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| 1 | Metallic vanadium trioxide intercalated with phase transformation for advanced aqueous zinc-ion batteries显示文摘Aqueous zinc-ion batteries have broad application prospects due to the eco-friendliness,cost-economy and high safety.However,the scarcity of high-performance cathodes with outstanding rate capability and long lifespan has affected their development.Herein,we report a metallic vanadium trioxide material intercalated with phase transformation as cathode applied in aqueous zinc-ion batteries.It offers satisfactory electrochemical performances with a high specific capacity(435 mAh g^(-1) at 0.5 A g^(-1)),decent power density(5.23 kW kg^(-1))and desired energy density(331 Wh kg^(-1)),as well as good cyclability.The superior performance originates from the stable structure and fast Zn^(2+)diffusion,enabled by the pre-intercalation of Zn^(2+)and water molecules. | Kang Hu Danqing Jin Yao Zhang Longwei Ke Huan Shang Yan Yan Huijuan Lin Kun Rui Jixin Zhu | 2021 | Journal of Energy Chemistry2021，30，10： | 1 |
| 2 | Laboratory-scale investigation of response characteristics of liquid-filled rock joints with different joint inclinations under dynamic loading显示文摘In underground rock engineering,water-bearing faults may be subjected to dynamic loading,resulting in the coupling of hydraulic and dynamic hazards.Understanding the interaction mechanism between the stress waves induced by dynamic loadings and liquid-filled rock joints is therefore crucial.In this study,an auxiliary device for simulating the liquid-filled layer was developed to analyze the dynamic response characteristics of liquid-filled rock joints in laboratory.Granite and polymethyl methacrylate(PMMA)specimens were chosen for testing,and high-amplitude shock waves induced by a split Hopkinson pressure bar(SHPB)were used to produce dynamic loadings.Impact loading tests were conducted on liquid-filled rock joints with different joint inclinations.The energy propagation coefficient and peak liquid pressure were proposed to investigate the energy propagation and attenuation of waves propagating across the joints,as well as the dynamic response characteristics of the liquid in the liquid-filled rock joints.For the inclination angle range considered herein,the experimental results showed that the energy propagation coefficient gently diminished with increasing joint inclination,and smaller coefficient values were obtained for granite specimens compared with PMMA specimens.The peak liquid pressure exhibited a gradually decreasing trend with increasing joint inclination,and the peak pressure for granite specimens was slightly higher than that for PMMA specimens.Overall,this paper may provide a considerably better method for studying liquid-filled rock joints at the laboratory scale,and serves as a guide for interpreting the underlying mechanisms for interactions between stress waves and liquid-filled rock joints. | Jin Huang Xiaoli Liu Danqing Song Jian Zhao Enzhi Wang Jianmin Zhang | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，2： | 1 |
| 3 | Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration by rejuvenating senescent tendon stem/progenitor cells显示文摘Adult tendon stem/progenitor cells(TSPCs)are essential for tendon maintenance,regeneration,and repair,yet they become susceptible to senescence with age,impairing the self-healing capacity of tendons.In this study,we employ a recently developed deep-learning-based efficacy prediction system to screen potential stemness-promoting and senescence-inhibiting drugs from natural products using the transcriptional signatures of stemness.The top-ranked candidate,prim-O-glucosylcimifugin(POG),a saposhnikovia root extract,could ameliorate TPSC senescent phenotypes caused by long-term passage and natural aging in rats and humans,as well as restore the self-renewal and proliferative capacities and tenogenic potential of aged TSPCs.In vivo,the systematic administration of POG or the local delivery of POG nanoparticles functionally rescued endogenous tendon regeneration and repair in aged rats to levels similar to those of normal animals.Mechanistically,POG protects TSPCs against functional impairment during both passage-induced and natural aging by simultaneously suppressing nuclear factor-κB and decreasing mTOR signaling with the induction of autophagy.Thus,the strategy of pharmacological intervention with the deep learning-predicted compound POG could rejuvenate aged TSPCs and improve the regenerative capacity of aged tendons. | Yu Wang Shanshan Jin Dan Luo Danqing He Min Yu Lisha Zhu Zixin Li Liyuan Chen Chengye Ding Xiaolan Wu Tianhao Wu Weiran Huang Xuelin Zhao Meng Xu Zhengwei Xie Yan Liu | 2023 | Bone Research2023，11，4： | 0 |
| 4 | A hierarchical bilayer architecture for complex tissue regeneration显示文摘Engineering a complete,physiologically functional,periodontal complex structure remains a great clinical challenge due to the highly hierarchical architecture of the periodontium and coordinated regulation of multiple growth factors required to induce stem cell multilineage differentiation.Using biomimetic self-assembly and microstamping techniques,we construct a hierarchical bilayer architecture consisting of intrafibrillarly mineralized collagen resembling bone and cementum,and unmineralized parallel-aligned fibrils mimicking periodontal ligament.The prepared biphasic scaffold possesses unique micro/nano structure,differential mechanical properties,and growth factor-rich microenvironment between the two phases,realizing a perfect simulation of natural periodontal hard/soft tissue interface.The interconnected porous hard compartment with a Young’s modulus of 1409.00±160.83 MPa could induce cross-arrangement and osteogenic differentiation of stem cells in vitro,whereas the micropatterned soft compartment with a Young’s modulus of 42.62±4.58 MPa containing abundant endogenous growth factors,could guide parallel arrangement and fibrogenic differentiation of stem cells in vitro.After implantation in critical-sized complete periodontal tissue defect,the biomimetic bilayer architecture potently reconstructs native periodontium with the insertion of periodontal ligament fibers into newly formed cementum and alveolar bone by recruiting host mesenchymal stem cells and activating the transforming growth factor beta 1/Smad3 signaling pathway.Taken together,integration of self-assembly and microstamping strategies could successfully fabricate a hierarchical bilayer architecture,which exhibits great potential for recruiting and regulating host stem cells to promote synergistic regeneration of hard/soft tissues. | Min Yu Dan Luo Jing Qiao Jiusi Guo Danqing He Shanshan Jin Lin Tang Yu Wang Xin Shi Jing Mao Shengjie Cui Yu Fu Zixin Li Dawei Liu Ting Zhang Chi Zhang Zhou Li Yongsheng Zhou Yan Liu | 2022 | Bioactive Materials2022，7，4： | 0 |
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