Effects of photostimulation on the catabolic process of xenobiotics.

Light biotechnology is a promising tool for enhancing recalcitrant compounds biodegradation. Xenobiotics can cause a significant impact on the quality of the results achieved by sewage treatment systems due to their recalcitrance and toxicity. The optimization of bioremediation and industrial processes, aiming to increase efficiency and income is of great value.

Photobiological effect of Laser or LED light in a thermophilic microbial consortium.

Cellulose has a highly diversified architecture and its enzymatic complexes are studied for achieving an efficient conversion and a high level of efficiency in the deconstruction of cellulolytic biomass into sugars. The aim of this investigation was to evaluate the effect of Laser or LED light in the cellulolytic activity (CMCase) and on the proliferation of the thermophilic microbial consortium used on the degradation process of a lignocellulosic biomass of green coconut shell. The irradiation protocol consisted of six Laser irradiations (λ660 ηm, 40 mW, 270 s, 13 J/cm) or LED (λ632 ± 2 ηm, 145 mW, 44 s, 13 J/cm) with 12- h time intervals in nutrient deprivation conditions.

LED antimicrobial photodynamic therapy with phenothiazinium dye against Staphylococcus aureus: An in vitro study.

The objective of this study was to evaluate, in vitro, the bactericidal effect of AmPDT on Staphylococcus aureus (ATCC 25923) using different concentrations (100, 50, 25, 12.5 and 6.25μg/mL) of phenothiazine compound combined with LED light (λ632±2nm) using varied energy densities (12, 9.

Effectiveness of antimicrobial photodynamic therapy (AmPDT) on Staphylococcus aureus using phenothiazine compound with red laser.

The aim of this study was to evaluate, in vitro, the bactericidal effect of antimicrobial photodynamic therapy (AmPDT) using phenothiazinium dyes (Toluidine Blue O and methylene blue, 1:1) using different concentrations (100, 50, 25, 12.5, and 6.25 μg/mL) associated to red laser with different energy densities (2.

Effect of laser and LED phototherapies on the healing of cutaneous wound on healthy and iron-deficient Wistar rats and their impact on fibroblastic activity during wound healing.

Iron deficiency impairs the formation of hemoglobin, red blood cells, as well the transport of oxygen. The wound healing process involves numerous functions, many of which are dependent on the presence of oxygen. Laser has been shown to improve angiogenesis, increases blood supply, cell proliferation and function.