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Hotta Yasuhisa Y Department of Chemistry, Graduate School of Science, Kobe University, 1-1 Rokkodai-cho, Nada-ku, Kobe 657-8501, Japan. - - 2014
Photoisomerizations of a newly designed azobenzene derivative reversibly change its self-assembly in a solution to form twisted supramolecular nanofibers and amorphous aggregates, respectively. When irradiating the sample solution with audible sound, the former assembly exhibits a LD response due to its hydrodynamic orientation, but the latter one is LD silent, ...
Kobzeva Tatiana V TV Institute of Chemical Kinetics and Combustion SB RAS, 630090, Novosibirsk, - - 2014
The luminescent system of higher luminous fungi is not fully understood and the enzyme/substrate pair of the light emission reaction has not been isolated. It was suggested that luminescence of fungi involves oxidase-type enzymes, and reactive oxygen species are important for fungal light production. Generation of reactive oxygen species can ...
Steinhaus Johannes J Faculty of Technology, Department of Production Engineering, Tomas Bata University in Zlín, Zlín, Czech Republic; Department of Natural Sciences, Bonn-Rhine-Sieg University of Applied Sciences, Rheinbach, - - 2014
The aim of this study is to investigate depth dependent changes of polymerization process and kinetics of visible light-curing (VLC) dental composites in real-time. The measured quantity - "ion viscosity" determined by dielectric analysis (DEA) - provides the depth dependent reaction rate which is correlated to the light intensity available ...
Takai Akinori A Institute of Life and Environmental Sciences, Osaka Shin-Ai College , 6-2-28 Tsurumi, Tsurumi-ku, Osaka 538-0053 , Japan - - 2014
Abstract Medaka fish (Oryzias latipes) were whole-bodily treated with various doses of mitomycin C (MMC), ethylmethanesulfonate (EMS), cyclophosphamide (CP), diethylnitrosamine (DEN), or colchicine (COL) for 24 h, and the frequency of micronucleated cells (MNCs) was measured in the gills at 24 and 48 h after treatment. In the present experiments, MMC, CP, ...
Sahoo Jugal Kishore JK WestCHEM, Department of Pure and Applied Chemistry, Thomas Graham Building, 295 Cathedral Street, Glasgow G1 1XL, UK. - - 2014
We report on a supramolecular self-assembly system that displays coupled light switching, biocatalytic condensation/hydrolysis and gelation. The equilibrium state of this system can be regulated by light, favouring in situ formation, by protease catalysed peptide synthesis, of self-assembling trans- in ambient light; however, irradiation with UV light gives rise to ...
Dong Jie J School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, - - 2014
Polymer nanoparticles are prepared by self-assembly of visible light and pH sensitive perylene-functionalized copolymers which are synthesized by quaternization between 1-(bromomethyl)perylene and the dimethylaminoethyl units of poly(dimethylaminoethyl methacrylate) (PDMAEMA). The perylene-containing polymethacrylate segments afford the system visible light responsiveness and the unquaternized PDMAEMA segments afford the system pH responsiveness. The ...
Fernandes Jesum A JA Universidade Federal do Rio Grande do Sul, Instituto de Química, PGCIMAT, Av. Bento Goncalves, 9500, P.O.Box 15003, CEP 91501-970, Porto Alegre, RS, Brazil. - - 2014
Highly ordered TiO2 NT arrays were easily decorated with CdSe via RF magnetron sputtering. After deposition thermal annealing at different temperatures was performed to obtain an improved TiO2/CdSe interface. The heterostructures were characterized by RBS, SEM, XRD, HRTEM, UV-Vis, EIS, IPCE and current versus voltage curves. The sensitized semiconducting electrodes ...
Zhang Xianzhe X CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China. - - 2014
Light activated shape memory polymers (LASMPs) are relatively new kinds of smart materials and have significant technological applications ranging from biomedical devices to aerospace technology. EVA films doped with spiropyran with contents ranging from 0.1% to 3% show efficient UV activated shape memory behaviors if the fixed shape deformation is ...
Prall M M GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstraße 1, 64291 Darmstadt, - - 2014
The use of motion mitigation techniques such as tracking and gating in particle therapy requires real-time knowledge of tumor position with millimeter precision. The aim of this phantom-based study was to evaluate the option of diagnostic ultrasound (US) imaging (sonography) as real-time motion detection method for scanned heavy ion beam ...
Tachi Fuyuki - - 2014
Solar ultraviolet-B (UVB) radiation is deleterious to plant-dwelling mites. Neoseiulus californicus (McGregor) is a predominant predator of agriculturally important pest species of spider mite. However, phytoseiid mites are more vulnerable to UVB radiation than spider mites. Thus, the UVB radiation may influence decision making in foraging phytoseiid mites whether disperse ...
Schwaab J J Mediri GmbH, Heidelberg, Germany. Electronic address: - - 2014
Modern techniques as ion beam therapy or 4D imaging require precise target position information. However, target motion particularly in the abdomen due to respiration or patient movement is still a challenge and demands methods that detect and compensate this motion. Ultrasound represents a non-invasive, dose-free and model-independent alternative to fluoroscopy, ...
Randolph Luc D LD Louvain Drug Research Institute, Université catholique de Louvain, Brussels, Belgium; Institute of Condensed Matter and Nanosciences, Bio- and Soft- Matter, Université catholique de Louvain, Louvain-la-Neuve, Belgium; CRIBIO (Center for Research and Engineering on Biomaterials), Brussels, Belgium. Electronic address: - - 2014
To test the null hypotheses that photoactive resin composites containing a Type I photoinitiator would exhibit reduced DC or increased monomer elution at substantially short curing times compared with materials based on a Type 2 ketone/amine system. Two experimental resin composites were prepared, using either Lucirin-TPO or camphorquinone/DMAEMA. Specimens were ...
Zhou W J WJ New Energy Research Institute, School of Environment and Energy, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou 510006, China. - - 2014
Ag2O/TiO2 nanobelt heterostructures have been found to possess high ultraviolet photocatalytic activity, but a poor cycling performance. After a S-doping treatment, the obtained Ag2O/Ag2S2O7/TiO2 heterostructured nanobelts exhibited an enhanced and stable photocatalytic activity under both ultraviolet and visible light irradiation, which was exemplified by photo-degradation of organic pollutants and photocurrent ...
Mondal Chanchal - - 2014
A mild, template free protocol has been demonstrated for SnS2 nanoflake formation in gram level from SnCl2 and thioacetamide (TAA). The SnS2 nanoflakes congregate to nanoflowers and nanoyarns with variable TAA concentrations. BET measurements reveal that the synthesized nanomaterials are highly porous having very high surface area and the nanoflower ...
Duarte Luís L Department of Chemistry, University of Coimbra, P-3004-535 Coimbra, Portugal. - - 2014
Monomers of azobenzene were isolated in argon matrices at 15 K and characterized by infrared spectroscopy and theoretical calculations. When the equilibrium vapors existing over the azobenzene crystals at room temperature were trapped in the matrix, only the thermodynamically most stable E-azobenzene was detected. In an attempt to convert E-azobenzene ...
Chang Chun - - 2014
A novel organic-inorganic three-dimensional (3D) mesoporous graphite carbon nitride/BiOI (MCN/BiOI) heterojunction photocatalyst with excellent visible-light-driven photocatalytic performance was synthesized by a facile solvothermal method and used for degradation of bisphenol A (BPA) in water. After hybridization with MCN, a heterojunction was formed and the photogenerated carriers could be effectively separated ...
Choice Zanethia D ZD School of Natural Resources and Environment, University of Florida, 103 Black Hall, Gainesville, FL 32611, United States. Electronic address: - - 2014
Seagrasses around the world are threatened by human activities that degrade water quality and reduce light availability. In this study, light requirements were determined for four common and abundant seagrasses along the Gulf coast of peninsular Florida using a threshold detecting algorithm. Light requirements ranged from 8% to 10% of ...
Reimão-Pinto Madalena M MM CIGMH, Departamento Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Campus de Caparica, 2829-516 Caparica, Portugal. - - 2014
Spatial and temporal control of molecular mechanisms can be achieved using photolabile bonds that connect biomolecules to protective caging groups, which can be cleaved upon irradiation of a specific wavelength, releasing the biomolecule ready-to-use. Here we apply and improve a previously reported strategy to tightly control in vitro transcription reactions. ...
Byrne K S KS School of Physics, The University of Western Australia, Crawley 6009, Western Australia, - - 2014
Irradiation of natural pink and brown diamond by middle-ultraviolet light (photon energy ϵ ≥ 4.1 eV ) is seen to induce anomalous fluorescence phenomena at N3 defect centres (structure N3-V). When diamonds primed in this fashion are subsequently exposed to infrared light (even with a delay of many hours), a transient ...
Hu Liwen L Department of Environmental Health, School of Public Health, China Medical University, Shenyang, - - 2014
Human outdoor activities are randomly orientated at different angles to the sun. To quantify the ocular UV and biologically effective UV (UVBE) (i.e., the ocular UV irradiance exposure for photokeratitis (UVpker), photoconjunctivitis (UVpcon) and cataract (UVcat)) exposure for different rotation angle ranges, a rotating manikin was used to monitor the ...
Batchu Sudha Rani SR Department of Chemistry and Biochemistry, Florida International University, Miami, FL, USA; Southeast Environmental Research Center, Florida International University, Miami, FL, USA. Electronic address: - - 2014
Dioctyl sulfosuccinate (DOSS) is one of the main components of Corexit® EC9500A, a chemical dispersant formulation used at the surface and at depth during the response to the Deepwater Horizon incident. Despite being a high volume use chemical, data on its environmental stability are scarce. Hydrolysis and photodegradation of DOSS ...
Azizullah Azizullah A Department of Biology, Cell Biology Division, Friedrich-Alexander University, Staudtstr. 5, 91058 Erlangen, Germany; Department of Botany, Kohat University of Science and Technology (KUST), 26000 Kohat, Pakistan. Electronic address: - - 2014
The present study was designed to validate the applicability of photosynthetic performance using a PAM fluorometer and photosynthetic pigments in Euglena gracilis as endpoint parameters in toxicity assessment of liquid detergents using a dish washing liquid detergent during short- (0-72h) and long-term (7days) exposure. In short-term experiments, the detergent affected ...
Ahn Hyo-Jin HJ Interdisciplinary School of Green Energy and Low Dimensional Carbon Materials Center, UNIST, 689-798, - - 2014
The quantum-dot sensitization of a commercial TiO2 photoelectrode with maximized light harvesting capacity leads to the realization of hydrogen generation under visible light irradiation. The greatly improved performance of an electrode with light-harvesting capability suggests the proposed route is an effective strategy for electrode materials in photoconversion systems.
Ono Tomohiro T Department of Radiation Oncology and Image-applied Therapy, Graduate School of Medicine, Kyoto University, Kyoto 606-8507, - - 2014
The Vero4DRT system has the capability for dynamic tumor-tracking (DTT) stereotactic irradiation using a unique gimbaled x-ray head. The purposes of this study were to develop DTT conformal arc irradiation and to estimate its geometric and dosimetric accuracy. The gimbaled x-ray head, supported on an O-ring gantry, was moved in ...
Huang Qiushi - - 2014
A surface structured extreme ultraviolet multilayer mirror was developed showing full band suppression of UV (λ=100-400  nm) and simultaneously a high reflectance of EUV light (λ=13.5  nm). The surface structure consists of Si pyramids, which are substantially transparent for EUV but reflective for UV light. The reflected UV is filtered out by ...
De Argila D D Servicio de Dermatología, Hospital Universitario La Princesa, Madrid, Spain. Electronic address: - - 2014
Photodermatoses are skin conditions that are induced or exacerbated by electromagnetic radiation (including visible light, UV light, and infrared radiation) from the sun or artificial light sources. In Part 1 of this series we review current understanding of the pathophysiology of these processes and their classification. We also discuss technical ...
Wang Wenshou W Department of Chemistry, University of California , Riverside, California 92521, United - - 2014
We report a novel photoreversible color switching system based on the photocatalytic activity of TiO2 nanocrystals and the redox-driven color switching property of methylene blue (MB). This system rapidly changes from blue to colorless under UV irradiation and recovers its original blue color under visible light irradiation. We have identified ...
Taflinski Leonie L Department of Plastic and Reconstructive Surgery, Hand Surgery, and Burn Center, Medical Faculty, RWTH Aachen University, Aachen, - - 2014
Transforming growth factor-β1 (TGF-β1) is the major promoter of phenotypic shift between fibroblasts and myofibroblasts accompanied by the expression and incorporation of α-smooth muscle actin (α-SMA). This differentiation is crucial during normal wound healing and wound closure, however, myofibroblasts are considered as the main effecter cell type in fibrosis, e.g. ...
Tarn Derrick D Department of Chemistry and Biochemistry, California NanoSystems Institute, University of California, Los Angeles, California 90095, - - 2014
Two azobenzene α-cyclodextrin based nanovalves are designed, synthesized and assembled on mesoporous silica nanoparticles. Under aqueous conditions, the cyclodextrin cap is tightly bound to the azobenzene moiety and capable of holding back loaded cargo molecules. Upon irradiation with a near-UV light laser, trans to cis-photoisomerization of azobenzene initiates a dethreading ...
Murata Yasumasa Y Laboratory of Ecological Information, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan, - - 2014
Ambient ultraviolet-B (UVB) radiation causes lethal damage to spider mites, and the extent of photochemical effects is determined by cumulative irradiance in the two-spotted spider mite, Tetranychus urticae. However, the LD50 values obtained using a UVB lamp were much lower than those elicited by solar UVB radiation. As solar radiation ...
Chen Kuang-Yen - - 2014
Monolayers of fluorinated light-driven molecular motors were synthesized and immobilized on gold films in an altitudinal orientation via tripodal stators. In this design the functionalized molecular motors are not interfering and preserve their rotary function on gold. The wettability of the self-assembled monolayers can be modulated by UV irradiation.
Xie Xiaojiang X Department of Inorganic and Analytical Chemistry, University of Geneva, Quai E. Ansermet 30, CH-1211 Geneva, - - 2014
Biological light-driven proton pumps use light to move protons across a cell membrane, creating a proton gradient. Although photochromic compounds such as spiropyrans can reversibly convert between two structures with differing pKa values, spiropyrans have not been used to generate either a light-driven proton pump or an electrical current. Here, ...
Smulko Janusz M JM GR Harrison Spectroscopy Laboratory, Massachusetts Institute of Technology, Cambridge, MA 02139, - - 2014
Raman spectroscopy is a fundamental form of molecular spectroscopy that is widely used to investigate structures and properties of molecules using their vibrational transitions. It relies on inelastic scattering of monochromatic laser light irradiating the specimen. After appropriate filtering the scattered light is dispersed onto a detector to determine the ...
Chiang Li-Fen LF Department of Biomedical Engineering and Environmental Sciences, National Tsing-Hua University, 101, Sec. 2, Kuang-Fu Road, Hsinchu 30013, - - 2014
In this study, the microwave-assisted sol-gel method and chemical reduction were used to synthesize Cu-TiO2 nanorod composites for enhanced photocatalytic degradation of bisphenol A (BPA) in the presence of UV and visible lights. The electron microscopic images showed that the Cu nanoparticles at 4.5±0.1nm were well-deposited onto the surface of ...
Jiao Zhengbo Z State Key Laboratory for Oxo Synthesis and Selective Oxidation and National Engineering Research Center for Fine Petrochemical Intermediates, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000 (P. R. - - 2014
In recent decades, solar-driven hydrogen production over semiconductors has attracted tremendous interest owing to the global energy and environmental crisis. Among various semiconductor materials, TiO2 exhibits outstanding photocatalytic properties and has been extensively applied in diverse photocatalytic and photoelectric systems. However, two major drawbacks limit practical applications, namely, high charge-recombination ...
Zhu Ming-Qiang MQ Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China. - - 2014
All-optical modulation of a spiropyran-based device, integrating the transmittance switching (absorption) and wavelength modulation (emission) of visible light frequency induced by alternating UV/visible light irradiation is demonstrated. As an alternative to conventional organic transistors, all-optical devices based on SP-PCL have potential utility as single molecular transistors for optical switching and ...
Marcet Z Z Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China and William Mong Institute of Nano Science and Technology, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China and Department of Physics, University of Florida, Gainesville, Florida 32611, - - 2014
We measure the force exerted by microwave radiation on a centimeter-sized parallel-plate metallic resonant unit. By varying the ambient environment, we distinguish carefully between the direct radiation force and the indirect photothermal component. At the microwave resonance, the former is measured quantitatively to be 100 times larger than the conventional ...
Gu Liuan L Department of Chemistry, Harbin Institute of Technology, Harbin 150001, - - 2014
Anatase TiO2 nanosheets with dominant {001} facets were hybridized with graphitic carbon nitride (g-C3N4) using a facile solvent evaporation method. On top of the superior photocatalytic performance of highly reactive {001} facets, the hybridization with g-C3N4 is confirmed to further improve the reactivity through degrading a series of organic molecules ...
Yang Guang G CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, Key Laboratory of Optoelectronic Science and Technology in Anhui Province, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China. - - 2014
Herein, we demonstrate for the first time that the enantio-selective polymerization of DA monomers could be realized upon irradiation with circularly polarized visible light (CPVL), which could effectively provide chiral order in the propagating step of a polymerization reaction.
Suzuki Takeshi T Faculty of Agriculture, Ibaraki University, Ami, Ibaraki 300-0393, Japan; Faculty of Agriculture, Aristotle University of Thessaloniki, 541 24 Thessaloniki, Greece; Center for Environment, Health and Field Sciences, Chiba University, Kashiwa, Chiba 277-0882, Japan; Graduate School of Agricultural Science, Kobe University, Nada, Kobe 657-8501, Japan; Japan Society for the Promotion of Science, Chiyoda, Tokyo 102-0083, Japan. Electronic address: - - 2014
We developed a computer-based system for controlling the photoperiod and irradiance of UV-B and white light from a 5×5 light-emitting diode (LED) matrix (100×100mm). In this system, the LED matrix was installed in each of four irradiation boxes and controlled by pulse-width modulators so that each box can independently emit ...
Grether-Beck Susanne S IUF - Leibniz Research Institute for Environmental Medicine, Düsseldorf, - - 2014
Photoprotection of human skin by means of sunscreens or daily skin care products is traditionally centered around the prevention of acute (e.g. sunburn) and chronic (e.g. skin cancer and photoaging) skin damage which may result from exposure to ultraviolet (UV) B and UVA rays. Within the last decade, however, it ...
Glickman G L GL University of California, San Diego Center for Chronobiology, 9500 Gilman Drive, La Jolla, CA 92093. Electronic address: - - 2014
Light regulates a variety of behavioral and physiological processes, including activity rhythms and hormone secretory patterns. Seasonal changes in the proportion of light in a day (photoperiod) further modulate those functions. Recently, short (SP) versus long days (LP) were found to markedly increase light sensitivity for phase shifting in Syrian ...
Cheng Hefeng H State Key Lab of Crystal Materials, Shandong University, Jinan 250100, China. - - 2014
Heterogeneous photocatalysis that employs photo-excited semiconductor materials to reduce water and oxidize toxic pollutants upon solar light irradiation holds great prospects for renewable energy substitutes and environmental protection. To utilize solar light effectively, the quest for highly active photocatalysts working under visible light has always been the research focus. Layered ...
Chen Gang - - 2014
A photo-tunable laminated liquid crystal film with simultaneous multicolour reflection is successfully fabricated by doping a light-driven chiral molecular switch into the laminated cholesteric liquid crystal structure. Upon UV-light irradiation, the reflection notches and their hyper-reflectivity properties can be precisely tuned, and their original state can be properly returned by ...
Abe Toshiyuki T Department of Frontier Materials Chemistry, Graduate School of Science and Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki 036-8561, Japan. - - 2014
An organic p-n bilayer photocatalysis system successfully induced the oxidative decomposition of hydrazine (N2H4) into N2 and simultaneously yielded H2 from H(+). This demonstrates the first instance of the stoichiometric decomposition of N2H4 under visible-light irradiation.
Hou Lili - - 2014
Reversible non-invasive control over the generation of singlet oxygen is demonstrated in a bicomponent system comprising of a diarylethene photochromic switch and a porphyrin photosensitizer by selective irradiation at distinct wavelengths. The efficient generation of singlet oxygen by the photosensitizer is observed when the diarylethene unit is in the colorless ...
Tanaka Atsuhiro A Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University , Kowakae, Higashiosaka, Osaka 577-8502, - - 2014
Photocatalytic H2 and O2 formations under visible light irradiation (λ > 400 nm) are demonstrated using Pt-Au nanopaticles for the reduction site and WO3 for the oxidation site in solid-state Pt/Au/WO3.
Orlova Tetiana N TN Institute of Physics of National Academy of Sciences of Ukraine, Prospekt Nauki 46, 03680 Kiev, Ukraine and LOMA (Laboratoire Ondes et Matiere d'Aquitaine), University Bordeaux 1, 351 Cours de la Liberation, 33400 Talence, - - 2014
We experimentally study how the cholesteric pitch P depends on the equilibrium pitch P0 in planar liquid crystal (LC) cells with both strong and semistrong anchoring conditions. The cholesteric phase was induced by dissolution in the nematic LC of the right-handed chiral dopant 7-dehydrocholesterol (7-DHC, provitamin D3) which transforms to ...
Yoshida Keiichi K Nagasaki University Hospital, Clinic of Fixed Prosthodontics, Nagasaki, Japan, Clinic of Fixed Prosthodontics, Nagasaki University Hospital, Nagasaki, - - 2014
Objective: The purpose of this study was to evaluate the Knoop hardness number (KHN) of dual-cured core build-up resin composites (DCBRCs) at 6 depths of cavity after 3 post-irradiation times by 4 light-exposure methods. Material and Methods: Five specimens each of DCBRCs (Clearfil DC Core Plus [DCP] and Unifil Core ...
Moon Sung Hwan SH Clean Energy Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, 136-791, Republic of - - 2014
Printable, wide band-gap chalcopyrite compound films (CuInGaS2, CIGS) were synthesized on transparent conducting oxide substrates. The wide band-gap and defective nature of the films reveal semi-transparent and bifacial properties that are beneficial for power generating window applications. Importantly, solar cell devices with these films demonstrate a synergistic effect for bifacial ...
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