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Orbital angular momentum photonic quantum interface

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Light(Science & Applications) 2016年第1期5卷 723-729页

作者： Zhi-Yuan Zhou yan Li Dong-Sheng Ding Wei Zhang Shuai Shi Bao-Sen Shi guang-Can Guo Key Laboratory of Quantum Information University of Science and Technology of ChinaHefeiAnhui 230026China Synergetic Innovation Center of Quantum Information&Quantum Physics University of Science and Technology of ChinaHefeiAnhui 230026China

Light-carrying orbital angular momentum(OAM)has great potential in enhancing the information channel capacity in both classical and quantum optical *** distance optical communication requires the wavelengths of light are situated in the low-loss communication windows,but most quantum memories currently being developed for use in a quantum repeater work at different wavelengths,so a quantum interface to bridge the wavelength gap is *** far,such an interface for OAM-carried light has not been realized ***,we report the first experimental realization of a quantum interface for a heralded single photon carrying OAM using a nonlinear crystal in an optical *** spatial structures of input and output photons exhibit strong *** importantly,single-photon coherence is preserved during up-conversion as demonstrated.

关键词： frequency conversion spontaneous parametric down conversion sum frequency generation orbital angular momentum

Low-molecular-weight photoresponsive supramulecular hydrogel based on a dicationic azobenzene-bridged pyridinium hydrogelator

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Chinese Chemical Letters 2019年第3期30卷 707-709页

作者： Si-Tai Zheng Huan-Huan Yin Zhao-guang Ma Nan-Li Sheng Tian-guang Zhan Xiao-yang yan Jiecheng Cui Li-Juan Liu Kang-Da Zhang Key Laboratory of the Ministry of Education for Advanced Catalysis Materials College of Chemistry and Life Science Zhejiang Normal University Xingzhi College of Zhejiang Normal University

Low-molecular-weight supramolecular hydrogels are of significant attractive soft materials as particular functions can be facilely introduced by the straightforward fabrication of such self-assembled systems. In this study, an azobenzene-bridged dicationic pyridinium salt was synthesized, from which photoresponsive supramolecular hydrogel could be fabricated through the π-π stacking and hydrophobic interactions in the aqueous solution. By taking advantages of the UV-vis light induced E/Z photoisomerization behaviors of the incorporated azobenzene photochromophore, reversible gel-sol transformation of such supramolecular hydrogel could be achieved under the alternating UV-vis irradiation conditions. We believed that this photoresponsive supramolecular hydrogel will be a good supplementary in the creation of intelligent soft material.

关键词： Supramolecular self-assembly Hydrogels Photo-responsiveness Azobenzenes Smart soft materials

Single Zn atoms anchored on hollow carbon nanofiber network for dendrite-free lithium metal anode of flexible Li–S full cell

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Rare Metals 2023年第11期42卷 3705-3717页

作者： Zhi-Feng Wang Hong-Ying Wang Xiao-Li Liu yan-Xu Chen yan Zhao Yong-guang Zhang Qi-Qi Han Chun-Ling Qin Zhumabay Bakenov Yi-Chao Wang Xin Wang School of Materials Science and Engineering Hebei University of TechnologyTianjin300401China School of Materials Science and Engineering Hebei University of Science and TechnologyShijiazhuang050018China South China Academy of Advanced Optoelectronics and International Academy of Optoelectronics at Zhaoqing South China Normal UniversityGuangzhou510006China Shanxi Supercomputing Center Lvliang033000China Department of Chemical and Materials Engineering National Laboratory AstanaNazarbayev University010000Nur-SultanKazakhstan School of Life and Environmental Sciences Deakin UniversityWaurn PondsGeelongVIC3216Australia

The attractive energy density of lithium-sulfur(Li-S)batteries makes them desirable energy storage systems;however,the slow reaction kinetics and formation of lithium dendrites prevent them from reaching full *** address this issue,hierarchical porous carbon nanofibers network containing Zn single atoms(ZnSA@HPCNF)is synthesized by electrospinning and *** structure serves as the main anode body,providing excellent chemical anchoring and *** uniform distribution of Zn single atoms and N4coordination supports uniform deposition and continuous plating/stripping of *** results show that the Li|Li/ZnSA@HPCNF symmetrical battery presents stable and low overpotential during 700-and 900-h iterative plating/stripping process at1 and 5 mA·cm^(-2),***,the S/CNT||Li/ZnSA@HPCNF full cell shows good flexibility,reversible capacity and cycling *** work provides a lithium host strategy based on single-atom dispersed hierarchical porous carbon network,enabling the design of rational lithium metal anodes for use in flexible Li-S full cells.

关键词： Single atom Lithium metal anode Lithium deposition Lithium-sulfur battery

Synthesis,Structure and Magnetic Behavior of a Novel Series of Trinuclear Windwheel Complexes

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Chinese Journal of Chemistry 2023年第24期41卷 3662-3668页

作者： Rong Luo Chen-Ze Xie Ming-guang Chen Hai-yan Shi Xiang-Jian Kong Yu-Hua Fan Feng Shao Key Laboratory of Marine Chemistry Theory and Technology Ministry of EducationCollege of Chemistry and Chemical EngineeringOcean University of ChinaQingdaoShandong266100 China Baotou Research Institute of Rare Earths BaotouInner Mongolia014040 China State Key Laboratory of Physical Chemistry of Solid Surfaces College of Chemistry and Chemical EngineeringXiamen UniversityXiamenFujian361005 China

A new family of trinuclear windwheel complexes with molecular formula [M^(II)_(3)(tpa)_(3)(μ-ttc)](ClO_(4))_(3)·n(sol) (ttc = 1,3,5-triazine-2,4,6-trithiol;tpa = tris(2-pyridylmethyl)amine;M = Mn,n = 2,sol = CH_(3)CN,1;M = Co,n = 1,sol = CH_(3)CN,2;M = Ni,n = 0,3) were synthesized and ***-crystal X-ray diffraction revealed that three metal centers in 1—3 are connected by ttc bridge,forming a regular triangular MII3 *** metal center is bonded by chelating S,N atoms from ttc and by N atoms from *** studies showed that 1—3 displayed antiferromagnetic behavior and further gave the easy-axis anisotropy (D = −0.77 cm^(−1) for 1 and −8.13 cm^(−1) for 2) and easy-plane anisotropy (D = 5.08 cm^(−1) for 3).Moreover,2 exhibited field-induced slow magnetic relaxation behavior and their effective energy barriers were roughly evaluated Ueff = 6.9 K.

关键词： Cluster compounds Crystal growth Magnetic properties Slow magnetic relaxation Magnetic anisotropy

20-Hydroxyecdysone Improves Neuronal Differentiation of Adult Hippocampal Neural Stem Cells in High Power Microwave Radiation-Exposed Rats

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Biomedical and Environmental Sciences 2022年第6期35卷 504-517页

作者： LIU Jing Jing ZHANG Hong yan CHEN Xin ZHANG guang Bin LIN Jiang Kai FENG Hua CHU Wei Hua Department of Neurosurgery and Key Laboratory of Neurotrauma Southwest HospitalThird Military Medical University(Army Medical University)Chongqing 400038China Department of Occupational Health Faculty of Preventive MedicineThird Military Medical University(Army Medical University)Chongqing 400038China

Objective The hippocampus is thought to be a vulnerable target of microwave *** aim of the present study was to investigate whether 20-hydroxyecdysone(20E)acted as a fate regulator of adult rat hippocampal neural stem cells(NSCs).Furthermore,we investigated if 20E attenuated high power microwave(HMP)radiation-induced learning and memory *** Sixty male Sprague-Dawley rats were randomly divided into three groups:normal controls,radiation treated,and radiation+20E *** in the radiation and radiation+20E treatment groups were exposed to HPM radiation from a microwave emission *** learning and memory abilities of the rats were assessed using the Morris water maze *** adult rat hippocampal NSCs were isolated in vitro and cultured to evaluate their proliferation and *** addition,hematoxylin&eosin staining,western blotting,and immunofluorescence were used to detect changes in the rat brain and the proliferation and differentiation of the adult rat hippocampal NSCs after HPM radiation *** The results showed that 20E induced neuronal differentiation of adult hippocampal NSCs from HPM radiation-exposed rats via the Wnt3a/β-catenin signaling pathway in ***,20E facilitated neurogenesis in the subgranular zone of the rat brain following HPM radiation *** of 20E attenuated learning and memory deficits in HPM radiation-exposed rats and frizzled-related protein(FRZB)reduced the 20E-induced nuclear translocation ofβ-catenin,while FRZB treatment also reversed 20E-induced neuronal differentiation of NSCs in *** These results suggested that 20E was a fate regulator of adult rat hippocampal NSCs,where it played a role in attenuating HPM radiation-induced learning and memory deficits.

关键词： High power microwave Hippocampus 20-hydroxyecdysone Learning and memory

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中医药治疗原发性痛经相关通路的研究进展

中国现代中药 2024年第10期26卷 1806-1814页

作者：任俊玲王霞孙玉然孙晖闫广利孔玲韩莹王喜军黑龙江中医药大学经方与现代中药融合创新全国重点实验室/国家中医药管理局中医方证代谢组学研究中心黑龙江哈尔滨150040

原发性痛经(PD)是最为常见的妇科疾病,具有长期、周期性发作的特点,严重影响患者生活质量及身心健康。由于化学药治疗的不良反应发生率较高,停药后容易复发,而中医药疗法由于其独特的安全性及有效性已然成为临床治疗PD的替代疗法。总结... 详细信息

原发性痛经(PD)是最为常见的妇科疾病,具有长期、周期性发作的特点,严重影响患者生活质量及身心健康。由于化学药治疗的不良反应发生率较高,停药后容易复发,而中医药疗法由于其独特的安全性及有效性已然成为临床治疗PD的替代疗法。总结近年来中医药防治PD相关通路的研究,发现中医药可通过调节丝裂原活化蛋白激酶信号通路、NOD样受体蛋白3信号通路、核转录因子-κB信号通路及花生四烯酸代谢通路发挥抑制炎性细胞因子、减弱疼痛信号、抑制子宫平滑肌收缩等效应,进而起到治疗PD的作用。可为今后的中医药治疗PD的作用机制研究提供参考。

关键词：中医药原发性痛经信号通路作用机制研究进展

Alternative splicing patterns of doublesex reveal a missing link between Nix and doublesex in the sex determination cascade of Aedes albopictus

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Insect Science 2021年第6期28卷 1601-1620页

作者： Binbin Jin Yijie Zhao Yunqiao Dong Peiwen Liu yan Sun Xiaocong Li Xin Zhang Xiao-guang Chen Jinbao Gu Department of Pathogen Biology Guangdong Provincial Key Laboratory of Tropical Disease ResearchSchool of Public HealthSouthern Medical UniversityGuangzhou510515China Reproductive Medical Centre of guangdong Women and Children Hospital Guangzhou511442China

Sexual development in insects is regulated by a complicated hierarchical cascade of sex *** primary signals are diverse,whereas the central nexus doublesex(dsx)gene is relatively conserved within the ***(Stegomyia)albopictus is an important vector with an extensive worldwide *** previously reported that *** dsx(Aalbdsx)yields one male-(Aalbdsx^(M))and three female-specific isoforms(Aalbdsx^(F1-3));however,the spatiotemporal expression profiles and mechanisms regulating sex-specific alternative splicing require further *** this study,we demonstrated that the Aalbdsx^(M) messenger RNA(mRNA)represents the default pattern when analyzed in human foreskin fibroblasts and HeLa *** combined reverse transcription polymerase chain reaction with RNA immunoprecipitation using specific antibodies against tagged *** male-determining factor AalNix and confirmed that AalNix indirectly regulates dsx pre-mRNA and regulates its alternative *** the early embryo stage(0-2 and 4-8 h),maternal dsx^(F) and default splicing dsx^(M) were detected in both sexes;the expression of dsx^(M) then decreased until sufficient AalNix transcripts accumulated in male embryos at 20-24 *** findings suggest that one or more potential dsx splicing enhancers can shift dsx^(M) to dsx^(F) in both sexes;however,the presence of Nix influences the function of this unknown splicing enhancer and ultimately leads to the formation of dsx^(M) in ***,our results provide important insight into the regulatory mechanism of dsx alternative splicing in the mosquito.

关键词： Aedes albopictus alternative splicing Doublesex\mosquito control sex determination

Evaluation of microRNA expression profiles in human sperm frozen using permeable cryoprotectant-free droplet vitrification and conventional methods

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Asian Journal of Andrology 2024年第4期26卷 366-376页

作者： Li-Xin Zhang Jing Mao yan-Dong Zhou guang-Yao Mao Run-Fa Guo Hong-Shan Ge Xia Chen Department of Histology and Embryology Medical SchoolNantong UniversityNantong 226001China Department of Reproductive Medicine The Affiliated Taizhou People’s Hospital of Nanjing Medical UniversityTaizhou School of Clinical MedicineNanjing Medical UniversityTaizhou 225300China.

For sperm cryopreservation,the conventional method,which requires glycerol,has been used for a long *** addition,the permeable cryoprotectant-free vitrification method has been continuously *** the differences of cryopreservation effects between the two methods have being studied,differences in microRNA(miRNA)profiles between them remain *** this study,we investigated the differences in miRNA expression profiles among conventional freezing sperm,droplet vitrification freezing sperm and fresh human *** also analyzed the differences between these methods in terms of differentially expressed miRNAs(DEmiRs)related to early embryonic development and paternal *** results showed no significant differences between the cryopreservation methods in terms of sperm motility ratio,plasma membrane integrity,DNA integrity,mitochondrial membrane potential,acrosome integrity,and ultrastructural ***,sperm miRNA-sequencing showed differences between the two methods in terms of the numbers of DEmiRs(28 and 19 with vitrification using a nonpermeable cryoprotectant and the conventional method,respectively)in postthaw and fresh sperm *** related to early embryonic development and paternal epigenetics mainly included common DEmiRs between the *** results showed that the differences between conventional freezing and droplet vitrification were minimal in terms of miRNA expression related to embryonic development and *** in sperm miRNA expression due to freezing are not always detrimental to embryonic *** study compared differences in miRNA expression profiles before and after cryopreservation between cryopreservation by conventional and vitrification *** offers a new perspective to evaluate various methods of sperm cryopreservation.

关键词： cryopreservation cryoprotectant-free vitrification early embryonic development paternal epigenetic inheritance sperm miRNAs sucrose

In situ synchrotron X-ray diffraction analysis of deformation behavior of a Nb/NiTi composite for biomedical applications

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Rare Metals 2021年第3期40卷 600-606页

作者： Shun Guo Rui-Tang Wu Yu-Lu Shi yan-Pin Hou Wen Ma guang-Lei Liu Hai-Xia Liu Xiao-Nong Cheng School of Materials Science and Engineering Jiangsu UniversityZhenjiang 212013China Youke Publishing Co. Ltd.GRINM Group Co.Ltd.Beijing 100088China

The deformation behavior involved in Nb/NiTi composite for biomedical applications within a large macroscopic strain range was investigated by tensile loading-unloading test and in situ synchrotron X-ray diffraction(SXRD).Experimental results show that during loading,the Nb/NiTi composite experiences the elastic elongation of B2-NiTi austenitic,B19’-NiTi martensitic and β-Nb phases,B2→ B19’ stress-induced martensitic(SIM) transformation and tensile plastic deformation of β-Nb *** unloading,the deformation behavior involved in Nb/NiTi composite includes the elastic recovery of B2-NiTi austenitic,B19’-NiTi martensitic and β-Nb phases,reverse phase transformation B19’→B2 and compressive deformation of p-Nb *** martensitic transformation in this composite is almost reversible and occurs in a localized *** results might contribute to a comprehensive understanding of the deformation mechanism involved in Nb/NiTi composite and shed some light on design and development of novel composites with a combination of good biocompatibility and excellent superelasticity for biomedical applications.

关键词： Nb/NiTi composite Deformation behavior Superelasticity Localized martensitic transformation