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| 1 | Defect-mediated reactivity of Pt/TiO2 catalysts:the different role of titanium and oxygen vacancies显示文摘Defects are ubiquitous in oxide supports and can often tune the catalytic property of supported metal catalysts.This work describes the distinct role of titanium and oxygen vacancies of TiO2 supports in the catalytic performance of supported Pt catalysts for CO oxidation.Pt was loaded on the TiO2 supports with oxygen vacancies(VO-TiO2)and titanium vacancies(VTiTiO2).It was found that different defects of TiO2 could distinctively modify the electron property of Pt and thereby CO adsorption strength.The strength of CO adsorption on Pt/VTi-TiO2 is enhanced,while that of Pt/VO-TiO2 becomes weaker.Additionally,the presence of defects would also promote the reducibility of catalysts.On the account of the superior redox ability,both Pt/VTi-TiO2 and Pt/VO-TiO2 exhibit a higher activity than Pt supported on normal TiO2 for CO oxidation. | Quan Xiao Yanan Wang Zhi-Jian Zhao Chunlei Pei Sai Chen Lijun Gao Rentao Mu Qiang Fu Jinlong Gong | 2020 | Science China Chemistry2020，63，9： | 4 |
| 2 | Baicalein inhibits SARS-CoV-2/VSV replication with interfering mitochondrial oxidative phosphorylation in a mPTP dependent manner显示文摘Dear Editor,The ongoing outbreak of pneumonia(coronavirus disease 2019,COVID-19)caused by severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)has become a global health emergency.Scutellaria Baicalensis Georgi extract,a Traditional Chinese Medicine(TCM)widely used for treating infection of multiple different viruses,1 also shows beneficial effects when treating COVID-19.However,underline mechanism for broad antiviral activity of Scutellaria B.extract remains elusive,which limits its further application. | Shichao Huang Yu’e Liu Yanan Zhang Ru Zhang ChengJie Zhu Lihong Fan Gang Pei Bo Zhang Yufeng Shi | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 1 |
| 3 | Effects of Screen-grid Bias Voltage on the Micro Structure and Properties of the UHMWPE Modified by Oxygen Plasma 显示文摘 | Yanan Pei Dong Xie Yongxiang Leng | 2012 | Vacuum2012，86，12： | 1 |
| 4 | Was Wuhan the early epicenter of the COVID-19 pandemic?——a critique显示文摘Recently, Worobey et al.(2022) published a report entitled ‘The Huanan Seafood Wholesale Market in Wuhan was the early epicenter of the COVID-19 pandemic' that succinctly summarizes their study [1]. A pre-print version of this study had earlier elicited a series of highprofile media coverages [2,3]. All these reports deliver a social-political message that the Huanan market is the epicenter of COVID-19. | Yanan Cao Lingling Chen Hua Chen Yupeng Cun Xiaofeng Dai Hongli Du Feng Gao Fengbiao Guo Yalong Guo Pei Hao Shunmin He Shunping He XiongLei He Zheng Hu Boon-Peng Hoh Xin Jin Qian Jiang Qinghua Jiang Asifullah Khan Hong-Zhi Kong Jinchen Li Shuai Cheng Li Ying Li Qiang Lin Jianquan Liu Qi Liu Jian Lu Xuemei Lu Shujin Luo Qinghua Nie Zilong Qiu Tieliu Shi Xiaofeng Song Jianzhong Su Sheng-ce Tao Chaolong Wang Chuan-Chao Wang Guo-Dong Wang Jiguang Wang Qi Wu Shaoyuan Wu Shuhua Xu Yu Xue Wenjun Yang Zhaohui Yang Kai Ye Yuan-Nong Ye Li Yu Fangqing Zhao Yiqiang Zhao Weiwei Zhai Dandan Zhang Liye Zhang Houfeng Zheng Qi Zhou Tianqi Zhu Ya-ping Zhang | 2023 | National Science Review2023，10，4： | 0 |
| 5 | A Brief Analysis of the Applicability of the Archipelago Waters System in China显示文摘群岛的水系统在海的法律上在联合国习惯被订货。它是仔细与瓷器海洋的立法和海事法实施有关。它不仅与我们的国家公民君权的正直有关,而且到我们的海上的权利和兴趣的维护。然而,没有全面基本法律,在我们的国家管理海洋的开发的全面状况,另外群岛的水系统上的没有相关法律代码。因此,我们应该从群岛的水系统被写进瓷器海洋的立法的世界水兵立法和实践学习。 | QU Yanan PEI Zhaobin YE Xin | 2017 | Journal of Shipping and Ocean Engineering2017，7，5： | 0 |
| 6 | Different conformational responses of theβ_(2)-adrenergic receptor-Gs complex upon binding of the partial agonist salbutamol or the full agonist isoprenaline显示文摘G protein-coupled receptors(GPCRs)are responsible for most cytoplasmic signaling in response to extracellular ligands with different efficacy profiles.Various spectroscopic techniques have identified that agonists exhibiting varying efficacies can selectively stabilize a specific conformation of the receptor.However,the structural basis for activation of the GPCR-G protein complex by ligands with different efficacies is incompletely understood.To better understand the structural basis underlying the mechanisms by which ligands with varying efficacies differentially regulate the conformations of receptors and G proteins,we determined the structures ofβ_(2)AR-Gαsβγbound with partial agonist salbutamol or bound with full agonist isoprenaline using single-particle cryo-electron microscopy at resolutions of 3.26?A and3.80?A,respectively.Structural comparisons between theβ_(2)AR-Gs-salbutamol andβ_(2)AR-Gs-isoprenaline complexes demonstrated that the decreased binding affinity and efficacy of salbutamol compared with those of isoprenaline might be attributed to weakened hydrogen bonding interactions,attenuated hydrophobic interactions in the orthosteric binding pocket and different conformational changes in the rotamer toggle switch in TM6.Moreover,the observed stronger interactions between the intracellular loop 2 or 3(ICL2 or ICL3)ofβ_(2)AR and Gαswith binding of salbutamol versus isoprenaline might decrease phosphorylation in the salbutamol-activatedβ_(2)AR-Gs complex.From the observed structural differences between these complexes ofβ_(2)AR,a mechanism ofβ_(2)AR activation by partial and full agonists is proposed to provide structural insights intoβ_(2)AR desensitization. | Fan Yang Shenglong Ling Yingxin Zhou Yanan Zhang Pei Lv Sanling Liu Wei Fang Wenjing Sun Liaoyuan A.Hu Longhua Zhang Pan Shi Changlin Tian | 2021 | National Science Review2021，8，9： | 0 |
| 7 | High-throughput screening of phase-engineered atomically thin transition-metal dichalcogenides for van der Waals contacts at the Schottky–Mott limit显示文摘A main challenge for the development of two-dimensional devices based on atomically thin transition-metal dichalcogenides(TMDs)is the realization of metal–semiconductor junctions(MSJs)with low contact resistance and high charge transport capability.However,traditional metal–TMD junctions usually suffer from strong Fermi-level pinning(FLP)and chemical disorder at the interfaces,resulting in weak device performance and high energy consump-tion.By means of high-throughput first-principles calculations,we report an attractive solution via the formation of van der Waals(vdW)contacts between metallic and semiconducting TMDs.We apply a phase-engineering strategy to create a monolayer TMD database for achieving a wide range of work func-tions and band gaps,hence offering a large degree of freedom to construct TMD vdW MSJs with desired contact types.The Schottky barrier heights and contact types of 728 MSJs have been identified and they exhibit weak FLP(-0.62 to-0.90)as compared with the traditional metal–TMD junctions.We find that the interfacial interactions of the MSJs bring a delicate competition between the FLP strength and carrier tunneling efficiency,which can be uti-lized to screen high-performance MSJs.Based on a set of screening criteria,four potential TMD vdW MSJs(e.g.,NiTe_(2)/ZrSe_(2),NiTe_(2)/PdSe_(2),HfTe_(2)/PdTe_(2),TaSe_(2)/MoTe_(2))with Ohmic contact,weak FLP,and high carrier tunneling probability have been predicted.This work not only provides a fundamental understanding of contact properties of TMD vdW MSJs but also renders their huge potential for electronics and optoelectronics. | Yanyan Li Liqin Su Yanan Lu Qingyuan Luo Pei Liang Haibo Shu Xiaoshuang Chen | 2023 | InfoMat2023，5，7： | 0 |
| 8 | Ultrathin ternary PtNiGa nanowires for enhanced oxygen reduction reaction显示文摘Achieving high activity and durability for the oxygen reduction reaction(ORR)with an ultra-low amount of platinum is significant to promote the widespread application of proton exchange membrane fuel cells(PEMFCs).Here we report a new ultrathin(∼1 nm)ternary PtNiGa alloy nanowires(PtNiGa NWs)electrocatalyst,in which the presence of gallium(Ga)enhances the oxidation resistance of platinum(Pt)and nickel(Ni)and suppresses the dissolution of Ni.The mass and specific activities of PtNiGa NWs are about 11.2 and 7.6 times higher than those of commercial Pt/C catalysts for ORR.Moreover,the mass activity of PtNiGa/C NWs nanocatalyst decreased only by 12.8%and largely retained its electrochemical surface area(ECSA)after 10,000 potential cycles,compared with 38%loss of ECSA for commercial Pt/C catalyst.Therefore,this work provides a general guideline for preparing ternary alloy electrocatalysts and enhancing the activity and stability of the cathode ORR reaction of PEMFCs. | Giday Fisseha Yiping Hu Yanan Yu Shaojie Lu Dongsheng Ma Pei Nian Zheng Wang Qin Yue | 2024 | Chinese Chemical Letters2024，35，2： | 0 |
| 9 | A Case Report: High-Grade Urothelial Carcinoma in the Renal Pelvis with Complete Kidney and Ureter Duplication Featuring Heterologous Differentiation显示文摘This report describes a considerably rare case of high-grade urothelial carcinoma of the renal pelvis and ureter,presenting with heterologous differentiation,in a patient with bilateral duplicated kidneys.A 73-year-old male experienced intermittent gross hematuria for 5 months,accompanied by lower back and abdominal pain.Ultrasound and computed tomography scans revealed bilateral renal and ureteral duplication with multiple tumors in the left renal pelvis.A total nephroterectomy and bladder cuff resection were performed on the left two nephrons.Multiple space-occupying lesions were identified in the left renal pelvis and ureter.Histopathological examination showed poorly differentiated and diverse tumor cells,manifesting as sarcomatoid carcinoma,papillary adenocarcinoma,and infiltrating high-grade urothelial carcinoma.The tumor infiltrated the subcutaneous fibrous connective tissue of the renal pelvis and the full thickness of the ureter.Given the rarity of recurrent renal urothelial carcinoma with heterogeneous differentiation,comprehensive imaging and pathological assessments are vital to delineate the nature of the lesion and the direction of tissue pathological heterologous differentiation.These evaluations guide early radical surgical interventions,improving survival rates. | Pan Wang Lina Li Pei Zhang Yanan Wang | 2023 | Proceedings of Anticancer Research2023，7，5： | 0 |
| 10 | Analysis on the deployment of mining research supported by the grant program of Deep Resources Exploration and Mining显示文摘The Deep Resources Exploration and Mining(DREAM)grant program,within the framework of The National Key Research and Development Program grants,is a pillar to implement China’s science and technology strategy in the area of deep resources exploitation.To tackle the insufficient of theories and technologies for the 1000-meter-deep mining,a section of mining,covering the research of basic theories,general technologies and application demonstration,was arranged in the layout of DREAM under the principle of'whole chain design,integrated implementation'.In the aspect of basic research,DREAM mainly focused on the deep rock mechanics and mining theory,such as the in-situ mechanical behavior of deep rock,deep high stress induction and energy regulation theory.For the general and key technologies,DREAM supported the research on the mine construction and hoisting,excavation,rock breaking,mining methods and mining safety according to the characteristics of coal and metal mines.For the demonstration application,taking green,safe and efficient as the starting point,DREAM aimed at the green,safe and high efficiency mining,and the demonstration and leading role projects such as the low-waste and high-efficiency back fill mining.Since 2016,10 R&D projects have been funded,and 122 institutional participants with a total budget of RMB 235 million from the central government and RMB 480 million from enterprises as well as local governments have been involved.It is expected that the mining section of DREAM would contribute to establishing the theory and technology system in the area of deep mining and promoting the ability of deep resource exploitation in China. | FAN Jun ZHANG Jialin QIN Yuan WANG Hao GAO Yanan PEI Yongzhi | 2021 | 煤田地质与勘探2021，49，3： | 0 |
| 11 | Kinetically rate-determining step modulation by metal-support interactions for CO oxidation on Pt/CeO_(2)显示文摘Rational design and performance promotion are eternal topics and ultimate goals in catalyst preparation.In contrast,trial–and–error is still the common method people take.Therefore,it is important to develop methods to intrinsically enhance the performance of catalysts.The most effective solutions are the one from a kinetic perspective based on clear knowledge of the reaction mechanism.This paper describes rate-determining step cognition and modulation to promote CO oxidation on highly dispersed Pt on CeO_(2).The different degrees of metal–support interactions due to variation of hydroxyl density of support could alter the structure of active species and the ability of oxygen activation apparently,further shift the rate-determining step from oxygen activation to oxygen reverse spillover kinetically.The transformation of rate-determining step could enhance the intrinsic activity significantly,and decrease the T_(50) approximately 140℃.The findings of this research exemplify the universal and effective method of performance elevation by rate-determining step modulation,which is promising for application in different systems. | Yanan Wang Chunlei Pei Zhi-Jian Zhao Jinlong Gong | 2022 | Science China Chemistry2022，65，10： | 0 |
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