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Yin Taofei T Robert D. Berlin Center for Cell Analysis and Modeling, University of Connecticut Health Center, 400 Farmington Avenue, Farmington, CT, 06030, - - 2015
Recent developments in optogenetics have extended optical control of signaling to intracellular proteins, including Rac, a small G protein in the Rho family. A blue light-sensing LOV (light, oxygen, or voltage) domain derived from Avena sativa (oat) phototropin was fused to the N-terminus of a constitutively active mutant of Rac, ...
Petropoulos Vasileios K VK Ionian University, Corfu, Greece, - - 2015
The retina of aquatic organisms has been adapted, through evolution, to the specific lighting conditions of water. The purpose of this paper is to present the major morphological and functional differences of photoreceptors between humans and aquatic organisms. Comparison of visual pathways of the nervous system between humans and aquatic ...
Dalton Brian E BE Department of Biology, University of Maryland, Baltimore County, MD 21250, USA Department of Biology, University of Maryland, College Park, MD 20742, USA - - 2014
Vision frequently mediates critical behaviours, and photoreceptors must respond to the light available to accomplish these tasks. Most photoreceptors are thought to contain a single visual pigment, an opsin protein bound to a chromophore, which together determine spectral sensitivity. Mechanisms of spectral tuning include altering the opsin, changing the chromophore ...
Rushworth Cathy M CM School of Electronics and Computer Science, University of Southampton, Highfield Campus, Southampton, SO17 1BJ, UK. - - 2014
We have developed a disposable microfluidic chip with integrated cavity mirrors comprised of two pieces of 3M Vikuiti™ enhanced specular reflector II (ESRII) film, for performing cavity-enhanced absorption spectroscopy with a white light-emitting diode (LED). Compared to measurements made with a chip without cavity mirrors, the absorption path length is ...
Ramiro Iñigo - - 2014
We present, manufacture and characterize the first demonstration of a new class of semiconductor photodetector that we call "Optically Triggered Infrared Photodetector" (OTIP). This photodetector is based on a new physical principle that allows the detection of infrared light to be switched ON and OFF by means of an external ...
Nasalevich Maxim A MA Catalysis Engineering, Department of Chemical Engineering, Delft University of Technology, Julianalaan 136, Delft, 2628 BL, The Netherlands. - - 2014
Correction for 'Enhancing optical absorption of metal-organic frameworks for improved visible light photocatalysis' by Maxim A. Nasalevich et al., Chem. Commun., 2013, 49, 10575-10577.
Karouta Cindy C Faculty of Education, Science, Technology and Mathematics, University of Canberra, Faculty of Education, Science, Technology and Mathematics, University of Canberra, Building 3, Kirinari St, University Drive, Bruce, ACT, 2617, Canberra, ACT, 2617, - - 2014
Purpose: In chicks, daily exposure to bright light (15,000 lux) retards the development of form-deprivation myopia (FDM) by roughly 60%. This study investigates whether higher light intensities increase the amount of protection against FDM, and whether protection and light intensity are correlated. Furthermore, we examined if exposure to bright light ...
McKie-Krisberg Zaid M ZM Department of Biology, Temple University, 1900 N. 12th St., Philadelphia, PA, 19122, USA, - - 2014
Antarctic phototrophs are challenged by extreme temperatures, ice cover, nutrient limitation, and prolonged periods of darkness. Yet this environment may also provide niche opportunities for phytoplankton utilizing alternative nutritional modes. Mixotrophy, the combination of photosynthesis and particle ingestion, has been proposed as a mechanism for some phytoplankton to contend with ...
Knie Christopher C Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489 Berlin - - 2014
Photochromism In their Full Paper on page 16492 ff, A. M. Brouwer, P. Saalfrank, S. Hecht, D. Bléger, and co-workers present the design and synthesis of ortho-fluoroazobenzene visible light switches together with a detailed analysis of their outstanding properties, with a particular emphasis on the remarkable thermal stability of the Z isomers.
Zhang Xu A XA Department of Mechanical and Aerospace Engineering, North Carolina State University, Raleigh, North Carolina, 27695, - - 2014
Colloidal elements have historically played a key role in "bottom-up" self-assembly processes for nanofabrication. However, these elementary components can also interact with light to generate complex intensity distributions and facilitate "top-down" lithography. Here, a nanolithography technique is demonstrated based on oblique illuminations of colloidal particles to fabricate hollow-core 3D nanostructures ...
Lau Genevieve P S GP Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne (Switzerland), Fax: - - 2014
The use of porphyrin-based photosensitizers with superior light-harvesting properties has enabled the power conversion efficiency of dye-sensitized solar cells (DSCs) to reach 13 % under full sun illumination. However, a major limitation of such devices corresponds to the volatility of the solvent used so far for the electrolyte, which prevents practical ...
Wang Guanzhi G State Key Laboratory of Crystal Materials, Shandong University, Jinan, 250100 (P.R. - - 2014
A visible-light-responsive bismuth-based metal-organic framework (Bi-mna) is demonstrated to show good photoelectric and photocatalytic properties. Combining experimental and theoretical results, a ligand-to-ligand charge transfer (LLCT) process is found to be responsible for the high performance, which gives rise to a longer lifetime of photogenerated charge carriers. Our results suggest that ...
Gaub Benjamin M BM Helen Wills Neuroscience Institute, - - 2014
Most inherited forms of blindness are caused by mutations that lead to photoreceptor cell death but spare second- and third-order retinal neurons. Expression of the light-gated excitatory mammalian ion channel light-gated ionotropic glutamate receptor (LiGluR) in retinal ganglion cells (RGCs) of the retina degeneration (rd1) mouse model of blindness was ...
Falcone M M Center for Interdisciplinary Research on Nicotine Addiction, Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA and Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, NY 14263, USA - - 2014
Previous research has clearly demonstrated that smokers associate cigarette descriptors such as 'light', 'ultra-light' and 'low tar' with reduced health risks, despite evidence showing that cigarettes with these descriptor terms do not present lower health risk. In June 2010, regulations implemented by the US Food and Drug Administration went into ...
Romain Maxime M UMR CNRS 6226, "Institut des Sciences Chimiques de Rennes", Université de Rennes 1-Campus de Beaulieu, 35042 Rennes cedex, France. - - 2014
A new high triplet organic semi-conductor based on a donor-spiro-acceptor design has been synthesised and used as a host material in high performance (EQE = 11.4%) sky blue phosphorescent organic light emitting diodes.
Gustafson Eric G EG Department of Neuroscience, University of Minnesota Medical School, 6-145 Jackson Hall, 321 Church St. SE, Minneapolis, MN, 55455, USA - - 2014
The purpose of this study was to investigate the functional properties of NMDA receptor coagonist release and to specifically evaluate whether light-evoked release mechanisms contribute to the availability of the coagonist D-serine. Two different methods were involved in our approach, including i) whole-cell recordings from identified retinal ganglion cells in ...
Vila Taissa Vieira Machado TV Instituto de Biofisica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Avenida Carlos Chagas Filho 373, Rio de Janeiro, 21941-902, - - 2014
Onychomycoses represent approximately 50 % of all nail diseases worldwide. In warmer and more humid countries like Brazil, the incidence of onychomycoses caused by non-dermatophyte molds (NDM, including Fusarium spp.) or yeasts (including Candida albicans) has been increasing. Traditional antifungal treatments used for the dermatophyte-borne disease are less effective against onychomycoses ...
Kundu Pintu K PK Department of Organic Chemistry, Weizmann Institute of Science , Rehovot 76100, - - 2014
Nature has long inspired scientists with its seemingly unlimited ability to harness solar energy and to utilize it to drive various physiological processes. With the help of man-made molecular photoswitches, we now have the potential to outperform natural systems in many ways, with the ultimate goal of fabricating multifunctional materials ...
Wong Juliet M JM Florida International University, Department of Biological Sciences, 3000 NE 151st St, North Miami, FL 33181. Electronic address: - - 2014
Bioluminescence is essential to the survival of many organisms, particularly in the deep sea where light is limited. Shrimp of the family Oplophoridae exhibit a remarkable mechanism of bioluminescence in the form of a secretion used for predatory defense. Three of the ten genera possess an additional mode of bioluminescence ...
Mamalis Andrew A *Department of Dermatology, University of California at Davis, Sacramento, California; †Dermatology Service, Sacramento VA Medical Center, Mather, California; ‡Department of Dermatology, SUNY Downstate Medical Center, Brooklyn, New - - 2014
Red light is part of the visible light spectrum that does not generate DNA adducts associated with skin cancer and photoaging and may represent a safer therapeutic modality for treatment of keloid scars and other fibrotic skin diseases. Our laboratory previously demonstrated that light-emitting diode-generated red light (LED-RL) inhibits proliferation ...
Haenel Thomas T Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Zlin, Czech Republic; Bonn-Rhein-Sieg, University of Applied Sciences, Department of Natural Sciences, Rheinbach, - - 2014
An inhomogeneous irradiance distribution from a light-curing unit (LCU) can locally cause inhomogeneous curing with locally inadequately cured and/or over-cured areas causing e.g. monomer elution or internal shrinkage stresses, and thus reduce the lifetime of dental resin based composite (RBC) restorations. The aim of the study is to determine both ...
Mordon Serge S INSERM U 703, Lille University Hospital - CHRU, France; Univ Lille Nord de France, F-59000 Lille, France. Electronic address: - - 2014
Photodynamic therapy (PDT) is considered to be a promising method for treating various types of cancer. A homogeneous and reproducible illumination during clinical PDT plays a determinant role in preventing under- or overtreatment. The development of flexible light sources would considerably improve the homogeneity of light delivery. The integration of ...
Bhunia Subhajit - - 2014
We have designed a novel nanoporous polyurea network material POP-PU, which showed aggregation induced white light emission in the presence of suitable polar solvents. This nanomaterial has been explored as pseudo-white light emitter where the polymeric luminogen moiety can interact with the suitable polar solvent leading to charge transfer. Thus, ...
Silva Júlia Dos Santos Jdos S Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brasil; Laboratório de Transmissores de Leishmanioses, Instituto Oswaldo Cruz/FIOCRUZ, Rio de Janeiro, Rio de Janeiro, Brasil. - - 2014
The objective of the present study was to identify mosquito fauna and to evaluate whether different light bulb colors influence the attraction of light traps in the Guapiaçu Ecological Reserve. Samples were obtained monthly during the period of February, 2012 to January, 2013. Centers for Disease Control (CDC) light traps ...
van Dillen Lotte F LF a Institute of Psychology, Leiden Institute for Brain and Cognition , Leiden University , Leiden , the - - 2014
In the present research we examined whether the psychological meaning of people's categorisation goals affects facial muscle activity in response to facial expressions of emotion. We had participants associate eye colour (blue, brown) with either a personality trait (extraversion) or a physical trait (light frequency) and asked them to use ...
Huang Yongchao - - 2014
With the increasingly serious environmental problems, photocatalysis has recently attracted a great deal of attention, with particular focus on water and air purification and disinfection. Herein, we show an electro-reduction strategy to improve significantly the solar absorption and donor density of BiOI nanosheet photocatalyst by introducing oxygen vacancies. These oxygen ...
Palczewska Grazyna G Department of Medical Devices, Polgenix, Inc., Cleveland, OH - - 2014
Vision relies on photoactivation of visual pigments in rod and cone photoreceptor cells of the retina. The human eye structure and the absorption spectra of pigments limit our visual perception of light. Our visual perception is most responsive to stimulating light in the 400- to 720-nm (visible) range. First, we ...
Allahverdiyeva Yagut Y Molecular Plant Biology laboratory, Department of Biochemistry, University of Turku, Turku 20520, - - 2014
Oxygenic photosynthetic organisms experience strong fluctuations in light intensity in their natural terrestrial and aquatic growth environments. Recent studies with both plants and cyanobacteria have revealed that Photosystem (PS) I is the potential target of damage upon abrupt changes in light intensity. Photosynthetic organisms have, however, developed powerful mechanisms in ...
Nießner Christine C Goethe-Universität Frankfurt, FB Biowissenschaften, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, - - 2014
Cryptochrome 1a, located in the UV/violet-sensitive cones in the avian retina, is discussed as receptor molecule for the magnetic compass of birds. Our previous immunohistochemical studies of chicken retinae with an antiserum that labelled only activated cryptochrome 1a had shown activation of cryptochrome 1a under 373 nm UV, 424 nm ...
Honkanen Anna A Department of Physics, University of Oulu, Oulu, FI-90014, Finland Biocenter Oulu, University of Oulu, Oulu, FI-90014, - - 2014
Reliable vision in dim light depends on the efficient capture of photons. Moreover, visually guided behaviour requires reliable signals from the photoreceptors to generate appropriate motor reactions. Here, we show that at behavioural low-light threshold, cockroach photoreceptors respond to moving gratings with single-photon absorption events known as 'quantum bumps' at ...
Wiltschko Roswitha R Goethe-Universität Frankfurt, FB Biowissenschaften, Max-von-Laue-Straße 13, D-60438 Frankfurt am Main, Germany - - 2014
Behavioural tests of the magnetic compass of birds and corresponding immunohistological studies on the activation of retinal cryptochrome 1a, the putative receptor molecule, showed oriented behaviour and activated Cry1a under 373 nm UV, 424 nm blue, 502 nm turquoise and 565 nm green light, although the last wavelength does not ...
Steppan Jochen J Department of Anesthesiology and Critical Care Medicine, The Johns Hopkins Medical Institutions, Baltimore, MD, - - 2014
The use of near-infrared spectroscopy (NIRS) has been increasingly adopted in cardiac surgery to measure regional cerebral oxygen saturation. This method takes advantage of the fact that light in the near-infrared spectrum penetrates tissue, including bone and muscle. Sensors are placed at fixed distances from a light emitter, and algorithms ...
Avalos Gerardo G Escuela de Biología, Universidad de Costa Rica 11501-2060 San Pedro, San José, Costa Rica The School for Field Studies, Center for Sustainable Development Studies, 100 Cummings Center, Suite 534-G Beverly, Massachusetts 01915-6239 - - 2014
• Few studies have analyzed the physiological performance of different life stages and the expression of ontogenetic niche shifts in lianas. Here, we analyzed the photosynthetic and morphological acclimation of seedlings of Stigmaphyllon lindenianum, Combretum fruticosum, and Bonamia trichantha to distinctive light conditions in a tropical dry forest and compared ...
Zhao Xuebing X Institute of Ecology and Geobotany, Yunnan University, Kunming, Yunnan 650091, - - 2014
Many migratory bird species fly during the night (nocturnal migrants) and have been shown to display some phototaxis to artificial light. During 2006 to 2009, we investigated phototaxis in nocturnal migrants at Jinshan Yakou in Xinping County (N23°56', E101°30'; 2400 m above sea-level), and at the Niaowang Mountain in Funing ...
Aubrecht Taryn G TG Department of Neuroscience, Neuroscience Research Institute, The Ohio State University Wexner Medical Center , Columbus, OH , - - 2014
During the past century, the prevalence of light at night has increased in parallel with obesity rates. Dim light at night (dLAN) increases body mass in male mice. However, the effects of light at night on female body mass remain unspecified. Thus, female mice were exposed to a standard light/dark ...
McBean Amanda L AL Department of Psychology, West Virginia University, Morgantown, WV, - - 2014
Large individual differences characterize maternal postpartum sleep and adjustment. Our goal was to explore aspects of mothers' nocturnal environments and behaviours that may explain differences in postpartum adjustment. A total of 201 mothers of infants aged 0-6 months completed an online survey with demographics, number and duration of nocturnal awakenings, caretaking ...
Chowdhury Pankaj P Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario N6A 5B9, - - 2014
In this paper, we have studied Eosin Y-sensitized sacrificial hydrogen generation with triethanolamine as electron donor in UV, visible, and solar light irradiation. Aeroxide TiO2 was loaded with platinum metal via solar photo-deposition method to reduce the electron hole recombination process. Photocatalytic sacrificial hydrogen generation was influenced by several factors ...
Iqbal Muhammad Waqas MW Department of Physics and Graphene Research Institute, Sejong University, Seoul 143-747, Korea. - - 2014
Improvement of the electrical and photoelectric characteristics is essential to achieve an advanced performance of field-effect transistors and optoelectronic devices. Here we have developed a doping technique to drastically improve electrical and photoelectric characteristics of single-layered, bi-layered and multi-layered WS2 field-effect transistors (FET). After illuminating with deep ultraviolet (DUV) light ...
Imam Saheed S Program in Cellular and Molecular Biology, University of Wisconsin, Madison, WI, - - 2014
Obtaining a better understanding of the physiology and bioenergetics of photosynthetic microbes is an important step toward optimizing these systems for light energy capture or production of valuable commodities. In this work, we analyzed the effect of light intensity on bioproduction, biomass formation, and maintenance energy during photoheterotrophic growth of ...
Stehr Jan Eric - - 2014
We report on identification and control of important non-radiative recombination centers in GaNP coaxial nanowires (NWs) grown on Si substrates, in an effort to significantly increase light emitting efficiency of these novel nanostructures promising for a wide variety of optoelectronic and photonic applications. A point defect complex, labeled as DD1 ...
Kwong C C CC School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore, - - 2014
We investigate the transient coherent transmission of light through an optically thick cold strontium gas. We observe a coherent superflash just after an abrupt probe extinction, with peak intensity more than three times the incident one. We show that this coherent superflash is a direct signature of the cooperative forward ...
Kim Young-Hoon YH Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyungbuk, 790-784, Republic of - - 2014
Bright organic/inorganic hybrid perov-skite light-emitting diodes (PrLEDs) are realized by using CH3 NH3 PbBr3 as an emitting layer and self-organized buffer hole-injection layer (Buf-HIL). The PrLEDs show high luminance, current efficiency, and EQE of 417 cd m(-2) , 0.577 cd A(-1) , and 0.125%, respectively. Buf-HIL can facilitate hole injection ...
Pu Fang F State Key Laboratory of Rare Earth Resource Utilization and Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022 (P.R. - - 2014
Artificial light-harvesting systems have received great attention for use in photosynthetic and optoelectronic devices. Herein, a system involving G-quartet-based hierarchical nanofibers generated from the self-assembly of guanosine 5'-monophosphate (GMP) and a two-step Förster resonance energy transfer (FRET) is presented that mimics natural light-harvesting antenna. This solid-state property offers advantages for ...
Petersson Lasse Per LP Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany; Peter L. Reichertz Institute for Medical Informatics, Hannover Medical School, Hannover, - - 2014
We evaluated the capability of a commercially available hand-held device that emits ultraviolet (UV) light to disinfect plain surfaces. Eight bacterial species were tested, including Clostridium difficile ribotype 027 and 3 other spore-forming species. Even bacterial spores could be successfully inactivated within a few seconds of irradiation. UV light may ...
Krysova Hana H J. Heyrovský Institute of Physical Chemistry, v.v.i. Academy of Sciences of the Czech Republic, Dolejskova 3, 18223 Prague 8, Czech Republic. - - 2014
A novel simple and versatile synthetic strategy is developed for the surface modification of boron-doped diamond. In a two-step procedure, polyethyleneimine is adsorbed on the hydrogenated diamond surface and subsequently modified with a model light-harvesting donor-π-bridge-acceptor molecule (coded ). The sensitized diamond exhibits stable cathodic photocurrents under visible-light illumination in ...
Ragazzon Giulio G Photochemical Nanosciences Laboratory, Dipartimento di Chimica "G. Ciamician", Università di Bologna, via Selmi 2, 40126 Bologna, - - 2014
Biomolecular motors convert energy into directed motion and operate away from thermal equilibrium. The development of dynamic chemical systems that exploit dissipative (non-equilibrium) processes is a challenge in supramolecular chemistry and a premise for the realization of artificial nanoscale motors. Here, we report the relative unidirectional transit of a non-symmetric ...
Andreussi Oliviero - - 2014
Plasmonic devices, such as metal nano-particles, are becoming increasingly important in spectroscopies and devices, due to their ability to enhance, even by several orders of magnitude, the photo-physical properties of neighboring systems. In particular, it was shown both theoretically and experimentally that combining nano-plasmonic devices with natural light-harvesting proteins substantially ...
Tang Zi-Rong ZR College of Chemistry, New Campus, Fuzhou University, Fuzhou 350108, P. R. - - 2014
Boron-doped reduced graphene oxide (B-RGO) synthesized by a facile one-step reflux route is able to exhibit significantly higher photocatalytic activity than non-doped RGO under visible light irradiation. New insights accounting for this photocatalytic activity improvement are discussed, which is distinctly different from the case of B-RGO nanoribbons under UV light ...
Al-Niaimi Firas - - 2014
Abstract Acne vulgaris is a common condition which remains challenging to treat in some cases. Laser and light-based therapies offer an alternative to medical therapies with the advantage of high compliance and relatively low side-effect profile. Light-based therapies in acne exert their effects through photochemical, photothermal, or a combination of ...
Xu Xiao-Yu XY Department of Chemistry, Tongji University, Shanghai 200092, China. - - 2014
One gallium carboxylate of MOF (Ga2(OH)4(C9O6H4) or MIL-124) has been synthesized by a facile solvothermal approach, and the luminescence was tuned by encapsulating lanthanide(iii)(Ln(3+)) cations into the channels through the active-COOH group in MIL-124 post-synthesis. PXRD, TEM, FTIR, and TGA were performed to determine the structure and thermal stability of ...
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