| Literature DB >> 33520385 |
Jeffrey C Peterson1,2,3,4, Esdras Arrieta1, Marco Ruggeri1,2, Juan D Silgado1, Keenan J Mintz5, Ernesto H Weisson3, Roger M Leblanc5, Irene Kochevar6, Fabrice Manns1,2,3, Jean-Marie Parel1,2,7,8.
Abstract
Rose bengal photodynamic antimicrobial therapy (RB-PDAT) treats corneal infection by activating rose bengal (RB) with green light to produce singlet oxygen (1O2). Singlet oxygen dosimetry can help optimize treatment parameters. We present a 1O2 dosimeter for detection of 1O2 generated during experimental RB-PDAT. The system uses a 520 nm laser and an InGaAs photoreceiver with bandpass filters to detect 1O2 luminescence during irradiation. The system was validated in RB solutions and ex vivo in human donor eyes. The results demonstrate the feasibility of 1O2 dosimetry in an experimental model of RB-PDAT in the cornea.Entities:
Year: 2020 PMID: 33520385 PMCID: PMC7818961 DOI: 10.1364/BOE.405601
Source DB: PubMed Journal: Biomed Opt Express ISSN: 2156-7085 Impact factor: 3.732