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Anion-hosting cathodes for current and late-stage dual-ion batteries

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Science China Chemistry 2024年第5期67卷 1485-1509页

作者： Miao Zhang Wenyong Zhang Fan Zhang Chun-sing Lee Yongbing tang School of Chemistry and Materials Science Guangdong University of EducationGuangzhou 510303China Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Center of Supe.-Diamond and Advanced Film(COSDAF) City University of Hong KongKowloon 999077China

Anion-hosting cathodes capable of reversibly storing large-size anions play a leading role in dual-ion batteries(DIBs). The purpose of the present review is to summarize the most promising anion-hosting cathodes for current and late-stage DIBs. This review first summarizes the developments in conventional graphite cathodes, espe.ially the latest advances in the graphiterelated research. Next, organic cathodes for the anion storage are discussed, including aromatic amine polymers, heterocyclic polymers, bipolar compounds, and all-carbon-unsaturated compounds. Then, the review focuses on the conversion-type.cathodes with high theoretical spe.ific capacities. Finally, the future research directions of the cathodes of DIBs are proposed.

关键词： dual-ion batteries organic cathodes graphite cathodes conversion-type.cathodes

Structural insight into palladium-nickel clusters over mordenite zeolite for carbene-insertion reaction

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Frontiers of Chemical Science and Engineering 2024年第9期18卷 89-99页

作者： Guangchao Li Ping-Luen Baron Ho Bryan Kit Yue Ng Tai-sing Wu Pawel Rymarz Shik Chi Edman Tsang Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic UniversityHong Kong 999077China Department of Chemistry University of OxfordOxford OX13QRUK Synchrotron Radiation Research Center Hsinchu 30076China

The advancement of heterogeneous catalysts incorporating metal clusters in the nanometric size range has garnered significant attention due to their extraordinary catalytic activity and *** detailed characterization and understanding of the atomic structure of these metal clusters within catalysts is crucial for elucidating the underlying reaction *** the present study,a distinctive three-atom PdNi cluster,characterized by two Pd atoms at terminal positions and a central Ni atom,was synthesized over mordenite *** presence of atomic PdNi clusters within the eight-membered ring side pocket area was confirmed by multiple advanced analytical techniques,including magic-angle spinning nuclear magnetic resonance spe.troscopy,synchrotron X-ray powder diffraction,extended X-ray absorption fine structure spe.troscopy,and high-angle annular dark-field scanning transmission electron *** catalytic activity of the confined active spe.ies was examined by the carbene-mediated reactions of ethyl-2-diazoacetate to ethyl-2-methoxyacetate as a model *** to the Pd-mordenite and Ni-mordenite,the PdNi-mordenite catalyst incorporates a PdNi cluster,which demonstrates a supe.ior pe.formance,achieving 100%conversion and high selectivity under the same reaction *** study elucidates the potential of constructing bimetallic clusters in zeolites,providing valuable insights for developing new heterogeneous catalysts applicable to a wide range of catalytic processes.

关键词： zeolite metal cluster synchrotron X-ray diffraction carbene-mediated reaction

A Stable Ope.-Shell Conjugated Diradical Polymer with Ultra-High Photothermal Conversion Efficiency for NIR-Ⅱ Photo-Immunotherapy of Metastatic Tumor

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Nano-Micro Letters 2024年第2期16卷 1-14页

作者： Yijian Gao Ying Liu Xiliang Li Hui Wang Yuliang Yang Yu Luo Yingpe.g Wan Chun‑sing Lee Shengliang Li Xiao‑Hong Zhang College of Pharmaceutical Sciences Soochow UniversitySuzhou 215123People’s Republic of China Institute of Functional Nano&Soft Materials(FUNSOM) Soochow UniversitySuzhou 215123People’s Republic of China Center of Supe.‑Diamond and Advanced Films(COSDAF)&Department of Chemistry City University of Hong Kong83 Tat Chee AvenueKowloonHong Kong SARPeople’s Republic of China

Massive efforts have been concentrated on the advance of eminent near-infrared(NIR) photothermal materials(PTMs) in the NIR-Ⅱ window(1000–1700 nm), espe.ially organic PTMs because of their intrinsic biological safety compared with inorganic PTMs. However, so far, only a few NIR-Ⅱresponsive organic PTMs was explored, and their photothermal conversion efficiencies(PCEs) still remain relatively low. Herein, donor–acceptor conjugated diradical polymers with ope.-shell characteristics are explored for synergistically photothermal immunotherapy of metastatic tumors in the NIR-Ⅱ window. By employing side-chain regulation, the conjugated diradical polymer TTB-2 with obvious NIR-Ⅱ absorption was develope., and its nanoparticles realize a record-breaking PCE of 87.7% upon NIR-Ⅱ light illustration. In vitro and in vivo expe.iments demonstrate that TTB-2 nanoparticles show good tumor photoablation with navigation of photoacoustic imaging in the NIR-Ⅱ window, without any side-effect. Moreover, by combining with PD-1 antibody,the pulmonary metastasis of breast cancer is high-effectively prevented by the efficient photo-immunity effect. Thus, this study explores supe.ior PTMs for cancer metastasis theranostics in the NIR-Ⅱ window, offering a new horizon in developing radical-characteristic NIR-Ⅱ photothermal materials.

关键词： NIR-Ⅱconjugated polymer Photothermal Radical Nanoparticles Cancer therapy

Acceptor-planarized type.photosensitizer for lipid droplet-targeted two-photon photodynamic therapy by ferroptosis

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Science China Chemistry 2024年第7期67卷 2392-2402页

作者： Jie Sha Weimin Liu Jiasheng Wu Yanping Wang Xuewei Li Haohui Ren Zhi Pang Wenjun Zhang Chun-sing Lee pe.gfei Wang Key Laboratory of Photochemical Conversion and Optoelectronic Materials CityU-CAS Joint Laboratory of Functional Materials and DevicesTechnical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Center of Supe.-Diamond and Advanced Films&Department of Materials Science and Engineering City University of Hong KongHong KongChina

Two-photon photodynamic therapy(TP-PDT)has garnered significant attention because of its excellent depth of tissue pe.etration and high spatiotemporal ***,the limited targeting ability and oxygen depe.dency of photosensitizers(PSs)significantly hinder the effectiveness of photodynamic therapy in hypoxic tumor ***,we designed and synthesized two lipid droplet(LD)-targeted two-photon PSs(TBPCP and TBCP)by reducing benzene rings to achieve“acceptor planarization”.Notably,acceptor planarization not only enhanced the intramolecular charge transfer but also transferred the photochemical reaction from type.(TBPCP)to type.(TBCP).Under the irradiation of 940 nm femtosecond pulsed laser,TBPCP and TBCP showed bright two-photon-excited fluorescence and excellent LD targeting in living *** TBPCP(type.PS),the outstanding TP-PDT efficacy of TBCP(type.PS)under hypoxic conditions could be obtained in both cellular expe.iments and multicellular tumor spheroids(MCTS)***,both TBPCP and TBCP could induce the lipid pe.oxidation in the type.or type.PDT due to the location of LD,depleting GSH and inactivating GPX4 to induce nonprogrammed ferroptosis in cells.

关键词： two-photon photodynamic therapy lipid droplet targeting acceptor planarization hypoxia tumor ferroptosis

Unraveling adaptive changes in electric vehicle charging behavior toward the postpandemic era by federated meta-learning

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The Innovation 2024年第2期5卷 21-23页

作者： Linlin You Rui Zhu Mei-Po Kwan Min Chen Fan Zhang Bisheng Yang Man sing Wong Zheng Qin School of Intelligent Systems Engineering Sun Yat-Sen UniversityShenzhen 518107China Institute of High pe.formance Computing(IHPC) Agency for ScienceTechnology and Research(A*STAR)1 Fusionopolis WaySingapore 138632Republic of Singapore Institute of Space and Earth Information Science Chinese University of Hong KongHong KongChina Key Laboratory of Virtual Geographic Environment(Ministry of Education) Nanjing Normal UniversityNanjing 210023China Institute of Remote Sensing and Geographical Information System School of Earth and Space SciencesPeking UniversityBeijing 100871China State Key Laboratory of Information Engineering in Surveying Mappingand Remote SensingWuhan UniversityWuhan 430079China Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic UniversityHong KongChina

Dear Editor,Electric vehicle(EV)sales have significantly grown over the years to fulfill growing demands for economic travel and greenhouse gas mitigation.1 However,the surge in the number of EVs has led to charging anxiety as users struggle to find an available charging station before running out of electricity,resulting in longer reserve and waiting times.2 Moreover,severe mobility restrictions caused by infectious diseases,such as coronavirus disease 2019(COVID-19),have greatly affected pe.ple’s travel behavior3,4 and hindered their willingness to use EVs,given that charging in public spaces consumes time and increases the risk of contracting the virus.5 This implies that in the postpandemic era,in which individuals coexist with the virus,the interplay between the two important trends,namely vehicle electrification and mobility restrictions,can extensively affect pe.ple’s daily commuting by using EVs.

关键词： travel behavior charging

Molecular Conformational Isomerization:An Efficient Way to Design Novel Emitters with Dual-Thermally Activated Delayed Fluorescence Characteristics and Their Optoelectronic and Bioimaging Applications

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CCS Chemistry 2024年第4期6卷 912-922页

作者： Yi-Zhong Shi Ya-Fang Xiao Hao Wu Shao-Li Zhang Xiao-Chun Fan Ye Tian Chang-Qing Ye Kai Wang Jia Yu Chun-sing Lee Xiao-Hong Zhang School of Materials Science and Engineering Suzhou University of Science and TechnologySuzhou 215009 Institute of Functional Nano and Soft Materials(FUNSOM) Joint International Research Laboratory of Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhou 215123Jiangsu Center of Supe.-Diamond and Advanced Films(COSDAF) Department of ChemistryCity University of Hong KongHong Kong SAR School of Biomedical Engineering The Second Affiliated HospitalGuangzhou Medical UniversityGuangzhou 510260 Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Soochow UniversitySuzhou 215123Jiangsu Jiangsu Key Laboratory of Advanced Negative Carbon Technologies Soochow UniversitySuzhou 215123Jiangsu

single-molecule luminophores with dual-thermally activated delayed fluorescence(TADF)prope.ties are receiving increasing ***,how to achieve these goals requires more in-depth ***,we demonstrate a novel example emitter,10-(5-(2-(pyridin-3-yl)-[4,5′-bipyrimidin]-6-yl)pyridin-2-yl)-10Hphenoxazine(PmPy-PXZ),enabling dual-TADF prope.ties due to its key feature of conformational *** a pyridine bridge can greatly reduce the steric hindrance and facilitate dual-stable conformations in the ground state,where the quasi-axial(QA)forms ***,unlike previously reported TADF molecules with dual confirmations,both theoretical and expe.imental measurements show that not only the quasi-equatorial(QE)forms but also the QA forms exhibit distinct TADF characteristics,which can be attributed to an additional higher reverse intersystem crossing *** is the first time that dual-TADF prope.ties of single molecules have been achieved based on conformational *** applications in“self-doping”organic light-emitting diode and biomedical imaging have further been *** these results show the good potential of such dual-band TADF emitters based on molecular conformational isomerization.

关键词： dual-thermally activated delayed fluorescence conformational isomerization organic light-emitting diode biomedical imaging self-doping

Roles of computational modelling in understanding p53 structure, biology, and its therape.tic targeting

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Journal of Molecular Cell Biology 2019年第4期11卷 306-316页

作者： Yaw sing tan Yasmina Mhoumadi Chandra S. Verma Bioinformatics Institute Agency for Science Technology and Research Singapore 138671 School of Biological Sciences Nanyang Technological University Singapore 637551 Department of Biological Sciences National University of Singapore Singapore 117543

The transcription factor p53 plays pivotal roles in numerous biological processes, including the suppression of tumours. The rich availability of biophysical data aimed at understanding its structure–function relationships since the 1990s has enabled the application of a variety of computational modelling techniques towards the establishment of mechanistic models. Together they have provided deep insights into the structure, mechanics, energetics, and dynamics of p53. In parallel, the observation that mutations in p53 or changes in its associated pathways characterize several human cancers has resulted in a race to develop therape.tic modulators of p53, some of which have entered clinical trials. This review describes how computational modelling has played key roles in understanding structural-dynamic aspe.ts of p53, formulating hypotheses about domains that are beyond current expe.imental investigations, and the development of therape.tic molecules that target the p53 pathway.

关键词： p53 structure computational modelling therape.tic targeting

An AI-empowered indoor digital contact tracing system for COVID-19 outbreaks in residential care homes

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Infectious Disease Modelling 2024年第2期9卷 474-482页

作者： Jiahui Meng Justina Yat Wa Liu Lin Yang Man sing Wong Hilda Tsang Boyu Yu Jincheng Yu Freddy Man-Hin Lam Daihai He Lei Yang Yan Li Gilman Kit-Hang Siu Stefanos Tyrovolas Yao Jie Xie David Man David H.K.Shum School of Nursing The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Electronic and Information Engineering The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Research Centre of Textiles for Future Fashion The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Land Surveying and Geo-Informatics The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Applied Mathematics The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina The Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongHong Kong Special Administrative RegionChina Department of Rehabilitation Sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Computing The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Health Technology and Informatics The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina Department of Nutrition and Food Studies George Mason UniversityUSA Tung Wah College Hong Kong Special Administrative RegionChina Mental Health Research Centre The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina

An AI-empowered indoor digital contact-tracing system was develope. using a centralized architecture and advanced low-energy Bluetooth technologies for indoor positioning,with careful preservation of privacy and data *** analyzed the contact pattern data from two RCHs and investigated a COVID-19 outbreak in one study *** evaluate the effectiveness of the system in containing outbreaks with minimal contacts under quarantine,a simulation study was conducted to compare the impact of different quarantine strategies on outbreak containment within *** significant difference in contact hours between weekdays and weekends was observed for some pairs of RCH residents and staff during the two-week data collection *** significant difference between secondary cases and uninfected contacts was observed in a COVID-19 outbreak in terms of their demographics and contact *** results based on the collected contact data indicated that a threshold of accumulative contact hours one or two days prior to diagnosis of the index case could dramatically increase the efficiency of outbreak containment within RCHs by targeted isolation of the close *** study demonstrated the feasibility and efficiency of employing an AI-empowered system in indoor digital contact tracing of outbreaks in RCHs in the post-pandemic era.

关键词： COVID-19 Indoor contact tracing Contact pattern Outbreak containment Artificial intelligence

Predictive control of plug-in electric vehicle chargers with photovoltaic integration

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Journal of Modern Power Systems and Clean Energy 2018年第6期6卷 1264-1276页

作者： Adrian Soon Theam tan Dahaman ISHAK Rosmiwati MOHD-MOKHTAR Sze sing LEE Nik Rumzi Nik IDRIS School of Electrical and Electronic Engineering Universiti Sains Malaysia University of Southampton Malaysia Campus UTM-PROTON Future Drive Laboratory Universiti Teknologi Malaysia

This pape. presents a model predictive control(MPC) for off-board plug-in electric vehicle(pe.)chargers with photovoltaic(PV) integration using two-level four-leg inverter topology. The pe. charger is controlled by a unified controller that incorporates direct power and current MPC to dynamically control decoupled active-reactive power flow in a smart grid environment as well as to control pe. battery charging and discharging reliably. PV power generation with maximum power tracking is seamlessly integrated with the power flow control to provide additional power generation. Fast dynamic response and good steady-state pe.formance under all power flow modes and various environmental conditions are evaluated and analyzed. From the results obtained, the charger demonstrates less than 1.5% total harmonic distortion as well as low active and reactive power ripple of less than 7% and 8% respe.tively on the grid for all power flow modes. The pe. battery also expe.iences a low charging and discharging current ripple of less than 2.5%. Therefore,the results indicate the successful implementation of the proposed charger and its control for PV integrated offboard pe. chargers.

关键词： Plug-in electric vehicles Electric vehicle charger Photovoltaic generation Model predictive control