The use of wavelength-selective plastic cladding materials in horticulture: understanding of crop and fungal responses through the assessment of biological spectral weighting functions.

abstract：:A novel antibody-fluorescence method has been developed to elucidate the chromophore topography in phytochrome as it undergoes a photochromic transformation. Förster energy transfer from N-terminal bound, fluorescently labeled Oat-25 Fab antibody fragments to the phytochrome chromophore was measured. The results sugge...

journal_title：Photochemistry and photobiology

authors： Farrens DL,Cordonnier MM,Pratt LH,Song PS

更新日期：1992-11-01 00:00:00

abstract：:This paper analyzes the influence of infrared radiation (IR) on regeneration, after autotomy of limb buds of Neohelice granulata and consequently the time molt. Eyestalks were ablated to synchronize the start of molt. Afterward, animals were autotomized of five pereopods and divided into control and irradiated groups....

journal_title：Photochemistry and photobiology

authors： Gonzalez VC,Lena AB,Espindola WA,de Souza Votto AP,Jorge MB,de Moraes Vaz Batista Filgueira D,Bianchini A,Sérgio Varela Júnior A,Nery LE,Trindade GS

更新日期：2009-09-01 00:00:00

abstract：:We performed in situ experiments during the austral summer of 1998 to quantify the mortality of the fresh-water copepod Boeckella gracilipes as a function of the UV dose. The copepods were exposed to solar radiation at the water-surface for approximately 24-34 h. Long-pass cut-off filters (Schott) were used in the exp...

journal_title：Photochemistry and photobiology

authors： Tartarotti B,Cravero W,Zagarese HE

更新日期：2000-09-01 00:00:00

abstract：:Biophysical and photobiological properties of a group of bacteriochlorins were compared with efficacy of these products for photodynamic therapy of murine tumors. Predictive factors for selective photosensitization in vivo include affinity binding to lipoproteins greater than albumin, extinction coefficient at the wav...

journal_title：Photochemistry and photobiology

authors： Kessel D,Smith KM,Pandey RK,Shiau FY,Henderson B

更新日期：1993-08-01 00:00:00

abstract：:Patients infected with human immunodeficiency virus (HIV) have a high prevalence of UV radiation-responsive skin diseases including psoriasis, pruritus, eosinophilic folliculitis and eczemas. On the other hand, UV has been shown to suppress T cell-mediated immune responses and to induce activation and replication of H...

journal_title：Photochemistry and photobiology

authors： Adams ML,Houpt KR,Cruz PD Jr

更新日期：1996-08-01 00:00:00

abstract：:We report the synthesis of twelve indole derivatives bearing nitro or amide groups via Fischer indole methodology followed by reduction/acetylation and amidation reactions. After thorough characterization, these indoles were subjected to a number of studies in order to evaluate their bioactive potential as photosynthe...

journal_title：Photochemistry and photobiology

authors： de Souza JM,Fazolo BR,Lacerda JWF,Moura MS,Dos Santos ACR,de Vasconcelos LG,de Sousa Junior PT,Dall'Oglio EL,Ali A,Sampaio OM,Vieira LCC

更新日期：2020-11-01 00:00:00

abstract：:The role of water molecules in spectral tuning of proteins has been left largely unexplored. This topic is important because changing hydrogen bond patterns during the activation process may lead to spectral shifts which can be of diagnostic value for the underlying structures. Arguments put forward in this article ar...

journal_title：Photochemistry and photobiology

authors： Sekharan S

更新日期：2009-03-01 00:00:00

abstract：:The fluorescent pH probe carboxy-seminaphtorhodafluor-1 (C-Snarf-1) has been used for laser microspectro-fluorometric assays of intracellular pH in 3T3 mouse fibroblasts treated with hypocrellin A. These results are compared to those previously obtained with the structurally related hydroxylated polycyclic quinone, hy...

journal_title：Photochemistry and photobiology

authors： Chaloupka R,Sureau F,Kocisova E,Petrich JW

更新日期：1998-07-01 00:00:00

abstract：:Previous studies with methylene blue (MB) in red cell suspensions have demonstrated that extracellular, but not intracellular, virus can be readily photoinactivated. To test if the resistance of intracellular virus to inactivation is related to the permanent positive charge of the phenothiazine, a series of uncharged ...

journal_title：Photochemistry and photobiology

authors： Skripchenko A,Robinette D,Wagner SJ

更新日期：1997-03-01 00:00:00

abstract：:Cellular autofluorescence spectra were monitored in a single-beam gradient force optical trap ("optical tweezers") in order to probe the physiological effects of near infrared and UVA (320-400 nm) microirradiation. Prior to trapping, Chinese hamster ovary cells exhibited weak UVA-excited autofluorescence with maxima a...

journal_title：Photochemistry and photobiology

authors： König K,Liu Y,Sonek GJ,Berns MW,Tromberg BJ

更新日期：1995-11-01 00:00:00

abstract：:Solar light leads to thymine dimers that are mutagenic and primary cause of skin cancer. Here, we report absorption and synchrotron radiation circular dichroism (CD) spectra of Tn single strands with different number n of bases (n = 2-7, 10, 11) recorded after various 254 nm irradiation times. From a principal compone...

journal_title：Photochemistry and photobiology

authors： Baggesen LM,Hoffmann SV,Nielsen SB

更新日期：2014-01-01 00:00:00

abstract：:Cold-inducible RNA binding protein (CIRP) is a stress-inducible protein, which could be activated by various cellular stresses, such as hypothermia, hypoxia and UV irradiation. Our previous study indicated that UVB radiation (3 mJ cm-2 ) induces CIRP expression, which promotes keratinocytes growth, survival and eventu...

journal_title：Photochemistry and photobiology

authors： Sun W,Liao Y,Yi Q,Wu S,Tang L,Tong L

更新日期：2018-11-01 00:00:00

abstract：:The phototoxic anti-hyperlipoproteinemic drug fenofibrate was found to be photolabile under aerobic and anaerobic conditions. Irradiation under argon of a methanol solution of this drug produced the photoproducts isopropyl 4-(1-[4-chlorophenyl]-1,2-dihydroxy)ethylphenoxyisobutyrate, 1,2-bis(4-chlorophenyl)-1,2bis (4-[...

journal_title：Photochemistry and photobiology

authors： Vargas F,Canudas N,Miranda MA,Boscá F

更新日期：1993-10-01 00:00:00

abstract：:It has been proposed that photodegradation of folates may be the reason for the pigmentation of races living under high fluence rates of ultraviolet radiation. The photodegradation of folic acid (FA) induced by ultraviolet-A (UV-A) radiation, in solution and in the presence of human serum albumin (HSA), was studied wi...

journal_title：Photochemistry and photobiology

authors： Vorobey P,Steindal AE,Off MK,Vorobey A,Moan J

更新日期：2006-05-01 00:00:00

abstract：:We have studied the photophysics and rotational diffusion of hydrophilic solute 7-(N, N'-diethylamino)coumarin-3-carboxylic acid (7-DCCA) in a room temperature ionic liquid methyltrioctylammonium bis(trifluoromethylsulfonyl) imide ([N1888 ][NTf2 ]). Comparison of activation energies of viscous flow and nonradiative de...

journal_title：Photochemistry and photobiology

authors： Chatterjee A,Maity B,Ahmed SA,Seth D

更新日期：2015-09-01 00:00:00

abstract：:Photoactive materials based on dye molecules incorporated into thin films or bulk solids are useful for applications as photosensitization, photocatalysis, solar cell sensitization and fluorescent labeling, among others. In most cases, high concentrations of dyes are desirable to maximize light absorption. Under these...

journal_title：Photochemistry and photobiology

authors： Rodríguez HB,San Román E

更新日期：2013-11-01 00:00:00

abstract：:Generating accurate population-specific public health messages regarding sun protection requires knowledge about seasonal variation in sun exposure in different environments. To address this issue for a subtropical area of Australia, we used polysulphone badges to measure UVR for the township of Nambour (26 degrees la...

journal_title：Photochemistry and photobiology

authors： Neale RE,Hamilton AR,Janda M,Gies P,Green AC

更新日期：2010-03-01 00:00:00

abstract：:Under physiological conditions B-form DNA is an exceedingly stable structure. However, experimental evidences obtained through nuclear magnetic resonance and fluorescence anisotropy suggest that the structure of the double helix fluctuates substantially. We describe photoacoustic phase modulation frequency measurement...

journal_title：Photochemistry and photobiology

authors： Bugs MR,Cornélio ML

更新日期：2001-10-01 00:00:00

abstract：:Analysis of phosphorescence lifetimes using the Stern-Volmer equation is a reliable means of determining quencher concentration for a uniform sample. Methods of analysis for heterogeneous systems are based on the assumption that the excitation is produced by a momentary flash. This condition is an idealization because...

journal_title：Photochemistry and photobiology

authors： Golub AS,Popel AS,Zheng L,Pittman RN

更新日期：1999-06-01 00:00:00

abstract：:The efficacy of photodynamic therapy (PDT) depends upon the amount of photosensitizer accumulated in the malignant tissues. Radachlorin is a popular photosensitizer used in photodynamic therapy to treat various types of cancer. In this study, we have studied the main organelles responsible for the accumulation of rada...

journal_title：Photochemistry and photobiology

authors： Biswas R,Moon JH,Ahn JC

更新日期：2014-09-01 00:00:00

abstract：:All-trans retinoic acid (ATRA) plays essential roles in the normal biological processes and the treatment of cancer and skin diseases. Considering its photosensitive property, many studies have been focused on the photochemistry of ATRA. In this study, we investigated the transient phenomena in the laser flash photoly...

journal_title：Photochemistry and photobiology

authors： Li K,Wang M,Wang T,Sun D,Zhu R,Sun X,Wu X,Wang SL

更新日期：2013-09-01 00:00:00

abstract：:Photolysis of ester 1 in argon-saturated methanol and acetonitrile does not produce any product, whereas irradiation of 1 in oxygen-saturated methanol yields peroxide 2. Laser flash photolysis studies demonstrate that 1 undergoes intramolecular H atom abstraction to form biradical 3 (λmax ~340 nm), which intersystem c...

journal_title：Photochemistry and photobiology

authors： Das A,Lao EA,Gudmundsdottir AD

更新日期：2016-05-01 00:00:00

abstract：:We have used the complex of antigen with class II major histocompatibility proteins (Ia) in membrane-bound form to target a phototoxic compound to antigen-specific T cell hybridomas in vitro. The iodoacetamidyl ester of phototoxic pyrene was bound covalently to antigen-presenting cells (APC), and protein antigens were...

journal_title：Photochemistry and photobiology

authors： Chang NH,Rayner DC,Boggs JM

更新日期：1995-05-01 00:00:00

abstract：:As a new class of sequence-specific regulators of gene expression, the microRNAs (miRNA) form a regulatory network with growth factors and transcription factors participating in various biological processes. It is now being recognized that the various key processes involved in cancer induction are under the control of...

journal_title：Photochemistry and photobiology

authors： Syed DN,Lall RK,Mukhtar H

更新日期：2015-01-01 00:00:00

abstract：:The reactions of polyuridylic acid [poly(U)] with Ru(bpy)3(3+) [Ru(III)] and SO4.-, following UV and visible light irradiation of Ru(bpy)3(2+) [Ru(II)] in the presence of S2O8(2-), were studied in an argon-saturated aqueous solution using time-resolved absorption and conductivity methods. The kinetics of the Ru(III) c...

journal_title：Photochemistry and photobiology

authors： Tossi AB,Görner H,Schulte-Frohlinde D

更新日期：1989-11-01 00:00:00

abstract：:A solution of iodouracil (0.2 mg/mL) and KI (0.1 M) in 0.23 M borate buffer (pH 7) forms triiodide upon exposure to UVB. In the presence of thyodene, the blue starch-iodine complex is formed, the intensity of which is proportional to the amount of UVB exposure. Studies were conducted using either a sunlamp or solar ir...

journal_title：Photochemistry and photobiology

authors： Rahn R,Lee MA

更新日期：1998-08-01 00:00:00

abstract：:Light-dark cycles are considered important cues to entrain biological clocks. A feedback loop of clock gene transcription and translation is the molecular basis underlying the mechanism of both central and peripheral clocks. Xenopus laevis embryonic melanophores respond to light with melanin granule dispersion, respon...

journal_title：Photochemistry and photobiology

authors： Magalhães Moraes MN,de Oliveira Poletini M,Ribeiro Ramos BC,de Lima LH,de Lauro Castrucci AM

更新日期：2014-05-01 00:00:00

abstract：:The contribution of DNA strand breaks accumulating in the course of nucleotide excision repair to upregulation of the p53 tumor suppressor protein was investigated in human dermal fibroblast strains after treatment with 254 nm ultraviolet (UV) light. For this purpose, fibroblast cultures were exposed to UV and incubat...

journal_title：Photochemistry and photobiology

authors： Enns L,Murray D,Mirzayans R

更新日期：2000-10-01 00:00:00

abstract：:Solar ultraviolet B (UVB) radiation has been shown to induce inflammation, DNA damage, p53 mutations and alterations in signaling pathways eventually leading to skin cancer. In this study, we investigated whether fisetin reduces inflammatory responses and modulates PI3K/AKT/NFκB cell survival signaling pathways in UVB...

journal_title：Photochemistry and photobiology

authors： Pal HC,Athar M,Elmets CA,Afaq F

更新日期：2015-01-01 00:00:00

abstract：:DNA UVB dosimeters, consisting of minidots of dried bacteriophage DNA placed on a UV-transparent polymer film, were analyzed by polymerase chain reactions (PCR). Ultraviolet-B dosimetry obtained with amplification of phage lambda DNA of segments of 1.08 kilobase pairs (kbp) and 2.24 kbp was compared with that obtained...

journal_title：Photochemistry and photobiology

authors： Yoshida H,Regan JD

更新日期：1997-11-01 00:00:00