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Yang Jie J State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China. - - 2014
We report a visible-light-induced reductive decarboxylative C(sp(3))-C(sp) bond coupling reaction to construct aryl, alkyl and silyl substituted alkynes at room temperature in organic solvents or neutral aqueous solutions. This chemoselective alkynylation was compatible with various functional groups and biomolecules, and did not affect the protein enzyme activity.
Bansal Akshaya A Department of Biomedical Engineering, Faculty of Engineering, National University of Singapore , 117575 - - 2014
Conspectus "Smart" stimuli-responsive nanomaterials are becoming popular as targeted delivery systems because they allow the use of internal or external stimuli to achieve spatial or temporal control over the delivery process. Among the stimuli that have been used, light is of special interest because it is not only noninvasive but ...
Chang Po-Chun PC Graduate Institute of Clinical Dentistry, School of Dentistry, National Taiwan University, Taipei, Taiwan; Department of Dentistry, National Taiwan University Hospital, Taipei, - - 2014
This study aimed to evaluate the adjunctive effect of LED light in platelet-derived growth factor (PDGF)-aided dentoalveolar osteogenesis. Full-thickness osseous wounds were created on rat maxillae and were either unfilled or filled with poly-(D,L-lactide) and poly-(D,L-lactide-co-glycolide) microspheres encapsulating PDGF. Animals received daily 660±25 nm LED light irradiation at 0, 10 ...
Shin Jung Won JW Department of Dermatology, Seoul National University Bundang Hospital, Seongnam-si, Republic of - - 2014
Few reports describe UVB irradiation-induced pigmentation responses from different skin colors or from different body sites. This study determined pigmentation changes in skin with different colors and from different body sites following 308-nm excimer laser irradiation. Ten healthy Korean adults were divided into light- and dark-skin groups and irradiated body ...
Komatsu Aino A Kyoto - - 2014
Blue-light-induced chloroplast photorelocation movement is observed in most land plants. Chloroplasts move toward weak-light-irradiated areas to efficiently absorb light (the accumulation response) and escape from strong-light-irradiated areas to avoid photodamage (the avoidance response). The plant-specific kinase phototropin is the blue-light receptor for chloroplast movements. Although the molecular mechanisms for chloroplast ...
Hu Zhen Z School of Chemical Engineering and Technology, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150001, China. zhen.hu@chem.ox.ac.uk - - 2014
A C60-polydopamine-graphene nanohybrid is prepared by a facile approach via polydopamine chemistry. The hybrid displays synergistic photodynamic and photothermal cancer cell killing effects under single light irradiation.
Tauböck Tobias T TT Department of Preventive Dentistry, Periodontology and Cariology, Center for Dental Medicine, University of Zurich, Zurich, - - 2014
This study investigated the influence of modulated photo-activation on axial polymerization shrinkage, shrinkage force, and hardening of light- and dual-curing resin-based composites. Three light-curing resin composites (SDR bulk-fill, Esthet X flow, and Esthet X HD) and one dual-curing material (Rebilda DC) were subjected to different irradiation protocols with identical energy ...
Chtcheprov Pavel P Department of Biomedical Engineering, University of North Carolina, 152 MacNider Hall, Campus Box 7575, Chapel Hill, North Carolina - - 2014
Microbeam radiation therapy (MRT) uses narrow planes of high dose radiation beams to treat cancerous tumors. This experimental therapy method based on synchrotron radiation has been shown to spare normal tissue at up to 1000 Gy of peak entrance dose while still being effective in tumor eradication and extending the ...
Evaristo Thaiane Cristine TC Department of Surgery and Orthopedy, Medical School, Paulista State University, Botucatu, SP, - - 2014
To obtain a decellularized tracheal scaffold associating traditional approaches with the novel light-emitting diode (LED) proposal. This study was performed with New Zealand adult rabbits weighing 3.0 - 4.0 kg. Different protocols (22) were used combining physical (agitation and LED irradiation), chemical (SDS and Triton X-100 detergents), and enzymatic methods ...
Creese Chris C Department of Ecology and Evolutionary Biology, University of California Los Angeles, 621 Charles E. Young Drive South, Box 951606, Los Angeles, CA, 90095-1606, - - 2014
The stomatal behavior of ferns provides an excellent system for disentangling responses to different environmental signals, which balance carbon gain against water loss. Here, we measured responses of stomatal conductance (gs ) to irradiance, CO2 , and vapor pressure deficit (VPD) for 13 phylogenetically diverse species native to open and ...
Copley Graeme - - 2014
Two molecules in which the intensity of shorter-wavelength fluorescence from a strong fluorophore is modulated by longer-wavelength irradiation of an attached merocyanine-spirooxazine reverse photochromic moiety have been synthesized and studied. This unusual fluorescence behavior is the result of quenching of fluorophore fluorescence by the thermally stable, open, zwitterionic form of ...
Atobe Sueko S a Graduate School of Agricultural and Life Sciences, The University of Tokyo , Tokyo , - - 2014
The green microalga Botryococcus braunii (B. braunii), race B, was cultured under light-emitting diode (LED) irradiation with and without violet light. This study examined the effect of violet light on hydrocarbon recovery and production in B. braunii. C34 botryococcene hydrocarbons were efficiently extracted by thermal pretreatments at lower temperatures when ...
Xiao Qi Q School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, 2 George St. Brisbane, QLD 4001 (Australia), Fax: - - 2014
Recent advances in direct-use plasmonic-metal nanoparticles (NPs) as photocatalysts to drive organic synthesis reactions under visible-light irradiation have attracted great interest. Plasmonic-metal NPs are characterized by their strong interaction with visible light through excitation of the localized surface plasmon resonance (LSPR). Herein, we review recent developments in direct photocatalysis using ...
Yenchalwar Sandeep G SG Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune-411008, MH, India. - - 2014
A light sensitive wide band gap radial heterojunction between TiO2 and nSiNWs sensitized by gold nanoparticles is reported. The surface plasmon of AuNPs influences the optical and photocurrent properties of the heterojunction considerably. Improvement in the band gap emission of TiO2 has been found at the expense of defect radiation. ...
Zhou Jianwei J Institute of Energy and Fuel, Xinxiang University, Xinxiang, China 453003. - - 2014
C3N4@ZnO hybrid materials with visible light photocatalytic performance have been prepared by facile mechanical milling. The dispersion of conjugated molecule g-C3N4 on the surface of ZnO improved during mechanical process, and the multilayer hybrid structure of g-C3N4@ZnO materials with remarkable visible light photocatalytic activity was formed by ball milling. The ...
Huo Junchao J Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China. czli@ecust.edu.cn - - 2014
A novel one-step, vapor-fed aerosol flame synthetic process (VAFS) has been developed to prepare Ti(3+) self-doped titanium dioxide (TiO2). The freshly formed TiO2 was in situ surface hydrogenated during the condensation stage by introducing H2 above the flame, and Ti(3+) ions were created near the surface of TiO2. The relative ...
Jiang Denghui D The Laboratory for Nano-Catalytic Materials and Technologies and ∥i-Lab, Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences , Suzhou 215123, - - 2014
The surface plasmon resonance (SPR) and Schottky effects are important photocatalytic activity boosters in metallic cocatalyst/photocatalyst systems, but it is difficult to differentiate them. In this report, we design a simple method to distinguish the two effects by utilizing a distance-tunable self-assembled monolayer (SAM) in a gold (Au)-Cu2O composite in ...
Wu Chin H CH Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, CA 92093, - - 2014
The efficiency and selectivity of SPECIFIC-CP, a widely used method for selective double cross-polarization in triple-resonance magic angle spinning solid-state NMR, is improved by performing the tangential-shaped (13)C irradiation at an offset frequency that meets the Lee-Goldburg condition (LG-SPECIFIC-CP). This is demonstrated on polycrystalline samples of uniformly (13)C, (15)N labeled ...
Baron Elma D ED Department of Dermatology, University Hospitals Case Medical Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Case Western Reserve University, 11100 Euclid Avenue, Lakeside 3500, Mailstop 5028, Cleveland, OH 44106-5028, USA. Electronic address: - - 2014
Photobiology is the study of the local and systemic effects of incident radiation on living organisms. Solar radiation is made up of ultraviolet, visible and infrared radiation. Ultraviolet radiation is made up of UV-C, UV-B, and UV-A. Sun exposure can lead to sunburn, tanning, vitamin D production, photoaging, and carcinogenesis. ...
Engwall Marie M School of Health Sciences, Borås University and the Institute of Health & Caring Sciences, Academy of Sahlgrenska, University of Gothenburg, - - 2014
The present study reports findings concerning light in an intensive care unit setting presented from 3 aspects, giving a wide view. The first part is a systematic review of intervention studies concerning cycled light compared with dim light/noncycled light. The findings showed that cycled light may be beneficial to preterm ...
Kim Jun-Hyun JH Department of Chemistry, Illinois State University , Normal, Illinois 61790-4160, United - - 2014
This work describes the light-induced preparation of various gold nanoparticles and demonstrates their possible use as efficient photothermal heating materials and practical heterogeneous catalysts under the irradiation of a solar-based light after being loaded onto a paper-based substrate. The synthesis of gold nanoparticles was accomplished under the irradiation of daily ...
Specchio F F Department of Medicine, University of Rome, “Tor Vergata”, - - 2014
Ultraviolet B (UVB 290-320 nm) radiation has been used in the treatment of different skin diseases. Light sources with narrowband UVB output spectrum have been developed with the aim of increasing the rates of “beneficial to side effect” profile of the treatment. Narrowband UVB phototherapy using fluorescent lamps (TL01, 311∓2nm) ...
Nevas Saulius - - 2014
An approach is presented to characterize and correct stray light in spectra measured with array spectroradiometers and caused by out-of-spectral range radiation. A prerequisite for out-of-range stray light correction is knowledge of the spectral irradiance not measured by the instrument itself. A way of solving this problem for solar UV ...
Lázaro C A CA Faculty of Veterinary Medicine, Universidad Nacional Mayor de San Marcos, Av. Circunvalación Cdra. 28 s/n, PO Box 03-5137, San Borja, Lima, Perú Department of Food Technology, Faculty of Veterinary, Universidade Federal Fluminense, Vital Brazil Filho 64, CEP: 24230-340, Niterói, Rio de Janeiro, Brazil - - 2014
Radiation from UV-C has been demonstrated as a potential surface decontamination method in addition to several advantages over regular sanitation methods. However, UV-C radiation possibly affects the physicochemical properties of meat products. To determine the optimum exposure time for bacterial reduction, 39 chicken breasts, inoculated with a pool of Salmonella ...
Kim Nury N Center for Cognition and Sociality, Institute for Basic Science (IBS), Daejeon 305-701, Republic of - - 2014
Fibroblast growth factor receptors (FGFRs) regulate diverse cellular behaviors that should be exquisitely controlled in space and time. We engineered an optically controlled FGFR (optoFGFR1) by exploiting cryptochrome 2, which homointeracts upon blue light irradiation. OptoFGFR1 can rapidly and reversibly control intracellular FGFR1 signaling within seconds by illumination with blue ...
Qi Dianyu - - 2014
Highly sensitive surface-enhanced Raman scattering (SERS) detection was achieved on plasmon-free TiO2 photonic artificial microarray, which can be quickly recovered under simulated solar light irradiation and repeatedly used. The sensitive detection performance is attributed to the enhanced matter-light interaction through repeated and multiple light scattering in photonic microarray. Moreover, the ...
Trupkin Santiago S IFEVA, University of Buenos Aires & - - 2014
The current consensus is that plant responses to canopy shade involve the perception of low red to far-red ratios (R:FR) by phytochrome B (phyB), which leads to the direct activation of auxin synthesis genes by PHYTOCHROME INTERACTING FACTORS (PIF). In addition to its effect on R:FR, shade also reduces irradiance, ...
Postigo Agustina A Área Farmacognosia, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario, Suipacha 531, Rosario, - - 2014
Oropharyngeal candidiasis (OPC) is an infection frequent in immunocompromised patients. Photodynamic therapy is an alternative to conventional treatments, based on the utilization of compounds that inhibit or kill microorganisms only under the effect of light, process known as Photodynamic Inactivation (PDI). In the present study, PDI of Candida spp. by ...
Dong Fan F Chongqing Key Laboratory of Catalysis and Functional Organic Molecules, College of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing, 400067, P. R. China. dfctbu@126.com - - 2014
The bismuth element synthesized by a facile chemical solution method exhibited an admirable and stable photocatalytic activity towards the removal of NO under 280 nm light irradiation due to the surface plasmon resonance mediated direct photocatalysis, and most strikingly, showed a catalytic "memory" capability following illumination.
Joo Sung-Jun SJ Department of Mechanical Engineering, Hanyang University, Haengdang-dong, Seongdong-gu, Seoul 133-791, - - 2014
In this study, the size effect of copper particles on the flash light sintering of copper (Cu) ink was investigated using Cu nanoparticles (20-50 nm diameter) and microparticles (2 μm diameter). Also, the mixed Cu nano-/micro-inks were fabricated, and the synergetic effects between the Cu nano-ink and micro-ink on flash ...
Vantomme Ghislaine - - 2014
Constitutional dynamic libraries of hydrazones aAbB and acylhydrazones aAcC undergo reorganization and adaptation in response to a chemical effector (metal cations) or a physical stimulus (light). The set of hydrazones [1A1B, 1A2B, 2A1B, 2A2B] undergoes metal-loselection on addition of zinc cations which drive the amplification of Zn(1A2B)2 by selection of ...
Shima Tatsuya - - 2014
Vesicle formation is a fundamental kinetic process related to the vesicle budding and endocytosis in a cell. In the vesicle formation by artificial means, transformation of lamellar lipid aggregates into spherical architectures is a key process, and known to be prompted by e.g. heat, infrared irradiation and alternating electric field ...
Duteil Luc L Centre de Pharmacologie Clinique Appliquée à la Dermatologie (CPCAD), University hospital of Nice, - - 2014
The visible light spectrum is wide, and it can be hypothesized that all the wavelengths between 400-700nm do not induce the same photobiological effects on pigmentation. We assessed the potential pro-pigmenting effects of two single wavelengths located at both extremities of the visible spectrum: the blue/violet line (λ=415nm), and the ...
Sungkajuntranon Krisaneeya K Program in Biomedical Sciences, Khon Kaen University, - - 2014
5% Degussa P25 TiO2 was spray-coated onto black-light and white-light fluorescent lamps, using five different binders, namely DURAMAX B-1000, DURAMAX D-3005, silane-69, and two polyethylene glycols with molecular weight 1000 (PEG-1000) and 700 (PEG-700). The coated lamps were tested with Staphylococcus epidermidis, Escherichia coli, spores of Bacillus subtilis and spores ...
Li Li L Department of Polymer Science and Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 305-764, Republic of - - 2014
Poly(ethylene glycol)-b-poly(caprolactone) (PEG-b-PCL) micelles dually loaded with both pheophorbide a (PhA) as a photosensitizer and β-carotene (CAR) as a singlet oxygen ((1)O2) scavenger were designed to control photodynamic therapy (PDT) activity in cancer treatment. The CAR in the PhA/CAR micelles significantly diminished PhA-generated (1)O2 through direct (1)O2 scavenging, whereas the ...
Hamadani Behrang H - - 2014
An irradiance-mode absolute differential spectral response (SR) measurement system based on a light emitting diode (LED) array is described. The LEDs are coupled to an integrating sphere whose output irradiance is uniform to better than 2% over an area of 160 mm by 160 mm. SR measurements of solar cells when subject ...
Liu Chao C Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210093, P. R. China. - - 2014
An effective approach has been used to synthesize N-doped HTiNbO5 (denoted as N-HTiNbO5) with a better intercalation property. The synthesis of polyaniline (PANI) with N-HTiNbO5 to form PANI-N-HTiNbO5 lamellar nanocomposites by in situ polymerization using the aniline (ANI) intercalation compound ANI/N-HTiNbO5 as the intermediate has been investigated. The resulting PANI-N-HTiNbO5 ...
Uragami Chiasa C Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka, 558-8585, - - 2014
Siphonous green algae, a type of deep-sea green algae, appear olive drab and utilize blue-green light for photosynthesis. A siphonous green alga, Codium (C.) intricatum, was isolated from Okinawa prefecture in Japan, and a clonal algal culture in filamentous form was established. The major light-harvesting antenna was analogous to the ...
Li Rong R Department of Animal Science, Aarhus University, Blichers Allé 20, DK-8830, Tjele, Denmark, - - 2014
To assess irradiance and total energy dose from different microscopes during the in-vitro embryonic developmental cycle in mouse and pig and to evaluate its effect on embryonic development and quality in pig. Spectral scalar irradiance (380-1050 nm) was measured by a fiber-optic microsensor in the focal plane of a dissection microscope, ...
Shi Jian-Wen JW Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, Fujian 361021, - - 2014
Composite photocatalysts composed of nitrogen-doped anatase TiO2 plates with exposed {001} facets (NTS) and graphene nanosheets (G) were firstly synthesized by a facile one-pot hydrothermal process. The morphologies, structural properties, and photocatalytic activities of the resultant NTS/G composites were investigated in detail. Graphene nanosheets were demonstrated play three important roles ...
Naik Anu A Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zürich - - 2014
Despite the extensive use of porphyrins in photodynamic therapy (PDT), tetraplatinated porphyrins have so far not been studied for their anticancer properties. Herein, we report the synthesis of such novel platinum-porphyrin conjugates as well as their photophysical characterization and in vitro light-induced anticancer properties. These conjugates showed only minor cytotoxicity ...
Yomoda Hiroki H Graduate School of Engineering, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501 - - 2014
SRI (sensory rhodopsin I) can discriminate multiple colors for the attractant and repellent phototaxis. Studies aimed at revealing the color-dependent mechanism show that SRI is a challenging system not only in photobiology but also in photochemistry. During the photoreaction of SRI, an M-intermediate (attractant) transforms into a P-intermediate (repellent) by ...
Burdett Heidi L - - 2014
Red coralline algae are critical components of tropical reef systems, and their success and development is, at least in part, dependent on photosynthesis. However, natural variability in the photosynthetic characteristics of red coralline algae is poorly understood. This study investigated diurnal variability in encrusting Porolithon sp. and free-living Lithophyllum kotschyanum. ...
Fotiou Theodora T Laboratory of Catalytic - Photocatalytic Processes (Solar Energy - Environment), Institute of Advanced Materials, Physicochemical Processes, Nanotechnology & Microsystems, National Center for Scientific Research "Demokritos", Patriarchou Grigoriou & Neapoleos, 15310 Agia Paraskevi, Athens, - - 2014
Cyanobacteria (blue-green algae) are considered an important water quality problem, since several genera can produce toxins, called cyanotoxins that are harmful to human health. Cylindrospermopsin (CYN) is an alkaloid-like potent cyanotoxin that has been reported in water reservoirs and lakes worldwide. In this paper the removal of CYN from water ...
Hurduc Nicolae N "Gheorghe Asachi" Technical University of Iasi, Department of Natural and Synthetic Polymers, Prof. Dimitrie Mangeron Street, 73, 700050-Iasi, Romania. - - 2014
The surface relief gratings (SRGs) can be generated when azo-polymer films are exposed to laser beam interference as a result of mass migration. Despite considerable research effort over the past two decades this complex phenomenon remains incompletely understood. Here we show, for the first time, the athermal photofluidisation of azo-polysiloxane ...
Mi Yan Y Institute for Physics & IMN MacroNano® (ZIK), Technical University of Ilmenau, Prof. Schmidt-Str. 26, 98693 Ilmenau, Germany. - - 2014
Two dimensional (2D) square-like bismuth oxyiodine (BiOI) nanosheets with a thickness of about 10 nm and exposed {001} facets are obtained by a facile hydrothermal route without any surfactant and special solvent. The photocatalytic performance of as-prepared 2D square-like BiOI nanosheets is evaluated by the photodegradation of rhodamine-B (RhB), methyl ...
Takahashi Shigekazu S Department of Biomolecular Science, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba, 274-8510, - - 2014
Water-soluble chlorophyll (Chl)-binding proteins (WSCPs) have been found in various plants. WSCPs are categorized into two classes based on their photoconvertibility: Class I (photoconvertible) and Class II (non-photoconvertible). Based on their absorption peaks, which occur in the red wavelengths, the pre- and post-photoconverted forms of Chenopodium album WSCP (CaWSCP) are ...
Chen Xiaodong - - 2014
A light-responsive delivery system has been developed. It consists of gelly microspheres made of TEMPO-oxidized Konjac Glucomannan (OKGM) polymers where the carboxyl (COO-) groups are cross-linked via ferric ions (Fe3+) and in which functional ingredients may be incorporated. By irradiation with (simulated) sunlight, the microspheres degrade thereby releasing the encapsulated ...
Xue Bin B Department of Chemistry, College of Food Science and Technology, Shanghai Ocean University, China. Electronic address: - - 2014
AgI/TiO2 nanocomposites were prepared by an ultrasound-assisted precipitation process and subsequent low-temperature (350°C) calcination. The crystal phase, morphology and optical properties of the AgI/TiO2 nanocomposites were characterized by X-ray diffraction, transmission electron microscopy and UV-vis absorption spectroscopy. After calcination, the crystallite size of AgI nanoparticles in the AgI/TiO2 nanocomposites decreased, ...
Buzzá H H HH São Carlos Institute of Physics, University of São Paulo, Avenida Trabalhador São Carlense, 400, CEP: 13566-590, Caixa Postal: 369, São Carlos, SP, Brazil. Electronic address: - - 2014
Photodynamic Therapy (PDT) is a local treatment that requires a photosensitizing agent, light and molecular oxygen. With appropriate illumination, the photosensitizer is excited and produces singlet oxygen that is highly reactive and cytotoxic. Tumor vascular network is essential for the tumor growth and the understanding of vascular response mechanisms enables ...
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