Complexing Methylene Blue with Phosphorus Dendrimers to Increase Photodynamic Activity.

Evaluation of Photodynamic Therapy with 660 nm Diode Laser and Different Concentrations of Methylene Blue on Candida Albicans growth on Denture(laboratory study)

Background and Aim: Candida has an important role in denture-dependent stomatitis. The use of lasers and light-absorbing materials to act against this fungus has been suggested in some studies. In this study, the antifungal effects of 660 nm diode laser with different concentrations of methylene blue as a light absorbing agent against Candida albicans grown on dentures was investigated. Materia...

Photodynamic inactivation effect of methylene blue and toluidine blue O on ATCC Escherichia coli and clinical isolate of multidrug-resistant Escherichia coli

Photodynamic action of the red laser on Propionibacterium acnes*

BACKGROUND Photodynamic therapy is a therapeutic modality that has consolidated its activity in the photooxidation of organic matter, which arises from the activity of reactive oxygen species. OBJECTIVE To evaluate the effect of red laser 660nm with the photosensitizer methylene blue on Propionibacterium acnes in vitro. METHOD The experimental design was distributed into four groups (1 - co...

Photodynamic Therapy With Methylene Blue for Skin Ulcers Infected With Pseudomonas aeruginosa and Fusarium spp.

Photodynamic therapy (PDT) is a therapeutic modality with significant antimicrobial activity. We present 2 cases of chronic lower limb ulcers in which fungal and bacterial superinfection complicated management. PDT with methylene blue as the photosensitizer led to clinical and microbiological cure with no significant adverse effects. PDT with methylene blue is a valid option for the management ...

Photodynamic treatment of pooled coumarin plasma for external quality assessment of the prothrombin time.

AIMS To determine the conditions of photodynamic inactivation of vesicular stomatitis virus (VSV) added to pooled coumarin plasma and the effects of the photodynamic treatment on the prothrombin times and international normalised ratio (INR) in a Netherlands national external quality assessment scheme. METHODS Pooled coumarin plasma samples were illuminated with visible light in the presence ...