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| 1 | Performance of integrated optical switches based on 2D materials and beyond显示文摘Applications of optical switches,such as signal routing and data-intensive computing,are critical in optical interconnects and optical computing.Integrated optical switches enabled by two-dimensional(2D)materials and beyond,such as graphene and black phosphorus,have demonstrated many advantages in terms of speed and energy consumption compared to their conventional silicon-based counterparts.Here we review the state-of-the-art of optical switches enabled by 2D materials and beyond and organize them into several tables.The performance tables and future projections show the frontiers of optical switches fabricated from 2D materials and beyond,providing researchers with an overview of this field and enabling them to identify existing challenges and predict promising research directions. | Yuhan YAO Zhao CHENG Jianji DONG Xinliang ZHANG | 2020 | Frontiers of Optoelectronics2020，13，2： | 8 |
| 2 | Controlled growth of silver nanoparticles in a hydrothermal process显示文摘A two-step synthesis was used to control the shape of silver nanoparticles. First, a few spherical silver nanoparticles, ~10nm in size, were prepared via reduction of Ag+ ions in aqueous Ag(NH3)2NO3 by poly(N-vinyl-2-pyrrolidone) (PVP). Then, in a subsequent hydrothermal treatment, the remaining Ag+ ions were reduced by PVP into polyhedral nanoparticles, or larger spherical nanoparticles formed from the small spherical seed silver nanoparticles in the first step. The morphology and size of the resultant particles depend on the hydrothermal temperature, PVP/Ag molar ratio and concentration of Ag+ ions. By using UV-visible spectroscopy (UV-vis), transmission electron microscopy (TEM) and powder X-ray diffraction (XRD), the possible growth mechanism of the silver nanoparticles was discussed. | Juan Zou Yao Xu Bo Hou Dong Wu Yuhan Sun | 2007 | China Particuology2007，5，3： | 6 |
| 3 | Preparation and properties of magnetic iron oxide nanotubes显示文摘Magnetite(Fe3O4)nanotubes were prepared by reducing synthesized hematite(-Fe2O3)nanotubes in 5%H2+95%Ar atmosphere,and then maghemite(-Fe2O3)nanotubes were obtained by re-oxidizing the Fe3O4 nanotubes.The nanotube structure was kept from collapsing or sintering throughout the high temperature reducing and re-oxidizing processes.The coercivities of the Fe3O4 and-Fe2O3 nanotubes synthesized were found to be 340.22 Oe and 342.23 Oe,respectively,both higher than other nanostructures with the same phase and of similar size.Both adsorbed phosphate and the nanotube structure are considered responsible for this high coercivity. | Baoliang Lv Yao Xu Dong Wu Yuhan Sun | 2008 | Particuology2008，6，5： | 5 |
| 4 | Magnetic and electrochemical behavior of rhombohedral α-Fe_2O_3 nanoparticles with (104) dominant facets显示文摘Uniform rhombohedral α-Fe_2O_3 nanoparticles,~60nm in size,were synthesized via a triphenylphosphine-assisted hydrothermal method.Scanning electron micrograph(SEM) and transmission electron micrograph(TEM) analyses showed that the as-synthesized rhombohedral nanoparticles were enclosed by six(104) planes.The concentration of triphenylphosphine played an important role in morphological evolution of the α-Fe_2O_3 nanoparticles.The as-prepared rhombohedral nanoparticles possessed remanent magnetization M_r of 2.6×10^(-3) emu/g and coercivity H_C of 2.05 Oe,both lower than those of other α-Fe_2O_3 particles with similar size,indicating their potential applications as superparamagnetic precursor materials.Furthermore,these rhombohedral α-Fe_2O_3 nanoparticles exhibited good sensor capability toward H_2O_2 with a linear response in the concentration range of 2-20 mM. | Zhong Liu Baoliang Lv Dong Wu Yuhan Sun Yao Xu | 2013 | Particuology2013，11，3： | 2 |
| 5 | Preparation of α-Fe_2O_3 Nanodisks by Blocking the Growth of (001) Plane显示文摘Based on the difference of hydroxy group configuration on different planes of α-Fe2O3 nanoparticles, using the special adsorption and coordination of phosphate on the (001) plane of α-Fe2O3, well-crystallized and well dispersed α-Fe2O3 nanodisks with diameter of 150–200 nm and thickness of 40–80 nm were synthesized via a hydrothermal method. The magnetic properties of synthesized nanodisks were investigated. It was found that the nanodisks possessed a saturation magnetization (Ms) of 0.38 emu/g, a remanent magnetization (Mr) of 0.031 emu/g and a coercivity of 452.91 Oe at room temperature. The Mr and coercivity of synthesized α-Fe2O3 nanodisks are higher and the Ms is lower than those of other previously reported α- Fe2O3 nanostructures. | Baoliang Lv Yao Xu Dong Wu Yuhan Sun | 2009 | Journal of Materials Science & Technology2009，25，2： | 1 |
| 6 | Controllable release of ibuprofen from size-adjustable and surface hydrophobic mesoporous silica spheres显示文摘 | Wujun Xu Qiang Gao Yao Xu Dong Wu Yuhan Sun Wanling Shen Feng Deng | 2008 | Powder Technology2008，，1： | 1 |
| 7 | Quercetin suppressed CYP2E1-dependent ethanol hepatotoxicity via depleting heme pool and releasing CO显示文摘 | Yuhan Tang Hongtao Tian Yanru Shi Chao Gao Mingyou Xing Wei Yang Wei Bao Di Wang Liegang Liu Ping Yao | 2013 | Phytomedicine (-)2013，，8： | 1 |
| 8 | Fabrication and photocatalysis of TiO2-graphene sandwich nanosheets with smooth surface and controlled thickness显示文摘 | Yao Weiwei Li Yuhan Yan Dongxue | 2013 | Chem Eng J2013，229，： | 1 |
| 9 | Preparation,characterization and combustion properties of Zr/ZrH_2 particles coated with α-FeOOH crystal grains显示文摘Zr/ZrH2 particles with irregular morphologies and broad size distribution were uniformly coated with acicular-FeOOH crystal grains via a facile route without using polymers or surfactants. The as-synthesized material was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), UV-vis diffusion reflection (UV-vis) and Raman spectrometry. Based on these characterizations, the synthesis mechanism was explained in terms of combined heterogeneous nucleation and solid state transformation reaction. The presence of-FeOOH coating greatly changed the combustion behavior of Zr/ZrH2 particles: the combustion lasting time decreased from 32 s for un-coated Zr/ZrH2 particles to 0.2 s for coated particles while the maximum temperature in the combustion process increased from 1510 °C to 2036 °C. | Baoliang Lv Yao Xu Bo HOU Dong Wu Yuhan Sun | 2009 | Particuology2009，7，3： | 1 |
| 10 | Synthesis and characterization of ultralong lanthanum hydroxide nanorods via solvothermal method显示文摘 | Bo Hou Yao Xu Dong Wu Yuhan Sun | 2007 | Journal of Materials Science2007，，4： | 1 |
| 11 | Direct formation of hydrophobic silica-based micro/mesoporous hybrids from polymethylhdrosi- loxane and tetraethoxysilane显示文摘 | Dongjiang Yang junpingLi Yao Xu Dong Wu Yuhan Sun Huaiyong Zhu and FengDeng | 2006 | Microporous and Mesoporous Materials2006，95，13： | 1 |
| 12 | Visible-light-responsive Ag–Si codoped anatase TiO 2 photocatalyst with enhanced thermal stability显示文摘 | Qifeng Chen Weimei Shi Yao Xu Dong Wu Yuhan Sun | 2010 | Materials Chemistry and Physics2010，，3： | 1 |
| 13 | USP21 deubiquitylates Nanog to regulate protein stability and stem cell pluripotency显示文摘The homeobox transcription factor Nanog has a vital role in maintaining pluripotency and self-renewal of embryonic stem cells(ESCs).Stabilization of Nanog proteins is essential for ESCs.The ubiquitin–proteasome pathway mediated by E3 ubiquitin ligases and deubiquitylases is one of the key ways to regulate protein levels and functions.Although ubiquitylation of Nanog catalyzed by the ligase FBXW8 has been demonstrated,the deubiquitylase that maintains the protein levels of Nanog in ESCs yet to be defined.In this study,we identify the ubiquitin-specific peptidase 21(USP21)as a deubiquitylase for Nanog,but not for Oct4 or Sox2.USP21 interacts with Nanog protein in ESCs in vivo and in vitro.The C-terminal USP domain of USP21 and the C-domain of Nanog are responsible for this interaction.USP21 deubiquitylates the K48-type linkage of the ubiquitin chain of Nanog,stabilizing Nanog.USP21-mediated Nanog stabilization is enhanced in mouse ESCs and this stabilization is required to maintain the pluripotential state of the ESCs.Depletion of USP21 in mouse ESCs leads to Nanog degradation and ESC differentiation.Overall,our results demonstrate that USP21 maintains the stemness of mouse ESCs through deubiquitylating and stabilizing Nanog. | Xingyu Liu Yuying Yao Huiguo Ding Chuanchun Han Yuhan Chen Yuan Zhang Chanjuan Wang Xin Zhang Yiling Zhang Yun Zhai Ping Wang Wenyi Wei Jing Zhang Lingqiang Zhang | 2016 | Signal Transduction and Targeted Therapy2016，1，1： | 1 |
| 14 | Sustained growth of the largest uninhabited alluvial island in the Changjiang Estuary under the drastic reduction of river discharged sediment显示文摘The evolution of the Changjiang Delta is obviously affected by current rapidly rising sea level and drastically declining river discharge,and it is also vital for the sustainable development of Shanghai and the Changjiang River Economic Belt,which represent China’s economic development leader and major national strategic area,respectively.In this paper,the growth pattern of Jiuduansha Island,the largest uninhabited alluvial island in the Changjiang Estuary,is studied in terms of the change in elevation,position and area over the past 50 years through using satellite-derived instantaneous shoreline positions and high/low tide exposure areas based on 497 satellite images from 1974 to 2020;and the influencing factors and future development patterns are further discussed by comparison with other alluvial islands or sandbars in the estuary.The results show that Jiuduansha Island has maintained a rapid or even accelerated area growth rate,although the sediment discharge of the Changjiang River has sharply decreased in recent decades.This sustained growth is mainly attributed to the existence of the estuarine turbidity maximum zone,coarsening fluvial sediment,onshore sediment replenishment by tide,cone-like geomorphology of Jiuduansha Island,and siltation promotion effect of vegetation.The growth rate of the low tide exposure area of Jiuduansha Island increased from 1.9 km^(2)a^(−1) in 1974–1990 to 3.0 km^(2)a^(−1) in 1990–2020,and the growth rate of the high tide exposure area reached as high as 3.7 km^(2)a^(−1) in 1994–2020.The implementation of the Deep-Water Channel Project has significantly affected the evolution of Jiuduansha Island,including shifting the heads of Shangsha and Zhongxiasha from severe retreat to rapid accretion,and promoting tidal flat progradation seaward of the Jiangyanansha and Zhongxiasha,but restricting the growth of the low tide exposure area of Jiuduansha Island. | Xiaodong ZHANG Rui XIE Daidu FAN Zuosheng YANG Hongmin WANG Chuang WU Yuhan YAO | 2021 | Science China Earth Sciences2021，64，10： | 0 |
| 15 | The effect of iron on the preservation of organic carbon in marine sediments and its implications for carbon sequestration显示文摘Marine sediments are the most significant reservoir of organic carbon(OC)in Earth′s surface system.Iron,a crucial component of the marine biogeochemical cycle,has a considerable impact on marine ecology and carbon cycling.Understanding the effect of iron on the preservation of OC in marine sediments is essential for comprehending biogeochemical processes of carbon and climate change.This review summarizes the methods for characterizing the content and structure of iron-bound OC and explores the influencing mechanism of iron on OC preservation in marine sediments from two aspects:the selective preservation of OC by reactive iron minerals(iron oxides and iron sulfides)and iron redox processes.The selective preservation of sedimentary OC is influenced by different types of reactive iron minerals,OC reactivity,and functional groups.The iron redox process has dual effects on the preservation and degradation of OC.By considering sedimentary records of iron-bound OC across diverse marine environments,the role of iron in long-term preservation of OC and its significance for carbon sequestration are illustrated.Future research should focus on identifying effective methods for extracting reactive iron,the effect of diverse functional groups and marine sedimentary environments on the selective preservation of OC,and the mediation of microorganisms.Such work will help elucidate the influencing mechanisms of iron on the long-term burial and preservation of OC and explore its potential application in marine carbon sequestration to maximize its role in achieving carbon neutrality. | Limin HU Yuhan JI Bin ZHAO Xiting LIU Jiazong DU Yantao LIANG Peng YAO | 2023 | Science China Earth Sciences2023，66，9： | 0 |
| 16 | Late Neoarchean crustal growth under paired continental arc-back arc system in the North China Craton显示文摘The late Archean(~3.0-2.5 Ga)was a key period of continental growth globally,which is widely considered to reflect the onset of vigorous plate tectonic activity,although related continental growth modes remain contentious.Here we investigate a suite of late Neoarchean metavolcanic rocks from the southwest Qixia area of the Jiaobei terrane in the North China Craton.The rocks in this suite include amphibolites,clinopyroxene amphibolites,and hornblende plagioclase gneisses.We present zircon U-Pb isotopic data which indicate that the protoliths of these rocks formed during~2549-2511 Ma.The(clinopyroxene)amphibolites correspond to meta-basaltic rocks,with some containing high modal content of titanite.These rocks show moderate to high FeO_(T)(8.96-13.62 wt.%)and TiO_(2)(0.59-1.59 wt.%),flat to less fractionated REE patterns,and mildly negative Th,Nb,and Ta anomalies,resembling those of Fe-tholeiites.In addition,they display positive zirconε_(Hf)(t)values(+2.6 to+8.7),and are devoid of crustal contamination or fractional crystallization.Combined with the low Nb/Yb(mostly<1.60)and(Hf/Sm)_N(mostly<0.95),low to moderate Th/Yb(0.08-0.54),and low V/Sc(5.53-9.19)ratios,these basaltic rocks are interpreted to have been derived from a relatively reduced and depleted mantle source that was mildly metasomatized by hydrous fluids.The hornblende plagioclase gneisses are meta-andesitic rocks,and occur interlayered with the basaltic rocks.They are transitional between tholeiitic and calc-alkaline rock series,and show fractionated REE patterns with evidently negative Th,Nb,and Ta anomalies.The depleted zirconε_(Hf)(t)values(+2.4 to+8.4)and quantitative chemical modeling suggest that the andesitic rocks were most likely generated by injection and mixing of juvenile felsic magmas with the tholeiitic basaltic magmas.In general,the chemical features and genesis of late Neoarchean meta-basaltic rocks in our study area resemble those of Mariana back-arc basin basalts.Combined with regional geological data,it is proposed that the Jiaobei terrane witnessed late Neoarchean crustal growth under a paired continental arc-back arc setting.On a regional context,we propose two distinct geodynamic mode of late Neoarchean continental growth across North China Craton(particularly the Eastern Block),i.e.,(1)arc-continent accretion along northwestern part of the Eastern Block;and(2)paired continental arc-back arc system surrounding the~3.8-2.7 Ga continental nuclei to the southeast. | Xin He Wei Wang M.Santosh Jiachen Yao Kangting Gao Yuhan Zhang Denggang Lu Lishuang Guo | 2021 | Geoscience Frontiers2021，12，3： | 0 |
| 17 | LEAF项目建设状态报告显示文摘LEAF or the Low Energy heavy ion Accelerator Facility is a multidiscipline heavy ion research platform under construction at IMP.It is a 5 year National Major Instruments Research Program supported by National Science Foundation of China(NSFC)started in 2015.Oriented to the frontier research in Material Sciences,Astrophysics,Atomic Physics and Highly Charged Ion Physics,LEAF has been designed and constructed with the state of the art technologies for low energy heavy ion acceleration.This facility features a 45 GHz ECR ion source FECR,a heavy ion CW 4-vane radio frequency quadruple accelerator LRFQ,300 kV HV platform,LEBT,MEBT and several dedicated experimental terminals. | Sun Liangting Yang Yao Lu Liang Guo Yuhui Liu Xiaojun Jing Long Li Libin Sun Liepeng Gao Zheng Ma Hongyi Jin Xiaofeng Zhai Yuhan Xu Xianbo Shi Longbo Xing Chaochao Liu Yuting Zhu Tieming Hu Qiang Zhang Peng Zhang Xuezhen Fang Xing Jia Huan Zhang Bin Liu Chaodong Ma Yingming Zhao Bo Wu Beimin Zhu Li Li Jiaqing Lu Wang Guo Junwei Li Chenxing Wang Zhijun Dou Weiping Wu Junxia Zhang Zimin Yao Qinggao Wu Wei Zhou Zhongzu Zhang Junhui Ma Lizhen He Yuan Zhao Hongwei | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 18 | 2018年在线离子源运行报告显示文摘HIRFL accelerator facility has been operated with two ion sources as its pre-injectors,which are LECR3 and SECRAL-II.In 2018,there were 19 kinds of ion beams delivered successfully,and the service time of the two sources are 4594.5 and 2231 h respectively,amounting to 6825.5 h in total,in which SECRAL and LECR3 provided 4 and 1 kinds of metallic ion beams respectively,and the total service time for the metallic ones is 2322 h,accounting for 34%of the total service time.Table 1 summarizes the main information about the ion beams delivered by the two ion sources. | Feng Yucheng Zhang Wenhui Ma Hongyi Fang Xing Guo Junwei Huang Wei Jia Zehua Jin Qianyu Li Jiaqing Li Jibo Li Libin Li Lixuan Lu Yuting Qian Cheng Shen Zhen Wang Guicai Wang Hui Yang Yao Zhai Yuhan Zhang Junjie Zhang Sheng Zhang Xuezhen Sun Liangting | 2018 | IMP & HIRFL Annual Report2018，，1： | 0 |
| 19 | 神经胶质细胞与神经突触的相互作用——从星形胶质细胞到小胶质细胞和少突胶质细胞谱系细胞显示文摘哺乳动物的大脑是一个由神经元、神经胶质细胞和超过1×1014个突触组成的复杂的器官。神经元是一组异质的电活性细胞,形成大脑复杂电回路的框架。然而,神经胶质细胞约占哺乳动物中枢神经系统(CNS)所有神经细胞的一半,主要分为星形胶质细胞、小胶质细胞、少突胶质细胞(OL)和少突胶质细胞前体细胞(OPC);神经胶质细胞主要为大脑中的神经元提供营养支持。近二十年来,“三联突触”的概念引起了广泛关注,该概念强调星形胶质细胞是突触的组成部分,并在接受神经元信号后以反馈方式调节神经元活动。自此,神经胶质细胞的突触调节得到了广泛的研究和实质性的修改。本综述总结了关于神经胶质细胞(特别是小胶质细胞和OL谱系细胞)如何影响和重塑大脑突触结构和功能的最新重要发现。我们的综述强调了神经元-神经胶质细胞串扰的细胞和分子方面,并提供了有关神经元和神经胶质细胞之间的异常突触通讯如何导致神经病理学的额外信息。 | Yao Liu Xi Shen Yuhan Zhang Xiaoli Zheng Carlos Cepeda YaoWang Shumin Duan Xiaoping Tong 杜一星(编译) | 2023 | 神经损伤与功能重建2023，18，9： | 0 |
| 20 | All-optical PtSe2 silicon photonic modulator with ultra-high stability显示文摘All-optical modulation based on the photothermal effect of two-dimensional(2 D)materials shows great promise for all-optical signal processing and communication.In this work,an all-optical modulator with a 2 D Pt Se2-onsilicon structure based on a microring resonator is proposed and demonstrated utilizing the photothermal effect of Pt Se2.A tuning efficiency of 0.0040 nm·m W-1 is achieved,and the 10%–90%rise and decay times are 304μs and 284μs,respectively.The fabricated device exhibits a long-term air stability of more than 3 months.The experimental results prove that 2 D Pt Se2 has great potential for optical modulation on a silicon photonic platform. | Kangkang Wei Delong Li Zhitao Lin Zhao Cheng Yuhan Yao Jia Guo Yunzheng Wang Yupeng Zhang Jianji Dong Han Zhang Xinliang Zhang | 2020 | Photonics Research2020，8，7： | 0 |
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