Photochemistry and Photobiology

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Photodynamic Inactivation of Conidia of the Fungi Metarhizium anisopliae and Aspergillus nidulans with Methylene Blue and Toluidine Blue
Photochemistry and Photobiology - Tập 86 Số 3 - Trang 653-661 - 2010
Fernanda Pereira Gonzales, Sérgio H. da Silva, Donald W. Roberts, Gilberto Úbida Leite Braga
AbstractAntimicrobial photodynamic treatment (PDT) is a promising method that can be used to control localized mycoses or kill fungi in the environment. A major objective of the current study was to compare the conidial photosensitization of two fungal species (Metarhizium anisopliae and Aspergillus nidulans) wi...... hiện toàn bộ
THE USE OF EXOGENOUS FLUORESCENT PROBES FOR TEMPERATURE MEASUREMENTS IN SINGLE LIVING CELLS
Photochemistry and Photobiology - Tập 62 Số 3 - Trang 416-425 - 1995
Curtis F. Chapman, Y. Liu, G. J. Sonek, Bruce J. Tromberg
Abstract—The fluorescent membrane probes 7‐nitrobenz‐2‐oxa‐1,3‐diazo1‐4‐y1 (NBD) and 6‐dodeca‐noy1‐2‐dimethylamino‐naphthalene (laurdan) have been studied for use as optical thermometers in living cells. The thermal sensitivity of NBD is primarily a consequence of rapid, heat‐induced electronic changes, which increase the observed fluorescence decay rate. As a resu...... hiện toàn bộ
PHOTOREDUCTION OF NAD TO NADH IN SEMICONDUCTOR DISPERSIONS
Photochemistry and Photobiology - Tập 39 Số 5 - Trang 609-612 - 1984
Pierre Cuendet, Michaël Grätzel
Abstract— Band gap illumination of TiO2 (anatase) dispersions in weakly alkaline solutions of nicotinamide‐adenine‐dinucleotide (NAD+) leads in the presence of rhodium trisbipyridyl complex [Rh(bipy)3+3], to continuous generation of biologically active cofactor NADH. Effects of pH, NA...... hiện toàn bộ
INHERITANCE OF PHOTOREACTIVATING ENZYME DEFICIENCIES IN HUMAN CELLS
Photochemistry and Photobiology - Tập 24 Số 5 - Trang 449-452 - 1976
Betsy M. Sutherland, Rowena Oliver
Abstract— Cells from patients with xeroderma pigmentosum contain lowered levels of photoreactivating enzyme. We have examined the photoreactivating enzyme levels in cells from members of a family with three xeroderma children, one normal child and normal parents; the enzyme levels are consistent with a simple pattern of inheritance in which individuals with the norma...... hiện toàn bộ
pH‐DEPENDENCE OF RHODAMINE B SEMIQUINONE DISMUTATION RATE IN AQUEOUS ALCOHOLIC SOLUTION
Photochemistry and Photobiology - Tập 6 Số 1 - Trang 83-89 - 1967
B. Stevens, R. R. Sharpe, W. S. W. Bingham
Abstract— A single transient species is observed in absorption following the flash irradiation of dilute deoxygenated aqueous alcoholic solutions of rhodamine B in hte pH range 5.5–7.0 The second‐order decay constant for this semiquinone radical is an approximate linear function of the prevailing hydrogen ion concentration, the transient persisting for a period of fr...... hiện toàn bộ
A NOTE ON THE THERMODYNAMICS OF ENERGY CONVERSION IN PLANTS*
Photochemistry and Photobiology - Tập 26 Số 3 - Trang 313-314 - 1977
P. T. Landsberg
THERMODYNAMICS OF THE PRIMARY REACTIONS OF PHOTOSYNTHESIS
Photochemistry and Photobiology - Tập 28 Số 3 - Trang 389-393 - 1978
William W. Parson
Abstract. It appears to be widely believed that fundamental thermodynamic limitations prevent the products of the primary electron transfer reactions of photosynthesis from exceeding the reactants in energy by more than about 0.7 hv0 where v0 is the frequency of the lowes...... hiện toàn bộ
PHOTOPEROXIDATION OF LENS LIPIDS: PREVENTION BY VITAMIN E
Photochemistry and Photobiology - Tập 36 Số 6 - Trang 623-626 - 1982
Shambhu D. Varma, Natalie A. Beachy, Richard D. Richards
Abstract— Light of visible frequency was observed to initiate peroxidative degradation of lipids of rat lenses when the latter were maintained in organ culture. The extent of degradation was monitored by measurement of malanaldehyde. This photodegradative process, which we believe is triggered by light catalyzed generation of superoxide and its subsequent transformat...... hiện toàn bộ
PREVENTION OF PHOTOREACTIVATION OF TOBACCO MOSAIC VIRUS–RIBONUCLEIC ACID BY RECONSTITUTION*
Photochemistry and Photobiology - Tập 6 Số 5 - Trang 303-308 - 1967
Gary D. Small, Milton P. Gordon
Abstract— The photoreactivation of TMV–RNA‡ irradiated with either 253–7 mμ or 302 mμ light can be prevented by reconstitution of the virus from TMV–protein and the ultraviolet irradiated RNA. The prevention of photoreactivation by reconstitution is not irreversible as the RNA can be extracted from the reconstituted virus and is still capable of undergoing photoreact...
A KINETIC ISOTOPE EFFECT IN THE PHOTOREACTIVATION OF U.V.‐INACTIVATED TOBACCO MOSAIC VIRUS RNA*
Photochemistry and Photobiology - Tập 9 Số 3 - Trang 243-246 - 1969
N. A. Evans, Angus McLaren
Abstract— Inactivation of tobacco mosaic virus RNA (TMV‐RNA) by u.v. radiation is slower in D2O than in H2O, and TMV‐RNA which has been inactivated in D2O is photoreactivated faster (on Pinto bean) than TMV‐RNA which has been inactivated in H2O. The maximum amount of photoreactivation...... hiện toàn bộ
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