Control of Burn Wound Infection by Methylene Blue‐Mediated Photodynamic Treatment With Light‐Emitting Diode Array Illumination in Rats

2021 ◽  
Author(s):  
Naoto Ishiwata ◽  
Yasuyuki Tsunoi ◽  
Roma Rani Sarker ◽  
Yasue Haruyama ◽  
Satoko Kawauchi ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Wound Infection ◽  
Light Emitting Diode ◽  
Diode Array ◽  
Photodynamic Treatment ◽  
Burn Wound ◽  
Light Emitting ◽  
Array Illumination

scholarly journals In Vitro Effect of Photodynamic Therapy with Different Lights and Combined or Uncombined with Chlorhexidine on Candida spp.

Pharmaceutics ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1176
Author(s):  
Vanesa Pérez-Laguna ◽  
Yolanda Barrena-López ◽  
Yolanda Gilaberte ◽  
Antonio Rezusta
Keyword(s):  
Photodynamic Therapy ◽  
Light Emitting Diode ◽  
Antimicrobial Effect ◽  
Photodynamic Treatment ◽  
Candida Spp ◽  
Promising Alternative ◽  
Light Emitting ◽  
Colony Forming Units ◽  
Vitro Effect

Candidiasis is very common and complicated to treat in some cases due to increased resistance to antifungals. Antimicrobial photodynamic therapy (aPDT) is a promising alternative treatment. It is based on the principle that light of a specific wavelength activates a photosensitizer molecule resulting in the generation of reactive oxygen species that are able to kill pathogens. The aim here is the in vitro photoinactivation of three strains of Candida spp., Candida albicans ATCC 10231, Candida parapsilosis ATCC 22019 and Candida krusei ATCC 6258, using aPDT with different sources of irradiation and the photosensitizer methylene blue (MB), alone or in combination with chlorhexidine (CHX). Irradiation was carried out at a fluence of 18 J/cm2 with a light-emitting diode (LED) lamp emitting in red (625 nm) or a white metal halide lamp (WMH) that emits at broad-spectrum white light (420–700 nm). After the photodynamic treatment, the antimicrobial effect is evaluated by counting colony forming units (CFU). MB-aPDT produces a 6 log10 reduction in the number of CFU/100 μL of Candida spp., and the combination with CHX enhances the effect of photoinactivation (effect achieved with lower concentration of MB). Both lamps have similar efficiencies, but the WMH lamp is slightly more efficient. This work opens the doors to a possible clinical application of the combination for resistant or persistent forms of Candida infections.

Light-emitting device with regularly patterned growth of an InGaN/GaN quantum-well nanorod light-emitting diode array

2013 ◽  
Vol 38 (17) ◽  
pp. 3370 ◽  
Author(s):  
Horng-Shyang Chen ◽  
Yu-Feng Yao ◽  
Che-Hao Liao ◽  
Charng-Gan Tu ◽  
Chia-Ying Su ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diode ◽  
Diode Array ◽  
Light Emitting ◽  
Patterned Growth

A Novel Image Analysis of Light Emitting Diode Array Biostimulation Applied on Microcirculation

2018 ◽  
Author(s):  
Chuan-Tsung Su ◽  
Yi-Chia Shan ◽  
Wei Fang ◽  
Chii-Wann Lin ◽  
Ju-Hsuan Juan ◽  
...  
Keyword(s):  
Image Analysis ◽  
Light Emitting Diode ◽  
Diode Array ◽  
Light Emitting

Photoelectric Characteristics of Micro Flip-Chip AlGaInP Light Emitting Diode Array

2018 ◽  
Vol 38 (9) ◽  
pp. 0923001
Author(s):  
Ban Zhang ◽  
Liang Jingqiu ◽  
Lü Jinguang ◽  
Li Yang
Keyword(s):  
Flip Chip ◽  
Light Emitting Diode ◽  
Diode Array ◽  
Light Emitting ◽  
Photoelectric Characteristics
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