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Nitrogen‑Doped Magnetic‑Dielectric‑Carbon Aerogel for High‑Efficiency Electromagnetic Wave Absorption 被引量:2
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作者 Shijie Wang Xue Zhang +5 位作者 Shuyan Hao Jing Qiao Zhou Wang lili wu Jiurong Liu Fenglong Wang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2024年第1期313-327,共15页
Carbonbased aerogels derived from biomass chitosan are encountering a flourishing moment in electromagnetic protection on account of lightweight,controllable fabrication and versatility.Nevertheless,developing a facil... Carbonbased aerogels derived from biomass chitosan are encountering a flourishing moment in electromagnetic protection on account of lightweight,controllable fabrication and versatility.Nevertheless,developing a facile construction method of component design with carbon-based aerogels for high-efficiency electromagnetic wave absorption(EWA)materials with a broad effective absorption bandwidth(EAB)and strong absorption yet hits some snags.Herein,the nitrogen-doped magnetic-dielectric-carbon aerogel was obtained via ice template method followed by carbonization treatment,homogeneous and abundant nickel(Ni)and manganese oxide(MnO)particles in situ grew on the carbon aerogels.Thanks to the optimization of impedance matching of dielectric/magnetic components to carbon aerogels,the nitrogen-doped magnetic-dielectric-carbon aerogel(Ni/MnO-CA)suggests a praiseworthy EWA performance,with an ultra-wide EAB of 7.36 GHz and a minimum reflection loss(RLmin)of−64.09 dB,while achieving a specific reflection loss of−253.32 dB mm−1.Furthermore,the aerogel reveals excellent radar stealth,infrared stealth,and thermal management capabilities.Hence,the high-performance,easy fabricated and multifunctional nickel/manganese oxide/carbon aerogels have broad application aspects for electromagnetic protection,electronic devices and aerospace. 展开更多
关键词 Electromagnetic wave absorption Wide bandwidth Dielectric-magnetic synergy MULTIFUNCTION
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基于MRI影像组学模型术前预测垂体神经内分泌瘤血供
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作者 吴莉莉 孙陈 +3 位作者 何天洪 吴树剑 范莉芳 陈基明 《中国肿瘤临床》 CAS CSCD 北大核心 2024年第8期406-412,共7页
目的:探讨基于MRI影像组学特征的机器学习模型在术前预测垂体神经内分泌瘤血供的价值。方法:回顾性分析2013年4月至2023年4月皖南医学院第一附属弋矶山医院136例经病理确诊的垂体神经内分泌瘤(直径>10 mm)患者的临床和影像资料。根... 目的:探讨基于MRI影像组学特征的机器学习模型在术前预测垂体神经内分泌瘤血供的价值。方法:回顾性分析2013年4月至2023年4月皖南医学院第一附属弋矶山医院136例经病理确诊的垂体神经内分泌瘤(直径>10 mm)患者的临床和影像资料。根据术中所见将其分为血供丰富组50例和血供一般组86例。按照完全随机的方法将所有患者以7∶3的比例分为训练组96例和验证组40例。采用多因素Logistic回归(LR)、随机森林(RF)、支持向量机(SVM)三种机器学习算法分别建立影像组学预测模型。绘制受试者工作特征曲线(ROC)评价模型的诊断效能,并绘制决策曲线分析(DCA)评估模型的临床净收益。结果:临床模型在训练组和验证组中的曲线下面积(AUC)为0.74、0.82;T1WI、T2WI、T1WI增强及联合序列影像组学模型在训练组中AUC分别为0.80、0.84、0.82、0.84,在验证组中分别为0.82、0.80、0.85、0.83;LR、RF、SVM模型在训练组中的AUC分别为0.85、0.87、0.84,验证组中分别为0.85、0.85、0.83。影像组学各模型均优于临床模型的诊断效能。DCA显示联合序列模型、LR及SVM模型均获得较好的临床净收益,LR模型最优。结论:MRI影像组学的机器学习各模型均具有较高的预测价值,优于临床医生肉眼观察MRI图像的判断,且具有较好的临床净收益,能够为临床决策提供有效指导作用。 展开更多
关键词 垂体神经内分泌瘤 血供 机器学习 影像组学 磁共振成像
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VSe_(2)/V_(2)C heterocatalyst with built-in electric field for efficient lithium-sulfur batteries:Remedies polysulfide shuttle and conversion kinetics
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作者 Yanwei Lv Lina Bai +7 位作者 Qi Jin Siyu Deng Xinzhi Ma Fengfeng Han Juan Wang Lirong Zhang lili wu Xitian Zhang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2024年第2期397-409,I0010,共14页
Lithium sulfur(Li-S)battery is a kind of burgeoning energy storage system with high energy density.However,the electrolyte-soluble intermediate lithium polysulfides(Li PSs)undergo notorious shuttle effect,which seriou... Lithium sulfur(Li-S)battery is a kind of burgeoning energy storage system with high energy density.However,the electrolyte-soluble intermediate lithium polysulfides(Li PSs)undergo notorious shuttle effect,which seriously hinders the commercialization of Li-S batteries.Herein,a unique VSe_(2)/V_(2)C heterostructure with local built-in electric field was rationally engineered from V_(2)C parent via a facile thermal selenization process.It exquisitely synergizes the strong affinity of V_(2)C with the effective electrocatalytic activity of VSe_(2).More importantly,the local built-in electric field at the heterointerface can sufficiently promote the electron/ion transport ability and eventually boost the conversion kinetics of sulfur species.The Li-S battery equipped with VSe_(2)/V_(2)C-CNTs-PP separator achieved an outstanding initial specific capacity of 1439.1 m A h g^(-1)with a high capacity retention of 73%after 100 cycles at0.1 C.More impressively,a wonderful capacity of 571.6 mA h g^(-1)was effectively maintained after 600cycles at 2 C with a capacity decay rate of 0.07%.Even under a sulfur loading of 4.8 mg cm^(-2),areal capacity still can be up to 5.6 m A h cm^(-2).In-situ Raman tests explicitly illustrate the effectiveness of VSe_(2)/V_(2)C-CNTs modifier in restricting Li PSs shuttle.Combined with density functional theory calculations,the underlying mechanism of VSe_(2)/V_(2)C heterostructure for remedying Li PSs shuttling and conversion kinetics was deciphered.The strategy of constructing VSe_(2)/V_(2)C heterocatalyst in this work proposes a universal protocol to design metal selenide-based separator modifier for Li-S battery.Besides,it opens an efficient avenue for the separator engineering of Li-S batteries. 展开更多
关键词 Li-S battery Shuttle effect Separator modifier VSe_(2)/V_(2)C heterostructure Built-in electric field
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Insights into the Origins of Solar-Assisted Electrochemical Water Oxidation in Allotropic Co_(5.47)N/CON Heterojunctions
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作者 Sirui Liu Qiong Gao +8 位作者 Bo Geng lili wu Zhikun Xu Xinzhi Ma Shijie Liu Boquan Li Mingyi Zhang Lirong Zhang Xitian Zhang 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2024年第5期234-243,共10页
Solar irradiation can efficiently promote the kinetics of the oxygen evolution reaction(OER)during water splitting,where heterojunction catalysts exhibit excellent photoresponsive properties.However,insights into the ... Solar irradiation can efficiently promote the kinetics of the oxygen evolution reaction(OER)during water splitting,where heterojunction catalysts exhibit excellent photoresponsive properties.However,insights into the origins of photoassisted OER catalysis remain unclear,especially the interfaced promotion under convergent solar irradiation(CSI).Herein,novel allotropic Co_(5.47)N/CoN heterojunctions were synthesized,and corresponding OER mechanisms under CSI were comprehensively uncovered from physical and chemical aspects using the in situ Raman technique and electrochemical cyclic voltammetry method.Our results provide a unique mechanism where high-energy UV light promotes the Co^(3+/4+)conversion process in addition to the ordinary photoelectric effect excitation of the Co^(2+)material.Importantly,visible light under CSI can produce a photothermal effect for Co^(2+)excitation and Co^(3+/4+)conversion,which promotes the OER significantly more than the usual photoelectric effect.As a result,Co_(5.47)N/CoN(containing 28%CoN)obtained 317.9%OER enhancement,which provides a pathway for constructing excellent OER catalysts. 展开更多
关键词 chemical origins in situ Raman OER photothermal effect physical origins
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Conversion of LiPSs Accelerated by Pt-Doped Biomass-Derived Hyphae Carbon Nanobelts as Self-Supporting Hosts for Long-Lifespan Li-S Batteries
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作者 Fengfeng Han Liwen Fan +4 位作者 Xinzhi Ma Huiqing Lu Lu Li Xitian Zhang lili wu 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2024年第3期49-58,共10页
Rechargeable Li-S batteries(LSBs)are emerging as an important alternative to lithium-ion batteries(LIBs),owing to their high energy densities and low cost;yet sluggish redox kinetics of LiPSs results in inferior cycle... Rechargeable Li-S batteries(LSBs)are emerging as an important alternative to lithium-ion batteries(LIBs),owing to their high energy densities and low cost;yet sluggish redox kinetics of LiPSs results in inferior cycle life.Herein,we prepared multifunctional self-supporting hyphae carbon nanobelt(HCNB)as hosts by carbonization of hyphae balls of Rhizopus,which could increase the S loading of the cathode without sacrificing reaction kinetics.Trace platinum(Pt)nanoparticles were introduced into HCNBs(PtHCNBs)by ion-beam sputtering deposition.Based on the X-ray photoelectron spectroscopy analyses,the introduced trace Pt regulated the local electronic states of heteroatoms in HCNBs.Electrochemical kinetics investigation combined with operando Raman measurements revealed the accelerated reaction mechanics of sulfur species.Benefiting from the synergistic catalytic effect and the unique structures,the as-prepared PtHCNB/MWNCT/S cathodes delivered a stable capacity retention of 77%for 400 cycles at 0.5 C with a sulfur loading of 4.6 mg cm^(-2).More importantly,remarkable cycling performance was achieved with an high areal S loading of 7.6 mg cm^(-2).This finding offers a new strategy to prolong the cycle life of LSBs. 展开更多
关键词 high areal capacity high S loading hyphae carbon nanobelt lithium-sulfur battery operando Raman
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MOF(ZM)/Potassium Citrate-Derived Composite Porous Carbon and Its Electrochemical Properties
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作者 Guoqing Zhang Pitao Wang +6 位作者 Chi Zhang lili wu Jing Yang Mingjian Zhang Zhong Ren Jianqiang Zhang Heming Luo 《Journal of Minerals and Materials Characterization and Engineering》 2021年第5期462-479,共18页
Metal-organic frameworks are compounds with a reticulated skeletal structure formed by chemically bonding inorganic and organic units that are widely used in many fields, such as photocatalysis, gas separation and ene... Metal-organic frameworks are compounds with a reticulated skeletal structure formed by chemically bonding inorganic and organic units that are widely used in many fields, such as photocatalysis, gas separation and energy storage, because of their unique structures. In this paper, we prepared a metal-organic framework [(<em>μ</em><sub>2</sub>-2-methylimidazolyl)<sub>12</sub>-Zn(ii)<sub>6</sub>-H<sub>18</sub>O<sub>10</sub>]<sub>n</sub>(ZM) with well-developed pores and high specific surface area of MOFs by the solution method. And MOF-derived porous carbon was prepared by the direct charring method in an argon atmosphere using a mixture of ZM, ZM and potassium citrate as carbon precursors. Characterization analysis revealed that the maximum specific surface area of ZMPC-800-1:15 was 2014.97 m<sup>2</sup><span style="white-space:nowrap;">&#8901;</span>g<sup><span style="white-space:nowrap;">&minus;</span>1</sup>, and the pore size structure was mainly mesoporous. At a current density of 1.0 A<span style="white-space:nowrap;">&#8901;</span>g<sup><span style="white-space:nowrap;">&minus;</span>1</sup> the specific capacitance of ZMC-800 and ZMPC-800-1:15 was 121.3 F<span style="white-space:nowrap;">&#8901;</span>g<sup><span style="white-space:nowrap;">&minus;</span>1</sup> and 226.6 F<span style="white-space:nowrap;">&#8901;</span>g<sup><span style="white-space:nowrap;">&minus;</span>1</sup>, respectively, with a substantial increase of 86.8%. The specific capacitance of ZMPC-800-1:15 decays to 168.8 F<span style="white-space:nowrap;">&#8901;</span>g<sup><span style="white-space:nowrap;">&minus;</span>1</sup>, with a decay rate of 25.5%, when the current density increases to 10.0 A<span style="white-space:nowrap;">&#8901;</span>g<sup><span style="white-space:nowrap;">&minus;</span>1</sup>. After 5000 constant current charge/ discharge cycles, the capacitance retention rate was still 96.41%. These results prove that the application of MOF-derived carbon materials in future supercapacitors is very promising. 展开更多
关键词 Metal-Organic Framework Room Temperature Solution Method Derived Composite Porous Carbon Electrochemical Performance SUPERCAPACITOR
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Carbon-Based MOF Derivatives:Emerging Efficient Electromagnetic Wave Absorption Agents 被引量:18
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作者 Xue Zhang Jing Qiao +6 位作者 Yanyan Jiang Fenglong Wang Xuelei Tian Zhou Wang lili wu Wei Liu Jiurong Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2021年第9期105-135,共31页
To tackle the aggravating electromagnetic wave(EMW)pollution issues,high-efficiency EMW absorption materials are urgently explored.Metal-organic framework(MOF)derivatives have been intensively investigated for EMW abs... To tackle the aggravating electromagnetic wave(EMW)pollution issues,high-efficiency EMW absorption materials are urgently explored.Metal-organic framework(MOF)derivatives have been intensively investigated for EMW absorption due to the distinctive components and structures,which is expected to satisfy diverse application requirements.The extensive developments on MOF derivatives demonstrate its significantly important role in this research area.Particularly,MOF derivatives deliver huge performance superiorities in light weight,broad bandwidth,and robust loss capacity,which are attributed to the outstanding impedance matching,multiple attenuation mechanisms,and destructive interference effect.Herein,we summarized the relevant theories and evaluation methods,and categorized the state-of-the-art research progresses on MOF derivatives in EMW absorption field.In spite of lots of challenges to face,MOF derivatives have illuminated infinite potentials for further development as EMW absorption materials. 展开更多
关键词 Carbon-based MOF derivatives Special structures Multiple attenuation mechanisms Impedance matching EMW absorption
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Non‑Magnetic Bimetallic MOF‑Derived Porous Carbon‑Wrapped TiO2/ ZrTiO4 Composites for Efficient Electromagnetic Wave Absorption 被引量:17
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作者 Jing Qiao Xue Zhang +7 位作者 Chang Liu Longfei Lyu Yunfei Yang Zhou Wang lili wu Wei Liu Fenglong Wang Jiurong Liu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2021年第5期45-60,共16页
Modern communication technologies put forward higher requirements for electromagnetic wave(EMW)absorption materials.Metal-organic framework(MOF)derivatives have been widely concerned with its diverse advantages.To bre... Modern communication technologies put forward higher requirements for electromagnetic wave(EMW)absorption materials.Metal-organic framework(MOF)derivatives have been widely concerned with its diverse advantages.To break the mindset of magneticderivative design,and make up the shortage of monometallic non-magnetic derivatives,we first try non-magnetic bimetallic MOFs derivatives to achieve efficient EMW absorption.The porous carbon-wrapped TiO2/ZrTiO4 composites derived from PCN-415(TiZr-MOFs)are qualified with a minimum reflection loss of−67.8 dB(2.16 mm,13.0 GHz),and a maximum effective absorption bandwidth of 5.9 GHz(2.70 mm).Through in-depth discussions,the synergy of enhanced interfacial polarization and other attenuation mechanisms in the composites is revealed.Therefore,this work confirms the huge potentials of nonmagnetic bimetallic MOFs derivatives in EMW absorption applications. 展开更多
关键词 Bimetallic metal-organic framework PCN-415 MOF derivatives TiO2/ZrTiO4/C composites Electromagnetic wave absorption
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Jiaweisinisan facilitates neurogenesis in the hippocampus after stress damage 被引量:7
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作者 lili wu Chuanlian Ran +5 位作者 Shukao Liu Lizhen Liao Yanling Chen Hualei Guo Weikang wu Can Yan 《Neural Regeneration Research》 SCIE CAS CSCD 2013年第12期1091-1102,共12页
The traditional Chinese medicine Jiaweisinisan has antidepressant effects, and can inhibit hypothalamus-pituitary-adrenal gland axis hyperactivity in stress-induced depression. In this study, rat hippocampal neural pr... The traditional Chinese medicine Jiaweisinisan has antidepressant effects, and can inhibit hypothalamus-pituitary-adrenal gland axis hyperactivity in stress-induced depression. In this study, rat hippocampal neural precursor cells were cultured in serum-free medium in vitro and a stress damage model was established with 120 IJM corticosterone. Cells were treated with 10% (v/v) Jiaweisinisan drug-containing serum and the corticosterone antagonist RU38486. Results of the 3-(4,5-dimethylthiazol-2-yl)-3,5-di-phenytetrazoliumromide assay showed that both Jiaweisinisan drug-containing serum and RU38486 promoted the proliferation of neural precursor cells after corticosterone exposure. Immunofluorescence detection showed that after Jiaweisinisan drug-containing serum and RU38486 treatment, the 5-bromo-2-deoxyuridine/terminal deoxynucleotidyl transferase dUTP nick end labeling ratio in hippocampal neural precursor cells significantly increased, and the apoptotic rates of glial cells reduced, and neuron-like cell differentiation from neural precursor cells significantly increased. Our experimental findings indicate that Jiaweisinisan promotes hippocampal neurogenesis after stress damage. 展开更多
关键词 neural regeneration traditional Chinese medicine Jiaweisinisan CORTICOSTERONE hippocampalneural precursor cells proliferation differentiation apoptosis grants-supported paper NEUROREGENERATION
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Recent Advancements on Photothermal Conversion and Antibacterial Applications over MXenes-Based Materials 被引量:13
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作者 Shuyan Hao Hecheng Han +10 位作者 Zhengyi Yang Mengting Chen Yanyan Jiang Guixia Lu Lun Dong Hongling Wen Hui Li Jiurong Liu lili wu Zhou Wang Fenglong Wang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2022年第11期107-142,共36页
The pernicious bacterial proliferation and emergence of super-resistant bacteria have already posed a great threat to public health,which drives researchers to develop antibiotic-free strategies to eradicate these fie... The pernicious bacterial proliferation and emergence of super-resistant bacteria have already posed a great threat to public health,which drives researchers to develop antibiotic-free strategies to eradicate these fierce microbes.Although enormous achievements have already been achieved,it remains an arduous challenge to realize efficient sterilization to cut off the drug resistance generation.Recently,photothermal therapy(PTT)has emerged as a promising solution to efficiently damage the integrity of pathogenic bacteria based on hyperthermia beyond their tolerance.Until now,numerous photothermal agents have been studied for antimicrobial PTT.Among them,MXenes(a type of two-dimensional transition metal carbides or nitrides)are extensively investigated as one of the most promising candidates due to their high aspect ratio,atomic-thin thickness,excellent photothermal performance,low cytotoxicity,and ultrahigh dispersibility in aqueous systems.Besides,the enormous application scenarios using their antibacterial properties can be tailored via elaborated designs of MXenes-based materials.In this review,the synthetic approaches and textural properties of MXenes have been systematically presented first,and then the photothermal properties and sterilization mechanisms using MXenes-based materials are documented.Subsequently,recent progress in diverse fields making use of the photothermal and antibacterial performances of MXenes-based materials are well summarized to reveal the potential applications of these materials for various purposes,including in vitro and in vivo sterilization,solar water evaporation and purification,and flexible antibacterial fabrics.Last but not least,the current challenges and future perspectives are discussed to provide theoretical guidance for the fabrication of efficient antimicrobial systems using MXenes. 展开更多
关键词 MXenes Antibacterial mechanisms Photothermal properties Antibacterial applications
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Tailoring the Spatial Distribution and Content of Inorganic Nitrides in Solid-Electrolyte Interphases for the Stable Li Anode in Li-S Batteries 被引量:2
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作者 Qi Jin Kaixin Zhao +3 位作者 Lu Li Xinzhi Ma lili wu Xitian Zhang 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2022年第4期1180-1188,共9页
Among the alternatives to lithium-ion batteries,lithium-sulfur(Li-S)batteries are considered as an attractive option because of their high theoretical energy density of 2570 Wh kg^(−1).However,the application of the L... Among the alternatives to lithium-ion batteries,lithium-sulfur(Li-S)batteries are considered as an attractive option because of their high theoretical energy density of 2570 Wh kg^(−1).However,the application of the Li-S battery has been plagued by the rapid failure of the Li anode due to the Li dendrite growth and severe parasitic reactions between Li and lithium polysulfides.The physicochemical properties of the solid-electrolyte interphase have a profound impact on the performance of the Li anode.Herein,a lithium polyacrylic acid/lithium nitrate(LPL)-protective layer is developed to inhibit the dendrite Li growth and parasitic reactions by tailoring the spatial distribution and content of LiN_(x)O_(y) and Li_(3)N at the SEI.The modified SEI is thoroughly investigated for compositions,ion transport properties,and Li plating/stripping kinetics.Consequently,the Li-S cell with a high S loading cathode(5.0 mg cm^(−2)),LPL layer-protected thin Li anode(50μm),and 40μL electrolyte shows a long life span of 120 cycles.This work evokes the avenue for regulating the spatial distribution of inorganic nitride at the SEI to suppress the formation of Li dendrites and parasitic reactions in Li-S batteries and perhaps guiding the design of analogous battery systems. 展开更多
关键词 Li anode Li dendrites LiPAA/LiNO_(3)layer SEI shuttle effect
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Xiaoyaosan-containing serum inhibits corticosterone-induced apoptosis in PC12 cells by downregulating [Ca^(2+)]_i overload
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作者 Lin Li Xuanhong Zhang +5 位作者 Tingting Yan Qian Li Shukao Liu lili wu Can Yan HongmeiTan 《Neural Regeneration Research》 SCIE CAS CSCD 2010年第18期1396-1402,共7页
in hippocampal neurons is an important contributor to depression. [Ca^2+]i of hippocampal neurons may raise rapidly with increased corticosterone concentrations, leading to apoptosis. The anti-depressant effects of X... in hippocampal neurons is an important contributor to depression. [Ca^2+]i of hippocampal neurons may raise rapidly with increased corticosterone concentrations, leading to apoptosis. The anti-depressant effects of Xiaoyaosan (Free and Easy Wanderer's Powder) may inhibit apoptosis by down regulating the [Ca^2+]i overload. PC12 cells were containing with corticosterone to simulate neuronal injury, dosed with Xiaoyaosan-containing serum, and the following parameters were measured: apoptosis,[Ca^2+]i overload, and changes in mitochondrial membrane potential (△ψm) and bioenergetics. High-dose Xiaoyaosan-containing serum (the dose of intragastric administration was 2.633 g herb/mL) not only inhibited morphological injury and cell apoptosis, but also suppressed [Ca^2+]i overload induced by corticosterone. Xiaoyaosan also blocked the decrease in mitochondrial membrane potential and adenosine triphosphate levels induced by corticosterone. Xiaoyaosan dose-dependently suppresses corticosterone-induced apoptosis, potentially via inhibiting [Ca^2+]ioverload, and prevents impaired mitochondrial bioenergetics by maintaining mitochondrial membrane potential and adenosine triphosphate production, providing a putative mechanism for its antidepressant effects. 展开更多
关键词 Xiaoyaosan CORTICOSTERONE apoptosis PC12 cells [Ca^2+]ioverload neural regeneration
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Cross-species recognition of bat coronavirus RsYN04 and cross-reaction of SARS-CoV-2 antibodies against the virus
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作者 Runchu Zhao Sheng Niu +12 位作者 Pu Han Yue Gao Dezhi Liu Chunliang Luo Honghui Liu Bo Liu Yanli Xu Jianxun Qi Zhihai Chen Weifeng Shi lili wu George F.Gao Qihui Wang 《Zoological Research》 SCIE CSCD 2023年第6期1015-1025,共11页
Following the outbreak of coronavirus disease 2019(COVID-19),several severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)-related coronaviruses have been discovered.Previous research has identified a novel line... Following the outbreak of coronavirus disease 2019(COVID-19),several severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)-related coronaviruses have been discovered.Previous research has identified a novel lineage of SARS-CoV-2-related CoVs in bats,including RsYN04,which recognizes human angiotensin-converting enzyme 2(ACE2)and thus poses a potential threat to humans.Here,we screened the binding of the RsYN04receptor-binding domain(RBD)to ACE2 orthologs from 52animal species and found that the virus showed a narrower ACE2-binding spectrum than SARS-CoV-2.However,the presence of the T484W mutation in the RsYN04 RBD broadened its range.We also evaluated 44 SARS-CoV-2antibodies targeting seven epitope communities in the SARS-CoV-2 RBD,together with serum obtained from COVID-19 convalescents and vaccinees,to determine their cross-reaction against RsYN04.Results showed that no antibodies,except for the RBD-6 and RBD-7 classes,bound to the RsYN04 RBD,indicating substantial immune differences from SARS-CoV-2.Furthermore,the structure of the RsYN04 RBD in complex with cross-reactive antibody S43 in RBD-7 revealed a potently broad epitope for the development of therapeutics and vaccines.Our findings suggest RsYN04 and other viruses belonging to the same clade have the potential to infect several species,including humans,highlighting the necessity for viral surveillance and development of broad anticoronavirus countermeasures. 展开更多
关键词 SARS-CoV-2-related coronavirus RsYN04 ACE2 Antibody Structure
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Interfacial engineering in lead-free tin-based perovskite solar cells
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作者 Zhenxi Wan Huagui Lai +9 位作者 Shengqiang Ren Rui He Yiting Jiang Jincheng Luo Qiyu Chen Xia Hao Ye Wang Jingquan Zhang lili wu Dewei Zhao 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2021年第6期147-168,I0005,共23页
Lead(Pb)-free Tin(Sn)-based perovskite solar cells(PSCs)have been favored by the community due to their low toxicity,preferable bandgaps,and great potential to achieve high power conversion efficiencies(PCEs).Interfac... Lead(Pb)-free Tin(Sn)-based perovskite solar cells(PSCs)have been favored by the community due to their low toxicity,preferable bandgaps,and great potential to achieve high power conversion efficiencies(PCEs).Interfaces engineering plays important roles in developing highly efficient Sn-based PSCs via passivation of trap defects,alignment of energy levels,and incorporation of low-dimensional Sn-based perovskites.In this review,we summarize the development of Pb-free Sn-based perovskites and their applications in devices,especially the strategies of improving the interfaces.We also provide perspectives for future research.Our aim is to help the development of new and advanced approaches to achieving high-performance environment-friendly Pb-free Sn-based PSCs. 展开更多
关键词 Tin-based perovskites Perovskite solar cells Interfacial engineering Environment-friendly Energy level alignment
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Enhancing Li cycling coulombic efficiency while mitigating “shuttle effect” of Li-S battery through sustained release of LiNO_(3)
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作者 Qi Jin Kaixin Zhao +3 位作者 lili wu Lu Li Long Kong Xitian Zhang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2023年第9期22-29,共8页
In practical lithium-sulfur batteries(LSBs),the shuttle effect and Li cycling coulombic efficiency(CE) are strongly affected by the physicochemical properties of solid electrolyte interphase(SEI).LiNO_(3) is widely us... In practical lithium-sulfur batteries(LSBs),the shuttle effect and Li cycling coulombic efficiency(CE) are strongly affected by the physicochemical properties of solid electrolyte interphase(SEI).LiNO_(3) is widely used as an additive in electrolytes to build a high-quality SEI,but its self-sacrificial nature limits the ability to mitigate the shuttle effect and stabilize Li anode during long-term cycling.To counteract LiNO_(3) consumption during long-term cycling without using a high initial concentration,inspired by sustainedrelease drugs,we encapsulated LiNO_(3) in lithiated Nafion polymer and added an electrolyte co-solvent(1,1,2,2-tetrafluoroethylene 2,2,2-trifluoromethyl ether) with poor LiNO_(3) solubility to construct highquality and durable F-and N-rich SEI.Theoretical calculations,experiments,multiphysics simulations,and in-situ observations confirmed that the F-and N-rich SEI can modulate lithium deposition behavior and allow persistent repair of SEI during prolonged cycling.Hence,the F-and N-rich SEI improves the Li anode cycling CE to 99.63% and alleviates the shuttle effect during long-term cycling.The lithium anode with sustainable F-and N-rich SEI shows a stable Li plating/stripping over 2000 h at 1 mA cm^(-2).As expected,Li‖S full cells with this SEI achieved a long lifespan of 250 cycles,far exceeding cells with a routine SEI.The Li‖S pouch cell based on F-and N-rich SEI also can achieve a high energy density of about300 Wh kg^(-1) at initial cycles.This strategy provides a novel design for high-quality and durable SEls in LSBs and may also be extendable to other alkali metal batteries. 展开更多
关键词 Lithium-sulfur battery Solid electrolyte interphase LiNO_(3) Coulombic efficiency Shuttle effect
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Efficient Environment-friendly Lead-free Tin Perovskite Solar Cells Enabled by Incorporating 4-Fluorobenzylammonium Iodide Additives
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作者 Shengli Zou Shengqiang Ren +8 位作者 Yiting Jiang Yuanfang Huang Wenwu Wang Changlei Wang Cong Chen Xia Hao lili wu Jingquan Zhang Dewei Zhao 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2023年第6期318-326,共9页
Development of tin(Sn)-based perovskite solar cells(PSCs)largely lags behind that of lead counterparts due to fast crystallization process of Sn perovskite and numerous defects in both bulk and surface of Sn perovskit... Development of tin(Sn)-based perovskite solar cells(PSCs)largely lags behind that of lead counterparts due to fast crystallization process of Sn perovskite and numerous defects in both bulk and surface of Sn perovskite films.Herein,this work reports a facile strategy of introducing 4-fluorobenzylammonium iodide(FBZAI)as additives into Sn perovskite precursor to synergistically modulate the roles of benzylamine and fluorine in Sn-based PSCs.Incorporation of FBZAI can increase crystallinity,passivate defects,and inhibit the oxidation of Sn^(2+),leading to suppression of nonradiative recombination and enhancement of charge transport and collection in devices.As a result,the best-performing Sn-based PSC with the FBZAI additive achieves the maximum PCE of 13.85%with the enhanced fill factor of 77.8%and open-circuit voltage of 0.778 V.Our unencapsulated device exhibits good stability by maintaining 95%of its initial PCE after 160 days of storage. 展开更多
关键词 4-fluorobenzylammonium iodide defect passivation lead-free Sn perovskites perovskite solar cells stability
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Hypermethylation of promoter 5'CpG island of p16 gene in glioma tissue and plasma
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作者 Chengdong Wang lili wu +3 位作者 Lixue Guan Daokui Wang Yuting Wang Zhe Wang 《The Chinese-German Journal of Clinical Oncology》 CAS 2008年第4期241-244,共4页
Objective: To explore the clinical significance of methylation status of promoter CpG island of p16 gene in glioma tissue and plasma. Methods: Methylation specific polymerase chain reaction (MSP) was used to determine... Objective: To explore the clinical significance of methylation status of promoter CpG island of p16 gene in glioma tissue and plasma. Methods: Methylation specific polymerase chain reaction (MSP) was used to determine the methylation status of the promoter for p16 gene within glioma tissue and plasma. Immunohistochemical method (SP) was used to analyze the expressions of p16 and Ki-67 proteins. Results: Hypermethylation was found in 17/40 (42.5%) of brain gliomas, in com-parison with 11/40 (27.5%) plasma specimens (χ2 = 1.9780, P = 0.1596). Loss of p16 expression was associated (P = 0.0229) with hypermethylation of CpG island of promoter regions. Hypermethylation of p16 gene CpG island was significantly related to the increase of malignant grade of brain glioma (Tissue: χ2 = 11.4288, P = 0.0007; Plasma: χ2 = 8.9439, P = 0.0028). The Ki-67 index increased significantly (P < 0.05) in brain gliomas methylated in contrast to those unmethylated. Conclusion: P16 hypermethylation may be one of the major mechanisms of tumorigenesis of gliomas. Methylated tumor-specific DNA may be as a plasma biomarker for prognosis in patients with glioma. 展开更多
关键词 p16 gene DNA methylation CpG island GLIOMA KI-67 IMMUNOHISTOCHEMISTRY
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Primary Cutaneous MZL with Amyloid Deposition, Initially Misdiagnosed as Amyloidosis Mimics Primary Dural MZL upon Dural Dissemination
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作者 Miaoxia He lili wu +3 位作者 Minghua Zhu Chenguang Bai Shimin Zhang Jianjun Wang 《Open Journal of Pathology》 2013年第1期21-25,共5页
Primary cutaneous marginal zone B-cell lymphoma (MZL) is considered a cutaneous counterpart of extranodal MZL of mucosa-associated lymphoid tissue and an indolent lymphoma. Amyloid deposition in this tumor is very rar... Primary cutaneous marginal zone B-cell lymphoma (MZL) is considered a cutaneous counterpart of extranodal MZL of mucosa-associated lymphoid tissue and an indolent lymphoma. Amyloid deposition in this tumor is very rare. We report here a case of primary cutaneous MZL with massive amyloid deposition. The tumor disseminated to the dura and mimicked primary dural MZL. The patient had a four year history of the recurrence cutaneous lesions with a misdiagnosis of amyloidosis. The correct diagnosis was made after the metastatic dural lesion was confirmed by radiology, pathology and molecular biology approaches. It is of crucial importance for differential diagnosis to avoid misdiagnosis and the patients are indeed required long-term regular examinations and treatment because of the possibility of recurrence or dissemination. 展开更多
关键词 Skin DURA Amyloid Deposition MZL DISSEMINATION
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Role of Time-Domain Based Access Control Model
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作者 Chaoqun Liu Zhen Peng lili wu 《Journal of Software Engineering and Applications》 2016年第2期57-62,共6页
While Role-Based Access Control Model (RBAC) is being analyzed, the concept of Role of Time-domain Based Access Control Model (T-RBAC) is put forward. With time-domain added, both time-domain and authority control rol... While Role-Based Access Control Model (RBAC) is being analyzed, the concept of Role of Time-domain Based Access Control Model (T-RBAC) is put forward. With time-domain added, both time-domain and authority control roles. The basic idea of T-RBAC is introduced and described formally, and the safely of this model is analyzed. The research shows that T-RBAC fulfills both rules of information security, which are principle of least privilege and separation of duties. With practical application of T-RBCA, it can handle most of the time-related or authority-related problems. What’s more, it also increases the security level, flexibility and dynamic adaptation of the system and has lower complexity than system only handled by authority. This model also can solve conflicts caused by authority. 展开更多
关键词 TIME-DOMAIN ROLE Access Control RBCA
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Multifunctional MXene/rGO aerogels loaded with Co/MnO nanocomposites for enhanced electromagnetic wave absorption,thermal insulation and pressure sensing
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作者 Chan Guo Shiping Shao +6 位作者 Xin Zhang Yunxiang Tang Luxue Wang Jiurong Liu lili wu Ke Bi Fenglong Wang 《Nano Research》 SCIE EI CSCD 2024年第9期7803-7813,共11页
Aerogel-based composites hold promising application prospects as potential electromagnetic wave(EMW)absorption materials,yet the construction of such materials with ingenious microstructures,appropriate magnetic/diele... Aerogel-based composites hold promising application prospects as potential electromagnetic wave(EMW)absorption materials,yet the construction of such materials with ingenious microstructures,appropriate magnetic/dielectric multi-components,and integrated multifunctionality remains considerably challenging.Herein,a multicomponent Co/MnO/Ti_(3)C_(2)T_(x) MXene/rGO(CMMG)hybrid aerogel featured with three-dimensional(3D)vertical directional channel architecture is reported.Benefiting from the synergistic effect arising from the 3D conductive networking structure,diverse heterogeneous interfaces,magnetic/dielectric multicomponent,and multiple loss pathways,the optimized CMMG-2 aerogel delivers fascinating EMW absorption capabilities,characterized by a minimal reflection loss(RL_(min))of-77.41 dB and an effective absorption bandwidth(EAB)of 6.56 GHz.Additionally,the remarkable hydrophobicity,exceptional thermal insulation capabilities,and outstanding photothermal properties of CMMG-2 aerogel make it highly promising for multiple application in diverse and demanding environments.Interestingly,the distinctive pore structure of hybrid aerogel also allows it for sensitive and reliable detection of electrical signals caused by pressure changes and human motion.Thus,this research provides a viable design strategy for the development of lightweight,efficient,and multifunctional aerogel-based EMW absorption materials for various application scenarios. 展开更多
关键词 electromagnetic wave absorption Ti_(3)C_(2)qT_(x)MXene reduced graphene oxide magnetic-dielectric nanoparticles multifunctional aerogel
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