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Semiconductors: Growth of Large‐Area 2D MoS2(1‐x)Se2xSemiconductor Alloys (Adv. Mater. 17/2014)

Advanced materials 2014年第17期26卷

作者： Qingliang Feng Yiming Zhu Jinhua Hong Mei Zhang Wenjie Duan Nannan Mao Juanxia Wu Hua Xu Fengliang Dong Fang Lin Chuanhong Jin Chunming Wang Jin Zhang Liming Xie Center for Nanochemistry Beijing National Laboratory for Molecular Sciences Key Laboratory for the Physics and Chemistry of Nanodevices State Key Laboratory for Structural Chemistry of Unstable and Stable Species College of Chemistry and Molecular Engineering Peking University Beijing 100871 P. R. China CAS Key Laboratory of Standardization and Measurement for Nanotechnology National Center for Nanoscience and Technology Beijing 100190 P. R. China School of Chemistry and Chemical Engineering Lanzhou University Lanzhou 730000 P. R. China State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province and Department of Materials Science and Engineering Zhejiang University Hangzhou 310027 P. R. China College of Science South China Agricultural University Guangzhou 510642 P. R. China

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Radiative transport produced by oblique illumination of turbid media with collimated beams

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Physical Review E 2013年第6期87卷 063308-063308页

作者： Adam R. Gardner Arnold D. Kim Vasan Venugopalan Department of Chemical Engineering and Materials Science University of California Irvine Irvine California 92697 USA Laser Microbeam and Medical Program Beckman Laser Institute University of California Irvine Irvine California 92697 USA Applied Mathematics Unit School of Natural Sciences University of California Merced 5200 North Lake Road Merced California 95343 USA

We examine the general problem of light transport initiated by oblique illumination of a turbid medium with a collimated beam. This situation has direct relevance to the analysis of cloudy atmospheres, terrestrial surfaces, soft condensed matter, and biological tissues. We introduce a solution approach to the equation of radiative transfer that governs this problem, and develop a comprehensive spherical harmonics expansion method utilizing Fourier decomposition (SHEFN). The SHEFN approach enables the solution of problems lacking azimuthal symmetry and provides both the spatial and directional dependence of the radiance. We also introduce the method of sequential-order smoothing that enables the calculation of accurate solutions from the results of two sequential low-order approximations. We apply the SHEFN approach to determine the spatial and angular dependence of both internal and boundary radiances from strongly and weakly scattering turbid media. These solutions are validated using more costly Monte Carlo simulations and reveal important insights regarding the evolution of the radiant field generated by oblique collimated beams spanning ballistic and diffusely scattering regimes.

关键词： MONTE Carlo method COLLIMATED light TURBIDITY RADIATIVE transfer RADIATION OPTICAL properties

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Neo‐Fused Hexaphyrin: A molecular Puzzle Containing an N‐Linked Pentaphyrin†

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Angewandte Chemie 2014年第51期126卷

作者： Pingchun Wei Kai Zhang Xin Li Deying Meng Hans Ågren Zhongping Ou Seikweng Ng Hiroyuki Furuta Yongshu Xie Key Laboratory for Advanced Materials and Institute of Fine Chemicals East China University of Science & Technology Shanghai 200237 (P. R. China) Department of Theoretical Chemistry and Biology School of Biotechnology KTH Royal Institute of Technology SE‐10691 Stockholm (Sweden) School of Chemistry & Chemical Engineering Jiangsu University Zhenjiang 212013 (P. R. China) Department of Chemistry University of Malaya Kuala Lumpur and Chemistry Department King Abdulaziz University (Saudi Arabia) Center for Molecular Systems Department of Chemistry and Biochemistry Graduate School of Engineering Kyushu University Fukuoka 819‐0395 (Japan)

The first neo‐confused hexaphyrin(1.1.1.1.1.0) was synthesized by oxidative ring closure of a hexapyrrane bearing two terminal “confused” pyrroles. The new compound displays a folded conformation with a short interpyrrolic C⋅⋅⋅N distance of 3.102 Å, and thus it readily underwent ring fusion to afford a neo‐fused hexaphyrin with an unprecedented 5,5,5,7‐tetracyclic ring structure. Furthermore, coordination of Cu II triggered a ring opening/contracting reaction to afford a Cu II complex of an N‐linked pentaphyrin derivative. The roles of reactive N  C bonds in the porphyrinoid macrocycles were demonstrated.

关键词： Hexaphyrine Kondensierte Ringe Makrocyclen Pentaphyrine Porphyrinoide

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Publisher's Note: “Communication: molecular-level insights into asymmetric triblock copolymers: Network and phase development” [J. Chem. Phys. 141, 121103 (2014)]

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The Journal of chemical Physics 2014年第16期141卷

作者： Syamal S. Tallury Kenneth P. Mineart Sebastian Woloszczuk David N. Williams Russell B. Thompson Melissa A. Pasquinelli Michal Banaszak Richard J. Spontak 1Department of Materials Science and Engineering North Carolina State University Raleigh North Carolina 27695 USA 2Fiber and Polymer Science Program North Carolina State University Raleigh North Carolina 27695 USA 3Department of Chemical and Biomolecular Engineering North Carolina State University Raleigh North Carolina 27695 USA 4Faculty of Physics Adam Mickiewicz University 61-614 Poznan Poland 5Department of Physics and Astronomy and Waterloo Institute for Nanotechnology University of Waterloo Waterloo Ontario N2L 3G1 Canada

This article was originally published online on 29 September 2014 with an error in the journal title of Ref. 36. The corrected reference appears below:

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Synthesis, Structure, and Properties of Two Supramolecular Compounds Based on Silicotungstic Acid and Transition Metal（ll） Coordinated Isonicotinic Acid

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Chinese Journal of Chemistry 2012年第4期30卷 759-764页

作者：孔祖萍王春玲任远航辜敏胡怡晨岳斌贺鹤勇 Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials Institute of CatalysisFudan UniversityShanghai 200433China State Key Laboratory Base of Novel Functional Materials andPreparation Science Faculty of Materials Science and Chemical EngineeringNingbo UniversityNingboZhejiang 315211China

Two compounds, namely [Cd（HINA）2（μ2-H2O）（H2O）2]2[SiW1240].6H2O （1） and [Co（HINA）3（HzO）3]- [Co（HINA）2（H2O）4][SiW12O40]·2H2O （2）, have been synthesized from the aqueous mixture containing H4SiW12040, isonicotinic acid （HINA）, and M（CH3COO）2 （M=Cd and Co）. The compounds have been characterized by ele- mental analysis, IR spectroscopy, TG analysis, and single-crystal X-ray diffraction. The dinuclear coordinated cad- mium units in compound 1 are linked to form 2D layer parallel to ab plane through n-n interactions and hydrogen bonds. Compound 2 contains two different types of coordinated metal cations, [Co（HINA）3（HaO）3]2＋ and [Co（HINA）2（H2O）4]2＋, which construct 2D layer along be plane through π-π interactions and hydrogen bonds. In both compounds, the Keggin anions are located inside the channels and cavities formed from stack of the coordi- nated metal cations, which further achieve the 3D supramolecular structure through hydrogen bonds. The lumines- cent property of compounds 1 and 2 has been investigated.

关键词： polyoxometalates HINA transition metal ions crystal structure

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Combined Measurement of the Higgs Boson Mass in pp Collisions at s=7 and 8 TeV with the ATLAS and CMS Experiments

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Physical Review Letters 2015年第19期114卷 191803-191803页

作者： G. Aad B. Abbott J. Abdallah O. Abdinov R. Aben M. Abolins O. S. AbouZeid H. Abramowicz H. Abreu R. Abreu Y. Abulaiti B. S. Acharya L. Adamczyk D. L. Adams J. Adelman S. Adomeit T. Adye A. A. Affolder T. Agatonovic-Jovin J. A. Aguilar-Saavedra S. P. Ahlen F. Ahmadov G. Aielli H. Akerstedt T. P. A. Åkesson G. Akimoto A. V. Akimov G. L. Alberghi J. Albert S. Albrand M. J. Alconada Verzini M. Aleksa I. N. Aleksandrov C. Alexa G. Alexander T. Alexopoulos M. Alhroob G. Alimonti L. Alio J. Alison S. P. Alkire B. M. M. Allbrooke P. P. Allport A. Aloisio A. Alonso F. Alonso C. Alpigiani A. Altheimer B. Alvarez Gonzalez D. Álvarez Piqueras M. G. Alviggi B. T. Amadio K. Amako Y. Amaral Coutinho C. Amelung D. Amidei S. P. Amor Dos Santos A. Amorim S. Amoroso N. Amram G. Amundsen C. Anastopoulos L. S. Ancu N. Andari T. Andeen C. F. Anders G. Anders J. K. Anders K. J. Anderson A. Andreazza V. Andrei S. Angelidakis I. Angelozzi P. Anger A. Angerami F. Anghinolfi A. V. Anisenkov N. Anjos A. Annovi M. Antonelli A. Antonov J. Antos F. Anulli M. Aoki L. Aperio Bella G. Arabidze Y. Arai J. P. Araque A. T. H. Arce F. A. Arduh J-F. Arguin S. Argyropoulos M. Arik A. J. Armbruster O. Arnaez V. Arnal H. Arnold M. Arratia O. Arslan A. Artamonov G. Artoni S. Asai N. Asbah A. Ashkenazi B. Åsman L. Asquith K. Assamagan R. Astalos M. Atkinson N. B. Atlay B. Auerbach K. Augsten M. Aurousseau G. Avolio B. Axen M. K. Ayoub G. Azuelos M. A. Baak A. E. Baas C. Bacci H. Bachacou K. Bachas M. Backes M. Backhaus E. Badescu P. Bagiacchi P. Bagnaia Y. Bai T. Bain J. T. Baines O. K. Baker P. Balek T. Balestri F. Balli E. Banas Sw. Banerjee A. A. E. Bannoura H. S. Bansil L. Barak S. P. Baranov E. L. Barberio D. Barberis M. Barbero T. Barillari M. Barisonzi T. Barklow N. Barlow S. L. Barnes B. M. Barnett R. M. Barnett Z. Barnovska A. Baroncelli G. Barone A. J. Barr F. Barreiro J. Barreiro Guimarães da Costa R. Bartoldus A. E. Barton P. Bartos A. Bassalat A. Basye R. L. Bates S. J. Batista J. R. Batley M. Battaglia M. Bauce F. Bauer H. S. Bawa J. B. Beach CPPM Aix-Marseille Université and CNRS/IN2P3 Marseille France Homer L. Dodge Department of Physics and Astronomy University of Oklahoma Norman Oklahoma USA Institute of Physics Academia Sinica Taipei Taiwan Institute of Physics Azerbaijan Academy of Sciences Baku Azerbaijan Nikhef National Institute for Subatomic Physics and University of Amsterdam Amsterdam Netherlands Department of Physics and Astronomy Michigan State University East Lansing Michigan USA Department of Physics University of Toronto Toronto Ontario Canada Raymond and Beverly Sackler School of Physics and Astronomy Tel Aviv University Tel Aviv Israel Department of Physics Technion: Israel Institute of Technology Haifa Israel CERN Geneva Switzerland Department of Physics Stockholm University Sweden The Oskar Klein Centre Stockholm Sweden INFN Gruppo Collegato di Udine Sezione di Trieste Udine Italy ICTP Trieste Italy AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow Poland Physics Department Brookhaven National Laboratory Upton New York USA Department of Physics Northern Illinois University DeKalb Illinois USA Fakultät für Physik Ludwig-Maximilians-Universität München München Germany Particle Physics Department Rutherford Appleton Laboratory Didcot United Kingdom Oliver Lodge Laboratory University of Liverpool Liverpool United Kingdom Institute of Physics University of Belgrade Belgrade Serbia Laboratorio de Instrumentacao e Fisica Experimental de Particulas-LIP Lisboa Portugal Departamento de Fisica Teorica y del Cosmos and CAFPE Universidad de Granada Granada (Spain) Portugal Department of Physics Boston University Boston Massachusetts USA Joint Institute for Nuclear Research JINR Dubna Dubna Russia INFN Sezione di Roma Tor Vergata Roma Italy Dipartimento di Fisica Università di Roma Tor Vergata Roma Italy Fysiska institutionen Lunds universitet Lund Sweden International Center for Elementary Particle Physics and Depart

A measurement of the Higgs boson mass is presented based on the combined data samples of the ATLAS and CMS experiments at the CERN LHC in the H→γγ and H→ZZ→4ℓ decay channels. The results are obtained from a simultaneous fit to the reconstructed invariant mass peaks in the two channels and for the two experiments. The measured masses from the individual channels and the two experiments are found to be consistent among themselves. The combined measured mass of the Higgs boson is mH=125.09±0.21 (stat)±0.11 (syst) GeV.

关键词： HIGGS bosons RESEARCH COLLISIONS (Nuclear physics) ATLAS (Computer program language) REST mass (Relativity) BOSONS

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Analysis of samples excavated from a royal tomb in El Zotz: Application of materials science characterization techniques in archaeology

Analysis of samples excavated from a royal tomb in El Zotz: ...

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作者： Cheung, Kristina A. Xie, Nuoya Yao, Zhaoying Houston, Stephen Newman, Sarah Román-Ramírez, Edwin René Garrison, Thomas Fischer, Christian Muros, Vanessa Prikhodko, Sergey Kakoulli, Ioanna Department of Materials Science and Engineering University of California Los Angeles 410 Westwood Plaza Los Angeles CA 90095 United States Department of Chemical Engineering University of California Los Angeles 5531 Boelter Hall Los Angeles CA 90095-1592 United States Department of Anthropology Brown University 128 Hope Street Providence RI 02912 United States Teresa Lozano Long Institute of Latin American Studies University of Texas at Austin Austin TX 78712 United States Department of Anthropology Grace Ford Salvatori Hall University of Southern California Los Angeles CA 90089 United States UCLA/Getty Conservation Program Cotsen Institute of Archaeology University of California Los Angeles A410 Fowler Building Los Angeles CA 90095-1510 United States

ISBN: (纸本)9780841229242

This project focuses on the characterization of materials from burial offerings and painted decoration in a royal Maya tomb at El Zotz, Guatemala, and their association with mortuary rituals. Archaeological findings included vessels, jade masks, organic materials (wood, cord, and textiles), specular hematite cubes, shells with powdered cinnabar, green (malachite) painted stucco assumed to have decorated the wooden bier where the king was resting, and caches of lip-to-lip Aguila Orange bowls containing human phalanges. In this paper we describe preliminary findings from non-invasive and non-destructive analytical techniques including XRF, VPSEM-EDS, and XRD, emphasizing the potential of these combined technologies in the identification of organic and inorganic markers to infer burial customs. The nature and location of the findings, the evidence of pigment coloration on the bones employing hematite and cinnabar, and the indication of exposure of the bones to high temperatures suggest highly complex, even protracted mortuary practices of Maya elite. Copyright © 2013 American chemical Society.

关键词： Bone

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Graphene-CdS composites with visible-light photocatalytic activity in degrading methylene blue

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Nanoscience and Nanotechnology - Asia 2012年第2期2卷 79-89页

作者： Xiong, Zhigang Zhang, Li L. Zhang, Jintao Zhao, Xiu S. School of Chemical Engineering The University of Queensland St Lucia QLD 4072 Australia Department of Chemical and Biomolecular Engineering National University of Singapore 4 Engineering Drive 4 117576 Singapore Department of Mechanical Engineering and the Materials Science and Engineering Program The University of Texas at Austin One University Station C2200 Austin TX 78712 United States School of Chemical and Biomedical Engineering Nanyang Technological University 70 Nanyang Drive Singapore 637457 Singapore

This paper reports a facile method for the preparation of graphene-based composite materials consisting of reduced graphene oxide (RGO) and CdS nanoparticles. Both CdS and the RGO-CdS composite were prepared in aqueous medium and without the use of obnoxious organic solvent. The synthetic method was based on the reduction of graphene oxide (GO) by photoexcited electrons from semiconductor CdS. The RGO with a high charge mobility served as a rigid support for the CdS particles, while the CdS particles on the other hand played a role of preventing the RGO sheets from aggregations. The RGO-CdS composites displayed a higher photocatalytic activity towards degrading of methylene blue (MB) under visible light as compared to pristine CdS because of the enhanced adsorption of MB on the RGO sheets and retarded electron-hole recombination rate. © 2012 Bentham science Publishers.

关键词： Cadmium sulfide

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Computational analysis of spatiotemporal molecular hierarchy in single live cells

Computational analysis of spatiotemporal molecular hierarchy...

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第五届中美生物医学工程暨海内外生物力学学术研讨会

作者： Shaoying Lu Jihye Seong Yi Wang Shiou-chi Chang John Paul Eichorst Mingxing Ouyang Yingxiao Wang Department of Bioengineering Beckman Institute for Advanced Science and TechnologyDepartment of Molecular and Integrative PhysiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA Department of Bioengineering University of California San DiegoLa JollaCA 92093USA. Neuroscience Program Beckman Institute for Advanced Science and TechnologyDepartment of Molecular and Integrative PhysiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA Department of Chemical Engineering Beckman Institute for Advanced Science and TechnologyDepartment of Molecular and Integrative PhysiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA Center of Biophysics and Computational Biology Beckman Institute for Advanced Science and TechnologyDepartment of Molecular and Integrative PhysiologyUniversity of Illinois at Urbana-ChampaignUrbanaIL 61801USA

Genetically encoded biosensors based on fluorescence resonance energy transfer(FRET) have been widely applied to visualize the molecular activity in live cells with high spatiotemporal *** enormous amount of video images and the complex dynamics of signaling events present tremendous challenges for data analysis and demand the development of intelligent and automated imaging analysis methods specifically envisioned for the studies of live cell *** have developed a general correlative FRET imaging method(CFIM) to quan-

关键词： Computational analysis of spatiotemporal molecular hierarchy in single live cells

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A brain tumor molecular imaging strategy using a new triple-modality MRI-photoacoustic-Raman nanoparticle

A brain tumor molecular imaging strategy using a new triple-...

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Photons Plus Ultrasound: Imaging and Sensing 2013

作者： De La Zerda, Adam Kircher, Moritz F. Jokerst, Jesse V. Zavaleta, Cristina L. Kempen, Paul J. Mittra, Erik Pitter, Ken Huang, Ruimin Campos, Carl Habte, Frezghi Sinclair, Robert Brennan, Cameron W. Mellinghoff, Ingo K. Holland, Eric C. Gambhir, Sanjiv S. Molecular Imaging Program at Stanford Department of Radiology Stanford University Stanford CA 94305 United States Department of Electrical Engineering Stanford University Stanford CA 94305 United States Department of Radiology Memorial Sloan-Kettering Cancer Center New York NY 10065 United States Brain Tumor Center Memorial Sloan-Kettering Cancer Center New York NY 10021 United States Department of Materials Science and Engineering Stanford University Stanford CA 94305 United States Department of Cancer Biology and Genetics Memorial Sloan-Kettering Cancer Center New York NY 10021 United States Department of Neurology Memorial Sloan-Kettering Cancer Center New York NY 10021 United States Human Oncology and Pathogenesis Program Memorial Sloan-Kettering Cancer Center New York NY 10021 United States Department of Pharmacology Weill-Cornell Medical College New York NY 10065 United States Department of Neurosurgery Memorial Sloan-Kettering Cancer Center New York NY 10021 United States Department of Surgery Memorial Sloan-Kettering Cancer Center New York NY 10021 United States Department of Bioengineering Bio-X Program Stanford University Stanford CA 94305 United States

ISBN: (纸本)9780819493507

The difficulty in delineating brain tumor margins is a major obstacle in the path toward better outcomes for patients with brain tumors. Current imaging methods are often limited by inadequate sensitivity, specificity and spatial resolution. Here we show that a unique triplemodality magnetic resonance imaging - photoacoustic imaging - Raman imaging nanoparticle (termed here MPR nanoparticles), can accurately help delineate the margins of brain tumors in living mice both preoperatively and intraoperatively. The MPRs were detected by all three modalities with at least a picomolar sensitivity both in vitro and in living mice. Intravenous injection of MPRs into glioblastoma-bearing mice led to MPR accumulation and retention by the tumors, with no MPR accumulation in the surrounding healthy tissue, allowing for a noninvasive tumor delineation using all three modalities through the intact skull. Raman imaging allowed for guidance of intraoperative tumor resection, and a histological correlation validated that Raman imaging was accurately delineating the brain tumor margins. This new triple-modality-nanoparticle approach has promise for enabling more accurate brain tumor imaging and resection. © 2013 Copyright SPIE.

关键词： Nanoparticles

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