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| 1 | High-performance Zn battery with transition metal ions co-regulated electrolytic MnO_(2)显示文摘Electrolytic MnO_(2)/Zn batteries have attracted extensive attention for use in large-scale energy storage applications due to their low cost,high output voltage,safety,and environmental friendliness.However,the poor electrical conductivity of MnO_(2)limits its deposition and dissolution at large capacities,which leads to sluggish reaction kinetics and drastic capacity decay.Here,we report a theory-guided design principle for an electrolytic MnO_(2)/Zn battery co-regulated with transition metal ions that has improved electrochemical performance in terms of deposition and stripping chemistries.We start with first-principles calculations to predict the electrolytic effects of regulating transition metal ions in the deposition/stripping chemistry of the MnO_(2)cathode.The results indicate that with the simultaneous incorporation of strongly electronegative Co and Ni,the MnO_(2)cathode tends to possess more active electron states,faster charge-transfer kinetics,and better electrical conductivity than either MnO_(2)regulated with Co or Ni on their own,or pristine MnO_(2);hence,this co-regulation is beneficial for the cathode solid/liquid MnO_(2)/Mn2t reactions.We then fabricate and demonstrate a novel Co2t and Ni2t coregulated MnO_(2)/Zn(Co-Ni-MnO_(2)/Zn)battery that yields significantly better electrochemical performance,finding that the synergistic regulation of Co and Ni on MnO_(2)can significantly increase its intrinsic conductivity and achieve high rates and Coulombic efficiencies at large capacities.The aqueous Co-Ni-MnO_(2)/Zn battery exhibits a high rate(10C,100 mA cm^(-2)),high Coulombic efficiency(91.89%),and excellent cycling stability(600 cycles without decay)at a large areal capacity of 10 mAh cm^(-2).Our proposed strategy of co-regulation with transition metal ions offers a versatile approach for improving the electrochemical performance of aqueous electrolytic MnO_(2)/Zn batteries in large-scale energy storage applications. | Mingyan Chuai Jinlong Yang Mingming Wang Yuan Yuan Zaichun Liu Yan Xu Yichen Yin Jifei Sun Xinhua Zheng Na Chen Wei Chen | 2021 | eScience2021，1，2： | 8 |
| 2 | Alterations in gut microbiota and metabolites associated with altitude-induced cardiac hypertrophy in rats during hypobaric hypoxia challenge显示文摘The gut microbiota is involved in host responses to high altitude.However,the dynamics of intestinal microecology and their association with altitude-related illness are poorly understood.Here,we used a rat model of hypobaric hypoxia challenge to mimic plateau exposure and monitored the gut microbiome,short-chain fatty acids(SCFAs),and bile acids(BAs)over 28 d.We identified weight loss,polycythemia,and pathological cardiac hypertrophy in hypoxic rats,accompanied by a large compositional shift in the gut microbiota,which is mainly driven by the bacterial families of Prevotellaceae,Porphyromonadaceae,and Streptococcaceae.The aberrant gut microbiota was characterized by increased abundance of the Parabacteroides,Alistipes,and Lactococcus genera and a larger Bacteroides to Prevotella ratio.Trans-omics analyses showed that the gut microbiome was significantly correlated with the metabolic abnormalities of SCFAs and BAs in feces,suggesting an interaction network remodeling of the microbiome-metabolome after the hypobaric hypoxia challenge.Interestingly,the transplantation of fecal microbiota significantly increased the diversity of the gut microbiota,partially inhibited the increased abundance of the Bacteroides and Alistipes genera,restored the decrease of plasma propionate,and moderately ameliorated cardiac hypertrophy in hypoxic rats.Our results provide an insight into the longitudinal changes in intestinal microecology during the hypobaric hypoxia challenge.Abnormalities in the gut microbiota and microbial metabolites contribute to the development of high-altitude heart disease in rats. | Zhiyuan Pan Yichen Hu Zongyu Huang Ni Han Yan Li Xiaomei Zhuang Jiye Yin Hui Peng Quansheng Gao Wenpeng Zhang Yong Huang Yujun Cui Yujing Bi Zhenjiang Zech Xu Ruifu Yang | 2022 | Science China(Life Sciences)2022，65，10： | 5 |
| 3 | Influence of 3d transition-metal substitution on the oxygen reduction reaction electrocatalysis of ternary nitrides in acid显示文摘The development of non-precious,acid-stable,oxygen reduction reaction(ORR)electrocatalysts can significantly aid the commercialization of proton exchange membrane fuel cells(PEMFCs).We report a survey of the ORR electrocatalysis on 3d metal substituted(M=Mn,Fe,Co)molybdenum and tungsten nitrides in acidic environments.We find that molybdate catalysts are more active than tungstates,with the specific activity depending on the chemistry of the substituted 3d metal.In both families,more electronegative 3d metals led to higher ORR activity(i.e.,Co>Fe>Mn).We attribute this result to the ability of the more electro negative 3d metal to withdraw electro ns from the Mo-or W-based active sites,effectively oxidizing the metal centers of the catalysts.Based on our observation,future nitride ORR electrocatalysts can be further optimized by oxidizing the Mo sites further by,for example,addi ng eve n more electro negative dopa nt metals or in corporati ng anion vaca ncies. | Kevin E. Fritz Yichen Yan Jin Suntivich | 2019 | Nano Research2019，12，9： | 2 |
| 4 | Formation mechanism of the Lidang circular structure in the Guangxi Province显示文摘The Lidang circular structure in the center of the Guangxi Province is about 8 km in diameter. This structure appears as an abnormal shallow depression that has disturbed the rather harmonic regional joint systems. Its unique occurrence in the whole region, the circular morphology, negative topography, and the spatial distribution of interior and exterior strata are all consistent with those of impact craters that are formed by asteroidal or cometary collision. To test the impact hypothesis, we carried out both field investigation and remote sensing study of this structure. Regional geological history suggests that if the impact hypothesis were correct, the impact event should have occurred at or after the Early Permian. Field investigation found that the strata inside and outside the crater are dominated by parallel stacks of Lower and Upper Permian limestone that have various thicknesses and different mud contents. The layers of limestone within and outside the circular structure have identical attitudes;no structural disturbances were visible in the outcrops. Field investigations provide conclusive evidence against the impact cratering hypothesis. A high-resolution digital elevation model shows that the spatial distribution of rounded mountains within the structure is controlled by faint but continual extension of joints, suggesting that the crater interior has gone through a much higher degree of erosion. Therefore, regional joints that had once existed within the crater are preserved less well than exterior terrains, forming the abruptly disrupted circular depression. Differential erosion, as the possible formation mechanism of the Lidang structure, is consistent with the different mud contents found between the interior and exterior limestone. The circular outline of this structure may correspond to the shape of the original deposition basin. In conclusion, the Lidang circular structure is a polje formed by karstification, not an astrobleme. | Pan Yan ZhiYong Xiao YiZhen Ma YiChen Wang Jiang Pu | 2019 | Earth and Planetary Physics2019，3，4： | 2 |
| 5 | SARS-CoV-2 impairs the disassembly of stress granules and promotes ALS-associated amyloid aggregation显示文摘The nucleocapsid(N)protein of SARS-CoV-2 has been reported to have a high ability of liquid-liquid phase separation,which enables its incorporation into stress granules(SGs)of host cells.However,whether SG invasion by N protein occurs in the scenario of SARS-CoV-2 infection is unknow,neither do we know its con-sequence.Here,we used SARS-CoV-2 to infect mam-malian cells and observed the incorporation of N protein into SGs,which resulted in markedly impaired self-dis-assembly but stimulated cell cellular clearance of SGs.NMR experiments further showed that N protein binds to the SG-related amyloid proteins via non-specific tran-sient interactions,which not only expedites the phase transition of these proteins to aberrant amyloid aggre-gation in vitro,but also promotes the aggregation of FUS with ALS-associated P525L mutation in cells.In addition,we found that ACE2 is not necessary for the infection of SARS-CoV-2 to mammalian cells.Our work indicates that SARS-CoV-2 infection can impair the dis-assembly of host SGs and promote the aggregation of SG-related amyloid proteins,which may lead to an increased risk of neurodegeneration. | Yichen Li Shuaiyao Lu Jinge Gu Wencheng Xia Shengnan Zhang Shenqing Zhang Yan Wang Chong Zhang Yunpeng Sun Jian Lei Cong Liu Zhaoming Su Juntao Yang Xiaozhong Peng Dan Li | 2022 | Protein & Cell2022，13，8： | 1 |
| 6 | Sugar transfer of nanomaterials and flexible electrodes显示文摘Nanomaterials with various dimensionalities(e.g.,nanowires,nanofilms,two-dimensional materials,and three-dimensional nanostructures)have shown great potential in the recent development of flexible electronics.Conventionally,organic solvents are inevitable while integrating nanomaterials onto flexible substrates,where polymer mediator-assisted transfer techniques are involved.This often damages the flexible substrate and thus hamper the large-scale application of nanomaterials.Here we report a method using watersoluble sugar as a mediator to facilely transfer nanomaterials onto rigid or flexible substrates.This method requires no organic solvent during transfer.More importantly,the morphology and properties of transferred nanomaterials,such as shape,microstructure,resistivity,and transmittance are well preserved on the target substrate.We believe that this universal and rapid transfer method can greatly advance the applications of nanomaterials in the field of flexible devices and beyond. | Tianzeng Hong Tianze Shen Junlong Yang Yichen Sun Jianming Zhang Haiyang Pan Ying Hong Yan Wang Shuo Chen Yue Zhao Chuan Fei Guo | 2020 | International Journal of Smart and Nano Materials2020，11，1： | 1 |
| 7 | Maternal genetic history of ancient Tibetans over the past 4000 years显示文摘The settlement of the Tibetan Plateau epitomizes human adaptation to a high-altitude environment that poses great challenges to human activity.Here,we reconstruct a 4000-year maternal genetic history of Tibetans using 128 ancient mitochondrial genome data from 37 sites in Tibet.The phylogeny of haplotypes M9a1a,M9a1b,D4g2,G2a’c,and D4i show that ancient Tibetans share the most recent common ancestor with ancient Middle and Upper Yellow River populations around the Early and Middle Holocene.In addition,the connections between Tibetans and Northeastern Asians vary over the past 4000 years,with a stronger matrilineal connection between the two during 4000 BPe3000 BP,and a weakened connection after 3000 BP,that are coincident with climate change,followed by a reinforced connection after the Tubo period(1400 BPe1100 BP).Besides,an over 4000-year matrilineal continuity is observed in some of the maternal lineages.We also find the maternal genetic structure of ancient Tibetans is correlated to the geography and interactions between ancient Tibetans and ancient Nepal and Pakistan populations.Overall,the maternal genetic history of Tibetans can be characterized as a long-term matrilineal continuity with frequent internal and external population interactions that are dynamically shaped by geography,climate changes,as well as historical events. | Ganyu Zhang Can Cui Shargan Wangdue Hongliang Lu Honghai Chen Lin Xi Wei He Haibing Yuan Tinley Tsring Zujun Chen Feng Yang Tashi Tsering Shuai Li Norbu Tashi Tsho Yang Yan Tong Xiaohong Wu Linhui Li Yuanhong He Peng Cao Qingyan Dai Feng Liu Xiaotian Feng Tianyi Wang Ruowei Yang Wanjing Ping Ming Zhang Xing Gao Yichen Liu Wenjun Wang Qiaomei Fu | 2023 | Journal of Genetics and Genomics2023，50，10： | 1 |
| 8 | Bioadaptation of implants to In vitro and In vivo oxidative stress pathological conditions via nanotopography-induced FoxO1 signaling pathways to enhance Osteoimmunal regeneration显示文摘Varieties of pathological conditions,including diabetes,are closely related to oxidative stress(OS),but the osseointegration or bioadaptation of implants to OS and the related mechanism remain poorly explored.In this study,the antioxidation and osteoimmune regeneration of titanium implants with micro/nanotopographies were evaluated under H2O2-,lipopolysaccharide(LPS)-and hyperglycemia-mediated cellular OS models and in diabetic rats as a representative animal model of OS.TiO2 nanotube(TNT)coating on titanium implants directly induced superior osteogenic differentiation of bone mesenchymal stem cells(MSCs)and osseointegration compared with microscale sand blasted-acid etched topography(SLA)under OS,attributed to higher superoxide dismutase 2 activity,the neutralization of intracellular reactive oxygen species(ROS),and less apoptosis.Mechanistically,the oxidation resistance on TNT is driven by upregulated forkhead box transcription factor O1(FoxO1),which is abolished after knockdown of FoxO1 via shRNA in MSCs.Indirectly,TNT also alleviates OS in macrophages,therefore inducing a higher portion of the M2 phenotype under OS with increased secretion of the anti-inflammatory cytokine IL-10,further promoting the osseoimmunity capacity compared with SLA.The current study not only suggests the potential application of TiO2 nanotube-coated titanium implants in compromised conditions but also provides a systematic evaluation strategy for the future development of bone biomaterials. | Jingyan Huang Ruoqi Li Jinghong Yang Min Cai Yichen Lee Anxun Wang Bin Cheng Yan Wang | 2021 | Bioactive Materials2021，6，10： | 1 |
| 9 | Population Structure Analysis and Genome-Wide Association Study of Tea(Camellia sinensis(L.)Kuntze)Germplasm in Qiannan,China,Based on SLAF-Seq Technology显示文摘Duyun Maojian tea is a famous tea in China.In this study,the specific-locus amplified fragment(SLAF)sequencing method was used to analyze the population structure and conduct a genome-wide association study(GWAS)of 2 leaf traits of 123 tea plants in Qiannan,China.A total of 462,019 SLAF tags and 11,362,041 single-nucleotide polymorphism(SNP)loci were obtained.The results of phylogenetic tree analysis,cluster analysis,and principal component analysis showed that 123 tea germplasms were clustered into three groups,and the heterozygosity rates for Groups I,II,and II were 0.206,0.224,and 0.34,respectively.Generally,tea germplasms in a production area are clustered in a group,indicating that tea germplasms in different production areas have certain genetic diversity.The traditional Duyun Maojian tea core production areas,TS and DC-SJ,are clustered into Group I and Group II respectively,while the ZY production area is relatively independent in Group III.Furthermore,based on GWAS analysis,11 candidate genes related to leaf apex and 7 candidate genes related to leaf shape were obtained.This study clarified the genetic relationship among eight Duyun Maojian tea production areas and obtained candidate genes related to leaf apex and leaf shape development.The results showed that population structure and candidate genes are an effective basis for the breeding of Duyun Maojian tea germplasm. | Fen Zhang Weili Tian Lu Cen Litang Lv Xiaofang Zeng Yulu Chen Yichen Zhao Yan Li | 2022 | Phyton-International Journal of Experimental Botany2022，91，4： | 1 |
| 10 | fault detection in a diesel engine by analyzing the instantaneous angular speed 显示文摘 | Jianguo Yang Lijun Pu Zhihua Wang Yichen Zhou and xinping Yan | 2001 | Mechanical systems and signal processing2001，15，3： | 1 |
| 11 | fault detection in a diesel engine by analyzing the instantaneous angular speed显示文摘 | Jianguo Yang Lijun Pu Zhihua Wang Yichen Zhou Xinping Yan | 2001 | Mechanical systems and signal processing2001，15，3： | 1 |
| 12 | Physicochemical and Tribological Properties of Anti-Seize Thread Lubricant显示文摘The di-aromatics base oil and graphite powder,blended with the viscosity index improver,and the anti-oxidant and rheological additive,were used to prepare a kind of anti-seize thread lubricant.Its physical chemistry properties,such as water resistance,thermal oxidation and aging properties,and tribological performance,were evaluated and compared with those of some commercial products.The results show that the overall performance of the anti-seize thread lubricant could meet the level of some commercial products,while its some properties such as thermal stability,anti-wear and anti-friction properties were better.The said anti-seize thread lubricant is more suitable for use under high temperature conditions. | Wang Zhimin Xiang Shuo Liu Xiaoqiang Bao Yichen Shi Xiuqiang He Yan | 2021 | China Petroleum Processing & Petrochemical Technology2021，23，4： | 1 |
| 13 | Self-assembled Supramolecular Artificial Transmembrane Ion Channels:Recent Progress and Application显示文摘Natural protein channels have evolved with fantastic spatial structures,which play pivotal physiological functions in all living systems.Learning from nature,chemical scientists have developed a myriad of artificial transmembrane ion channels by using various chemical strategies,among which the non-covalent supramolecular ion channels exhibit remarkable advantages over other forms(e.g.,single-molecule ion channel),which exhibited facile preparation methods,easier structural modification and functionalization.In this review,we have systematically summarized the recent progress of supramolecular self-assembled artificial transmembrane ion channels,which were classified by different self-assembly mechanisms,such as hydrogen bonds,π-πinteractions,etc.Detailed preparation process and self-assembly strategies of the supramolecular ion channels have been described.Moreover,potential biomedical applications of the supramolecular ion channels have also been carefully discussed in this review.Finally,future opportunities and challenges facing this field were also elaborately discussed.It is anticipated that this review could provide a panoramic sketch and future directions towards the construction of novel artificial ion channels with novel functions and biomedical applications. | LUO Yichen ZHU Canhong ZHANG Tianlong YAN Tengfei LIU Junqiu | 2023 | Chemical Research in Chinese Universities2023，39，1： | 0 |
| 14 | Legal Regulation of Unfair Application User Agreements in China显示文摘With the increase in the content and specialization of user agreements,the vast majority of users seldom,if ever,read the user agreements of mobile applications.In the face of absolutely strong application providers,users are forced to accept user agreements out of necessity,which leaves an opportunity for application providers to stipulate unfair terms,and in the long run,users will fall into rational indifference to the defense of unfair user agreements.In order to solve the above problems,this paper proposes that for online platforms with a large number of users and a dominant position in the market,they should convert most of the contents in the application agreement into the legal provisions of the model contract,and display only the terms that the users are able to choose and those that modify the model contract when entering the application.Among the invalid blacklists in the model contract,the law should add new clauses that explicitly prohibit the set-off of uncertain liquidated damages in format contracts,unnecessary authorization of personal information,format jurisdiction,and unlimited copyright licenses to adequately protect the rights and interests of vulnerable users.In addition,the law should grant users the right of withdrawal and a certain degree of refusal in case of substantial obstruction,in order to balance the position and interests of application providers and users.Finally,the law should establish a public interest litigation system and a pre-censorship system to build a final line of defense for a comprehensive review of the fairness of user agreements. | LAN Zihang LUO Yichen YAN Yanru | 2023 | US-China Law Review2023，20，5： | 0 |
| 15 | MomL inhibits bacterial antibiotic resistance through the starvation stringent response pathway显示文摘Antibiotic resistance in gram-negative pathogens has become one of the most serious global public health threats.The role of the N-acyl homoserine lactone(AHL)-mediated signaling pathway,which is widespread in gram-negative bacteria,in the bacterial resistance process should be studied in depth.Here,we report a degrading enzyme of AHLs,MomL,that inhibits the antibiotic resistance of Pseudomonas aeruginosa through a novel mechanism.The MomL-mediated reactivation of kanamycin is highly associated with the relA-mediated starvation stringent response.The degradation of AHLs by MomL results in the inability of LasR to activate relA,which,in turn,stops the activation of downstream rpoS.Further results show that rpoS directly regulates the type VI secretion system H2-T6SS.Under MomL treatment,inactivated RpoS fails to regulate H2-T6SS;therefore,the expression of effector phospholipase A is reduced,and the adaptability of bacteria to antibiotics is weakened.MomL in combination with kanamycin is effective against a wide range of gram-negative pathogenic bacteria.Therefore,this study reports a MomL-antibiotic treatment strategy on antibiotic-resistant bacteria and reveals its mechanism of action. | Qin Dou Jin Yuan Rilei Yu Jiahui Yang Jiayi Wang Yuxiang Zhu Jing Zhong Hongan Long Zhiqing Liu Xianghong Wang Yuying Li Yichen Xiao Jiazhen Liang Xiao-Hua Zhang Yan Wang | 2022 | mLife2022，1，4： | 0 |
| 16 | Ordered Arrangement of Different Metals in Discrete and Infinite Building Blocks for Heterometallic Metal-Organic Frameworks Construction显示文摘Construction of sophisticated metal-organic frameworks(MOFs)with multiple kinds of metals is essential for further advancement of porous materials toward various applications.Order and arrangement of the metals in the secondary building units(SBUs)greatly influence the MOF structures outcome.While most of the previous heterometallic MOFs either have multiple kinds of discrete SBUs with different metals,or single kind of SBU with mixed metals inside,other forms of metal distribution still need further exploration.Herein,a bifunctional linker is applied to achieving differential coordination toward different metals.With Ce and Cu serving as the carboxylate-philic and pyrazole-philic metal ions,three heterometallic MOFs(FDM-121—FDM-123)are synthesized.In addition to the common metal arrangement modes,the new MOFs provide a joint reticulation of a discrete SBU and an infinite chain-like SBU featuring different metals in FDM-121,and an assembly from heterometallic infinite chain-like SBU in FDM-122.This study demonstrates the potential of bifunctional linkers for the design and synthesis of heterometallic MOFs and opens up the possibilities to create MOFs with tailored properties for specific applications. | XU Huoshu YAN Yu WU Yichen WANG Junyi TANG Yi LI Qiaowei | 2023 | Chemical Research in Chinese Universities2023，39，6： | 0 |
| 17 | Indications,strategies,and development on prostate targeted biopsy:Report of the Panjiayuan Consensus Conference 2022显示文摘Prostate biopsy is the gold standard for diagnosing prostate cancer(PCa).Prostate targeted biopsy(TB)having a higher rate of detecting clinically significant PCa(csPCa)than traditional systematic biopsy(SB)is supported by high-quality evidence.However,the TB indications and strategies are controversial.The National Cancer Center/Cancer Hospital,Chinese Academy of Medical Sciences,invited a panel of recognized urology experts in PCa to address these topics at the Panjiayuan Consensus Conference 2022.The conference results on prostate TB are presented herein.The National Cancer Center/Cancer Hospital,Chinese Academy of Medical Sciences identified 10 key areas of prostate biopsy:(1)selection of imaging examination;(2)indications of TB;(3)transperineal and transrectal prostate biopsy;(4)TB pathways;(5)TB and SB;(6)three techniques of TB;(7)the number of TB cores needed for one lesion;(8)core number for SB;(9)free-hand TB;(10)future development of TB/prostate diagnosis.Thus,a panel of 25 recognized urologists and 2 radiologists from China were invited to attend this conference.The panel voted anonymously on 14 predetermined questions.Voting was based on the panelists'clinical practice and opinion,rather than high-level evidence.The voting outcomes were supported by the panel unequally,and details of the voting results were reported.The voting results can help clinicians to decide on biopsy timing and proper strategies,for which guidelines are sparse.We also focused on the future development of TB and SB,such as the combined pathway of TB and SB,techniques of TB,biopsy cores,free-hand TB,and prostate-specific membrane antigen positron emission tomography/computed tomography. | Gang Song Yajian Li Huimin Hou Yichen Wang Xuejuan Wang Shaoxi Niu Xiang Tu Hongliang Shen Zhien Zhou Yinbing Wang Ruiyi Yan Ning Xu Gejun Zhang Hailong Hao Shudong Zhang Ben Liu Bin Yang Baojun Wang Haifeng Wang Haifeng Huang Qian Zhang Baijun Dong Yonghong Li Jianbin Bi Weigang Yan Hongqian Guo Yuanjie Niu Guosheng Yang Ming Liu Qiang Wei Nianzeng Xing | 2023 | UroPrecision2023，1，1： | 0 |
| 18 | mTORC2/RICTOR exerts differential levels of metabolic control in human embryonic,mesenchymal and neural stem cells显示文摘Dear Editor,Stem cells,including pluripotent stem cells and adult stem cells,possess the remarkable capability of being able to selfrenew while at the same time having potential to differentiate into different cell lineages and functionally distinct cell types.Human embryonic stem cells(hESCs)can differentiate into all adult stem cell types,including human mesenchymal stem cells(hMSCs)and human neural stem cells(hNSCs),but can also give rise to all terminally differentiated cell types(Wang et al.,2021a).Through the continuous replenishment of differentiated cells,stem cells support tissue homeostasis and respond to tissue injuries.Given the promising applications of stem cells in cell therapy and regenerative medicine,insights into molecular events underlying stem cell maintenance,self-renewal ability and pluripotency,continue to garner strong interest(Shan et al.,2021).Although metabolic pathways have been implicated in the reciprocal regulations of stem cell self-renewal and differentiation as well as organ homeostatic maintenance(Garcia-Prat et al.,2017),central aspects of how metabolic requirements differ and are regulated across the various types of human stem cells in our body remain enigmatic. | Qun Chu Feifei Liu Yifang He Xiaoyu Jiang Yusheng Cai Zeming Wu Kaowen Yan Lingling Geng Yichen Zhang Huyi Feng Kaixin Zhou Si Wang Weiqi Zhang Guang-Hui Liu Shuai Ma Jing Qu Moshi Song | 2022 | Protein & Cell2022，13，9： | 0 |
| 19 | Versatile photonic molecule switch in multimode microresonators显示文摘Harnessing optical supermode interaction to construct artificial photonic molecules has uncovered a series of fundamental optical phenomena analogous to atomic physics.Previously,the distinct energy levels and interactions in such two-level systems were provided by coupled microresonators.The reconfigurability is limited,as they often require delicate external field stimuli or mechanically altering the geometric factors.These highly specific approaches also limit potential applications.Here,we propose a versatile on-chip photonic molecule in a multimode microring,utilizing a flexible regulation methodology to dynamically control the existence and interaction strength of spatial modes.The transition between single/multi-mode states enables the“switched-off/on”functionality of the photonic molecule,supporting wider generalized applications scenarios.In particular,“switched-on”state shows flexible and multidimensional mode splitting control in aspects of both coupling strength and phase difference,equivalent to the a.c.and d.c.Stark effect.“Switched-off”state allows for perfect low-loss single-mode transition(Qi~10 million)under an ultra-compact bend size(FSR~115 GHz)in a foundry-based silicon microring.It breaks the stereotyped image of the FSR-Q factor trade-off,enabling ultra-wideband and high-resolution millimeter-wave photonic operations.Our demonstration provides a flexible and portable solution for the integrated photonic molecule system,extending its research scope from fundamental physics to real-world applications such as nonlinear optical signal processing and sixth-generation wireless communication. | Zihan Tao Bitao Shen Wencan Li Luwen Xing Haoyu Wang Yichen Wu Yuansheng Tao Yan Zhou Yandong He Chao Peng Haowen Shu Xingjun Wang | 2024 | Light(Science & Applications)2024，13，3： | 0 |
| 20 | Molecular ferroelectric/semiconductor interfacial memristors for artificial synapses显示文摘With the burgeoning developments in artificial intelligence,hardware implementation of artificial neural network is also gaining pace.In this pursuit,ferroelectric devices(i.e.,tunneling junctions and transistors)with voltage thresholds were recently proposed as suitable candidates.However,their development is hindered by the inherent integration issues of inorganic ferroelectrics,as well as poor properties of conventional organic ferroelectrics.In contrast to the conventional ferroelectric synapses,here we demonstrated a two-terminal ferroelectric synaptic device using a molecular ferroelectric(MF)/semiconductor interface.The interfacial resistance can be tuned via the polarization-controlled blocking effect of the semiconductor,owing to the high ferroelectricity and field amplification effect of the MF.Typical synaptic features including spike timing-dependent plasticity are substantiated.The introduction of the semiconductor also enables the attributes of optoelectronic synapse and in-sensor computing with high image recognition accuracies.Such interfaces may pave the way for the hardware implementation of multifunctional neuromorphic devices. | Yichen Cai Jialong Zhang Mengge Yan Yizhou Jiang Husnain Jawad Bobo Tian Wenchong Wang Yiqiang Zhan Yajie Qin Shisheng Xiong Chunxiao Cong Zhi-Jun Qiu Chungang Duan Ran Liu Laigui Hu | 2022 | npj Flexible Electronics2022，6，1： | 0 |
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