Sun exposure over a lifetime in Australian adults from latitudinally diverse regions.

abstract：:A model of UV-induced DNA damage in oceanic bacterioplankton was developed and tested against previously published and novel measurements of cyclobutane pyrimidine dimers (CPD) in surface layers of the ocean. The model describes the effects of solar irradiance, wind-forced mixing of bacterioplankton and optical proper...

journal_title：Photochemistry and photobiology

authors： Huot Y,Jeffrey WH,Davis RF,Cullen JJ

更新日期：2000-07-01 00:00:00

abstract：:Limited trypsinization of large pea (Pisum sativum cv. Alaska) phytochrome and subsequent size-exclusion chromatography (SEC) in 0.1 M Na phosphate, pH 7.8, yielded a high-molecular-mass aggregate of tryptic fragments of phytochrome. Further SEC in 0.1 M Tris-HCl, pH 7.5, plus various concentrations of NaSCN, indicate...

journal_title：Photochemistry and photobiology

authors： Yamamoto KT,Tokutomi S

更新日期：1989-07-01 00:00:00

abstract：:The capacity of some linear and angular furocoumarins to induce DNA-protein cross-links by UVA (320-400 nm) irradiation has been evaluated in Chinese hamster ovary cells. Two linear furocoumarins, psoralen and 8-methoxypsoralen appeared to be capable of inducing DNA-protein cross-links to a noticeable extent. 4'-Methy...

journal_title：Photochemistry and photobiology

authors： Bordin F,Carlassare F,Busulini L,Baccichetti F

更新日期：1993-07-01 00:00:00

abstract：:SV40 DNA was irradiated in vitro and in vivo with UV-C (240-280 nm) and UV-B (280-320 nm) light, and damaged sites sensitive to digestion with Escherichia coli endonuclease III (endo III) and bacteriophage T4 endonuclease V (endo V) were quantified. The frequency of endo III-sensitive sites (primarily cytosine photohy...

journal_title：Photochemistry and photobiology

authors： Mitchell DL,Jen J,Cleaver JE

更新日期：1991-11-01 00:00:00

abstract：:The photophysical properties of two energy-transfer dyads that are potential candidates for near-infrared (NIR) imaging probes are investigated as a function of solvent polarity. The dyads (FbC-FbB and ZnC-FbB) contain either a free base (Fb) or zinc (Zn) chlorin (C) as the energy donor and a free base bacteriochlorin...

journal_title：Photochemistry and photobiology

authors： Kee HL,Diers JR,Ptaszek M,Muthiah C,Fan D,Lindsey JS,Bocian DF,Holten D

更新日期：2009-07-01 00:00:00

abstract：:Excess exposure to UV radiation can affect our health by causing sunburn, skin cancer, etc. It is therefore useful to determine the UV dosage received by people as a way of protecting them from the possible negative effects that this kind of radiation can cause. In this work, the personal outdoor percentage, which sho...

journal_title：Photochemistry and photobiology

authors： Gurrea G,Cañada J

更新日期：2007-11-01 00:00:00

abstract：:There is a need to improve the selectivity of photodynamic therapy and for better targeting of tumor cells within specific tumor compartments. Selective in vitro phototoxicity of a human bladder carcinoma cell line 647V has been achieved by targeting sulfonated aluminum phthalocyanines (AlSPc) with monoclonal antibodi...

journal_title：Photochemistry and photobiology

authors： Morgan J,Lottman H,Abbou CC,Chopin DK

更新日期：1994-11-01 00:00:00

abstract：:Near-ultraviolet light (UVA: 320-400 nm) constitutes a major part of sunlight UV. It is important to know the effect of UVA on the biological activities of organisms on the earth. We have previously reported that black light induces somatic-cell mutation in Drosophila larvae. To investigate which wavelength of the UVA...

journal_title：Photochemistry and photobiology

authors： Negishi T,Nagaoka C,Hayatsu H,Suzuki K,Hara T,Kubota M,Watanabe M,Hieda K

更新日期：2001-05-01 00:00:00

abstract：:Photosensitizer-functionalized reduced graphene oxide (rGO) nanoparticles are promising materials for photodynamic therapy in cancer management. In this study, rGO is synthesized by a green route employing glucose as the reducing agent and functionalized with photosensitizer, protoporphyrin IX (PPIX) in a convenient, ...

journal_title：Photochemistry and photobiology

authors： Shuvra Smita S,Das A,Barui A

更新日期：2020-11-01 00:00:00

abstract：:The kinetics of transients formed under photoexcitation of benzophenone (B) dissolved in three different polymers was studied by ns laser flash photolysis. These polymers were the soft rubbers poly (ethylene-co-butylene) (EB), polystyrene block-poly(ethylene-ran-butylene)-block-polystyrene (SEBS) and hard polystyrene ...

journal_title：Photochemistry and photobiology

authors： Levin PP,Efremkin AF,Sultimova NB,Kasparov VV,Khudyakov IV

更新日期：2014-03-01 00:00:00

abstract：:Photosensitizer (PS)-antibody conjugates (photoimmunoconjugates, PICs) enable cancer cell-targeted photodynamic therapy (PDT). Nonspecific chemical bioconjugation is widely used to synthesize PICs but gives rise to several shortcomings. The conjugates are heterogeneous, and the process is not easily reproducible. More...

journal_title：Photochemistry and photobiology

authors： Sadiki A,Kercher EM,Lu H,Lang RT,Spring BQ,Zhou ZS

更新日期：2020-05-01 00:00:00

abstract：:Tetraarylporphyrins substituted with nitro groups at beta-pyrrolic positions are potential candidates for electron-accepting pigments in model systems for photosynthesis. The photophysics of 2-nitro-5,10,15,20-tetra-p-tolylporphyrin and its zinc analog have been studied in order to evaluate this potential. The ground ...

journal_title：Photochemistry and photobiology

authors： Gust D,Moore TA,Luttrull DK,Seely GR,Bittersmann E,Bensasson RV,Rougée M,Land EJ,De Schryver FC,Van der Auweraer M

更新日期：1990-04-01 00:00:00

abstract：:Photoprotective formulations containing substances with antioxidant properties in combination have been used as a strategy for the improvement of photoaged skin conditions. However, there is a lack of studies evaluating the clinical efficacy of these substances in young women with signs of photoaging. Thus, the object...

journal_title：Photochemistry and photobiology

authors： Fossa Shirata MM,Maia Campos PMBG

更新日期：2021-02-02 00:00:00

abstract：:The psaI and psaL genes were characterized from the cyanobacterium Synechococcus sp. strain PCC 7002. The gene organization was different from that reported for other cyanobacteria with psaI occurring upstream and being divergently transcribed from the psaL gene. Mutants lacking PsaI or PsaL were generated by interpos...

journal_title：Photochemistry and photobiology

authors： Schluchter WM,Shen G,Zhao J,Bryant DA

更新日期：1996-07-01 00:00:00

abstract：:This paper studies the dye-sensitized photooxidation of tyrosine (tyr) and tyr di- and tripeptides (tyr-tyr and tyr-tyr-tyr) mediated by singlet molecular oxygen (O2[1 delta g]) in alkaline media. Photooxidation quantum efficiencies (phi r) were obtained by determining the overall and reactive rate constants of intera...

journal_title：Photochemistry and photobiology

authors： Criado S,Soltermann AT,Marioli JM,García NA

更新日期：1998-10-01 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：:We previously reported that Shewanella oneidensis MR-1 is extremely sensitive to natural solar radiation (NSR). Here we analyzed the global transcriptional profile of MR-1 during a 1-h recovering period after exposure to ambient solar light at a dose that yields about 20% survival rate on a Luria-Bertani (LB) plate. W...

journal_title：Photochemistry and photobiology

authors： Qiu X,Tiedje JM,Sundin GW

更新日期：2005-11-01 00:00:00

abstract：:An important step in predicting the effects of future increases in UV radiation (UVR) is to evaluate the mechanisms that organisms use to prevent and repair DNA damage and determine how those mechanisms influence UVR sensitivity. Damage is prevented to varying degrees through photoprotection and repaired via two main ...

journal_title：Photochemistry and photobiology

authors： Olson MH,Mitchell DL

更新日期：2006-03-01 00:00:00

abstract：:Supported silver nanoparticles (Ag NPs) were prepared by chemical reduction method with a sol-gel method. The structure, morphology, and interconnectivity of Ag/TiO2 nanocomposites (NCs) were analyzed using different instrumental techniques. Transmission electron microscopy reveals the Ag NPs have uniformly distribute...

journal_title：Photochemistry and photobiology

authors： Deshmukh SP,Mullani SB,Koli VB,Patil SM,Kasabe PJ,Dandge PB,Pawar SA,Delekar SD

更新日期：2018-11-01 00:00:00

abstract：:Within this study, the erythemal ultraviolet (UV) exposure received by different parts of the body during four different activities is determined. Optoelectronic devices were used to measure the erythemal UV exposure at 10 different positions of the body. The measuring devices were fixed on the forehead, on the should...

journal_title：Photochemistry and photobiology

authors： Weihs P,Schmalwieser A,Reinisch C,Meraner E,Walisch S,Harald M

更新日期：2013-07-01 00:00:00

abstract：:Immunosuppressive doses of solar-simulated UV radiation activate lymph node B cells that can suppress primary immunity by inhibiting the function of dendritic cells. The aim of this study was to determine the waveband responsible for activation of these suppressor B cells. We exposed C57BL/6 mice to various doses of e...

journal_title：Photochemistry and photobiology

authors： Byrne SN,Ahmed J,Halliday GM

更新日期：2005-11-01 00:00:00

abstract：:Photolysis of 6-chloro-1,3-dimethyluracil and mesitylene in the presence of trifluoroacetic acid (TFA) at low temperature gave 1,3,5,7,9- and 1,3,6,8,10-pentamethylcyclooctapyrimidine-2,4-diones (1b, 1c). Sequential photoreaction of the former (1b) resulted in the formation of 9,11-diazapentacyclo[6.4.0.0(1,3).0(2,5)....

journal_title：Photochemistry and photobiology

authors： Ohkura K,Nishijima K,Seki K

更新日期：2001-09-01 00:00:00

abstract：:Singlet oxygen ((1)O(2)) is the most important cytotoxic agent in photodynamic therapy (PDT). The feasibility of using a chemiluminescence (CL) probe, 3,7-dihydro-6-[4-(2-(N'-(5-fluoresceinyl)thioureido)ethoxy)phenyl]-2-methylimidazo{1,2-a}pyrazin-3-one sodium salt (fluoresceinyl Cypridina luciferin analog, FCLA), to ...

journal_title：Photochemistry and photobiology

authors： Qin Y,Xing D,Luo S,Zhou J,Zhong X,Chen Q

更新日期：2005-11-01 00:00:00

abstract：:Consecutive spectral analyses of ultraweak photon emission from sweet potato showing a defense response were conducted to observe the process of physiological transition. The spectrum showed a drastic transition from 2 to 10 h after inoculation with Fusarium oxysporum, during which the emission intensity increased slo...

journal_title：Photochemistry and photobiology

authors： Iyozumi H,Kato K,Makino T

更新日期：2002-03-01 00:00:00

abstract：:We conducted a thermovisual comparison of mean hand surface temperature changes upon local heating with two different IR sources. Sixty-six patients with rheumatoid arthritis (47 women and 19 men; average age, 56.1 ± 8.6 years) were subjected to topical heat therapy for one hand with either the standard IR radiator (S...

journal_title：Photochemistry and photobiology

authors： Rutkowski R,Straburzyńska-Lupa A,Korman P,Romanowski W,Gizińska M

更新日期：2011-11-01 00:00:00

abstract：:The mutant T203V of the light driven chloride pump halorhodopsin from Halobacterium salinarum was crystallized and the X-ray structure was solved at 1.6 angstroms resolution. The T203V structure turned out to be nearly identical to the wild type protein with a root mean square deviation of 0.43 angstroms for the carbo...

journal_title：Photochemistry and photobiology

authors： Gmelin W,Zeth K,Efremov R,Heberle J,Tittor J,Oesterhelt D

更新日期：2007-03-01 00:00:00

abstract：:Photocatalytic degradation of methyl orange (MO) as a model of an organic pollution was accomplished with magnetic and porous TiO(2)/ZnO/Fe(3)O(4)/PANI and ZnO/Fe(3)O(4)/PANI nanocomposites under visible light irradiation. The structures of nanocomposites were characterized by various techniques including UV-Vis absor...

journal_title：Photochemistry and photobiology

authors： Nabid MR,Sedghi R,Gholami S,Oskooie HA,Heravi MM

更新日期：2013-01-01 00:00:00

abstract：:The activity of the bimodal fluorescent protein (bmFP) (lambda max, 488 and 517 nm) in the in vitro luciferase reaction has been studied. The bmFP that is produced by Photobacterium phosphoreum strain bmFP is a dimer of two homologous subunits binding four riboflavin 5'-phosphate (FMN)-myristate chromophores. The addi...

journal_title：Photochemistry and photobiology

authors： Karatani H,Konaka T

更新日期：2000-02-01 00:00:00

abstract：:The photoprocesses of berberine, palmatine, coralyne, sanguinarine, flavopereirine and ellipticine were studied in several solvents. The quantum yields Φ(Δ) of singlet molecular oxygen formation of berberine, palmatine and sanguinarine are moderate in dichloromethane (0.2-0.6) and much smaller in acetonitrile or trifl...

journal_title：Photochemistry and photobiology

authors： Görner H,Miskolczy Z,Megyesi M,Biczók L

更新日期：2011-03-01 00:00:00

abstract：:We investigated the effect of the cation-π interaction on the susceptibility of a tryptophan model system toward interaction with singlet oxygen, that is, type II photooxidation. The model system consists of two indole units linked to a lariat crown ether to measure the total rate of removal of singlet oxygen by the i...

journal_title：Photochemistry and photobiology

authors： Arevalo GE,Cagan DA,Monsour CG,Garcia AC,McCurdy A,Selke M

更新日期：2020-11-01 00:00:00