Sensors and Materials
ISSN 0914-4935

Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials,
Volume 29, Number 11 (2017)

Copyright(C) MYU K.K. All Rights Reserved.
pp. 1569-1577
S&M1450
https://doi.org/10.18494/SAM.2017.1705
Published: November 24, 2017

Evaluation of Photodynamic Inactivation Efficiency Using Conventional and Decorative Light-Emitting Diode Lamps [PDF]

Shih-Chen Shi and Wen-Ke Huang

(Received April 21, 2017; Accepted August 28, 2017)

Keywords: photodynamic inactivation, photosensitizer, LED, lighting, ROS

We studied the bacterial inactivation effects of conventional and decorative light-emitting diode (LED) lamps. We used erythrosine and toluidine blue O as photosensitizers, mixed them with bacteria, painted the mixture on nutrient agar (NA), and then irradiated the NA with commercial green, red, and white LED lamps. The experimental results showed a positive photodynamic inactivation effect on Escherichia coli and Staphylococcus aureus reduction in the experiment. Thus, we demonstrated a decrease in the in vitro growth of E. coli and S. aureus by using easily available LED lamps. This experiment revealed the possibility of using conventional and decorative lighting for daily bacterial inactivation in the future.

Corresponding author: Shih-Chen Shi


Cite this article
Shih-Chen Shi and Wen-Ke Huang, Evaluation of Photodynamic Inactivation Efficiency Using Conventional and Decorative Light-Emitting Diode Lamps, Sens. Mater., Vol. 29, No. 11, 2017, p. 1569-1577.


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