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| 1 | A review on 2D MoS_(2) cocatalysts in photocatalytic H_(2) production显示文摘Owing to their unique physicochemical,optical and electrical properties,two-dimensional(2D)MoS_(2) cocatalysts have been widely applied in designing and developing highly efficient composite photocatalysts for hydrogen generation under suitable light irradiation.In this review,we first elaborated on the fundamental aspects of 2D MoS_(2) cocatalysts to include the structural design principles,synthesis strategies,strengths and challenges.Subsequently,we thoroughly highlighted and discussed the modification strategies of 2D MoS_(2) H2-evolution cocatalysts,including doping heteroatoms(e.g.metals,non-metals,and co-doping),designing interfacial coupling morphologies,controlling the physical properties(e.g.thickness,size,structural defects or pores),exposing the reactive facets or edge sites,constructing cocatalyst heterojunctions,engineering the interfacial bonds and confinement effects.In the future,the forefront challenges in understanding and in precise controlling of the active sites at molecular level or atomic level should be carefully studied,while various potential mechanisms of photogenerated-electrons interactions should be proposed.The applications of MoS_(2) cocatalyst in the overall water splitting are also expected.This review may offer new inspiration for designing and constructing novel and efficient MoS_(2)-based composite photocatalysts for highly efficient photocatalytic hydrogen evolution. | Zizhan Liang Rongchen Shen Yun Hau Ng Peng Zhang Quanjun Xiang Xin Li | 2020 | Journal of Materials Science & Technology2020，56，21： | 12 |
| 2 | Martensite transformation, mechanical properties and shape memory effects of Ni-Mn-In-Mg shape memory alloys显示文摘The martensite transformation(MT), mechanical properties and shape memory effect(SME) of(Ni_(50)Mn_(35)In_(15))_((1-x))Mg_x(x = 0%, 0.08%, 0.3%, 0.6% at%) alloys were comprehensively investigated. The results showed that due to Mg doping the MT temperature shifted to higher temperatures and a worm-like secondphase precipitated at grain boundaries and inside the grains. With increasing Mg content, the amount of precipitates gradually increased, the thermal hysteresis was almost invariant, and the SME was not obviously affected at 3% pre-strain, even when the volume of the second phase reached up to 28.75%. Compressive stress and strain experiments showed that both the strain and strength of the Ni-Mn-In-Mg alloys were improved substantially(by 46.9% and 53.4%, respectively, at x = 0.6%) compared with those of the pure Ni_(50)Mn_(35)In_(15) alloy; this effect is nearly the same as that achieved by the directional solidification method. Because Mg is nonmagnetic, the magnetization difference of the alloy with Mg doping is much lower than that of the alloy without Mg doping. Overall, the results confirm that adding a small amount of Mg is a potentially viable method for improving the mechanical properties of Ni-Mn-In alloys without adversely damaging their functional properties. | Zhenni Zhou Liang Yang Rongchen Li Jun Li Qiaodan Hu Jianguo Li | 2018 | Progress in Natural Science:Materials International2018，28，1： | 3 |
| 3 | The Agpat4/LPA axis in colorectal cancer cells regulates antitumor responses via p38/p65 signaling in macrophages显示文摘Lipid metabolic reprogramming plays an essential role in regulating the progression of colorectal cancer(CRC).However,the effect of lysophosphatidic acid(LPA)metabolism on CRC development is incompletely characterized.Here,we compared the mRNA levels of human CRC tissues to those of paracarcinoma tissues and focused on the notably enriched LPA metabolic pathways.We identified and verified that 1-acylglycerol-3-phosphate O-acyltransferase 4(Agpat4)was aberrantly expressed in CRC tissues and predicted poor survival in CRC patients.Manipulating Agpat4 expression in CRC cells did not affect the growth or migration of CRC cells in vitro,whereas Agpat4 silencing suppressed CRC cell growth in subcutaneous and peritoneal xenograft models.Mechanistically,Agpat4 silencing-induced LPA release from CRC cells and polarized macrophages to an M1-like phenotype through LPA receptors 1 and 3.This M1 activation,characterized by elevated p38/p65 signaling and increased proinflammatory cytokines,promoted the infiltration and activation of CD4+and CD8+T cells in the tumor microenvironment.Modulation of the Agpat4/LPA/p38/p65 axis regulated macrophage polarization,T-cell activity and CRC progression.Notably,combined therapy with LPA and regular chemotherapy drugs synergistically suppressed CRC development.Taken together,our results showed that the Agpat4/LPA axis in CRC cells regulated p38/p65 signaling-dependent macrophage polarization,T-cell activation,and CRC progression.The Agpat4/LPA/p38/p65 axis might represent a potential target for therapy in the clinic. | Dapeng Zhang Rongchen Shi Wei Xiang Xia Kang Bo Tang Chuan Li Linfeng Gao Xuan Zhang Lili Zhang Rongyang Dai Hongming Miao | 2020 | Signal Transduction and Targeted Therapy2020，5，1： | 3 |
| 4 | Comparative visual analytics for assessing medical records with sequence embedding显示文摘Machine learning for data-driven diagnosis has been actively studied in medicine to provide better healthcare.Supporting analysis of a patient cohort similar to a patient under treatment is a key task for clinicians to make decisions with high confidence.However,such analysis is not straightforward due to the characteristics of medical records:high dimensionality,irregularity in time,and sparsity.To address this challenge,we introduce a method for similarity calculation of medical records.Our method employs event and sequence embeddings.While we use an autoencoder for the event embedding,we apply its variant with the self-attention mechanism for the sequence embedding.Moreover,in order to better handle the irregularity of data,we enhance the self-attention mechanism with consideration of different time intervals.We have developed a visual analytics system to support comparative studies of patient records.To make a comparison of sequences with different lengths easier,our system incorporates a sequence alignment method.Through its interactive interface,the user can quickly identify patients of interest and conveniently review both the temporal and multivariate aspects of the patient records.We demonstrate the effectiveness of our design and system with case studies using a real-world dataset from the neonatal intensive care unit of UC Davis. | Rongchen Guo Takanori Fujiwara Yiran Li Kelly M.Lima Soman Sen Nam K.Tran Kwan-Liu Ma | 2020 | Visual Informatics2020，4，2： | 1 |
| 5 | Cross-heterogeneous Domain Authentication Scheme Based on Blockchain显示文摘With the rising popularity of the Internet and the development of big data technology,an increasing number of organizations are opting to cooperate across domains to maximize their benefits.Most organizations use public key infrastructure to ensure security in accessing their data and applications.However,with the continuous development of identity-based encryption(IBE)technology,small-and medium-sized enterprises are increasingly using IBE to deploy internal authentication systems.To solve the problems that arise when crossing heterogeneous authentication domains and to guarantee the security of the certification process,we propose using blockchain technology to establish a reliable cross-domain authentication scheme.Using the distributed and tamper-resistant characteristics of the blockchain,we design a cross-domain authentication model based on blockchain to guarantee the security of the heterogeneous authentication process and present a cross-domain authentication protocol based on blockchain.This model does not change the internal trust structure of each authentication domain and is highly scalable.Furthermore,on the premise of ensuring security,the process of verifying the signature of the root certificate in the traditional cross-domain authentication protocol is improved to verify the hash value of the root certificate,thereby improving the authentication efficiency.The developed prototype exhibits generality and simplicity compared to previous methods. | Jing Liu Yixin Liu Yingxu Lai Rongchen Li Siyu Wu Sami Mian | 2021 | Journal of Artificial Intelligence and Technology2021，1，2： | 1 |
| 6 | 2D/2D covalent organic framework/CdS Z-scheme heterojunction for enhanced photocatalytic H_(2) evolution:Insights into interfacial charge transfer mechanism显示文摘Covalent organic frameworks(COFs)with high crystallinity and flexible designability have been consid-ered as promising candidates for photocatalytic hydrogen evolution.However,the existence of unpropi-tious exciton effects in COFs leads to poor charge separation,and thus results in low photocatalytic effi-ciency.Herein,to improve the photoelectron migration efficiency,we designed a 2D/2D organic/inorganic direct Z-scheme COF-based heterojunction(TpTAP/CdS),by the in-situ growing of CdS nanosheets on the COF copolymerized via 2,4,6-tris(4-aminophenyl)-1,3,5-triazine(TAP)and 1,3,5-triformylphloroglucinol(Tp).The femtosecond transient absorption(fs-TA)decay kinetics of TpTAP-COF and TpTAP/CdS further reveal the processes of shallow electron trapping and the recombination of the free photogenerated electron-hole pairs.In particular,the transient absorption traces for TpTAP-COF and TpTAP/CdS normal-ized to the photoinduced absorption peak can effectively verify the Z-scheme charge transfer between TpTAP-COF and CdS,which could enhance the charge mobility and separation,thus reducing the pho-tocorrosion of CdS.Additionally,ultraviolet photoelectron spectroscopy(UPS),in-situ X-ray photoelec-tron spectroscopy(XPS),transient photovoltage measurements,and electron spin resonance(ESR)spec-troscopy further confirm the establishment of the internal electric field(IEF).This work demonstrates the important role of COFs in the construction of 2D/2D organic/inorganic direct Z-scheme heterojunctions and offers a new avenue to explain the criticality of dynamics of the photogenerated carriers for the construction of Z-scheme heterojunctions. | Ruiqi Gao Junxian Bai Rongchen Shen Lei Hao Can Huang Lei Wang Guijie Liang Peng Zhang Xin Li | 2023 | Journal of Materials Science & Technology2023，，6： | 1 |
| 7 | Enhancing bioactivity and stability of polymer-based materialtissue interface through coupling multiscale interfacial interactions with atomic-thin TiO2 nanosheets显示文摘Stable and bioactive material-tissue interface(MTF)basically determines the clinical applications of biomaterials in wound healing,sustained drug release,and tissue engineering.Although many inorganic nanomaterials have been widely explored to enhance the stability and bioactivity of polymer-based biomaterials,most are still restricted by their stability and biocompatibility.Here we demonstrate the enhanced bioactivity and stability of polymer-matrix bio-composite through coupling multiscale material-tissue interfacial interactions with atomically thin TiO_(2)nanosheets.Resin modified with TiO_(2)nanosheets displays improved mechanical properties,hydrophilicity,and stability.Also,we confirm that this resin can effectively stimulate the adhesion,proliferation,and differentiation into osteogenic and odontogenic lineages of human dental pulp stem cells using in vitro cell-resin interface model.TiO_(2)nanosheets can also enhance the interaction between demineralized dentinal collagen and resin.Our results suggest an approach to effectively up-regulate the stability and bioactivity of MTFs by designing biocompatible materials at the sub-nanoscale. | Rongchen Xu Xiaodan Mu Zunhan Hu Chongzhi Jia Zhenyu Yang Zhongliang Yang Yiping Fan Xiaoyu Wang Yuefeng Wu Xiaotong Lu Jihua Chen Guolei Xiang Hongbo Li | 2023 | Nano Research2023，16，4： | 0 |
| 8 | Regulating interfacial morphology and charge-carrier utilization of Ti_(3)C_(2)modified all-sulfide CdS/ZnIn_(2)S_(4)S-scheme heterojunctions for effective photocatalytic H_(2) evolution显示文摘The separation efficiency of electrons and holes and the enhancement of the surface reductive reaction in the metal sulfide semiconductor photocatalysts are important factors in boosting photocatalytic H_(2)evolution from water.The control of both interface morphology and the charge-carrier utilization of metal sulfide-based photocatalysts can effectively improve the separation efficiency of electrons and holes and increase the surface reaction active sites,which are considered to be effective methods to improve the photocatalytic activity of semiconductors.Here,the Ti_(3)C_(2)(Mxene)modified all-sulfide 2D/2D Sscheme heterojunction Ti_(3)C_(2)/Zn In_(2)S_(4)(ZIS)/CdS composite material was firstly synthesized by a two-step solvothermal method.The formation of all-sulfide S-scheme heterojunction improves the efficiency of electron-hole separation.The intimate 2D/2D van der Waals structure provides a strong interaction force and a large contact area to enhance charge transfer.The addition of 2D Ti_(3)C_(2)forms the accumulation layer,reducing the recombination of electrons and holes.Under the synergistic promotion,the highest hydrogen production of the prepared Ti_(3)C_(2)/ZIS/CdS composite photocatalyst could reach 8.93 mmol/h/g.This work not only enriches the photocatalytic systems through integrating the ohmic junction and the 2D/2D all-sulfide S-scheme heterojunction,but also provides a satisfactory design strategy for engineering interfacial morphology and charge-carrier utilization. | Junxian Bai Weilin Chen Rongchen Shen Zhimin Jiang Peng Zhang Wei Liu Xin Li | 2022 | Journal of Materials Science & Technology2022，，17： | 0 |
| 9 | Study of Aldo-keto Reductase 1C3 Inhibitor with Novel Framework for Treating Leukaemia Based on Virtual Screening and In vitro Biological Activity Testing显示文摘Aldo-keto reductase 1C3(AKR1C3)is a potential target for the treatment of acute myeloid leukaemia and T-cell acute lymphoblastic leukaemia.In this study,pharmacophore models,molecular docking and virtual screening of target prediction were used to find a potential AKR1C3 inhibitor.Firstly,eight bacteriocin derivatives(Z1-Z8)were selected as training sets to construct 20 pharmacophore models.The best pharmacophore model MODEL_016 was obtained by Decoy test(the enrichment degree was 21.5117,and the fitting optimisation degree was 0.9668).Secondly,MODEL_016 was used for the virtual screening of ZINC database.Thirdly,the hit 83256 molecules were docked into the AKR1C3 protein.Compared to the total scores and interactions between compounds and protein,16532 candidate compounds with higher docking scores and interactions with important residues PHE306 and TRP227 were screened.Lastly,eight compounds(A1-A8)that had good absorption,distribution,metabolism,excretion and toxicity(ADMET)properties were obtained by target prediction.Compounds A3 and A7 with high total score and good target prediction results were selected for in vitro biological activity test,whose IC_(50) values were 268.3 and 88.94µmol/L,respectively.The results provide an important foundation for the discovery of novel AKR1C3 inhibitors.The research methods used in this study can also provide important references for the research and development of new drugs. | LIU Fei LI Ren YE Jing REN Yujie TANG Zhipeng LI Rongchen ZHANG Cuihua LI Qunlin | 2021 | Chemical Research in Chinese Universities2021，37，3： | 0 |
| 10 | Pyrene-benzothiadiazole-based Polymer/CdS 2D/2D Organic/Inorganic Hybrid S-scheme Heterojunction for Efficient Photocatalytic H_(2) Evolution显示文摘Nowadays,conjugated polymers have garnered numerous attention as a new class of organic photocatalysts due to their tunable electronic properties,low cost,excellent stability and sufficient light-absorption performance.In particular,pyrene-benzothiadiazole-based conjugated polymer(PBBP)has been considered to be a new type of conjugated polymers for photocatalytic H_(2)evolution.However,the poor charge separation seriously limits its practical application in H_(2)evolution.In this work,a PBBP-based polymer/CdS 2D/2D organic/inorganic S-scheme heterojunction photocatalyst with a strong internal electric field is,for the first time,prepared for efficient photo-catalytic hydrogen evolution.The pyrene-benzothiadiazole-based conjugated polymers(PBBP)are synthesized by the Suzuki-Miyaura reactions.Then,the hybrid heterojunction photocatalysts are fabricated by coupling CdS with it through the ultrasonic mixing method.As a result,the highest H_(2)-production rate of 15.83 mmolh^(-1)g^(-1)is achieved on 20%PBBP/CdS composite under visible-light irradiation,nearly 2.7 times higher than that of pure CdS.The apparent quantum efficiency(AQE)of 20%PBBP/CdS composite could reach 8.66%atλ=420 nm.The enhanced activity could be attributed to the construction of S-scheme heterojunction,which accelerates the recombination of carriers with weaker redox ability and maintains the strong reducibility of electrons in CdS.This work provides a protocol for pyrene-benzothiadiazole-based conjugated polymers to prepare S-scheme heterojunction photocatalysts based on organic/inorganic coupling. | Ruiqi Gao Huan He Junxian Bai Lei Hao Rongchen Shen Peng Zhang Youji Li Xin Li | 2022 | Chinese Journal of Structural Chemistry2022，41，6： | 0 |
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