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arXiv 2017年

作者： Putz, Ana-Maria Wang, Kunzhou Len, Adél Plocek, Jiri Bezdicka, Petr Kopitsa, Gennady P. Khamova, Tamara V. Ianăşi, Cătălin Săcărescu, Liviu Mitróová, Zuzana Savii, Cecilia Yan, Minhao Almásy, László Institute of Chemistry Timisoara of Romanian Academy Laboratory of Inorganic Chemistry Bv. Mihai Viteazul No.24 TimisoaraRO-300223 Romania State Key Laboratory Cultivation Base for Non-metal Composites and Functional Materials Southwest University of Science and Technology Mianyang621010 China Wigner Research Centre for Physics Institute for Solid State Physics and Optics Hungarian Academy of Sciences Budapest Hungary Institute of Inorganic Chemistry Academy of Sciences of the Czech Republic v.v.i Husinec-Řež 1001 25068 Řež Czech Republic Institute of Silicate Chemistry of RAS nab. Makarova 2 St. Petersburg199034 Russia Institute of Macromolecular Chemistry „Petru Poni" Iaşi Romania Institute of Experimental Physics SAS Watsonova 47 Kosice04001 Slovakia Petersburg Nuclear Physics Institute Gatchina Russia

Mesoporous silica particles have been synthesized by sol-gel method from tetraethoxysilane (tetraethylorthosilicate, TEOS) and methyltriethoxysilane (MTES), in ethanol and water mixture, at different ratios of the of the silica precursors. Ammonia was used as catalyst at room temperature and hexadecyltrimethylammonium bromide (cetyltrimethylammonium bromide, CTAB) as the structure directing agent. Nitrogen sorption, X-ray diffraction and small-angle neutron scattering gave information on the evolution of the gel structure and pore morphologies in the function of MTES/TEOS molar ratio. Thermogravimetric and differential thermal analysis showed that with addition of MTES the exothermic peak indicating the oxidation of the low molecular weight organic fragments shift to higher temperature. A room-temperature, one-pot synthesis of MCM-41 type materials is presented, in which the variation of the MTES concentration allows to change the hydrophobicity, preserving the specific properties materials, like the ordered pore structure, large specific surface area and high porosity, making them suitable for selective uptake of guest species in drug loading applications. Specifically, the obtained materials had cylindrical pores, specific surface areas up to 1101 m2/g and total pore volumes up to 0.473 cm3/g. The obtained mesoporous materials are susceptible for further functionalization to improve their selective uptake of guest species in drug delivery applications. Copyright © 2017, The Authors. All rights reserved.

关键词： Silica

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Competing magnetic orderings and tunable topological states in two-dimensional hexagonal organometallic lattices

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Physical Review B 2016年第4期93卷 041404(R)-041404(R)页

作者： Hyun-Jung Kim Chaokai Li Ji Feng Jun-Hyung Cho Zhenyu Zhang Department of Physics and Research Institute for Natural Sciences Hanyang University 17 Haengdang-Dong Seongdong-Ku Seoul 133-791 Korea International Center for Quantum Design of Functional Materials (ICQD) Hefei National Laboratory for Physical Sciences at the Microscale (HFNL) and Synergetic Innovation Center of Quantum Information and Quantum Physics University of Science and Technology of China Hefei Anhui 230026 China Korea Institute for Advanced Study 85 Hoegiro Dongdaemun-gu Seoul 130-722 Korea International Center for Quantum Materials Peking University Beijing 100871 China Collaborative Innovation Center of Quantum Matter Beijing 100871 China

The exploration of topological states is of significant fundamental and practical importance in contemporary condensed matter physics, for which the extension to two-dimensional (2D) organometallic systems is particularly attractive. Using first-principles calculations, we show that a 2D hexagonal triphenyl-lead lattice composed of only main group elements is susceptible to a magnetic instability, characterized by a considerably more stable antiferromagnetic (AFM) insulating state rather than the topologically nontrivial quantum spin Hall state proposed recently. Even though this AFM phase is topologically trivial, it possesses an intricate emergent degree of freedom, defined by the product of spin and valley indices, leading to Berry curvature-induced spin and valley currents under electron or hole doping. Furthermore, such a trivial band insulator can be tuned into a topologically nontrivial matter by the application of an out-of-plane electric field, which destroys the AFM order, favoring instead ferrimagnetic spin ordering and a quantum anomalous Hall state with a nonzero topological invariant. These findings further enrich our understanding of 2D hexagonal organometallic lattices for potential applications in spintronics and valleytronics.

关键词： Geometric & topological phases Topological materials Density functional approximations First-principles calculations

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Wang et al. Reply:

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Physical Review Letters 2016年第16期117卷 169702-169702页

作者： M. C. Wang S. Qiao Z. Jiang S. N. Luo J. Qi The Peac Institute of Multiscale Sciences Sichuan 610031 China Key Laboratory of Advanced Technologies of Materials Southwest Jiaotong University Sichuan 610031 China State Key Laboratory of Functional Materials for Informatics Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences Shanghai 200050 China School of Physical Science and Technology ShanghaiTech University Shanghai 200031 China School of Physics Georgia Institute of Technology Atlanta Georgia 30332 USA

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Liquid Tubule Formation and Stabilization Using Cellulose Nanocrystal Surfactants

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Angewandte Chemie 2017年第41期129卷

作者： Xubo Liu Shaowei Shi Yanan Li Joe Forth Dong Wang Thomas P. Russell Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology Beijing 100029 China Materials Sciences Division Lawrence Berkeley National Laboratory 1 Cyclotron Road Berkeley CA 94720 USA State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Department of Polymer Science and Engineering University of Massachusetts Amherst MA 01003 USA

Structured liquids, generated by the interfacial formation, assembly, and jamming of nanoparticle (NP)‐surfactants at liquid/liquid interfaces, maintain all the desirable characteristics of each liquid, while providing a spatially structured framework. Herein, we show that rod‐like cellulose nanocrystal (CNC)‐based NP‐surfactants, termed CNC‐surfactants, are formed rapidly at the liquid/liquid interface, assemble into a monolayer, and, when jammed, offer a robust assembly with exceptional mechanical properties. Plateau–Rayleigh (PR) instabilities of a free‐falling jet of an aqueous medium containing the CNCs into a toluene solution of amine end‐functionalized polystyrene are completely suppressed, allowing the jetting of aqueous tubules that are stabilized when the CNC‐surfactants are jammed at the interface. These results open a new platform for the additive manufacturing techniques, for example, three‐dimensional (3D) printing, of all‐liquid constructs.

关键词： 3D-Druck Cellulose-Nanokristalle Plateau-Rayleigh-Instabilität Strukturierte Flüssigkeiten

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High Resolution Transmission Electron Microscopy Study of Montmorillonite Subjected to Rapid Compression

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Microscopy and Microanalysis 2016年第S3期22卷 1860-1861页

作者： Yanyan Zhang Maobin Wei Yanzhang Ma Jharna Chaudhuri Center for High Pressure Science and Technology Advanced Research 2699 Qianjin Street Changchun China Institute of Condensed State Physics Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Siping China Department of Mechanical Engineering Texas Technology University 2703 7th Street Lubbock USA TX

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Influences of high temperature treatment of C/C on the mechanical properties of C/C-SiC composites

Influences of high temperature treatment of C/C on the mecha...

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Chinese Materials Congress, CMC 2014

作者： Lin, Dong Wang, Jin Zhang, Chang Rui Cao, Ying Bin Liu, Rong Jun Science and Technology on Advanced Ceramic Fibers and Composites Laboratory National University of Defense Technology Changsha410073 China Luoyang Hydraulic Engineering Technique Institute Luoyang471023 China

ISBN: (纸本)9783038353959

C/C-SiC composite as low expansion material for space opto-mechanical structures was prepared by gaseous silicon infiltration after high temperature treatment (HTT) on C/C. 2000°C and 2400°C were selected as the treatment temperatures for C/C to study the influences on the properties of C/C-SiC composite. The graphitization level of amorphous C in C/C was improved by HTT. The porosity of C/C increased from 32.88% to 34.25% (2000°C) and 41.06% (2400°C) respectively. In addition, a higher HTT temperature led to a higher density of C/C-SiC composite and a lower SiC content. Furthermore, the mechanical properties and coefficient of thermal expansion (CTE) of the composite decreased as the temperature increased. After 2000°C HTT, the CTE of C/C-SiC composite decreased to -0.055×10-6·K-1 and the mechanical properties (218. MPa) could meet the application demand at the same time. © (2015) Trans Tech Publications, Switzerland.

关键词： Silicon carbide

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Global, regional, and national incidence of six major immune-mediated inflammatory diseases: findings from the global burden of disease study 2019

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eClinicalMedicine 2023年 64卷 102193-102193页

作者： Wu, Dongze Jin, Yingzhao Xing, Yuhan Abate, Melsew Dagne Abbasian, Mohammadreza Abbasi-Kangevari, Mohsen Abbasi-Kangevari, Zeinab Abd-Allah, Foad Abdelmasseh, Michael Abdollahifar, Mohammad-Amin Abdulah, Deldar Morad Abedi, Aidin Abedi, Vida Abidi, Hassan Aboagye, Richard Gyan Abolhassani, Hassan Abuabara, Katrina Abyadeh, Morteza Addo, Isaac Yeboah Adeniji, Kayode Nelson Adepoju, Abiola Victor Adesina, Miracle Ayomikun Adnani, Qorinah Estiningtyas Sakilah Afarideh, Mohsen Aghamiri, Shahin Agodi, Antonella Agrawal, Anurag Arriagada, Constanza Elizabeth Aguilera Ahmad, Aqeel Ahmad, Danish Ahmad, Sohail Ahmadi, Ali Ahmed, Ayman Aithala, Janardhana P. Ajadi, Abdullateef Abiodun Ajami, Marjan Akbarzadeh-Khiavi, Mostafa Alahdab, Fares AlBataineh, Mohammad T. Alemi, Sharifullah Al-Gheethi, Adel Ali Saeed Ali, Liaqat Alif, Sheikh Mohammad Almazan, Joseph Uy Almustanyir, Sami Alqahtani, Jaber S. Alqasmi, Ibrahim Altaf, Ihsan Ullah Khan Alvis-Guzman, Nelson Alvis-Zakzuk, Nelson J. Al-Worafi, Yaser Mohammed Aly, Hany Amani, Reza Amu, Hubert Amusa, Ganiyu Adeniyi Andrei, Catalina Liliana Ansar, Adnan Ansariniya, Hossein Anyasodor, Anayochukwu Edward Arabloo, Jalal Arefnezhad, Reza Arulappan, Judie Asghari-Jafarabadi, Mohammad Ashraf, Tahira Atata, Jamila Abdulhamid Athari, Seyyed Shamsadin Atlaw, Daniel Atout, Maha Moh'd Wahbi Aujayeb, Avinash Awan, Asma Tahir Ayatollahi, Haleh Azadnajafabad, Sina Azzam, Ahmed Y. Badawi, Alaa Badiye, Ashish D. Bagherieh, Sara Baig, Atif Amin Bantie, Berihun Bantie Barchitta, Martina Bardhan, Mainak Barker-Collo, Suzanne Lyn Barone-Adesi, Francesco Batra, Kavita Bayileyegn, Nebiyou Simegnew Behnoush, Amir Hossein Belgaumi, Uzma Iqbal Bemanalizadeh, Maryam Bensenor, Isabela M. Beyene, Kebede A. Bhagavathula, Akshaya Srikanth Bhardwaj, Pankaj Bhaskar, Sonu Bhat, Ajay Nagesh Bitaraf, Saeid Bitra, Veera R. Boloor, Archith Bora, Kaustubh Botelho, João Silva Buchbinder, Rachelle Calina, Daniela Cámera, Luis Alberto Carvalho, Andre F. Chan, Jeffrey Shi Kai Chattu, Vijay Kumar Abebe, Endeshaw Chekol Department of Rheumatology and Immunology Sichuan Provincial People's Hospital School of Medicine University of Electronic Science and Technology of China China Department of Medicine & Therapeutics The Chinese University of Hong Kong Hong Kong Department of Paediatrics The Chinese University of Hong Kong Hong Kong School of Pharmacy The Chinese University of Hong Kong Hong Kong Jockey Club School of Public Health and Primary Care The Chinese University of Hong Kong Hong Kong Department of Nursing Woldia University Woldia Ethiopia Department of Orthopedic Surgery Harvard University Boston MA United States Postgraduate Medical Education Harvard University Boston MA United States Maternal Fetal Care Center Harvard University Boston MA United States Department of Health Policy and Oral Epidemiology Harvard University Boston MA United States Division of General Internal Medicine Harvard University Boston MA United States Department of Orthopaedic Surgery Shahid Beheshti University of Medical Sciences Tehran Iran Social Determinants of Health Research Center Shahid Beheshti University of Medical Sciences Tehran Iran Department of Biotechnology Shahid Beheshti University of Medical Sciences Tehran Iran Department of Epidemiology Shahid Beheshti University of Medical Sciences Tehran Iran National Nutrition and Food Technology Research Institute Shahid Beheshti University of Medical Sciences Tehran Iran Department of Immunology Shahid Beheshti University of Medical Sciences Tehran Iran Department of Neurology Shahid Beheshti University of Medical Sciences Tehran Iran Department of Medical Genetics Shahid Beheshti University of Medical Sciences Tehran Iran Center for Comprehensive Genetic Services Shahid Beheshti University of Medical Sciences Tehran Iran Cancer Research Center Shahid Beheshti University of Medical Sciences Tehran Iran Department of Health Economics and Statistics Shahid Beheshti University of Medical Sciences Tehran Iran Functional Neuro

Background: The causes for immune-mediated inflammatory diseases (IMIDs) are diverse and the incidence trends of IMIDs from specific causes are rarely studied. The study aims to investigate the pattern and trend of IMIDs from 1990 to 2019. Methods: We collected detailed information on six major causes of IMIDs, including asthma, inflammatory bowel disease, multiple sclerosis, rheumatoid arthritis, psoriasis, and atopic dermatitis, between 1990 and 2019, derived from the Global Burden of Disease study in 2019. The average annual percent change (AAPC) in number of incidents and age standardized incidence rate (ASR) on IMIDs, by sex, age, region, and causes, were calculated to quantify the temporal trends. Findings: In 2019, rheumatoid arthritis, atopic dermatitis, asthma, multiple sclerosis, psoriasis, inflammatory bowel disease accounted 1.59%, 36.17%, 54.71%, 0.09%, 6.84%, 0.60% of overall new IMIDs cases, respectively. The ASR of IMIDs showed substantial regional and global variation with the highest in High SDI region, High-income North America, and United States of America. Throughout human lifespan, the age distribution of incident cases from six IMIDs was quite different. Globally, incident cases of IMIDs increased with an AAPC of 0.68 and the ASR decreased with an AAPC of −0.34 from 1990 to 2019. The incident cases increased across six IMIDs, the ASR of rheumatoid arthritis increased (0.21, 95% CI 0.18, 0.25), while the ASR of asthma (AAPC = −0.41), inflammatory bowel disease (AAPC = −0.72), multiple sclerosis (AAPC = −0.26), psoriasis (AAPC = −0.77), and atopic dermatitis (AAPC = −0.15) decreased. The ASR of overall and six individual IMID increased with SDI at regional and global level. Countries with higher ASR in 1990 experienced a more rapid decrease in ASR. Interpretation: The incidence patterns of IMIDs varied considerably across the world. Innovative prevention and integrative management strategy are urgently needed to mitigate the increasing ASR of rh

关键词： Global burden of disease study Immune-mediated inflammatory disease Incidence Trend

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Ultrafast Charge Transfer Processes Accompanying KLL Auger Decay in Aqueous KCl Solution

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Physical Review Letters 2017年第26期119卷 263003-263003页

作者： D. Céolin N. V. Kryzhevoi Ch. Nicolas W. Pokapanich S. Choksakulporn P. Songsiriritthigul T. Saisopa Y. Rattanachai Y. Utsumi J. Palaudoux G. Öhrwall J.-P. Rueff Synchrotron SOLEIL l’Orme des Merisiers Saint-Aubin F-91192 Gif-sur-Yvette Cedex France Theoretical Chemistry Institute of Physical Chemistry Heidelberg University Im Neuenheimer Feld 229 69120 Heidelberg Germany Faculty of Science Nakhon Phanom University Nakhon Phanom 48000 Thailand NANOTEC-SUT Center of Excellence on Advanced Functional Nanomaterials and School of Physics Suranaree University of Technology Nakhon Ratchasima 30000 Thailand Department of Applied Physics Faculty of Sciences and Liberal Arts Rajamangala University of Technology Isan Nakhon Ratchasima 30000 Thailand CNRS UMR 7614 Laboratoire de Chimie Physique-Matière et Rayonnement F-75005 Paris France Sorbonne Universités UPMC Université Paris 06 UMR 7614 Laboratoire de Chimie Physique-Matière et Rayonnement F-75005 Paris France MAX IV Laboratory Lund University P.O. Box 118 SE-22100 Lund Sweden

X-ray photoelectron and KLL Auger spectra were measured for the K+ and Cl− ions in aqueous KCl solution. While the XPS spectra of these ions have similar structures, both exhibiting only weak satellites near the main line, the Auger spectra differ dramatically. Contrary to the chloride case, a very strong extra peak was found in the Auger spectrum of K+ at the low kinetic energy side of the D1 state. Using the equivalent core model and ab initio calculations this spectral feature was assigned to electron transfer processes from solvent water molecules to the solvated cation. The observed charge transfer processes are suggested to play an important role in charge redistribution following single and multiple core-hole creation in atoms and molecules placed into environment.

关键词： Autoionization & Auger processes Electronic excitation & ionization

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Cover Image, Volume 20, Issue 7

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Diabetes, Obesity and Metabolism 2018年第7期20卷 i-i页

作者： Hoe-Yune Jung PhD Bobae Kim MS Hye Guk Ryu MS Yosep Ji PhD Soyoung Park PhD Seung Hee Choi PhD Dohyun Lee PhD In-Kyu Lee MD Munki Kim PhD You Jeong Lee MD Woojin Song PhD Young Hee Lee BS Hyung Jin Choi MD Chang-Kee Hyun PhD Wilhelm H Holzapfel PhD Kyong-Tai Kim PhD Department of Integrative Biosciences and Biotechnology Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea R&D Center NovMetaPharma Co. Ltd. Pohang Republic of Korea Department of Advanced Green Energy and Environment Handong Global University Pohang Republic of Korea School of Life Science Handong Global University Pohang Republic of Korea Department of Life Sciences Pohang University of Science and Technology (POSTECH) Pohang Republic of Korea Department of Internal Medicine School of Medicine Kyungpook National University Kyungpook National University Hospital Daegu Republic of Korea Department of Internal Medicine Kyungpook National University School of Medicine Daegu Republic of Korea Leading-Edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease Kyungpook National University Hospital Daegu Republic of Korea Bio Convergence Team Advanced Bio Convergence Center Pohang Republic of Korea Academy of Immunology and Microbiology Institute for Basic Science (IBS) Pohang Republic of Korea Functional Neuroanatomy of Metabolism Regulation Laboratory Department of Anatomy Division of Internal Medicine Seoul National University College of Medicine Seoul Republic of Korea

The cover image, by Hoe-Yune Jung, et al., is based on the Original Article Amodiaquine improves insulin resistance and lipid metabolism in diabetic model mice , DOI: 10.1111/dom.13284 .

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Hybrid Materials: Optochemically Responsive 2D Nanosheets of a 3D Metal–Organic Framework Material (Adv. Mater. 27/2017)

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advanced Materials 2017年第27期29卷

作者： Abhijeet K. Chaudhari Ha Jin Kim Intaek Han Jin‐Chong Tan Multifunctional Materials & Composites (MMC) Laboratory Department of Engineering Science University of Oxford OX1 3PJ Oxford UK Materials Research Center Samsung Advanced Institute of Technology (SAIT) Samsung Electronics Co. Ltd. 443‐803 Suwon Republic of Korea

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