Results 241 to 250 of about 587,022 (279)

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
openaire   +2 more sources

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
openaire   +2 more sources

Porous protoporphyrin IX-embedded cellulose diacetate electrospun microfibers in antimicrobial photodynamic inactivation.

Materials Science and Engineering C: Materials for Biological Applications, 2021
Motivated by the need for self-disinfecting materials that can be used to reduce the surface transmission of harmful microbes to healthy hosts, here we prepared a photodynamic antimicrobial membrane comprised of electrospun cellulose diacetate (CA ...
Tingting Wang, H. Ke, Shiping Chen, Jian Wang, Wushi Yang, Xiuming Cao, Jingyan Liu, Q. Wei, R. Ghiladi, Qingqing Wang   +9 more
semanticscholar   +1 more source

Photodynamic Inactivation of the Dermatophyte Trichophyton rubrum¶

Photochemistry and Photobiology, 2003
Dermatophytes are fungi that can cause infections (known as tinea) of the skin, hair and nails because of their ability to use keratin. Superficial mycoses are probably the most prevalent of infectious diseases worldwide. One of the most distinct limitations of the current therapeutic options is the recurrence of the infection and duration of treatment.
Threes G M, Smijs, Hans J, Schuitmaker
openaire   +2 more sources

The bystander effect in photodynamic inactivation of cells

Biochimica et Biophysica Acta (BBA) - General Subjects, 2000
Treatment of MDCK II cells with the lipophilic photosensitizer tetra(3-hydroxyphenyl)porphyrin and light was found to induce a rapid apoptotic response in a large fraction of the cells. Furthermore, the distribution of apoptotic cells in microcolonies of eight cells was found to be different from the binomial distribution, indicating that the cells are
J, Dahle, S, Bagdonas, O, Kaalhus, G, Olsen, H B, Steen, J, Moan   +5 more
openaire   +2 more sources

Photodynamic Inactivation of Herpes Simplex Keratitis

Archives of Ophthalmology, 1974
Bilateral herpes simplex keratitis was induced in rabbit corneas. The infected corneas were treated with either neutral red dye followed by exposure to fluorescent light or with idoxuridine ointment. Dye-light treatment produced a faster cure rate than idoxuridine.
C S, Tara, J A, Stanley, L S, Kucera, S, Hollis   +3 more
openaire   +2 more sources

Light sources for photodynamic inactivation of bacteria

Lasers in Medical Science, 2008
Bacteria have an important role in human and animal morbidity, and a great number of them have developed antibiotic resistance. In the past recent years a new way of dealing with this problem has been studied: photodynamic inactivation. This method is based on administration of a photosensitizing substance that fixes itself in the bacterial cell ...
Mihaela Antonina, Calin, S V, Parasca
openaire   +2 more sources

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
openaire   +2 more sources

Fullerene Derivatives in Photodynamic Inactivation of Microorganisms

2017
Fullerene derivatives are accepted as nanoparticles with several potential biomedical applications. The combination of visible light absorption and a long lifetime of triplet excited state allow fullerenes to act as efficient photosensitizers.
Spesia, Mariana Belen, Milanesio, María Elisa, Durantini, Edgardo Néstor   +2 more
openaire   +2 more sources

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 ...
openaire   +2 more sources