Results 231 to 240 of about 17,303 (261)

Photodynamic Inactivation in Experimental Herpetic Keratitis

Archives of Ophthalmology, 1975
The effect of photodynamic inactivation on experimental herpes simplex keratitis in rabbits was investigated using neutral red as a photosensitizing dye followed by exposure to light at 425nm. Combined dye application and light exposure early in the disease (two days following infection) reduced to a minimal extent the severity and duration of the ...
M, Lahav, D, Dueker, P N, Bhatt, D M, Albert   +3 more
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PHOTODYNAMIC INACTIVATION OF LYSOZYME BY EOSIN

Photochemistry and Photobiology, 1973
Abstract— It has been demonstrated that singlet oxygen is the major oxidizing entity in the photo‐dynamic inactivation of hen egg white lysozyme by eosin, using D2O to enhance the solvent‐induced decay lifetime, and azide ion as a specific scavenger.
A G, Kepka, L I, Grossweiner
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Photodynamic inactivation of simian immunodeficiency virus

Journal of Virological Methods, 1989
A photodynamic flow system employing a dihematoporphyrin ether (DHE) was tested for its ability to inactivate the in vitro infectivity of simian immunodeficiency virus (SICMac) at 630 +/- 5 nm with a light fluence of 5 J/cm2. Cell-free SIVMac was inactivated by photoactivated hematoporphyrin derivative in a dose-dependent fashion.
T C, Chanh, J S, Allan, J L, Matthews, F, Sogandares-Bernal, M M, Judy, H, Skiles, J, Leveson, A, Marengo-Rowe, J T, Newman   +8 more
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PHOTODYNAMIC INACTIVATION OF CHINESE HAMSTER CELLS

Photochemistry and Photobiology, 1983
Abstract— Visible light exposures have been shown to kill acriflavine bound Chinese hamster cells. Such killing was enhanced when (a) dye was present in the medium during irradiation and (b) the pH of the medium was 8.5, instead of the normal 7.5 during the exposure.
T, Ganguly, S B, Bhattacharjee
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Dye‐sensitized photodynamic inactivation of cells

Medical Physics, 1981
Living cells may be modified in diverse ways by the combined action of visible light and photosensitizing molecules. The effects appear most frequently as disruptions of subcellular structure, changes in surface membrane function or inhibition of mitotic ability. This review concentrates on the four most thoroughly studied cell types—yeast cells, nerve
J P, Pooler, D P, Valenzeno
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Buckminsterfullerene and photodynamic inactivation of viruses

Reviews in Medical Virology, 1998
The development of new virus inactivation procedures has become an area of growing interest mainly due to increased demands concerning the safety of biological products. Photochemical processes represent the most promising methods for the future to inactivate viruses. In these methods, dyes are the most widely used photosensitising reagents.
, Käsermann, , Kempf
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Photodynamic Inactivation of Infectious Nucleic Acid

Science, 1960
Tobacco mosaic virus-infectious nucleic acid causes a color shift when combined with acridine orange, methylene blue, and safranine. A high concentration of acridine orange inactivates infectious nucleic acid even in darkness, while a mixture of nucleic acid with a low concentration of the dye must be exposed to visible light prior to inoculation for ...
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Porphyrinoid photosensitizers mediated photodynamic inactivation against bacteria

European Journal of Medicinal Chemistry, 2019
The multi-drug resistant bacteria have become a serious problem complicating therapies to such a degree that often the term "post-antibiotic era" is applied to describe the situation. The infections with methicillin-resistant S. aureus, vancomycin-resistant E. faecium, third generation cephalosporin-resistant E.
Lukasz Sobotta, Paulina Skupin-Mrugalska, Jaroslaw Piskorz, Jadwiga Mielcarek   +3 more
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Photodynamic Inactivation of Infectious Agents

Journal of the Environmental Engineering Division, 1977
The photodynamic inactivation of poliovirus by use of the photoreactive dye methylene blue at pH 10 and monochromatic lights was investigated on a continuous flow basis. The photodynamic inactivation process was effective for virus inactivation in clarified wastewater and requires various unit operations that are inherent to both the tertiary treatment
M. Floyd Hobbs, Jean S. Lennon, Joseph L. Melnick, Craig Wallis, Charles P. Gerba   +4 more
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Photodynamic inactivation and its repair in mycoplasmas

Biochimica et Biophysica Acta (BBA) - General Subjects, 1978
Photodynamic inactivation is the loss in viability observed when organic dye-treated cells are exposed to visible light and molecular oxygen. The photodynamic inactivation of mycoplasmas, the smallest free living cells, has been studied. Depending on the extent of inactivation in Acholeplasma laidlawii, photodynamic induced damage can be repaired if ...
U, Chaudhuri, J, Das, J, Maniloff
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