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| 1 | Injectable conductive gelatin methacrylate/oxidized dextran hydrogel encapsulating umbilical cord mesenchymal stem cells for myocardial infarction treatment显示文摘Umbilical cord mesenchymal stem cells(UCMSCs)transplantation has been proposed as a promising treatment modality for myocardial infarction(MI),but the low retention rate remains a considerable challenge.Injectable natural polymer hydrogels with conductivity ability are highly desirable as cell delivery vehicles to repair infarct myocardium and restore the cardiac function.In this work,we developed a hydrogel system based on gelatin methacrylate(GelMA)and oxidized dextran(ODEX)as cell delivery vehicles for MI.And dopamine could be used as a reductant of graphene oxide(GO)to form reductive GO(rGO).By adjusting the amount of rGO,the conductivity of hydrogels with 0.5 mg/mL rGO concentration(≈10^(-4)S/cm)was similar to that of natural heart tissue.In vitro cell experiments showed that the prepared hydrogels had excellent biocompatibility and cell delivery ability of UCMSCs.More importantly,GelMA-O5/rGO hydrogel could promote UCMSCs growth and proliferation,improve the myocardial differentiation ability of UCMSCs,and up-regulate the expression of cTnI and Cx43.Further in vivo experiments demonstrated that GelMA-O5/rGO/UCMSCs Hydrogel could significantly improve the ejection fraction(EF)of rats and significantly reduce myocardial infarct area compared to PBS group,promote the survival of UCMSCs,enhance the expression level of cTnI and Cx43,and decrease the expression level of caspase-3.The findings of this study suggested that the injectable conductive GelMA-O5/rGO hydrogel encapsulating UCMSCs could improve damaged myocardial tissue and reconstruct myocardial function,which will be a promising therapeutic strategy for cardiac repair. | Shuoji Zhu Changjiang Yu Nanbo Liu Mingyi Zhao Zerui Chen Jian Liu Ge Li Huanlei Huang Huiming Guo Tucheng Sun Jimei Chen Jian Zhuang Ping Zhu | 2022 | Bioactive Materials2022，7，7： | 4 |
| 2 | New insight into the stability and dynamics of fluid-conveying supported pipes with small geometric imperfections显示文摘In several previous studies,it was reported that a supported pipe with small geometric imperfections would lose stability when the internal flow velocity became sufficiently high.Recently,however,it has become clear that this conclusion may be at best incomplete.A reevaluation of the problem is undertaken here by essentially considering the flow-induced static deformation of a pipe.With the aid of the absolute nodal coordinate formulation(ANCF)and the extended Lagrange equations for dynamical systems containing non-material volumes,the nonlinear governing equations of a pipe with three different geometric imperfections are introduced and formulated.Based on extensive numerical calculations,the static equilibrium configuration,the stability,and the nonlinear dynamics of the considered pipe system are determined and analyzed.The results show that for a supported pipe with the geometric imperfection of a half sinusoidal wave,the dynamical system could not lose stability even if the flow velocity reaches an extremely high value of 40.However,for a supported pipe with the geometric imperfection of one or one and a half sinusoidal waves,the first-mode buckling instability would take place at high flow velocity.Moreover,based on a further parametric analysis,the effects of the amplitude of the geometric imperfection and the aspect ratio of the pipe on the static deformation,the critical flow velocity for buckling instability,and the nonlinear responses of the supported pipes with geometric imperfections are analyzed. | Kun ZHOU Qiao NI Wei CHEN Huliang DAI Zerui PENG Lin WANG | 2021 | Applied Mathematics and Mechanics(English Edition)2021，42，5： | 3 |
| 3 | Solvent sieving separators implement dual electrolyte for highvoltage lithium-metal batteries显示文摘Lithium-metal batteries(LMBs)based on high-voltage cathodes would deliver high specific energy density to meet the demand of future energy storage.However,developing liquid electrolytes with wide electrochemical window for high-energy LMBs is intrinsically challenging.Herein,we demonstrate metal-organic framework-functionalized separators(PE@MOF)with solvent sieving capability that implement dual electrolyte for LMBs.The capability of PE@MOF separator to block the diffusion of liquid electrolytes has been investigated.The PE@MOF separator notably suppresses solvents shuttling,enabling the independent optimization of cathode-electrolyte and anode-electrolyte interfaces.By adapting commercial carbonate and ether electrolytes on cathode and anode sides,respectively,robust cathode-electrolyte interphase(CEI)and solid electrolyte interface(SEI)have been built on both electrodes.The lifespan of LiCoO_(2)(LCO)|Li full cell has been notably extended when using dual electrolyte and the solvent-sieving PE@MOF separator.This work demonstrates a new strategy to separately optimize the local environments at electrodes and to develop high-energy LMBs using low-cost and commercially available electrolytes. | Yan Liu Qianqian Liu Youran Hong Yifei Xu Zerui Chen Wei Zhao Zhikun Hu Jiangwei Wang Hao Bin Wu | 2023 | Nano Research2023，16，4： | 0 |
| 4 | Janus Quasi‑Solid Electrolyte Membranes with Asymmetric Porous Structure for High‑Performance Lithium‑Metal Batteries显示文摘Quasi-solid electrolytes(QSEs)based on nanoporous materials are promising candidates to construct high-performance Limetal batteries(LMBs).However,simultaneously boosting the ionic conductivity(σ)and lithium-ion transference number(t^(+))of liquid electrolyte confined in porous matrix remains challenging.Herein,we report a novel Janus MOFLi/MSLi QSEs with asymmetric porous structure to inherit the benefits of both mesoporous and microporous hosts.This Janus QSE composed of mesoporous silica and microporous MOF exhibits a neat Li^(+)conductivity of 1.5.10^(–4)S cm^(−1)with t^(+)of 0.71.A partially de-solvated structure and preference distribution of Li^(+)near the Lewis base O atoms were depicted by MD simulations.Meanwhile,the nanoporous structure enabled efficient ion flux regulation,promoting the homogenous deposition of Li^(+).When incorporated in Li||Cu cells,the MOFLi/MSLi QSEs demonstrated a high Coulombic efficiency of 98.1%,surpassing that of liquid electrolytes(96.3%).Additionally,NCM 622||Li batteries equipped with MOFLi/MSLi QSEs exhibited promising rate performance and could operate stably for over 200 cycles at 1 C.These results highlight the potential of Janus MOFLi/MSLi QSEs as promising candidates for next-generation LMBs. | Zerui Chen Wei Zhao Qian Liu Yifei Xu Qinghe Wang Jinmin Lin Hao Bin Wu | 2024 | Nano-Micro Letters2024，16，6： | 0 |
| 5 | An incentive-compatible rational secret sharing scheme using blockchain and smart contract显示文摘In the rational cryptographic protocol,the two rational players often fall into the prisoner's dilemma,which is also the case for the rational secret sharing we consider in this paper.First,it is proved that rational secret sharing has a sequential equilibrium in the natural state,so that rational participants will fall into the prisoner's dilemma,resulting in no participants being able to reconstruct the secret correctly.Next,to solve this problem,we propose an incentive-compatible rational secret scheme.Specifically,the game tree with imperfect information is constructed to facilitate our analysis and proof,and the strictly dominated strategies are directly eliminated to simplify the game tree.Further more,we describe the motivation of the verifier.Then,we prove that rational players have no motivation to deviate from honest behavior using sequential equilibrium so that rational players can reconstruct the secret correctly.Finally,we complete the simulation using the smart contract and analyze our entire scheme.In addition,the game of our scheme does not need to be repeated multiple times to reach sequential equilibrium,i.e.,the game always follows the rational path. | Zerui CHEN Youliang TIAN Changgen PENG | 2021 | Science China(Information Sciences)2021，64，10： | 0 |
| 6 | On Formulas and Some Combinatorial Properties of Schubert Polynomials显示文摘 | Zerui Zhang Yuqun Chen | 2017 | Algebra Colloquium2017，24，4： | 0 |
| 7 | Free Products of Trialgebras显示文摘We apply the method of Grobner-Shirshov bases for replicated algebras devel-oped by Kolesnikov to offer a general approach for constructing free products of associative trialgebras(or trioids).In particular,the open problem of Zhuchok on constructing free products of trioids is solved. | Juwei Huang Yuqun Chen Zerui Zhang | 2024 | Algebra Colloquium2024，31，1： | 0 |
| 8 | Morphology evolution and breakdown mechanism of cross-linked polyethylene(XLPE)-silicone rubber(SiR)interface induced by silicone grease diffusion显示文摘Silicone grease(SG)is used for lubrication during cable accessory installation and can penetrate into the silicone rubber(SiR),leading to properties deterioration of the SiR.In this study,the effects of SG on the breakdown characteristics of the cross-linked poly-ethylene(XLPE)-SiR interface are investigated.First,the variation of the XLPE-SiR interface breakdown voltage with SG coating time is experimentally explored.The interface breakdown voltage significantly increases after SG is applied,remains stable for coating times of up to approximately 144 h and then rapidly decreases;the minimum interface breakdown voltage is lower than that without the SG coating.Next,the effects of SG on the chemical composition and surface topography of the SiR are examined by infrared spectroscopy and optical profilometry,respectively.The SG penetration does not change the functional groups of the SiR but significantly increases its surface roughness.Finally,the interface electric-field distribution after coating with SG is analysed by finite-element simulation,revealing that the residual SG at the interface distorts the interface electric field after a long coating time.The increase in the SiR surface roughness caused by SG diffusion and the interface electric-field distortion caused by the residual SG together lead to the decrease of the interface breakdown voltage. | Zerui Li Kai Zhou Pengfei Meng Hao Yuan Zikang Wang Yidong Chen Yuan Li Guangya Zhu | 2022 | High Voltage2022，7，4： | 0 |
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