- Photobleaching and photoactivation: following protein dynamics in living cells
Cell Biology and Metabolism Branch, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
Nat Cell Biol . 2003
..Widespread applications of these fluorescent-based methods are revealing new aspects of protein dynamics and the biological processes that they regulate...
- Adhesion and migration of ovarian cancer cells on crosslinked laminin fibers nanofabricated by multiphoton excited photochemistry
Center for Cell Analysis and Modeling, Department of Cell Biology, University of Connecticut Health Center, Farmington, CT 06030, USA
Integr Biol (Camb) 1:469-76. 2009
..To explore this possibility, we have used multiphoton excited photochemistry (MPE) to synthesize models of the ovarian basal lamina consisting of crosslinked laminin nanofibers to ..
- Photochemistry of organic iron(III) complexing ligands in oceanic systems
Geosciences Research Division, Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA, USA
Photochem Photobiol 82:1505-16. 2006
..This review highlights recent findings, including both model ligand studies and experimentallobservational studies of the natural seawater ligand pool...
- Recent developments in photocatalytic water treatment technology: a review
Meng Nan Chong
School of Chemical Engineering, The University of Adelaide, 5005 Adelaide, Australia
Water Res 44:2997-3027. 2010
..This paper will deliver a scientific and technical overview and useful information to scientists and engineers who work in this field...
- The bactericidal effect of TiO2 photocatalysis involves adsorption onto catalyst and the loss of membrane integrity
ENAC Laboratory for Environmental Biotechnology, Swiss Federal Institute of Technology EPFL, Lausanne, Switzerland
FEMS Microbiol Lett 258:18-24. 2006
..Our work suggests that adsorption of cells onto aggregated TiO2, followed by loss of membrane integrity, is key to the bactericidal effect of photocatalysis...
- The retinal pigment epithelium in visual function
Bereich Experimentelle Ophthalmologie, Klinik und Poliklinik fuer Augenheilkunde, Universitaetsklinikum Hamburg Eppendorf, Martinistrasse 52, 20246 Hamburg, Germany
Physiol Rev 85:845-81. 2005
..On the other hand, mutations in genes expressed in photoreceptors can lead to degenerations of the RPE. Thus both tissues can be regarded as a functional unit where both interacting partners depend on each other...
- Whole-cell response of the pennate diatom Phaeodactylum tricornutum to iron starvation
Andrew E Allen
Centre National de la Recherche Scientifique Unite Mixte de Recherche 8186, Dept of Biology, Ecole Normale Superieure, 46 rue d Ulm, 75005 Paris, France
Proc Natl Acad Sci U S A 105:10438-43. 2008
..Iron limitation leads to the elevated expression of at least three gene clusters absent from the Thalassiosira pseudonana genome that encode for components of iron capture and uptake mechanisms...
- Photoproduction of catalase-insensitive peroxides on the donor side of manganese-depleted photosystem II: evidence with a specific fluorescent probe
Sergey A Khorobrykh
Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
Biochemistry 50:10658-65. 2011
..These ROOH forms, likely including several species derived from lipid peroxides, may mediate the donor side-induced photoinhibition of PSII via protein modification...
- Engineering of a monomeric green-to-red photoactivatable fluorescent protein induced by blue light
Nadya G Gurskaya
Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho Maklaya 16 10, Moscow 117997, Russia
Nat Biotechnol 24:461-5. 2006
..We demonstrate the suitability of Dendra for protein labeling and tracking to quantitatively study dynamics of fibrillarin and vimentin in mammalian cells...
- Excited state reactions in fluorescent proteins
Stephen R Meech
School of Chemistry, University of East Anglia, Norwich, UK NR1 2QN
Chem Soc Rev 38:2922-34. 2009
..Finally the photophysics underlying the new generation of photochemically active fluorescent proteins are discussed (155 references)...
- Too much light? How beta-carotene protects the photosystem II reaction centre
Division of Molecular Biosciences, Imperial College London, South Kensington Campus, London, UK SW7 2AZ
Photochem Photobiol Sci 4:950-6. 2005
..The relevance of a cycle of electrons around photosystem II, via cytochrome b(559), in order to re-reduce the beta-carotenes when they are oxidised and hence restore their ability to quench singlet oxygen, is also discussed...
- Factors affecting virus photoinactivation by a series of phenothiazine dyes
S J Wagner
American Red Cross Biomedical Services, Jerome H Holland Laboratory for the Biomedical Sciences, Rockville, MD 20855, USA
Photochem Photobiol 67:343-9. 1998
- Making light work of enzyme catalysis: protochlorophyllide oxidoreductase
Derren J Heyes
Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, UK
Trends Biochem Sci 30:642-9. 2005
..Recent advances in our understanding of the catalytic mechanism of POR illustrate why it is an important generic model for studying enzyme catalysis and reaction dynamics...
- Remote energy storage in Ni(OH)2 with TiO2 photocatalyst
Institute of Industrial Science, University of Tokyo, Komaba, Tokyo, 153 8505, Japan
Phys Chem Chem Phys 8:2716-9. 2006
..It was revealed that the stored energy could be taken out and used chemically or electrochemically. The oxidized Ni(OH)2 was reduced by gaseous formaldehyde, formate, ethanol and H2O2...
- Photoelectric properties of a detector based on dried bacteriorhodopsin film
Wei Wei Wang
Department of Mechanical and Materials Engineering, Faculty of Engineering, The University of Western Ontario, London, Ontario, Canada N6A 5B9
Biosens Bioelectron 21:1309-19. 2006
..Experimental observations and a predictive model both support the notion that dried bR film can be used in simple highly sensitive photo-detector designs...
- Enzymology below 200 K: the kinetics and thermodynamics of the photochemistry catalyzed by protochlorophyllide oxidoreductase
Derren J Heyes
Robert Hill Institute for Photosynthesis and Krebs Institute for Biomolecular Research, Department of Molecular Biology and Biotechnology, University of Sheffield, Sheffield S10 2TN, United Kingdom
Proc Natl Acad Sci U S A 99:11145-50. 2002
- Environmental carcinogenic polycyclic aromatic hydrocarbons: photochemistry and phototoxicity
Department of Chemistry, Jackson State University, Jackson, MS 39217, USA
J Environ Sci Health C Environ Carcinog Ecotoxicol Rev 20:149-83. 2002
..Although many books and reviews on these subjects have been published, PAH photochemistry and phototoxicity have received much less attention...
- Functional recovery and expression of GDNF seen in photochemically induced cerebral infarction
Department of Rehabilitation and Physical Medicine, Graduate School of Medical and Dental Sciences, Kagoshima University, Sakuragaoka, Kagoshima, Japan
Int J Neurosci 117:315-26. 2007
..Therefore, the expression of GDNF protein might have some relationship with the functional recovery of paralysis. There are great hopes that GDNF could be used as a therapeutic agent for cerebral infarction...
- Binding, aggregation and photochemical properties of methylene blue in mitochondrial suspensions
Departamento de Bioquimica, Instituto de Quimica, Universidade de Sao Paulo, Sao Paulo, Brazil
Photochem Photobiol 79:227-32. 2004
..These differences in photochemical properties should influence the cytotoxic effects of photodynamic treatment in the presence of MB...
- Phytochrome-interacting factor 1 is a critical bHLH regulator of chlorophyll biosynthesis
Section of Molecular Cell and Developmental Biology and Institute of Molecular Biology, University of Texas at Austin, Austin, TX 78712, USA
Science 305:1937-41. 2004
- Photochemical products in urban mixtures enhance inflammatory responses in lung cells
Kenneth G Sexton
Department of Environmental Science and Engineering, University of North Carolina at Chapel Hill, 27599, USA
Inhal Toxicol 16:107-14. 2004
..In the absence of such particles, these gaseous products remained mostly as gases. These experiments show that photochemically produced gaseous products do influence the toxic responses of the cells in the absence of particles...
- Caged compounds: photorelease technology for control of cellular chemistry and physiology
Graham C R Ellis-Davies
Department of Pharmacology and Physiology, Drexel University College of Medicine, Philadelphia, Pennsylvania 19102, USA
Nat Methods 4:619-28. 2007
..Here I describe important examples of widely used caged compounds, their design features and synthesis, as well as practical details of how to use them with living cells...
- Determination of two phototransformation products of bentazone using quadrupole time-of-flight mass spectrometry
Europa University of Applied Sciences, Limburger Strasse 2, Idstein, Germany
Anal Bioanal Chem 388:1227-34. 2007
..The required irradiation time was matrix dependent. 2-(Isopropylcarbamoyl)phenylsulfamic acid was detected in a drainage channel in the Ebro river delta (Catalonia, Spain)...
- Reactive oxygen species in photochemistry of the red fluorescent protein "Killer Red"
Russell B Vegh
School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332 0400, USA
Chem Commun (Camb) 47:4887-9. 2011
..We have investigated the source of the bioactive species through a variety of photophysical and photochemical techniques. Our results indicate a Type I (electron transfer mediated) photosensitizing mechanism...
- Different inactivation behaviors of MS-2 phage and Escherichia coli in TiO2 photocatalytic disinfection
School of Chemical Engineering, College of Engineering, Seoul National University, Sillim dong, Gwanak Gu, Seoul 151 742, South Korea
Appl Environ Microbiol 71:270-5. 2005
..coli is inactivated by both the free and the surface-bound hydroxyl radicals. E. coli might also be inactivated by other ROS, such as O(2).(-) and H(2)O(2), according to the present results...
- Quantum-dot-sensitized TiO2 inverse opals for photoelectrochemical hydrogen generation
Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore, Singapore
Small 8:37-42. 2012
..The photoelectrochemical performance shows high photocurrent density (4.84 mA cm(-2) at 0 V vs. Ag/AgCl) under simulated solar-light illumination...
- Formation of radicals from singlet oxygen produced during photoinhibition of isolated light-harvesting proteins of photosystem II
Department of Environmental Sciences, University of Tuscia, Largo dell Universita, 01100 Viterbo, Italy
Biochim Biophys Acta 1608:63-73. 2004
..Thus, monomerization of antennae as well as their incorporation into the PSII complex seem to represent physiologically protected forms. A comparison is made of the photoinhibition mechanisms of different photosynthetic systems...
- Photochemistry of norharmane in aqueous solution
M Micaela Gonzalez
CIHIDECAR CONICET, Departamento de Quimica Organica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon 2, 3p, Ciudad Universitaria, 1428, Buenos Aires, Argentina
Photochem Photobiol Sci 8:1139-49. 2009
The photochemistry of norharmane (9H-pyrido[3,4-b]indole) in acidic (pH 5.0+/-0.1) and alkaline (pH 10.0+/-0.1) aqueous solutions was studied...
- Photodynamic therapy: update 2006. Part 1: Photochemistry and photobiology
P G Calzavara-Pinton
Department of Dermatology, Azienda Ospedaliera Spedali Civili and University of Brescia, Piazzale Spedali Civili 1, 25123 Brescia, Italy
J Eur Acad Dermatol Venereol 21:293-302. 2007
..This paper provides an overview of the chemistry of the photosensitizers, the photobiology and photoimmunology of the photodynamic reaction as well as the photophysical characteristics of the light sources available for PDT...
- Photophysics and photochemistry of z-chlorprothixene in acetonitrile
Luis E Piñero
Department of Chemistry, University of Puerto Rico at Humacao, Humacao, Puerto Rico
Photochem Photobiol 85:895-900. 2009
..These results indicate that the phototoxicity of zCPTX is somehow affected by the formation of CTX...
- Photochemistry in photonic crystal fiber nanoreactors
Jocelyn S Y Chen
Max Planck Institut für die Physik des Lichts, Günther Scharowsky Strasse 1 Bau 24, 91058 Erlangen, Germany
Chemistry 16:5607-12. 2010
..Furthermore, the enhanced sensitivity and optical pump intensity implied that even systems with very small quantum yields can be measured very quickly--in our experiments one thousand times faster than in a conventional cuvette...
- Synthesis and DNA interactions of a bis-phenothiazinium photosensitizer
Department of Chemistry, Georgia State University, P O Box 4098, Atlanta, GA 30302 4098, USA
Org Biomol Chem 6:4026-35. 2008
..Finally, viscometric data indicated that CT DNA interacts with compound 3 and MB by a combination of groove binding and monofunctional intercalation, and with compound 3 by a third, bisintercalative binding mode...
- Virus inactivation by silver doped titanium dioxide nanoparticles for drinking water treatment
Michael V Liga
Department of Civil and Environmental Engineering, Rice University, Houston, TX 77005, USA
Water Res 45:535-44. 2011
..The increased production of hydroxyl free radicals was found to be responsible for the enhanced viral inactivation...
- The photochemistry of fluorescent proteins: implications for their biological applications
Harriet E Seward
Department of Biochemistry, University of Leicester, Henry Wellcome Building, Lancaster Road, Leicester, UK LE1 9HN
Chem Soc Rev 38:2842-51. 2009
..In this tutorial review, we discuss the photochemistry of this fascinating class of proteins and illustrate some of their advantages and drawbacks in a range of ..
- One- and two-photon excitation of beta-carbolines in aqueous solution: pH-dependent spectroscopy, photochemistry, and photophysics
M Micaela Gonzalez
CIHIDECAR CONICET, Departamento de Quimica Organica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, 1428 Buenos Aires, Argentina
J Phys Chem A 113:6648-56. 2009
..In this work, a study of the aqueous solution-phase photochemistry, photophysics, and spectroscopy of three important betaCs [norharmane (nHo), harmane (Ho), and harmine (Ha)] ..
- The role of reactive oxygen species in Staphylococcus aureus photoinactivation by methylene blue
National Institute of Research of Rural Engineering Water and Forestry Tunis, rue Hédi Karray, B P 10, 2080, Ariana, Tunis, Tunisia
Water Sci Technol 58:1047-54. 2008
..aureus were studied spectrophotometrically. This demonstrated that a metachromatic reaction took place between MB and S. aureus bacteria. Furthermore, S. aureus bacteria induced additional dimerization of MB...
- Rational design of photoconvertible and biphotochromic fluorescent proteins for advanced microscopy applications
Laboratory of Photochemistry and Spectroscopy, Department of Chemistry, Katholieke Universiteit Leuven, 3001 Heverlee, Belgium
Chem Biol 18:1241-51. 2011
..We present in particular NijiFP, a promising new fluorescent protein with photoconvertible and biphotochromic properties that make it ideal for advanced fluorescence-based imaging applications...
- Surface photochemistry of pesticides: an approach using diffuse reflectance and chromatography techniques
José P Da Silva
Centro de Quimica Fisica Molecular, Instituto Superior Tecnico, 1049 001 Lisboa, Portugal
Environ Sci Technol 38:2849-56. 2004
The photochemistry of pesticides triadimenol and triadimefon was studied on cellulose and beta-cyclodextrin (beta-CD) in controlled and natural conditions, using diffuse reflectance techniques and chromatographic analysis...
- Environmental photochemistry of nitro-PAHs: direct observation of ultrafast intersystem crossing in 1-nitropyrene
Carlos E Crespo-Hernandez
Department of Chemistry, Center for Chemical Dynamics, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA
J Phys Chem A 112:6313-9. 2008
..The small energy gap suggests a large spin-orbit coupling between the S1(pipi*) and T3(npi*) states, which explains the ultrafast intersystem crossing of 1-nitropyrene in nonpolar solvents...
- Characterization and photochemistry of 13-desmethyl bacteriorhodopsin
Nathan B Gillespie
Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, Connecticut 06269 3060, USA
J Phys Chem B 109:16142-52. 2005
The photochemistry of the 13-desmethyl (DM) analogue of bacteriorhodopsin (BR) is examined by using spectroscopy, molecular orbital theory, and chromophore extraction followed by conformational analysis...
- Site-specific solvation of the photoexcited protochlorophyllide a in methanol: formation of the hydrogen-bonded intermediate state induced by hydrogen-bond strengthening
Guang Jiu Zhao
State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
Biophys J 94:38-46. 2008
- Protochlorophyllide a: A Comprehensive Photophysical Picture
Institute for Physical Chemistry, University Jena, Lessingstrasse 10, 07743 Jena, Germany
Chemphyschem 10:144-50. 2009
The photochemistry of protochlorophyllide a, a precursor in the biosynthesis of chlorophyll and substrate of the light regulated enzyme protochlorophyllide oxidoreductase, is investigated by pump-probe spectroscopy...
- UV photochemistry of DNA in vitro and in Bacillus subtilis spores at earth-ambient and low atmospheric pressure: implications for spore survival on other planets or moons in the solar system
Wayne L Nicholson
Department of Veterinary Science and Microbiology, University of Arizona, Tucson, Arizona 85721, USA
Astrobiology 2:417-25. 2002
..To date, however, spore survival and DNA photochemistry have been explored only at the extremes of Earth-normal atmospheric pressure (101...
- Nuclear quantum tunneling in the light-activated enzyme protochlorophyllide oxidoreductase
Derren J Heyes
Manchester Interdisciplinary Biocentre, Faculty of Life Sciences, University of Manchester, 131 Princess Street, Manchester M1 7DN, United Kingdom
J Biol Chem 284:3762-7. 2009
..Consequently, we have established the first important link between photochemical and nuclear quantum tunneling reactions, linked to protein dynamics, in a biologically significant system...
- Photocontrol of single-chain DNA conformation in cell-mimicking microcompartments
Institut de Chimie Moléculaire FR2769, Laboratoire de Chimie Organique UMR CNRS 7611, UPMC Universite Paris 06, 75005 Paris, France
Chembiochem 9:1201-6. 2008
- Vibrioferrin, an unusual marine siderophore: iron binding, photochemistry, and biological implications
Shady A Amin
Department of Chemistry and Biochemistry, San Diego State University, San Diego, California 92182 1030, USA
Inorg Chem 48:11451-8. 2009
..The consequences that these features have on bacterial-algal interactions with potential importance to understanding the origin and sustenance of harmful algal blooms are discussed...
- Surface photochemistry: organic molecules within nanocavities of calixarenes
Luis F Vieira Ferreira
Centro de Química Física Molecular Complexo I, Inst Sup Téc, Universidade Tecnica de Lisboa, Av Rovisco Pais 1049 001 Lisboa, Portugal
Curr Drug Discov Technol 4:229-45. 2007
..One of the main conclusions was that the solid support can deeply affect or even control the photochemistry of an adsorbed probe...
- Prebiotic significance of extraterrestrial ice photochemistry: detection of hydantoin in organic residues
Pierre de Marcellus
Universite Paris Sud, Astrochimie et Origines, Institut d Astrophysique Spatiale, Orsay, France
Astrobiology 11:847-54. 2011
..result, together with other related experiments reported recently, points to the potential importance of the photochemistry of interstellar "dirty" ices in the formation of organics in Solar System materials...
- Electric field quenching of carbon nanotube photoluminescence
Anton V Naumov
Applied Physics Program, Rice University, Houston, Texas 77005, USA
Nano Lett 8:1527-31. 2008
..Photoluminescence intensity was found to follow a reciprocal hyperbolic cosine dependence on electric field...
- Effect of light on self-assembly of aqueous mixtures of sodium dodecyl sulfate and a cationic, bolaform surfactant containing azobenzene
F Pierce Hubbard
Department of Chemical and Biological Engineering, University of Madison Wisconsin, 1415 Engineering Drive, Madison, Wisconsin 53706 1691, USA
Langmuir 23:4819-29. 2007
..g., vesicles rich in trans-BTHA and SDS coexist with micelles rich in cis-BTHA and SDS). The results presented in this paper provide guidance for the design of light-tunable surfactants systems...
- Morphological changes in vesicles and release of an encapsulated compound triggered by a photoresponsive Malachite Green leuconitrile derivative
Ryoko M Uda
Department of Chemical Engineering, Nara National College of Technology, Yata 22, Yamato koriyama, Nara 639 1080, Japan
Langmuir 26:5444-50. 2010
..Furthermore, irradiation of the Malachite Green derivative induces the release of a vesicle-encapsulated compound...
- Photochemistry, remotely sensed physiological reflectance index and de-epoxidation state of the xanthophyll cycle in Quercus coccifera under intense drought
José Javier Peguero-Pina
Unidad de Recursos Forestales, Centro de Investigación y Tecnología Agroalimentaria, Gobierno de Aragón, Apdo 727, 50080 Saragossa, Spain
Oecologia 156:1-11. 2008
..It is concluded that, contrary to early reports, PRI is a sensible, indirect, non-destructive water stress indicator, even in plants experiencing intense drought...
- EosFP, a fluorescent marker protein with UV-inducible green-to-red fluorescence conversion
Department of General Zoology and Endocrinology, University of Ulm, 89069 Ulm, Germany
Proc Natl Acad Sci U S A 101:15905-10. 2004
..The possibility to locally change the emission wavelength by focused UV light makes EosFP a superb marker for experiments aimed at tracking the movements of biomolecules within the living cell...
- Comparative photochemistry of animal type 1 and type 4 cryptochromes
Department of Biochemistry and Biophysics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599, USA
Biochemistry 48:8585-93. 2009
..Although the photochemistry of plant CRYs has been studied in some detail, the photochemical behavior of animal cryptochromes remains ..
- Effect of denaturation on the photochemistry of pyrimidine bases in isolated DNA
Laboratoire Lesions des Acides Nucleiques, Service de Chimie Inorganique et Biologique UMR E 3 CEA UJF, CEA DSM Département de Recherche Fondamentale sur la Matière Condensée, CEA Grenoble, 38054 Grenoble Cedex 9, France
J Photochem Photobiol B 82:45-52. 2006
The influence of denaturation on DNA photochemistry was studied by quantifying the yield of formation of all possible bipyrimidine photolesions within isolated genomic DNA samples exposed to UVC radiation...
- Identification and characterization of the product release steps within the catalytic cycle of protochlorophyllide oxidoreductase
Derren J Heyes
Robert Hill Institute for Photosynthesis, Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, United Kingdom
Biochemistry 43:8265-71. 2004
..Following release of Chlide, the subsequent binding of Pchlide allows the next catalytic cycle to proceed...
- Prebiotic adenine revisited: eutectics and photochemistry
Leslie E Orgel
The Salk Institute for Biological Studies, San Diego, CA, USA
Orig Life Evol Biosph 34:361-9. 2004
..It is further suggested that the reaction of cyanoacetylene with cyanate in eutectic solution to give cytosine might have proceeded in parallel with adenine synthesis...
- The excited-state chemistry of protochlorophyllide a: a time-resolved fluorescence study
Institut fur Physikalische Chemie, Bayerische Julius Maximilians Universität Würzburg, Am Hubland, 97074 Wurzburg, Germany
Chemphyschem 7:1727-33. 2006
- Structural events in the photocycle of green fluorescent protein
Jasper J van Thor
Laboratory of Molecular Biophysics, University of Oxford, Rex Richards Building, South Parks Road, Oxford OX1 3QU, United Kingdom
J Phys Chem B 109:16099-108. 2005
..Vibrational spectral markers at 1695 cm(-1) assigned to Gln 69, at 1631 cm(-1) belonging to a C=C mode, and at 1354 cm(-1) belonging to a phenolate vibration further indicated the I2 and I* states to be unrelaxed...
- Photocatalytic degradation of E. coliform in water
Darren Delai Sun
Environmental Engineering Research Center, School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore
Water Res 37:3452-62. 2003
- Visible light inactivation of bacteria and fungi by modified titanium dioxide
Faculty of Chemistry, Jagiellonian University, ul Ingardena 3, 30 060 Krakow, Poland
Photochem Photobiol Sci 6:642-8. 2007
..faecalis>>C. albicans approximately A. niger. This sequence results most probably from differences in cell wall or cell membrane structures in these microorganisms and is not related to the ability of catalase production...
- Binding and photochemistry of enantiomeric 2-(3-benzoylphenyl)propionic acid (ketoprofen) in the human serum albumin environment
Istituto per la Sintesi Organica e la Fotoreattivita ISOF, CNR, Via P Gobetti 101, 40129, Bologna, Italy
Photochem Photobiol Sci 6:462-70. 2007
..7-0.9). Secondary transients were consistent with the occurrence of photodecarboxylation and/or photoreduction within the protein matrix...
- Production of reactive oxygen species in chloride- and calcium-depleted photosystem II and their involvement in photoinhibition
Institut fur Biologie II, Biochemie der Pflanzen, Universitat Freiburg, Schänzlestr 1, 79104 Freiburg, Germany
Biochim Biophys Acta 1608:171-80. 2004
- Photochemistry of 5-S-cysteinyldopa
Department of Organic and Biological Chemistry, University of Naples, Italy
Photochem Photobiol 60:33-7. 1994
..These results are of interest in relation to the high susceptibility of fair-complexioned individuals to actinic damage and skin cancer...
- Ultrafast time-resolved transient absorption and resonance raman spectroscopy study of the photodeprotection and rearrangement reactions of p-hydroxyphenacyl caged phosphates
Contribution from the Department of Chemistry, The University of Hong Kong, SAR, P R China
J Am Chem Soc 128:2558-70. 2006
..J. Am. Chem. Soc. 2005, 127, 1463-1472) provide a real time overall mechanistic description for the photodeprotection and rearrangement reactions of pHP caged phosphate phototrigger compounds...
- Photoconsumption of oxygen in photosystem II preparations under impairment of the water-oxidizing complex
S A Khorobrykh
Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Moscow Region, 142290, Russia
Biochemistry (Mosc) 67:683-8. 2002
- Transient absorption and photovoltage study of' self-assembled bacteriorhodopsin/polycation multilayer films
Institute of Materials Chemistry, Tampere University of Technology, PO Box 541, 33101, Tampere, Finland
Biosens Bioelectron 17:509-15. 2002
..A simultaneous two-exponential decay in millisecond time domain was observed at red wavelengths. The source of the red-shifted absorption is suggested to be the C(610) intermediate of the cis photocycle of bR...
- The effects of the bacterial interaction with visible-light responsive titania photocatalyst on the bactericidal performance
Chia Liang Cheng
Department of Physics, National Dong Hwa University, Hualien, Taiwan
J Biomed Sci 16:7. 2009
..These findings suggest the created materials with high bacterial interaction ability might be a useful strategy to improve the antimicrobial activity of visible-light-activated TiO2...
- H-aggregation of azobenzene-substituted amphiphiles in vesicular membranes
Johanna M Kuiper
Stratingh Institute, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
Langmuir 20:1152-60. 2004
- Reversible photoswitching in a cell-sized vesicle
Department of Physics, Graduate School of Science, Kyoto University, Kyoto 606 8502, Japan
Langmuir 21:7626-8. 2005
..The mechanism of this reversible photoswitching in the vesicle morphology is interpreted in terms of a change in the effective cross-sectional area of the photosensitive molecule...
- Controlling photochemistry with distinct hydrophobic nanoenvironments
Lakshmi S Kaanumalle
Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, USA
J Am Chem Soc 126:14366-7. 2004
..Encapsulated guests such as dibenzyl ketones reside in an essentially dry environment, and upon irradiation, undergo rearrangement processes that are templated by the shape of the 1 nm x 2 nm cavity...
- Production and scavenging of reactive oxygen species in chloroplasts and their functions
Faculty of Life Science and Biotechnology, Fukuyama University, Fukuyama 729 0292, Japan
Plant Physiol 141:391-6. 2006
- Radiometric quantities and units used in photobiology and photochemistry: recommendations of the Commission Internationale de L'Eclairage (International Commission on Illumination)
David H Sliney
International Commission on Illumination CIE, Vienna, Austria
Photochem Photobiol 83:425-32. 2007
..As photobiology and photochemistry both represent the fusion of several scientific disciplines, it is not surprising that the physical terms used ..
- Heterogeneous photocatalyzed degradation of uracil and 5-bromouracil in aqueous suspensions of titanium dioxide
H K Singh
Department of Chemistry, Aligarh Muslim University, Aligarh 202002, India
J Hazard Mater 142:425-30. 2007
..Photocatalyst Degussa P25 was found to be more efficient for the degradation of both compounds as compared with other TiO2 powders such as UV100, PC500 and TTP...
- Kinetic study on photocatalytic degradation of C.I. Acid Yellow 23 by ZnO photocatalyst
M A Behnajady
Department of Applied Chemistry, Islamic Azad University, Tabriz, Islamic Republic of Iran
J Hazard Mater 133:226-32. 2006
..A comparison between experimental and calculated apparent reaction rate constants shows that the results obtained from the L-H modified model are in good agreement with experimental data...
- Photocatalytic activity for degradation of nitrogen oxides over visible light responsive titania-based photocatalysts
Yu Ming Lin
Center for Environmental, Safety and Health Technology Development, Industrial Technology Research Institute, Room 204, Building 32, 195, Section 4, Chung Hsing Road, Chutung, Hsinchu 310, Taiwan
Environ Sci Technol 40:1616-21. 2006
..Rinsing with water was responsible for the restored reactivity of prepared TiO2 catalysts for NO(x) degradation...
- Crystallographic analysis of primary visual photochemistry
Biological Information Research Center, National Institute of Advanced Industrial Science and Technology, 2 41 6 Aomi, Koto ku, Tokyo 135 0064, Japan
Angew Chem Int Ed Engl 45:4270-3. 2006
- Synthesis and photochemistry of a two-position Ru(terpy)(phen)(L)2+ scorpionate complex
Laboratoire de Chimie Organo Minerale, UMR 7513 du CNRS, Institut Le Bel, Universite Louis Pasteur, 4 rue Blaise Pascal, 67000 Strasbourg Cedex, France
Inorg Chem 45:4024-34. 2006
..Thermal back-coordination of the tail was investigated in the dark. It took place quantitatively from the corresponding ruthenium chloride complex by trapping of the anion with silver salts...
- Photoreversible DNA condensation using light-responsive surfactants
Anne Laure M Le Ny
Department of Chemical Engineering and Material Sciences, University of Southern California, Los Angeles, California 90089 1211, USA
J Am Chem Soc 128:6400-8. 2006
..The combined results clearly show the ability to control the interaction between DNA and the complexing agent and, therefore, DNA condensation with light...
- Gas-phase photochemistry of the photoactive yellow protein chromophore trans-p-coumaric acid
Wendy L Ryan
Department of Chemistry, University of Chicago, Chicago, Illinois 60637, USA
J Am Chem Soc 124:6194-201. 2002
..Although trans-CA was excited in all three regions, a significant cis-CA peak appeared only in region II, though a small cis peak was observed in region III...
- Ultrafast photoisomerization of photoactive yellow protein chromophore analogues in solution: influence of the protonation state
UMR CNRS ENS 8640 PASTEUR, Departement de Chimie, Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris Cedex 05, France
Chemphyschem 7:1717-26. 2006
..A trans-to-cis isomerization mechanism involving mainly the ethylenic double-bond torsion and/or solvation is proposed for the anionic forms, whereas "concerted" intramolecular motions are proposed for the neutral forms...
- Structural evolution of the chromophore in the primary stages of trans/cis isomerization in photoactive yellow protein
Max Born Institut fur Nichtlineare Optik und Kurzzeitspektroskopie, Max Born Strasse 2A, D 12489 Berlin, Germany
J Am Chem Soc 127:18100-6. 2005
- Solvent effect on the excited-state dynamics of analogues of the photoactive yellow protein chromophore
Departement de Chimie, Ecole Normale Superieure UMR CNRS 8640 PASTEUR, 24 rue Lhomond, 75231 Paris Cedex 05, France
J Phys Chem A 110:3393-404. 2006
..The excited-state deactivation of pCT- would lead to the formation of a ground-state intermediate at the "perp" geometry, which would return to the initial trans conformation without net isomerization...
- Ultrafast infrared spectroscopy reveals a key step for successful entry into the photocycle for photoactive yellow protein
L J G W van Wilderen
Department of Physics and Astronomy, Faculty of Sciences, Vrije Universiteit, De Boelelaan 1081, 1081 HV, Amsterdam, The Netherlands
Proc Natl Acad Sci U S A 103:15050-5. 2006
- Comment on "Gas-phase photochemistry of the photoactive yellow protein chromophore trans-p-coumaric acid"
Mattijs de Groot
van t Hoff Institute for Molecular Sciences, Faculty of Science, University of Amsterdam, Nieuwe Achtergracht 127 129, 1018 WV Amsterdam, The Netherlands
J Phys Chem A 109:6135-6. 2005
- Photosynthetic pigment composition and photosystem II photochemistry of wheat ears
Key Laboratory of Photosynthesis and Environmental Molecular Physiology, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
Plant Physiol Biochem 42:395-402. 2004
The characteristics of pigment composition and photosystem II (PSII) photochemistry in the flag leaf and ear parts of wheat (Triticum aestivum L.) grown in the field was compared...
- Sensitive circular dichroism marker for the chromophore environment of photoactive yellow protein: assignment of the 307 and 318 nm bands to the n --> pi* transition of the carbonyl
Biophysics Group, Physics Department, Freie Universitat Berlin, Arnimallee 14, D 14195 Berlin, Germany
J Phys Chem B 109:629-33. 2005
..Thus, the 318 nm CD signal is a sensitive marker for the environment of the chromophore carbonyl, which samples various environments and configurations during the photocycle...
- The photochemistry of thymidylyl-(3'-5')-5-methyl-2'-deoxycytidine in aqueous solution
Department of Pharmaceutical Chemistry, School of Pharmacy, University of California, San Francisco, CA 94143 0446, USA
Photochem Photobiol 81:404-18. 2005
The photochemistry of the dinucleoside monophosphate thymidylyl-(3'-5')-5-methyl-2'-deoxycytidine (Tpm5dC) has been studied in aqueous solution using both 254 nm and UV-B radiation...
- Ab initio excited-state dynamics of the photoactive yellow protein chromophore
Department of Chemistry and the Beckman Institute, University of Illinois at Urbana Champaign, Urbana, Illinois 61801, USA
J Am Chem Soc 125:12710-1. 2003
- Photoisomerization of spiropyran for driving a molecular shuttle
National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beiijng 100080, P R China
Org Lett 9:3929-32. 2007
..This movement process of the macrocycle is accompanied by reversible absorptive output signals which can be detected by the naked eye...
- Fluorescence and photochemistry of recombinant phytochrome from the cyanobacterium Synechocystis
Biology Department, M V Lomonosov Moscow State University, Russia
Photochem Photobiol 67:263-7. 1998
..These photochemical features are interpreted in terms of different activation barriers for the photoreaction in the Pr excited state...
- Photodynamics in complex environments: ab initio multiple spawning quantum mechanical/molecular mechanical dynamics
Aaron M Virshup
Department of Chemistry, Center for Biophysics and Computational Biology, University of Illinois, Urbana, Illinois 61801, USA
J Phys Chem B 113:3280-91. 2009
..as funnels for population transfer between different electronic states, and play a central role in ultrafast photochemistry. Because most practical photochemistry occurs in solution and protein environments, it is important to ..
- Direct observation of lateral photovoltaic effect in nano-metal-films
C Q Yu
Department of Physics, Shanghai Jiao Tong University, Shanghai, PR China
Opt Express 17:21712-22. 2009
..All the data and analyses in this study indicate that metal side LPE in MS structure has some natural superiorities to the semiconductor side LPE and may open many exciting opportunities for realizing multifunctional devices...
- Structural basis for the photochemistry of alpha-phycoerythrocyanin
Physikdepartment E17, Technische Universitat Munchen, James Franck Strasse, 85747 Garching, Germany
Biochemistry 46:416-23. 2007
..Interactions of the chromophore A and D pyrrole rings with flexible protein moieties are required for the formation and stabilization of the isomers. We predict that the results will hold for all photoactive biliproteins...
- A novel photoreaction mechanism for the circadian blue light photoreceptor Drosophila cryptochrome
Max Planck Institute of Molecular Physiology, Department of Structural Biology, Otto Hahn Strasse 11, 44227 Dortmund, Germany
J Biol Chem 282:13011-21. 2007
..radical represents the light-activated state that mediates resetting of the Drosophila circadian clock...
- Ultrafast excited-state dynamics of the photoswitchable protein Dronpa
Department of Chemistry and Institute for Nanoscale Physics and Chemistry INPAC, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Heverlee, Belgium
J Am Chem Soc 129:4870-1. 2007
- Enhanced visible-light-induced photocatalytic disinfection of E. coli by carbon-sensitized nitrogen-doped titanium oxide
Department of Materials Science and Engineering, University of Illinois at Urbana Champaign, Urbana, Illinois 61801, USA
Environ Sci Technol 41:5050-6. 2007
..The enhanced photocatalytic activity is related to stronger visible light absorption of the carbon-sensitized TiON...
- Animal type 1 cryptochromes. Analysis of the redox state of the flavin cofactor by site-directed mutagenesis
Department of Biochemistry and Biophysics, University of North Carolina School of Medicine, Chapel Hill, North Carolina 27599, USA
J Biol Chem 283:3256-63. 2008
- Enhanced antibactericidal function of W4+-doped titania-coated nickel ferrite composite nanoparticles: a biomaterial system
B K Sunkara
Center for Structural and Functional Materials and Chemical Engineering Department, University of Louisiana at Lafayette, P O Box 44130, Lafayette, LA 70504 4130, USA
Acta Biomater 4:273-83. 2008
- Fluorescent proteins: maturation, photochemistry and photophysics
S James Remington
Institute of Molecular Biology and Department of Physics, University of Oregon, Eugene, OR 97403, USA
Curr Opin Struct Biol 16:714-21. 2006
- Regulating gene expression with light-activated oligonucleotides
Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, PA 19104 6323, USA
Mol Biosyst 3:100-10. 2007
..Quantitative, laser-initiated methods for controlling DNA and RNA function will illuminate new areas in cell and developmental biology...