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Chen Jheng-Yuan JY Department of Applied Chemistry, National Chiao Tung University , 1001 University Road, Hsinchu 30010, - - 2014
An ITO substrate with periodic surface nanostructures was used to induce strong diffusion and diffraction of incident light. The nanostructures were fabricated using nanoimprint lithography on photoresist followed by coating of the ITO layer and organic materials with uniform morphology. The nanostructures embedded into the ITO layer were found to ...
Al Mijan Mohammad M Department of Food Science and Technology, Sejong University, Seoul 143-747, - - 2014
This study was carried out to investigate the possibility of adding nanopowdered eggshell (NPES) into yogurt to improve the functionality of yogurt and the effects of adding NPES on the physicochemical, microbial, and sensory properties of the products during storage. The pH and mean lactic acid bacteria counts of NPES-added ...
Yang Qing-Yuan QY Lehn Institute of Functional Materials, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275 (China); Laboratoire de Chimie Supramoléculaire, Institut de Science et d'Ingénierie Supramoléculaires (ISIS), Université de Strasbourg, 8 allée Gaspard Monge, Strasbourg 67000 - - 2014
White-light-emitting materials and devices have attracted enormous interest because of their great potential for various lighting applications. We herein describe the light-emitting properties of a series of new difunctional organic molecules of remarkably simple structure consisting of two terminal 4-pyridone push-pull subunits separated by a polymethylene chain. They were found ...
De Maayer Pieter P Centre for Microbial Ecology and Genomics (CMEG), Department of Genetics, University of Pretoria, Pretoria, South - - 2014
Much of the Earth's surface, both marine and terrestrial, is either periodically or permanently cold. Although habitats that are largely or continuously frozen are generally considered to be inhospitable to life, psychrophilic organisms have managed to survive in these environments. This is attributed to their innate adaptive capacity to cope ...
Boron Agnieszka Karolina AK Plant Growth and Development, Biology Department, University of Antwerp, Groenenborgerlaan 122, 2020, Antwerp, - - 2014
Developmental biology studies in general benefit from model organisms that are well characterized. Arabidopsis thaliana fulfills this criterion and represents one of the best experimental systems to study developmental processes in higher plants. Light is a crucial factor that drives photosynthesis, but that also regulates plant morphogenesis. As the hypocotyl ...
Chen Min M School of Biological Sciences, University of Sydney, Sydney, New South Wales 2006 Australia; email: - - 2014
Chlorophylls are magnesium-tetrapyrrole molecules that play essential roles in photosynthesis. All chlorophylls have similar five-membered ring structures, with variations in the side chains and/or reduction states. Formyl group substitutions on the side chains of chlorophyll a result in the different absorption properties of chlorophyll b, chlorophyll d, and chlorophyll f. ...
Hopkinson Matthew N MN Organisch-Chemisches Institut, NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster (Germany), Fax: - - 2014
The photoredox activation of organic substrates with visible light is a powerful methodology that generates reactive radical species under very mild conditions. When combined with another catalytic process in a dual catalytic system, novel, visible-light-promoted transformations have been realized that do not proceed using either catalyst in isolation. In this ...
Okazaki Ayako A Division of Biological Science, Nagoya University Graduate School of Science, Furo-cho, Chikusa-ku, Nagoya, - - 2014
Recent development of optogenetic techniques, which utilize light-driven ion channels or ion pumps for controlling the activity of excitable cells, has greatly facilitated the investigation of nervous systems in vivo. A new generation of optical silencers includes outward-directed proton pumps, such as Arch, which have several advantages over currently widely ...
Petersen Sibylle S 1Research Group on Health Psychology, KU - - 2014
Adequate perception of bodily sensations is essential to protect health. However, misinterpretation of signals from within the body is common and can be fatal, for example, in asthma or cardiovascular disease. We suggest that placing interoceptive stimuli into interoceptive categories (e.g., the category of symptoms vs. the category of benign ...
Longo Giovanni G Ecole Polytechnique Fédérale de Lausanne, LPMV, Lausanne, Switzerland; Istituto Superiore di Sanità, Rome, - - 2014
Originally invented for topographic imaging, atomic force microscopy (AFM) has evolved into a multifunctional biological toolkit, enabling to measure structural and functional details of cells and molecules. Its versatility and the large scope of information it can yield make it an invaluable tool in any biologically oriented laboratory, where researchers ...
Gealageas Ronan R Institut de Chimie des Substances Naturelles, UPR 2301, Centre National de la Recherche Scientifique, Avenue de la Terrasse, 91198, Gif-sur-Yvette, - - 2014
The main analytical use of Ca(2+)-regulated photoproteins from luminous coelenterates is for real-time non-invasive visualization of intracellular calcium concentration ([Ca(2+)]i) dynamics in cells and whole organisms. A limitation of this approach for in vivo deep tissue imaging is the fact that blue light emitted by the photoprotein is highly absorbed ...
Pellet Norman N Laboratory of Photonics and Interfaces, Department of Chemistry and Chemical Engineering, Swiss Federal Institute of Technology, Station 6, 1015 Lausanne (Switzerland); Max-Planck-Institute for Solid-State Research, Heisenbergstrasse 1, 70569 Stuttgart - - 2014
Hybrid organic-inorganic lead halide perovskite APbX3 pigments, such as methylammonium lead iodide, have recently emerged as excellent light harvesters in solid-state mesoscopic solar cells. An important target for the further improvement of the performance of perovskite-based photovoltaics is to extend their optical-absorption onset further into the red to enhance solar-light ...
Nussinovitch Udi U Sohnis Family Research Laboratory for Cardiac Electrophysiology and Regenerative Medicine; the Rappaport Faculty of Medicine and Research Institute, Technion - Israel Institute of - - 2014
Optogenetics approaches, utilizing light-sensitive proteins, have emerged as unique experimental paradigms to modulate neuronal excitability. We aimed to evaluate whether a similar strategy could be used to control cardiac-tissue excitability.Methods and ResultsA combined cell and gene therapy strategy was developed in which fibroblasts were transfected to express the light-activated depolarizing ...
Sato-Takabe Yuki Y Graduate School of Environmental Science, Hokkaido - - 2014
This paper describes the photosynthetic response of a Roseobacter strain of marine aerobic anoxygenic phototrophicbacteria to an organic substrate limitation. In batch cultures, higher values of the spheroidenone/bacteriochlorophyll a ratio were observed under substrate-deficient conditions. Interestingly, the maximum photochemical quantum efficiencies of the photosystem under substrate-deficient conditions using blue or ...
Liscum Emmanuel E Division of Biological Sciences, University of Missouri, Columbia, Missouri - - 2014
Phototropism, or the differential cell elongation exhibited by a plant organ in response to directional blue light, provides the plant with a means to optimize photosynthetic light capture in the aerial portion and water and nutrient acquisition in the roots. Tremendous advances have been made in our understanding of the ...
Zhang Chuan C Key Laboratory of New Materials and Facilities for Rural Renewable Energy (Henan Agricultural University), Ministry of Agriculture of China, Henan Agricultural University, Zhengzhou, China; Institute of Electric Power, North China University of Water Resources and Electric Power, Zhengzhou, - - 2014
In this work, effects of mass transfer and light intensity on performance of substrate biodegradation by cell-immobilized photosynthetic bacteria were investigated within an annular fiber-illuminating bioreactor (AFIBR). In AFIBR, stable biofilm of photosynthetic bacteria was generated on the surface of side-glowing optical fiber to provide sufficient light supply and uniform ...
Huang Sizhou S Development and Regeneration Key Laboratory of Sichuan Province, Department of Anatomy and Histology and Embryology, Chengdu Medical College, Chengdu, China; Key Laboratory of Freshwater Fish Reproduction and Development, Ministry of Education, Laboratory of Molecular Developmental Biology, School of Life Sciences, Southwest University, Beibei, Chongqing, - - 2014
Disruption of Nodal in the lateral plate mesoderm (LPM) usually leads to left-right (LR) patterning defects in multiple organs. However, whether the LR patterning of organs is always regulated in a coupled way has largely not yet been elucidated. In addition, whether other crucial regulators exist in the LPM that ...
Palghat Udayashankar Arun A AK Neurobiologie und Biosensorik, Institute for Cell Biology and Neuroscience, Goethe University, Frankfurt/Main, - - 2014
Travelling waves are the physical basis of frequency discrimination in many vertebrate and invertebrate taxa, including mammals, birds, and some insects. In bushcrickets (Tettigoniidae), the crista acustica is the hearing organ that has been shown to use sound-induced travelling waves. Up to now, data on mechanical characteristics of sound-induced travelling ...
van Herpt Jochem T JT Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen - - 2014
A new responsive material composed of an amphiphilic light-switchable dithienylethene unit functionalized with a hydrophobic cholesterol unit and a hydrophilic poly(ethylene glycol)-modified pyridinium group has been designed. This unique single-molecule system shows responsive light-switchable self-assembly in both water and organic solvents. Light-triggered reversible vesicle formation in aqueous solutions is reported. ...
Huang Zheng-Yu ZY Department of Materials Science and Engineering, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, 30013, Taiwan. - - 2014
By introduction of nano-structured crystallite capping layers, the power conversion efficiency of top-illumination organic solar cells is improved from 4.2 ± 0.1% to 6.0 ± 0.2%, representing a 44% enhancement. This is caused by the increase in JSC and led by the enhancement in the local E distribution inside the ...
Niedzwiedzki Dariusz M - - 2014
BChl f is a photosynthetic pigment predicted nearly 40 years ago as a fourth potential member of the Chlorobium chlorophylls family (BChl c, d and e). However, this pigment still has not been found in a naturally-occurring organism. These pigments are utilized by anoxygenic green photosynthetic bacteria for assembly of ...
Heinke Lars - - 2014
The remote control of surface properties is one of the key challenges in interfacial systems chemistry. Here, we report the realization of a SURMOF (surface-mounted metal organic framework)-based hybrid system in which a crucial component can be switched by light. The realization of this two-component system is made possible by ...
Kong Dali D Department of Mathematical Sciences, University of Exeter Exeter, - - 2014
We investigate the swimming motion of rod-shaped magnetotactic bacteria affiliated with the Nitrospirae phylum in a viscous liquid under the influence of an externally imposed, time-dependent magnetic field. By assuming that fluid motion driven by the translation and rotation of a swimming bacterium is of the Stokes type and that ...
Ebenhöh Oliver O Institute for Complex Systems and Mathematical Biology, University of Aberdeen, , Meston Building, Old Aberdeen, Aberdeen AB24 3UE, - - 2014
Photosynthetic eukaryotes house two photosystems with distinct light absorption spectra. Natural fluctuations in light quality and quantity can lead to unbalanced or excess excitation, compromising photosynthetic efficiency and causing photodamage. Consequently, these organisms have acquired several distinct adaptive mechanisms, collectively referred to as non-photochemical quenching (NPQ) of chlorophyll fluorescence, which ...
Englund Elias E Microbial Chemistry, Department of Chemistry, Ångström and Science for Life Laboratory, Uppsala University, Uppsala, - - 2014
In recent years, there has been an increased interest in the research and development of sustainable alternatives to fossil fuels. Using photosynthetic microorganisms to produce such alternatives is advantageous, since they can achieve direct conversion of carbon dioxide from the atmosphere into the desired product, using sunlight as the energy ...
Sanchez-Barcelo Emilio J - - 2013
This article reviews the more recent patents in three kinds of therapeutic strategies using the application of visible light to irradiate photosensible substances (PSs) of different natures. The light-activation of these PSs is directly responsible for the desired therapeutic effects. This group of light therapies includes photodynamic therapy (PDT), photothermal ...
Zhang Yan Y Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, University of Jinan, Jinan 250022, PR China. - - 2013
ZnO nanorods inorganic-organic heterostructured light-emitting diodes have been demonstrated on a cheap/disposable paper substrate and applied in multiplexed photoelectrochemical immunoassay.
Schmid Günter G Siemens AG, Corporate Technology, Guenther-Scharowsky-Strasse 1, 91058, Erlangen, - - 2014
Volatile copper(I) benzoates with variable degrees of fluorination are used for p-doping of organic hole-transport layers in single-carrier devices, charge-generation layers, and in organic light-emitting diodes. The charge-transport abilities of the doped materials correlate with the degree and position of the fluorination on the aromatic ring of the carboxylate groups.
Nam Hye Jin HJ Department of Chemistry, Institute of Basic Sciences, Sungkyunkwan Advanced Institute of Nano Technology, Sungkyunkwan University, Suwon 440-746, South Korea. - - 2013
A polydopamine (PDA) thin film with a dense and conformal surface was prepared under optimized deposition conditions using O2 gas as an oxygen source. The PDA-based organic phototransistors exhibited high photosensitivity and photo-controlled switching properties under light illumination.
Wolfe Gordon V GV Dept. Biological Sciences, California State Univ. Chico, Chico, CA 95929-0515, USA. Electronic address: - - 2013
We describe the construction of temperature-light gradient incubator with a novel material: a thermally-conductive graphite foam that is lightweight, chemically resistant, economically competitive with metal, and much cheaper to fabricate. We combined this material with a variable-intensity LED light array to construct a low-cost light-temperature gradient incubator, and demonstrate its ...
Bienertová-Vašků Julie J Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno 625 00, Czech Republic; Department of Paediatric Oncology, University Hospital Brno, Brno 613 00, Czech Republic; Central-European Technological Institute, Brno, Czech Republic; Regional Centre for Applied Molecular Oncology, Brno, Czech Republic. Electronic address: - - 2013
Epigenetic changes are generally based on the switching of alternative functional or structural states and result in the adaptation of cellular expression patterns during proliferation, differentiation or plastic changes in the adult organism, whereas some epigenetic information can be passed on other generations while other is not. Hence, the principal ...
Gouveia Luísa L Laboratório Nacional de Energia e Geologia, I.P. Unidade de Bioenergia, Estrada do Paço do Lumiar, 1649-038 Lisboa, - - 2013
This study demonstrates the simultaneous production of bioelectricity and added-value pigments in a Photosynthetic Alga Microbial Fuel Cell (PAMFC). A PAMFC was operated using Chlorella vulgaris in the cathode compartment and a bacterial consortium in the anode. The system was studied at two different light intensities and the maximum power ...
Lee Jonghee - - 2013
We report on the characteristics of enhanced and balanced white-light emission from bi-directional organic light-emitting diodes (BiOLEDs) enabled by the introduction of micro-cavity effects. The insertion of an additional metal layer between the indium tin oxide anode and the hole transporting layer results in similar light output of our BiOLEDs ...
Mativetsky Jeffrey M - - 2013
Efficient out-of-plane charge transport is required in vertical device architectures, such as organic solar cells and organic light emitting diodes. Here, we show that graphene, transferred onto different technologically-relevant substrates, can be used to induce face-on molecular stacking and improve out-of-plane hole transport in copper phthalocyanine thin films.
Pushkin Dmitri O - - 2013
We consider the tracer diffusion D_{rr} that arises from the run-and-tumble motion of low Reynolds number swimmers, such as bacteria. Assuming a dilute suspension, where the bacteria move in uncorrelated runs of length λ, we obtain an exact expression for D_{rr} for dipolar swimmers in three dimensions, hence explaining the ...
Lang Xianjun - - 2013
The future development of chemistry entails environmentally friendly and energy sustainable alternatives for organic transformations. Visible light photocatalysis can address these challenges, as reflected by recent intensive scientific endeavours to this end. This review covers state-of-the-art accomplishments in visible-light-induced selective organic transformations by heterogeneous photocatalysis. The discussion comprises three sections ...
Hill Eric H - - 2013
Cationic oligo-p-phenylene ethynylenes are highly effective light-activated biocides that deal broad-spectrum damage to a variety of pathogens, including bacteria. A potential problem arising in the long-term usage of these compounds is photochemical breakdown, which nullifies their biocidal activity. Recent work has shown that these molecules complex with oppositely-charged surfactants, and ...
Peyer Suzanne M - - 2013
The squid Euprymna scolopes has evolved independent sets of tissues capable of light detection, including a complex eye and a photophore or 'light organ', which houses the luminous bacterial symbiont Vibrio fischeri. As the eye and light organ originate from different embryonic tissues, we examined whether the eye-specification genes, pax6, ...
Nishide Shin-Ya - - 2013
To explore developmental changes in circadian organization of central and peripheral oscillators, circadian rhythms in clock gene expression were examined in 12 organs in transgenic rats carrying a bioluminescence reporter for Per2. Organ slices were obtained from different developmental stages starting at postnatal day 5 and tissue was cultured for ...
Claassens Nico J - - 2013
A wide range of proton-pumping rhodopsins (PPRs) have been discovered in recent years. Using a synthetic biology approach, PPR photosystems with different features can be easily introduced in nonphotosynthetic microbial hosts. PPRs can provide hosts with the ability to harvest light and drive the sustainable production of biochemicals or biofuels. ...
Muller A - - 2013
Extracorporeal high-intensity focused ultrasound (HIFU) is a minimally invasive therapy considered with increased interest for the ablation of small tumors in deeply located organs while sparing surrounding critical tissues. A multitude of preclinical and clinical studies have showed the feasibility of the method; however, concurrently they showed several obstacles, among ...
Park Jae Hyo - - 2013
In this work, non-volatile memory thin-film transistor (NVM-TFT) was fabricated by nickel silicide-induced laterally crystallized (SILC) polycrystalline silicon (poly-Si) as the active layer. The nickel seed silicide-induced crystallized (SIC) poly-Si was used as storage layer which is embedded in the gate insulator. The novel unit pixel of active matrix organic ...
Nasu Keiro - - 2013
Efficient thermally activated delayed fluorescence was observed from a spiro-anthracenone derivative (ACRSA). An organic light-emitting diode containing ACRSA exhibited blue-greenish electroluminescence with a maximum external quantum efficiency of 16.5%.
Reshak A H - - 2013
The potential of organic semiconductor based devices for light generation is demonstrated by the commercialisation of display technologies using organic light emitting diode (OLED). In OLED, organic materials plays an important role of emitting light once the current is passed through. However OLED have drawbacks whereby it suffers from photon ...
Vatansever Fatma - - 2013
Biological warfare and bioterrorism is an unpleasant fact of 21st century life. Highly infectious and profoundly virulent diseases may be caused in combat personnel or in civilian populations by the appropriate dissemination of viruses, bacteria, spores, fungi or toxins. Dissemination may be airborne, waterborne, or by contamination of food or ...
Yuan Yongbo - - 2013
High sensitivity photodetectors in ultraviolet (UV) and infrared (IR) range have broad civilian and military applications. Here we report on an un-cooled solution-processed UV-IR photon counter based on modified organic field-effect transistors. This type of UV detectors have light absorbing zinc oxide nanoparticles (NPs) sandwiched between two gate dielectric layers ...
Wang Hanyu - - 2013
Here we demonstrate the feasibility of continuous, self-sustained hydrogen gas production based solely on solar light and biomass (wastewater) recycling, by coupling solar water splitting and microbial electrohydrogenesis in a photoelectrochemical cell-microbial fuel cell (PEC-MFC) hybrid device. The PEC device is composed of a TiO2 nanowire-arrayed photoanode and a Pt ...
Christie Kevin W KW Biology Department, University of Iowa, Iowa City, IA - - 2013
Noise-induced hearing loss (NIHL) is a growing health issue, with costly treatment and lost quality of life. Here we establish Drosophila melanogaster as an inexpensive, flexible, and powerful genetic model system for NIHL. We exposed flies to acoustic trauma and quantified physiological and anatomical effects. Trauma significantly reduced sound-evoked potential ...
Pfanner Florian - - 2013
Purpose: To avoid motion artifacts in medical imaging or to minimize the exposure of healthy tissues in radiation therapy, medical devices are often synchronized with the patient's respiratory motion. Today's respiratory motion monitors require additional effort to prepare the patients, e.g., mounting a motion belt or placing an optical reflector ...
Marcano Aristides - - 2013
We measured the photothermal lens signal in samples exhibiting high turbidity using a pump-probe scheme. We show that the photothermal lens signal properties remain nearly unchanged up to values of turbidity of 6 cm(-1) despite the signal reduction due to the decrease of excitation power associated to turbidity losses. The ...
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