PHOTOREACTIVATION OF CLOVER YELLOW MOSAIC VIRUSPhotochemistry and Photobiology - Tập 4 Số 4 - Trang 709-711 - 1965
M. Chessin
Abstract— Clover yellow mosaic virus, in common with other plant viruses with flexuous, rod‐like particles, can be photoreactivated. At lower U.V. doses, photoreactivation is masked by an inhibitory effect on virus infection of visible light alone.
PYRIMIDINE DIMER FORMATION IN ULTRAVIOLET IRRADIATED TMV‐RNAPhotochemistry and Photobiology - Tập 6 Số 5 - Trang 309-319 - 1967
Virginia Merriam, Milton P. Gordon
Abstract— The formation of pyrimidine dimers on ultraviolet irradiation of TMV‐RNA in water is demonstrated in the region from 254 nm to 302 nm. No dimer is present in either unirradiated E. coli ribosomal RNA or TMV‐RNA. Dimer formation was also examined in TMV‐RNA irradiated in the presence of 5times10‐6 M proflavin, ...... hiện toàn bộ
TUMOR CELL SPECIFIC DARK CYTOTOXICITY OF LIGHT‐EXPOSED MEROCYANINE 540: IMPLICATIONS FOR SYSTEMIC THERAPY WITHOUT LIGHTPhotochemistry and Photobiology - Tập 52 Số 4 - Trang 831-838 - 1990
Kirpal S. Gulliya, Shazib Pervaiz, Robert M. Dowben, J. L. Matthews
Abstract— ‐Merocyanine 540 (MC540) was activated by exposure to 514 nm laser light. The light‐exposed MC540 was then mixed (in the dark) with tumor cells and normal cells to determine the antiproliferative activity. Treatment with light‐exposed MC540 resulted in 70–90% tumor cell kill from different cell lines, while 85% of the normal human mononuclear cells and 41%...... hiện toàn bộ
IMPAIRMENT OF RED CELL MEMBRANE CYTOSKELETON BY PROTOPORPHYRIN‐IX: LIGHT AND DARK EFFECTSPhotochemistry and Photobiology - Tập 47 Số 5 - Trang 689-697 - 1988
N. Dadosh, Nurith Shaklai
Abstract— Membrane cytoskeletons were separated by use of TritonX–100 from freshly isolated red cells, fixed with glutaraldehyde and their morphology was followed by scanning electron microscopy. At 37°C and pH 6.5 cytoskeletons retained cell‐like shapes for at least 2 h, but at higher pH values, they lost stability after 30 min, appearing as amorphous protein materi...... hiện toàn bộ
Photodynamic Antifungal Chemotherapy†Photochemistry and Photobiology - Tập 88 Số 3 - Trang 512-522 - 2012
Piergiacomo Calzavara‐Pinton, Mariateresa Rossi, Raffaella Sala, Marina Venturini
AbstractThe growing resistance against antifungal drugs has renewed the search for alternative treatment modalities, and antimicrobial photodynamic therapy (PDT) seems to be a potential candidate. Preliminary findings have demonstrated that dermatophytes and yeasts can be effectively sensitized in vitro and in vivo... hiện toàn bộ
FLUORESCENCE SPECTRA OF CHLOROPHYLL‐a AND CHLOROPHYLL‐b FROM SITE SELECTION SPECTROSCOPYPhotochemistry and Photobiology - Tập 26 Số 2 - Trang 109-113 - 1977
J. Fünfschilling, D. F. Williams
Abstract— …Highly resolved fluorescence spectra of chlorophyll‐a and ‐b have been measured in ethanol and methyltetrahydrofuran glasses at ˜4K. The vibrational frequencies measured are independent of solvent and were highly reproducible, ±1cm‐1 or less. A possible use of this experimental tech...