2008
DOI: 10.1117/12.763059
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The irradiation parameters investigation of photodynamic therapy on yeast cells

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Cited by 9 publications
(7 citation statements)
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“…Another group, 54 using a porphyrin-derivative photosensitizer, reported a light dose-dependent 46 log 10 reduction in viable count of P. gingivalis. Prates et al 55 were able to achieve 2-3 log 10 reductions from control in planktonic cultures of A. actinomycetemcomitans with malachite green and energy doses of 6-9 J cm À2 . Another group 56 evaluated the effectiveness of aPDT in vitro on biofilms comprised primarily of the oral bacteria Actinomyces israelii, F. nucleatum, P. gingivalis and Prevotella intermedia.…”
Section: Apdt and Periodontal Disease -In Vitro Studiesmentioning
confidence: 98%
“…Another group, 54 using a porphyrin-derivative photosensitizer, reported a light dose-dependent 46 log 10 reduction in viable count of P. gingivalis. Prates et al 55 were able to achieve 2-3 log 10 reductions from control in planktonic cultures of A. actinomycetemcomitans with malachite green and energy doses of 6-9 J cm À2 . Another group 56 evaluated the effectiveness of aPDT in vitro on biofilms comprised primarily of the oral bacteria Actinomyces israelii, F. nucleatum, P. gingivalis and Prevotella intermedia.…”
Section: Apdt and Periodontal Disease -In Vitro Studiesmentioning
confidence: 98%
“…Aliquots of 1 mL of yeast suspension with PS were putted in a 24-well plate and subsequently irradiated with light, resulting fluence-rates of 30mW/cm² and 40mW/cm² (table 1). Aliquots were collected before and during the irradiation, and serially diluted in PBS to generate dilutions of 10 -1 to 10 -5 times the original concentration [30]. Ten micro liters aliquots of each dilution were streaked onto a sabouraud plaque in triplicate and incubated for 48h at 30°C to allow colony formation [31].…”
Section: Photodynamic Therapy Studies and Colony-forming Units (Cfu) mentioning
confidence: 99%
“…Alguns estudos descrevem a difícil penetração e difusão de fármacos no biofilme, com redução de concentração de até 80%, relatando ser este um dos fatores de resistência 29,30 . A busca de novas modalidades terapêuticas é imperativa, e dentre estas novas propostas encontra-se a terapia fotodinâmica antimicrobiana para redução de C. albicans 15…”
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