref(new window)

R. Sinha and D. Häder, "UV-induced DNA damage and repair: a review", Photochemical and Photobiological Science, Vol. 1, pp. 225-235, 2002. crossref(new window)

A. Hamamoto, M. Mori, A. Tajahashi, M. Nakano, N. Wakikawa, M. Akutagawa, T. Ikehara, Y. Nakaya and Y. Kinouchi, "New water disinfection system using UVA light-emitting diodes", Journal of Applied Microbiology, Vol. 103, pp. 2291-2298, 2007. crossref(new window)

M. Jensen, "Inactivation of air bone viruses by ultraviolet irradiation", Applied Microbiology, Vol. 12, pp. 418-420, 1964.

J. Peccia, H. M. Werth, S. Miller and M. Hemandez, "Effects of relative humidity on ultraviolet induced inactivation of air bone bacteria", Aerosol Science and Technology, Vol. 35, pp. 728-740, 2001. crossref(new window)

M. Mori, A. Hamamoto, A. Tajahashi, M. Nakano, N. Wakikawa, S. Tachibana, T. Ikehara, Y. Nakaya, M. Akutagawa and Y. Kinouchi, "Development of a new water sterilization device with a 365 nm UV-LED", Medical and Biological Engineering and Computing, Vol. 35, pp. 1237-1241, 2007.

B. H. Kim, Y. S. Jeon, J. H. Jeong, J. H. An, K. O. Jeon and K. S. Hwang, "Photoreactive titanium oxide layer prepared from a titanium naphthenate", Current Applied Physics, Vol. 7, pp. 108-111, 2007. crossref(new window)

K. S. Hwang, J. H. Jeong, J. H. Ahn and B. H. Kim, "Hydrophilic/hydrophobic conversion of Ni-doped $TiO_{2}$ thin films on glass substrates", Ceramics International, Vol. 32, pp. 935-937, 2006. crossref(new window)

B. H. Kim, J. H. Jeong, Y. S. Jeon, K. O. Jeon and K. S. Hwang, "Hydroxyapatite layers prepared by solgel assisted electrostatic spray deposition", Ceramics International, Vol. 33, pp. 119-122, 2007. crossref(new window)

S. -Q. Sun, B. Sun, W. Zhang and D. Wang., "Preparation and antibacterial activity of Ag-$TiO_{2}$ composite film by liquid phase deposition (LPD) method", Bulletin of Materials Science, Vol. 31, pp. 61-66, 2008. crossref(new window)

L. Zang, W. Macyk, C. Lange, W. F. Maier, C. Antonius and D. Meissner, "Visible light detoxification and charge generation by transition metal chloride modified titania", Chemistry-A European Journal, Vol. 6, pp. 379-384, 2003.

M. D. Blake, P. Maness, Z. Huang and J. E. Huang, "Application of the photocatalytic chemistry of titanium dioxide to disinfection and the killing of cancer cells", Separation and Purification Methods, Vol. 28, pp. 1-50, 1999. crossref(new window)

Z. Lu, L. Zhou, Z. Zhang, W. Shi, Z. Xie, H. Xie, D. Pang and P. Shen, "Cell damage induced by photocatalysis of $TiO_{2}$ thin films", Langmuir, Vol. 19, pp. 8765-8768, 2003. crossref(new window)

K. Hashimoto, H. Irie and A. Fujishima, "$TiO_{2}$ Photocatalysis: A historical overview and future prospects", Japanese Journal of Applied Physics, Vol. 44, pp. 8269-8285, 2005. crossref(new window)

Y. J. Kim, T. N. Kim, S. B. Kim, S. B. Cho, K. J. Cho and T. H. Lee, "Antimicrobial effect of metal ions substitution to HAP and zeolite", Korean Journal of Materials Research, Vol. 11, pp. 120-125, 2001.

C. Chatterley and K. Linden, "Demonstration and evaluation of germicidal UV-LEDs for point-of-use water disinfection", Journal of Water and Health, Vol. 8, pp. 417-430, 2010. crossref(new window)

J. Y. Kim, C. P. Park and J. Yoon, "Developing a testing method for antimicrobial efficacy on $TiO_{2}$ photocatalytic products", Environmental Engineering Research, Vol. 13, pp. 136-140, 2008. crossref(new window)

G. Fu, P. S. Vary and C. Lin, "Anatase $TiO_{2}$ nanocomposites for antimicrobial coatings", Journal of Physical Chemistry B, Vol. 109, pp. 8889-8898, 2005. crossref(new window)