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Singlet Oxygen in Photodynamic Therapy [PDF]

open access: yesPharmaceuticals
Photodynamic therapy (PDT) is a therapeutic modality that depends on the interaction of light, photosensitizers, and oxygen. The photon absorption and energy transfer process can lead to the Type II photochemical reaction of the photosensitizer and the ...
Shengdong Cui   +7 more
doaj   +4 more sources

Formation of singlet oxygen in addition to hydroxyl radical via the Fenton reaction [PDF]

open access: yesRedox Biology
We established an LC-MS/MS method for detecting uric acid oxidation metabolites to evaluate reactive oxygen and nitrogen species, as uric acid gives specific products.
Rino Shimizu   +4 more
doaj   +2 more sources

Singlet Oxygen Energy for Enhancing Physiological Function and Athletic Performance [PDF]

open access: yesBioengineering
A total of 75% of the oxygen humans inhale is exhaled without being utilized. To help organisms better utilize oxygen in exercise training, we designed the singlet oxygen energy generator (SOEG), a device that converts ambient air into energy-rich oxygen.
Chia-Feng Hsieh   +3 more
doaj   +2 more sources

Cytotoxic Effects of Singlet Oxygen

open access: diamondEnvironmental Health Perspectives, 1987
The toxic effects of gas-phase singlet oxygen, 1O2, on the ciliated respiratory epithelium of hamster trachea have been demonstrated. Tracheal explants treated with 1O2 showed a dose-dependent decrease in cilia beating frequency and focal ciliostasis. A statistically significant decrease in ciliary activity occurred at 1O2 concentrations as low as 154 ...
Walter C. Eisenberg   +4 more
openaire   +4 more sources

Photo-oxygenation of Amithiazone by Singlet Oxygen [PDF]

open access: green, 1992
Department of Chemistry, Sukhadia University, Udaipur-313 001 Manuscript received 24 January 1991, revised 24 January 1992, accepted 5 March 1992 Photo-oxygenation of Amithiazone by Singlet ...
C. S. CHOBISA   +3 more
openaire   +2 more sources

Correction of Multispectral Singlet Oxygen Luminescent Dosimetry (MSOLD) for Tissue Optical Properties in Photofrin-Mediated Photodynamic Therapy [PDF]

open access: yesAntioxidants
The direct detection of singlet-state oxygen (1O2) constitutes the holy grail dosimetric method for type-II photodynamic therapy (PDT), a goal that can be quantified using multispectral singlet oxygen near-infrared luminescence dosimetry (MSOLD).
Weibing Yang   +10 more
doaj   +2 more sources

Generation of singlet oxygen by porphyrin and phthalocyanine derivatives regarding the oxygen level

open access: yesJournal of Medical Science, 2022
Background. The principle of photodynamic effect is based on the combined action of photosensitiser, molecular oxygen and light, which produce various reactive oxygen species and are associated with significant cellular damage.
Martin Pola   +2 more
doaj   +1 more source

Progress in application and detection of riboflavin singlet oxygen photochemistry

open access: yesZhongguo shuxue zazhi, 2022
Photodynamic therapy (PDT), which uses photosensitizers to produce singlet oxygen to kill bacteria, was first discovered by scientists over 100 years ago and has been widely used in clinical treatment.
Yuanyuan HE   +3 more
doaj   +1 more source

Determination of singlet oxygen quenching rate and mechanism of γ-oryzanol

open access: yesHeliyon, 2021
Photooxidation is one of the causes of quality deterioration in food. An antioxidant or singlet oxygen quencher is urgently needed to prevent photooxidation. γ-Oryzanol was recognized as a naturally present antioxidant in rice bran products.
Yuli Perwita Sari   +3 more
doaj   +1 more source

NanoFN10: A High-Contrast Turn-On Fluorescence Nanoprobe for Multiphoton Singlet Oxygen Imaging

open access: yesSensors, 2023
An “off-on” fluorescent nanoprobe for near-infrared multiphoton imaging of singlet oxygen has been developed. The nanoprobe comprises a naphthoxazole fluorescent unit and a singlet-oxygen-sensitive furan derivative attached to the surface of mesoporous ...
Renzo P. Zanocco   +6 more
doaj   +1 more source

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