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Side ionic-gated perovskite/graphene heterojunction synaptic transistor with bipolar photoresponse for neuromorphic computing

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Photonics Research 2024年第6期12卷 1167-1174页

作者： XIAOYING HE MINGHAO XU SHILIN LIU KUN WANG BOWEN CAO LAN rao XIANGJUN xin School of Electronic Engineering and Beijing Key Laboratory of Space-Ground Interconnection and Convergence Beijing University of Posts and TelecommunicationsBeijing 100876China Key Laboratory of Semiconductor Materials Science Beijing Key Laboratory of Low Dimensional Semiconductor Materials and DevicesInstitute of SemiconductorsChinese Academy of SciencesBeijing 100083China

By combining the good charge transport property of graphene and the excellent photo-carrier generation char-acteristic of perovskite nanocrystal,we propose and demonstrate an ionic-gated synaptic transistor based on CsPbBr_(3)∕graphene heterojunction for bipolar *** the potential barrier of the CsPbBr_(3)∕graphene heterojunction by the ionic-gate of the electrical double-layer effect can promote the sepa-ration of photogenerated carriers and effectively retard their *** the ionic-gate-tunable Fermi level of graphene and the pinning effect of perovskite nanocrystal,the bipolar photocurrent responses correspond-ing to the excitatory and inhibitory short-term and long-term plasticity are realized by adjusting the negative gate bias.A series of synaptic functions including logic operation,Morse coding,the optical memory and electrical erasure effect,and light-assisted re-learning have also been demonstrated in an optoelectronic collaborative ***,the excellent optical synaptic behaviors also contribute to the handwritten font recognition accuracy of-95%in artificial neural network *** results pave the way for the fabrication of bipolar photoelectric synaptic transistors and bolster new directions in the development of future integrated human ret-inotopic vision neuromorphic systems.

关键词： perovskite ionic Morse

Clinical and Microbiological Characteristics of Patients with Complicated Intra-abdominal Infections in Intensive Care Unit

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Current Medical Science 2020年第1期40卷 104-109页

作者： Yang-mei XIONG xin rao Department of Intensive Care Unit Zhongnan Hospital of Wuhan UniversityWuhan 430071China

In order to investigate the clinical and microbiological characteristics of patients with complicated intra-abdominal infections(cIAIs)in intensive care unit(ICU),the clinical data of 612 cIAIs patients from January 2016 to December 2018 were retrospectively *** characteristics,distribution of pathogens and drug resistance were statistically *** was found that patients with community-acquired intra-abdominal infections(CA-IAIs)made up a majority of cIAIs *** positive rate of abdominal drainage fluid culture was 55.56%.Gramnegative bacteria accounted for the majority,the most commonly isolated bacteria of which were Escherichia coli(20.96%),Klebsiella pneumoniae(10.20%)and Pseudomonas aeruginosa(5.57%).The most commonly isolated gram-positive bacteria were Enterococcus(16.88%)and Methicillinresistant staphylococcus aureus(MRSA,3.90%).Enterobacter isolates showed high resistance rate to most cephalosporins and low resistance rate to piperacillin/tazobactam and *** spectrum beta-lactamase(ESBL)screen positive isolates from CA-IAIs patients showed an increasing trend in past three *** and MRSA showed high resistance rate to clindamycin,quinolone,erythromycin and tetracycline,while they showed high sensitivity rate to linezolid,tegacycline,teicoplanin and *** results indicate that isolated bacteria from abdominal drainage fluid show high resistance rates to commonly used antibiotics in ICU patients with *** curative effects on diseases should be monitored continuously when antibiotics are ***,we should always keep eyes on drug-resistant bacteria,especially when the treatment efficacy is not good.

关键词： complicated intra-abdominal infection pathogens extended spectrum beta-lactamase screen positive isolates resistance rate

Effectiveness of C-Reactive Protein as a Tuberculosis Screening Test Among HIV-Infected Individuals—Shanghai,China,2021-2023

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China CDC weekly 2024年第35期6卷 891-895页

作者： Lixin rao Zheyuan Wu Jing Chen Zhen Ning xin Shen Shanghai Municipal Center for Disease Control and Prevention ShanghaiChina

Summary What is already known about this topic?The World Health Organization(WHO)has recommended the inclusion of the C-reactive protein(CRP)test in active tuberculosis(ATB)screening algorithms among human immunodeficiency virus(HIV)-infected *** performance of the CRP test in African regions has been *** is added by this report?This study analyzed data from a big data platform of Shanghai medical records together with infectious disease surveillance systems.

关键词： Infect tuberculosis records

通过加权基因共表达网络分析鉴定与慢性肾脏病相关急性心肌梗死的潜在关键基因

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岭南心血管病杂志 2024年第3期30卷 256-263页

作者：桑珍珍饶欣郭杨刘媛媛仲爽高杰贾春梅李勇沧州市中心医院急诊科河北沧州061001 沧州市中心医院全科医疗科河北沧州061001 河北省沧州中西医结合医院感染科河北沧州061001

目的本研究旨在识别慢性肾脏病(chronic kidney disease,CKD)相关急性心肌梗死(acute myocardial infarction,AMI)的关键基因和信号通路。方法从基因表达综合数据库(Gene Expression Omnibus,GEO)下载基因芯片数据。采用加权基因共表达... 详细信息

目的本研究旨在识别慢性肾脏病(chronic kidney disease,CKD)相关急性心肌梗死(acute myocardial infarction,AMI)的关键基因和信号通路。方法从基因表达综合数据库(Gene Expression Omnibus,GEO)下载基因芯片数据。采用加权基因共表达网络分析(weighted gene co-expression network analysis,WGCNA)确定CKD和AMI的枢纽模块,并将两个模块交叉确定与CKD相关AMI的共同基因。采用R软件筛选出CKD和AMI的差异表达基因(differentially expressed gene,DEG),将二者取交集得到交叉基因。结合WGCNA和差异分析的结果,得到与CKD和AMI相关的候选基因。将两者的候选基因取交集得到CKD相关AMI的关键基因。对与CKD相关AMI的交叉基因进行基因本体论(gene ontology,GO)和京都基因和基因组百科全书(Kyoto Encyclopedia of Genes and Genomes,KEGG)富集分析。结果通过WGCNA获得了CKD相关枢纽模块和AMI相关枢纽模块。将两个模块交叉,共获得12个共同基因。通过将CKD和AMI差异表达基因DEG取交集得到41个交叉基因。结合WGCNA和差异分析的结果,得出与CKD和AMI相关的候选基因,通过将候选基因交叉,共筛选出4个关键基因(DUSP1、FOS、RGS2、S100P)。根据功能富集分析,交叉基因主要在免疫和炎症相关通路中增强。结论本研究基于WGCNA方法筛选出CKD相关AMI的4个关键基因,可能成为潜在的CKD相关AMI诊疗相关候选靶点。

关键词：心肌梗死关键基因慢性肾脏病

Dimethylamine oxalate manipulating CsPbI_(3) perovskite film crystallization process for high efficiency carbon electrode based perovskite solar cells

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Journal of Energy Chemistry 2024年第6期93卷 221-228,I0006页

作者： Wenran Wang xin Peng Jianxin Zhang Jiage Lin Rong Huang Guizhi Zhang Huishi Guo Zhenxiao Pan xinhua Zhong Huashang rao Key Laboratory for Biobased Materials and Energy of Ministry of Education College of Materials and EnergySouth China Agricultural UniversityGuangzhou 510642GuangdongChina College of Chemistry and Civil Engineering Shaoguan UniversityShaoguan 512005GuangdongChina Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region Shaoguan UniversityShaoguan 512005GuangdongChina

Crystallization process determines the quality of perovskite films and the performances of resultant perovskite solar cells(PSCs).Dimethylamine oxalate has been proven as a multifunctional modulator,and is explored as an efficient additive in manipulating the crystallization process of CsPbI_(3) perovskite *** one hand,oxalate serves as the precipitator that facilitates the nucleation process of *** larger size of intermediate is conductive to the larger size and smaller grain boundaries of resultant *** the other hand,in subsequent annealing process,the phase conversion and growth process of transient perovskite can be decelerated due to the strong interactions of oxalate with both dimethylamine cation(DMA^(+))and Pb^(2+).Due to the optimized crystallization kinetics,the morphology and quality of CsPbI_(3) perovskite films are comprehensively improved with lower defect concentrations,and charge recombination loss is effectively *** from the optimized crystal quality of perovskite films,the carbon electrode-based CsPbI_(3) PSCs exhibit a champion efficiency of 18.48%.This represents one of the highest levels among all hole transport layer-free inorganic perovskite solar cells.

关键词： Solar cells Perovskite CsPbI_(3) Carbon electrodes Oxalate

Fabricating AC/DC nanogenerators based on single ZnO nanowires by using a nanomanipulator in a scanning electron microscope

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Nanotechnology and Precision Engineering 2024年第2期7卷 25-31页

作者： Mei Liu Mengfan He Aristide Djoulde Lingdi Kong Weilin Su xin Bai Jinbo Chen Jinjun rao Zhiming Wang Shanghai Key Laboratory of Intelligent Manufacturing and Robotics School of Mechatronic Engineering and AutomationShanghai UniversityShanghai 200444China Guangdong Provincial Key Laboratory of Fuel Cell Technology School of Chemistry and Chemical EngineeringSouth China University of TechnologyGuangzhou 510641China

Single zinc oxide nanowires(ZnO NWs)are promising for nanogenerators because of their excellent semiconducting and piezoelectric properties,but characterizing the latter efficiently is *** reported here,an electrical breakdown strategy was used to construct single ZnO NWs with a specific *** the high operability of a nanomanipulator in a scanning electron microscope,ZnO-NW-based twoprobe and three-probe structures were constructed for fabricating AC/DC nanogenerators,*** a ZnO NW,an AC output of between−15.31 mV and 5.82 mV was achieved,while for a DC nanogenerator,an output of24.3 mV was ***,the three-probe structure’s output method was changed to verify the distribution of piezoelectric charges when a single ZnO NW is bent by a probe,and DC outputs of different amplitudes were *** study provides a low-cost,highly convenient,and operational method for studying the AC/DC output characteristics of single NWs,which is beneficial for the further development of nanogenerators.

关键词： Zinc oxide nanowire Piezoelectric properties Nanomanipulator SEM AC/DC nanogenerators

Multiscale control of MnO_(2) growth via[WO_(6)]-perturbed[MnO_(6)]assembly toward a favorable balance between capacitance and rate performance

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Rare Metals 2024年第4期43卷 1658-1671页

作者： Jin-Kang Liu Tian-Shuo Yang Zhi-Bin Ren Adekunle-Adedapo Obisanya xin-Yi Tan Yan-Di rao Jun-Shuang Zhou Fa-Ming Gao Jian-Ren Wang Hebei Key Laboratory of Applied Chemistry Yanshan UniversityQinhuangdao066004China

Although pseudocapacitive manganese dioxide(MnO_(2))integrates the high-power merit of carbonaceous materials with the high-energy merit of battery-type materials,it still has a long way to go in achieving a more satisfactory balance of higher energy and power density,and in decoupling the relationship of structural characteristics with energy storage *** realize such goals,a bottom-up[WO_(6)]-perturbed[MnO_(6)]assembly strategy has been developed here due to their similar structure,yet mismatched lattice *** facile protocol is capable of finely controlling the morphology and crystal structure of MnO_(2)by adjusting its internal[WO_(6)]***,the as-prepared W_xMnO_(2)is treated as an ideal platform to scrutinize the correlations of the structure with the energy storage *** operando Raman spectra and finite element analysis have fully demonstrated the superiority of the locally ordered defects-enriched structure of W_(0.02)-MnO_(2),which could reach a favorable balance between the ion diffusion equilibrium time and the number of active *** a result,the W_(0.02)-MnO_(2)is able to deliver a high capacitance of 292 F·g^(-1)at a current density of 1 A·g^(-1)and a remarkable rate performance with a 60%capacity retention at a current density of 50 A·g^(-1).The further unveiled structure-performance relationship provides a guideline for the design of better pseudocapacitive energy storage devices.

关键词： Supercapacitors Pseudocapacitive materials MnO_(2) Tungsten doping Crystal structure regulation

A National Multicenter Survey on Management of Pain, Agitation, and Delirium in Intensive Care Units in China

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Chinese Medical Journal 2017年第10期130卷 1182-1188页

作者： Jing Wang Zhi-Yong Peng Wen-Hal Zhou Bo Hu xin rao Jian-Guo Li Department of Intensive Care Unit Zhongnan Hospital of Wuhan University Wuhan Hubei 430071 China Department of Clinical Medicine City College Wuhan universLty of Science and TechnoLogy Wuhan Hubei 430083 China

Background： The management of pain, agitation, and deliriunl （PAD） in Intensive Care Unit （ICU） is beneficial for patients and makes it widely applied in clinical practice. Previous studies showed that the clinical practice of PAD in ICU was improving： yet relatively little intbrmation is available in China. This study aimed to investigate the practice of PAD in ICUs in China. Methods： A multicenter, nationwide survey was conducted using a clinician-directed questionnaire from September 19 to December 18, 2016. The questionnaire focused on the assessment and naanagement of PAD by the clinicians in ICUs. The practice of PAD was compared among the lbur regions of China （North, Southeast, Northwest, and Southwest）. The data were expressed as percentage and fi＇equency. The Chi-square test, Fisher＇s exact test, and line-row Chi-square test were used. Results： Of the 1011 valid questionnaire lbrms, the response rtite was 80.37%. The clinicians came from 704 hospitals across 158 cities of China. The rate of PAD assessment was 75.77%, 90.21%, and 66.77%, respectively. The rates of PAD scores were 45.8%, 68.94%, and 34.03%, respectively. The visual analog scale, Richmond agitation-sedation scale, and conlktsion assessment method lbr the ICU were the first choices of scales for PAl） assessment. Fentanyl, midazolam, and dexmedetomidine were the first choices of agents for analgesic, sedation, and delirium treatment. While choosing analgesics and sedatives, the clinicians put the pharmacological characteristics of drugs in the first place （66.07% and 76.36%）. Daily interruption for sedation was carried out by 67.26% clinicians. Most of the clinicians （87.24%） used analgesics while using sedatives. Of the 738 （73%） clinicians titrating the sedatives oil the basis of the proposed target sedation level, 268 （26.61%） clinicians just depended on their clinical experience. Totally, 519 （51.34%） clinicians never used other nondrug strategies tbr PAD. The working time of clinicians was

关键词： Agitation Delirium: Intensive Care Unit Pain Sedation

Prognostic prediction model of colorectal cancer based on preoperative serum tumor markers

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World Journal of Gastrointestinal Surgery 2024年第5期16卷 1344-1353页

作者： Yu-Hang Diao Si-Qi rao xin-Peng Shu Yong Cheng Can Tan Li-Juan Wang Dong Peng Department of Gastrointestinal Surgery The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China

BACKGROUND Preoperative serum tumor markers not only play a role in the auxiliary diagnosis and postoperative monitoring in colorectal cancer(CRC),but also have been found to have potential prognostic *** To analyze whether preoperative serum tumor markers,including carcinoembryonic antigen(CEA)and carbohydrate antigen 19-9(CA19-9),affect the prognosis of *** This was a retrospective study conducted in a single *** with nonmetastatic CRC who underwent initial surgery between January 2011 and January 2020 were enrolled and divided into development site and validation site groups at a ratio of 7:*** independent prognostic factors were screened by Cox regression analysis,and finally,a prognostic nomogram model was *** newly developed model was tested by internal *** Eventually,3526 postoperative patients with nonmetastatic CRC were included in the *** were 2473 patients at the development site and 1056 patients at the validation ***(P<0.01,HR=1.042,95%CI=1.033-1.051),tumor node metastasis(TNM)classification(P<0.01,HR=1.938,95%CI=1.665-2.255),preoperative CEA(P=0.001,HR=1.393,95%CI=1.137-1.707)and CA19-9(P<0.01,HR=1.948,95%CI=1.614-2.438)levels were considered independent prognostic factors for patients with nonmetastatic CRC and were used as variables in the nomogram *** areas under the curve of the development and validation sites were 0.655 and 0.658,*** calibration plot also showed the significant performance of the newly established *** We successfully constructed a nomogram model based on age,TNM stage,preoperative CEA,and CA19-9 levels to evaluate the overall survival of patients with nonmetastatic CRC.

关键词： Colorectal cancer Prognosis Carcinoembryonic antigen Carbohydrate antigen 19-9 Nomogram