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Investigation of the chromophore binding cavity in the 11-cis acceptable microbial rhodopsin MR
17-06-2013 | Author(s): Arisa Mori , Jin Yagasaki , Michio Homma , Louisa Reissig , Yuki Sudo, Chemical Physics, 2013
Publication date: 20 June 2013 Source:Chemical Physics, Volume 419 Author(s): Arisa Mori , Jin Yagasaki , Michio Homma , Louisa Reissig , Yuki Sudo Rhodopsins are photoactive molecules functioning as photo-energy or photo-signal converters with the chromophore retinal. Recently we ...
Structure and Mechanical Properties of Spider Silk Films at the Air–Water Interface
14-06-2013 | Anne Renault; Jean-François Rioux-Dubé; Thierry Lefèvre; Sylvie Beaufils; Véronique Vié; François Paquet-Mercier; Mi ..., Langmuir, 2013
The kinetics of adsorption of solubilized spider major ampullate (MA) silk fibers at the air–water interface and the molecular structure and mechanical properties of the interfacial films formed have been studied using various physical techniques. The data show that Nephila clavipes MA ...
A tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction method to synthesize multilayered core–shell CdSe–ZnS quantum dots with extremely high quantum yield
13-06-2013 | Jun-jie Hao; Juan Zhou; Chun-yang Zhang, Chemical Communication, 2013
Multilayered ZnS shells are coated on a CdSe quantum dot (QD) core by a tri-n-octylphosphine-assisted successive ionic layer adsorption and reaction (TOP-SILAR) method. Notably, the quantum yield (QY) of obtained core–shell CdSe/ZnS QDs can reach up to 95% after coating with a 3-monolayered ...
RNA polymerase approaches its promoter without long-range sliding along DNA [Biochemistry]
11-06-2013 | Larry J. Friedman; Jeffrey P. Mumm; Jeff Gelles, Proceedings of the National Academy of Sciences current issue, 2013
Sequence-specific DNA binding proteins must quickly bind target sequences, despite the enormously larger amount of nontarget DNA present in cells. RNA polymerases (or associated general transcription factors) are hypothesized to reach promoter sequences by facilitated diffusion (FD). In FD, a ...
IJMS, Vol. 14, Pages 12367-12379: Expression and Role of GPR87 in Urothelial Carcinoma of the Bladder
10-06-2013 | Okazoe, Homare ; Zhang, Xia ; Liu, Dage ; Shibuya, Shinsuke ; Ueda, Nobufumi ; Sugimoto, Mikio ; Kakehi, Yoshiyuki, International Journal of Molecular Sciences, 2013
The orphan GPR87 has recently been matched with its ligand LPA, which is a lipid mediator with multiple physiological functions, including cancer cell proliferation. This study aimed to clarify the role of GPR87 in urothelial carcinoma of the bladder. GPR87 expression was assessed in seven ...
Dual Band Electrodes in Generator-Collector Mode: Simultaneous Measurement of Two Species
09-06-2013 | Author(s): Edward O. Barnes , Grace E.M. Lewis , Sara E.C. Dale , Frank Marken , Richard G. Compton, Journal of Electroanalytical Chemistry, 2013
Publication date: Available online 3 June 2013 Source:Journal of Electroanalytical Chemistry Author(s): Edward O. Barnes , Grace E.M. Lewis , Sara E.C. Dale , Frank Marken , Richard G. Compton A computational model for the simulation of a double band collector-generator experiment ...
Sensors, Vol. 13, Pages 7492-7504: Direct Electrochemistry of Hemoglobin at a Graphene Gold Nanoparticle Composite Film for Nitric Oxide Biosensing
07-06-2013 | Xu, Miao-Qing ; Wu, Jian-Feng ; Zhao, Guang-Chao, Sensors, 2013
A simple two-step method was employed for preparing nano-sized gold nanoparticles-graphene composite to construct a GNPs-GR-SDS modified electrode. Hemoglobin (Hb) was successfully immobilized on the surface of a basal plane graphite (BPG) electrode through a simple dropping technique. Direct ...
High precision dynamic alignment and gap control for optical near-field nanolithography
06-06-2013 | Xiaolei Wen, Luis M. Traverso, Pornsak Srisungsitthisunti, Xianfan Xu, and Euclid E. Moon, Journal of Vacuum Science & Technology B, 2013
The authors demonstrate the use of interferometric-spatial-phase-imaging (ISPI) to control a gap distance of the order of nanometers for parallel optical near-field nanolithography. In optical near-field nanolithography, the distance between the optical mask and the substrate needs to be ...
The Core-Inversible Micelles for Hydrophilic Drug Delivery
05-06-2013 | Wenzhe Huang; Changying Shi; Yu Shao; Kit S Lam; Juntao Luo, Chemical Communication, 2013
Most hydrophilic drug molecules, especially for charged molecules, do not readily penetrate cell membranes to reach their targets. A unique core-inversible micelle (CIM) formed via telodendrimers (linear PEG-block-dendritic oligo-cholic acid) in apolar solvents provides a resolution for ...
Diastereoselective Hydrogen‐Transfer Reactions: An Experimental and DFT Study
03-06-2013 | François Godin, Michel Prévost, Serge I. Gorelsky, Philippe Mochirian, Maud Nguyen, Frédérick Viens, Yvan Guindon, Chemistry - A European Journal, 2013
Abstract Radical reductions of halogenated precursors bearing a heterocycle exo (α) to the carbon‐centered radical proceed with enhanced anti‐selectivity, a phenomenon that we termed “exocyclic effect”. New experimental data and DFT calculations at the BHandHLYP/TZVP level demonstrate ...
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