检索结果-南通市图书馆

Molecule-based vertical transistor via intermolecular charge transport throughπ-πstacking

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第5期17卷 4573-4581页

作者： Cheng Liu Cheng Fu Lingyu tang Jianghua Wu Zhangyan Mu Yamei sun Yanghang Pan Bailin Tian Kai Bao Jing Ma Qiyuan He Mengning Ding Key Laboratory of Mesoscopic Chemistry School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China National Laboratory of Solid State Microstructures Jiangsu Key Laboratory of Artificial Functional MaterialsCollege of Engineering and Applied SciencesCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China

Theπ-πstacking is a well-recognized intermolecular interaction that is responsible for the construction of electron hopping channels in numerous conducting frameworks/***,the exact role ofπ-to-πchannels within typical single crystalline organic semiconductors remains unclear as the orientations of these molecules are diverse,and their control usually requires additional side chain groups that misrepresent the intrinsic properties of the original semiconducting ***,the construction of conduction channels with intrinsicπ-πstacking in the molecule-based device is crucial for the utilization of their unique transport characteristics and understanding of the transport *** this end,we present a molecular intercalation strategy that integrates two-dimensional layered materials with functional organic semiconductor molecules for functional molecule-based *** organic semiconductor molecules can be effectively intercalated into the van der Waals gaps of semi-metallic TaS_(2) withπ-πstacking configuration and controlled intercalant *** results show that the vertical charge transport in the stacking direction shows a tunneling-dominated mechanism that strongly depends on the molecular ***,we demonstrated a new type of molecule-based vertical transistor in which TaS_(2) andπ-πstacked organic molecules function as the electrical contact and the active channel,***/off ratios as high as 447 are achieved under electrostatic modulation in ionic liquid,comparable to the current state-of-the-art molecular *** study provides an ideal platform for probing intrinsic charge transport acrossπ-πstacked conjugated molecules and also a feasible approach for the construction of high-performance molecule-based electronic devices.

关键词： π-πstacking electrochemical intercalation organic semiconductor electrical transport tunneling field effect transistor

Hydrogen-bonded organic framework modified separator for simultaneously enhancing the safety and electrochemical performance of Ni-rich lithium-ion battery

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第9期96卷 72-78页

作者： Chengyu Han Yu Cao Ming Yang Yuhan Wang Di tang Shaojie Zhang Yiran Jia Yiming Zhang Hern Kim Fusheng Pan Zhongyi Jiang Jie sun Key Laboratory for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Science and Technology on Power Sources Laboratory Tianjin Institute of Power SourcesTianjin 300384China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China Quzhou Institute for Innovation in Resource Chemical Engineering Quzhou 324000ZhejiangChina Department of Energy Science and Technology Director Environmental Waste Recycle InstituteYongin 17058Republic of Korea School of Chemistry and Chemical Engineering Hainan UniversityHaikou 570228HainanChina

Nickel-rich layered oxide cathode(LiNi_(x)Co_(y)Mn_(1−x−y)O_(2),x>0.5,NCM)shows substantial potential for applications in longer-range electrical ***,the rapid capacity decay and serious safety concerns impede its practical *** work provides a hydrogen-bonded organic framework(HOF)modification strategy to simultaneously improve the electrochemical performance,thermal stability and incombustibility of *** cyanurate(MCA),as a low-cost and reliable flame-retardant HOF,was implemented in the separator modification layer,which can prevent the battery short circuit even at a high *** addition,the supermolecule properties of MCA provide unique physical and chemical microenvironment for regulating ion-transport behavior in *** MCA coating layer enabled the nickel-rich layered oxide cathode with a high-capacity retention of 90.3%after 300 cycles at 1.0 ***,the usage of MCA in lithium-ion batteries(LIBs)affords a simple,low-cost and efficient strategy to improve the security and service life of nickel-rich layered cathodes.

关键词： Hydrogen-bonded organic framework Modified separator Ni-richlayered oxide cathode Thermal runaway Li^(+)transference number

Flexible bidirectional pulse charging regulation achieving long-life lithium-ion batteries

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2024年第9期96卷 59-71页

作者： Xiaodong Xu Shengjin tang Xuebing Han Languang Lu Yudi Qin Jiuyu Du Yu Wu Yalun Li Chuanqiang Yu Xiaoyan sun Xuning Feng Minggao Ouyang Rocket Force University of Engineering Xi’an 710025ShaanxiChina State Key Laboratory of Intelligent Green Vehicle and Mobility School of Vehicle and MobilityTsinghua UniversityBeijing 100084China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China

Typical application scenarios,such as vehicle to grid(V2G)and frequency regulation,have imposed significant long-life demands on lithium-ion ***,we propose an advanced battery life-extension method employing bidirectional pulse charging(BPC)*** traditional constant current charging methods,BPC strategy not only achieves comparable charging speeds but also facilitates V2G frequency regulation *** significantly enhances battery cycle ampere-hour throughput and demonstrates remarkable life extension *** this interesting conclusion,adopting model identification and postmortem characterization to reveal the life regulation mechanism of BPC:it mitigates battery capacity loss attributed to loss of lithium-ion inventory(LLI)in graphite anodes by intermittently regulating the overall battery voltage and anode potential using a negative charging ***,from the perspective of internal side reaction,the life extension mechanism is further revealed as inhibition of solid electrolyte interphase(SEI)and lithium dendrite growth by regulating voltage with a bidirectional pulse current,and a semi-empirical life degradation model combining SEI and lithium dendrite growth is developed for BPC scenarios health management,the model parameters are identified by genetic algorithm with the life simulation exhibiting an accuracy exceeding 99%.This finding indicates that under typical rate conditions,adaptable BPC strategies can extend the service life of LFP battery by approximately 123%.Consequently,the developed advanced BPC strategy offers innovative perspectives and insights for the development of long-life battery applications in the future.

关键词： Lithium-ion battery Long-life regulation Bidirectional pulse charging Mechanism identification

Rapid rupture characterization for the 2023 M_(S)6.2 Jishishan earthquake

在线全文

学校读者我要写书评

暂无评论

Earthquake Research Advances 2024年第2期4卷 22-26页

作者： Xiongwei tang Rumeng Guo Yijun Zhang Kun Dai Jianqiao Xu Jiangcun Zhou Mingqiang Hou Heping sun State Key Laboratory of Geodesy and Earth's Dynamic Innovation Academy for Precision Measurement Science and TechnologyChinese Academy of SciencesWuhan430077China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing100101China Hubei Luojia Laboratory Wuhan430079China

On December 18, 2023, the M_(S)6.2 Jishishan earthquake occurred in the northeastern region of the QinghaiXizang Plateau, causing heavy casualties and property damage in Gansu and Qinghai Provinces. In this study,we integrate space imaging geodesy, finite fault inversion, and back-projection methods to decipher its rupture property, including fault geometry, coseismic slip distribution, rupture direction, and propagation speed. The results reveal that the seismogenic fault dips to the southwest at an angle of 29°. The major slip asperity is dominated by reverse slip and is concentrated within a depth range of 7–16 km, which explains the significant uplift near the epicenter observed by both the Sentinel-1 ascending and descending In SAR data. Moreover, the teleseismic array waveforms indicate a northwest propagating rupture with an overall slow rupture velocity of~1.91 km/s(AK array) or 1.01 km/s(AU array).

关键词： Jishishan earthquake Rupture property Space imaging geodesy Finite fault inversion Back-projection method

Hydrogen production from hydrolysis of NaBH_(4) solution over Co-Fe-B@g-C_(3)N_(4)/NF thin film catalyst

在线全文

学校读者我要写书评

暂无评论

Rare Metals 2024年第6期43卷 2648-2659页

作者： Yan Wang Jia-Xin Ma Jian Ren Di Zhang Feng-Yan Xu Ke Zhang Zhong-Qiu Cao Qiu-ju sun Guo-De Li Shi-Wei Wu Hong-Hui Chen College of Chemistry and Chemical Engineering Shenyang Normal UniversityShenyang 110034China Experimental Center Shenyang Normal UniversityShenyang 110034China Hunan Shande Energy Storage New Materials Research Institute Limited Company Changde 415000China

In this study,the double loaded Co-Fe-B@g-C_(3)N_(4)/NF(NF:Ni foam)thin film catalysts were prepared for the first time via chemical deposition method at room *** optimizing the reducing agent concentration to 0.9 mol·L^(-1),the as-obtained Co-Fe-B@g-C_(3)N_(4)/NF exhibited the twisted ribbon structure with more distinct three-dimensional hierarchy and the smaller particle size,showing the good catalytic property for the hydrolysis of NaBH_(4)*** H_(2)generation rate of Co-Fe-B@g-C_(3)N_(4)/NF and binary Co-B@g-C_(3)N_(4)/NF under visible light irradiation surpassed the value under natural *** apparent activation energy of Co-Fe-B@g-C_(3)N_(4)/NF(45.0 kJ·mol^(-1))under visible light irradiation was obviously reduced when compared with the natural condition(48.4 kJ·mol^(-1))and binary Co-B@g-C_(3)N_(4)/NF(60.6 kJ·mol^(-1))under visible light ***,the catalytic performance of the optimized Co-Fe-B@g-C_(3)N_(4)/NF thin film catalyst was superior to most of the reported non-noble metal and even noble metal ***,it illustrated that the catalytic H_(2)production performance of Co-Fe-B@g-C_(3)N_(4)/NF thin film was distinctly improved after the introduction of light and multicomponent recombination.

关键词： Sodium borohydride Co-Fe-B@g-C_(3)N_(4)/NF catalyst Chemical deposition Hydrogen production

Research progress on the effect of pyroptosis on the occurrence,development,invasion and metastasis of colorectal cancer

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Oncology 2024年第8期16卷 3410-3427页

作者： Xu Wang Qi-Hang Yin Lin-Lu Wan Ruo-Lan sun Gang Wang jun-Fei Gu De-Cai tang School of Traditional Chinese Medicine Nanjing University of Chinese MedicineNanjing 210023Jiangsu ProvinceChina Department of Ana and Intestine Surgery The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052Henan ProvinceChina

Pyroptosis is a type of programmed cell death mediated by gasdermines(GSDMs).The N-terminal domain of GSDMs forms pores in the plasma membrane,causing cell membrane rupture and the release of cell contents,leading to an inflammatory response and mediating *** plays an important role in inflammatory diseases and malignant *** the further study of pyroptosis,an increasing number of studies have shown that the pyroptosis pathway can regulate the tumor microenvironment and antitumor immunity of colorectal cancer and is closely related to the occurrence,development,treatment and prognosis of colorectal *** review aimed to explore the molecular mechanism of pyroptosis and the role of pyroptosis in the occurrence,development,treatment and prognosis of colorectal cancer(CRC)and to provide ideas for the clinical diagnosis and treatment of CRC.

关键词： Cell pyroptosis Tumor metastasis Colorectal cancer Clinical diagnosis Review

Cisplatin-based miRNA delivery strategy inspired by the circCPNE1/miR-330-3p pathway for oral squamous cell carcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Acta Pharmaceutica Sinica B 2024年第6期14卷 2748-2760页

作者： Hua-yang Fan Ming-da Zhao Hong-jie Jiang Zhen-wei Yu Yu-jiang Fan Xin-hua Liang Ya-ling tang Yong sun State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Oral and Maxillofacial Surgery West China Hospital of StomatologySichuan UniversityChengdu 610041China National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610065China State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Oral Pathology West China Hospital of StomatologySichuan UniversityChengdu 610041China

Circular RNAs(circRNAs)are ideal biomarkers of oral squamous cell carcinoma(OSCC)because of their highly stable closed-loop structure,and they can act as microRNA(miRNA)sponges to regulate OSCC *** analyzing clinical samples,we identified circCPNE1,a dysregulated circRNA in OSCC,and its expression level was negatively correlated with the clinical stage of OSCC ***-of-function assays revealed the tumor-suppressive effect of circCPNE1,which was then identified as a miR-330-3p ***-330-3p was recognized as a tumor promoter in multiple studies,consistent with our finding that it could promote the proliferation,migration,and invasion of OSCC *** results indicated that selective inhibition of miR-330-3p could be an effective strategy to inhibit OSCC ***,we designed cationic polylysine-cisplatin prodrugs to deliver antagomiR-330-3p(a miRNA inhibitory analog)via electrostatic interactions to form PP@miR nanoparticles(NPs).Paratumoral administration results revealed that PP@miR NPs effectively inhibited subcutaneous tumor progression and achieved partial tumor elimination(2/5),which confirmed the critical role of miR-330-3p in OSCC *** findings provide a new perspective for the development of OSCC treatments.

关键词： Oral squamous cell carcinoma CircRNA MiRNA sponge Antagomir MiRNA delivery Cisplatin-based nanoparticles Drug delivery systems Tumor elimination

Pseudomonas aeruginosa regulator PvrA binds simultaneously to multiple pseudo-palindromic sites for efficient transcription activation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Life Sciences) 2024年第5期67卷 900-912页

作者： Yibo Zhu Bingnan Luo Xingyu Mou Yingjie Song Yonghong Zhou Yongbo Luo Bo sun Youfu Luo Hong tang Zhaoming Su Rui Bao Center of Infectious Diseases Division of Infectious Diseases in State Key Laboratory of BiotherapyWest China HospitalSichuan UniversityChengdu 610041China Department of Geriatrics and National Clinical Research Center for Geriatrics West China HospitalSichuan UniversityChengdu 610041China Key Laboratory of Biodiversity and Environment on the Qinghai-Tibetan Plateau Ministry of EducationSchool of Ecology and EnvironmentTibet UniversityLhasa 850000China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201210China College of Life Science Sichuan Normal UniversityChengdu 610101China Accurate Biotechnology(Hunan)Co. LtdChangsha 410006China

Tetracycline repressor(TetR)family regulators(TFRs)are the largest group of DNA-binding transcription factors and are widely distributed in bacteria and *** play vital roles in controlling the expression of various genes and regulating diverse physiological ***,a TFR protein Pseudomonas virulence regulator A(PvrA),was identified from Pseudomonas aeruginosa as the transcriptional activator of genes involved in fatty acid utilization and bacterial ***,we show that PvrA can simultaneously bind to multiple pseudo-palindromic sites and upregulate the expression levels of target ***-electron microscopy(cryo-EM)analysis indicates the simultaneous DNA recognition mechanism of PvrA and suggests that the bound DNA fragments consist of a distorted B-DNA double *** crystal structure and functional analysis of PvrA reveal a hinge region that secures the correct domain motion for recognition of the promiscuous ***,our results showed that mutations disrupting the regulatory hinge region have differential effects on biofilm formation and pyocyanin biosynthesis,resulting in attenuated bacterial ***,these findings will improve the understanding of the relationship between the structure and function of the TetR family and provide new insights into the mechanism of regulation of *** virulence.

关键词： Pseudomonas aeruginosa transcription regulator TetR protein-structure virulence

Broadband and fabrication-tolerant 3-dB couplers with topological valley edge modes

在线全文

学校读者我要写书评

暂无评论

Light(Science & Applications) 2024年第8期13卷 1623-1630页

作者： Guo-Jing tang Xiao-Dong Chen Lu sun Chao-Heng Guo Meng-Yu Li Zhong-Tao Tian Hou-Hong Chen Hong-Wei Wang Qi-Yao sun Ying-Di Pan Xin-Tao He Yi-Kai Su Jian-Wen Dong School of Physics&State Key Laboratory of Optoelectronic Materials and Technologies Sun Yat-sen UniversityGuangzhou 510275China State Key Laboratory of Advanced Optical Communication Systems and Networks Department of Electronic EngineeringShanghai Jiao Tong UniversityShanghai 200240China

3-dB couplers,which are commonly used in photonic integrated circuits for on-chip information processing,precision measurement,and quantum computing,face challenges in achieving robust performance due to their limited 3-dB bandwidths and sensitivity to fabrication *** address this,we introduce topological physics to nanophotonics,developing a framework for topological 3-dB *** couplers exhibit broad working wavelength range and robustness against fabrication dimensional *** leveraging valley-Hall topology and mirror symmetry,the photonic-crystal-slab couplers achieve ideal 3-dB splitting characterized by a wavelength-insensitive scattering *** analysis confirms the superiority on broad bandwidth of 48 nm and robust splitting against dimensional errors of 20 *** further propose a topological interferometer for on-chip distance measurement,which also exhibits robustness against dimensional *** extension of topological principles to the fields of interferometers,may open up new possibilities for constructing robust wavelength division multiplexing,temperature-drift-insensitive sensing,and optical coherence tomography applications.

关键词： topological splitting insensitive