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Suppression of current-induced membrane discharge of bipolar membranes by regulating ion crossover transport

Journal of Energy Chemistry 2024年第9期96卷 387-395页

作者： Tingting Yu Haolan Tao Jingkun Li Cheng Lian Honglai Liu State Key Laboratory of Chemical Engineering Shanghai Engineering Research Center of Hierarchical NanomaterialsSchool of Chemical EngineeringEast China University of Science and TechnologyShanghai 200237China School of Chemistry and Molecular Engineering East China University of Science and TechnologyShanghai 200237China

Bipolar membranes(BPMs)exhibit the unique capability to regulate the operating environment of electrochemical system through the water dissociation-combination ***,the industrial utilization of BPMs is limited by instability and serious energy *** current-induced membrane discharge(CIMd)at high-current conditions has a negative influence on the performance of anion-exchange membranes,but the underlying ion transport mechanisms in the BPMs remain ***,the CIMd-coupled Poisson-Nernst-Planck(PNP)equations are used to explore the ion transport mechanisms in the BPMs for both reverse bias and forward bias at neutral and acid-base *** is demonstrated that the CIMd effect in the reverse-bias mode can be suppressed by enhancing the diffusive transport of salt counter-ions(Na^(+)and Cl^(−))into the BPMs,and that in the forward-bias mode with acid-base electrolytes can be suppressed by matching the transport rate of water counter-ions(H_(3)O^(+)and OH^(−)).Suppressing the CIMd can promote the water dissociation in the reverse-bias mode,as well as overcome the plateau of limiting current density and reduce the interfacial blockage of salt co-ions(Cl^(−))in the anion-exchange layer in the forward-bias mode with acid-base *** work highlights the importance of regulating ion crossover transport on improving the performance of BPMs.

关键词： Bipolar membranes Current-induced membrane discharge Salt ion crossover diffusion-migration-reaction process

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Through-polymer,via technology-enabled,flexible,lightweight,and integrated devices for implantable neural probes

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Microsystems & Nanoengineering 2024年第2期10卷 279-291页

作者： Cunkai Zhou Ye Tian Gen Li Yifei Ye Lusha Gao Jiazhi Li Ziwei Liu Haoyang Su Yunxiao Lu Meng Li Zhitao Zhou Xiaoling Wei Lunming Qin Tiger H.Tao Liuyang Sun College of Electronics and Information Engineering Shanghai University of Electric PowerShanghaiChina 2020 X-Lab Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaiChina School of Graduate Study University of Chinese Academy of SciencesBeijingChina State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of SciencesShanghaiChina center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijingChina School of Physical Science and Technology ShanghaiTech UniversityShanghaiChina center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghaiChina Neuroxess Co. Ltd.(Jiangxi)NanchangJiangxiChina Guangdong Institute of Intelligence Science and Technology HengqinZhuhaiGuangdongChina Tianqiao and Chrissy Chen Institute for Translational research ShanghaiChina

In implantable electrophysiological recording systems,the headstage typically comprises neural probes that interface with brain tissue and integrated circuit chips for signal *** advancements in MEMS and CMOS technology have significantly improved these components,their interconnection still relies on conventional printed circuit boards and sophisticated *** conventional approach adds considerable weight and volume to the package,especially for high channel count *** address this issue,we developed a through-polymer via(TPV)method inspired by the through-silicon via(TSV)technique in advanced three-dimensional *** innovation enables the vertical integration of flexible probes,amplifier chips,and PCBs,realizing a flexible,lightweight,and integrated device(FLId).The total weight of the FLIdis only 25%that of its conventional counterparts relying on adapters,which significantly increased the activity levels of animals wearing the FLIds to nearly match the levels of control animals without ***,by incorporating a platinum-iridium alloy as the top layer material for electrical contact,the FLId realizes exceptional electrical performance,enabling in vivo measurements of both local field potentials and individual neuron action *** findings showcase the potential of FLIds in scaling up implantable neural recording systems and mark a significant advancement in the field of neurotechnology.

关键词： alloy neural recording

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Targeting deubiquitinase OTUB1 protects vascular smooth muscle cells in atherosclerosis by modulating PdGFrβ

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Frontiers of Medicine 2024年第3期18卷 465-483页

作者： Fei Xu Han Chen Changyi Zhou Tongtong Zang rui Wang Shutong Shen Chaofu Li Yue Yu Zhiqiang Pei Li Shen Juying Qian Junbo Ge department of Cardiology and Laboratory of Heart Valve disease West China HospitalSichuan UniversityChengdu610041China department of Cardiology Zhongshan HospitalFudan UniversityResearch Unit of Cardiovascular Techniques and DevicesChinese Academy of Medical SciencesShanghai200032China shanghai Institute of Cardiovascular diseases Shanghai200032China National Clinical research center for Interventional Medicine&shanghai Clinical research center for Interventional Medicine(19MC1910300) Shanghai200032China

Atherosclerosis is a chronic artery disease that causes various types of cardiovascular *** smooth muscle cells(VSMCs),the main components of atherosclerotic plaque,switch from contractile to synthetic phenotypes during *** is crucial in regulating VSMC phenotypes in atherosclerosis,and it can be reversely regulated by ***,the specific effects of deubiquitinases on atherosclerosis have not been thoroughly *** this study,rNAi screening in human aortic smooth muscle cells was performed to explore the effects of OTU family deubiquitinases,which revealed that silencing OTUB1 inhibited PdGF-BB-stimulated VSMC phenotype *** in vivo studies using Apoe−/−mice revealed that knockdown of OTUB1 in VSMCs alleviated atherosclerosis plaque burden in the advanced stage and led to a stable plaque ***,VSMC proliferation and migration upon PdGF-BB stimulation could be inhibited by silencing OTUB1 in *** rNA-sequencing data indicated that knocking down OTUB1 influenced VSMC differentiation,adhesion,and *** spectrometry of ubiquitinated protein confirmed that proteins related to cell growth and migration were differentially ***,we found that OTUB1 recognized the K707 residue ubiquitylation of PdGFrβwith its catalytic triad,thereby reducing the K48-linked ubiquitylation of PdGFrβ.Inhibiting OTUB1 in VSMCs could promote PdGFrβdegradation via the ubiquitin–proteasome pathway,so it was beneficial in preventing VSMCs’phenotype *** findings revealed that knocking down OTUB1 ameliorated VSMCs’phenotype switch and atherosclerosis progression,indicating that OTUB1 could be a valuable translational therapeutic target in the future.

关键词： atherosclerosis vascular smooth muscle cell ubiquitylation deubiquitinase OTUB1 PdGFrβ

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Clinical application value of long non-coding rNAs signatures of genomic instability in predicting prognosis of hepatocellular carcinoma

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2386-2392页

作者： Xiao-Wen Xing Xiao Huang Wei-Peng Li Ming-Ke Wang Ji-Shun Yang department of disease Control and Prevention Naval Medical CenterNaval Medical UniversityShanghai 200052China Medical Care center Naval Medical UniversityShanghai 200052China

Hepatocellular carcinoma(HCC)presents challenges due to its high recurrence and metastasis rates and poor *** current clinical diagnostic and prognostic indicators exist,their accuracy remains imperfect due to their biol-ogical ***,there is a quest to identify improved biomarkers for HCC diagnosis and *** combining long non-coding rNA(lncrNA)expression and somatic mutations,duan et al identified five representative lncrNAs from 88 lncrNAs related to genomic instability(GI),forming a GI-derived lncrNA signature(LncSig).This signature outperforms previously re-ported LncSig and TP53 mutations in predicting HCC *** this editorial,we comprehensively evaluate the clinical application value of such prognostic evaluation model based on sequencing technology in terms of cost,time,and ***,we provide an overview of various prognostic models for HCC,aiding in a comprehensive understanding of research progress in pro-gnostic evaluation methods.

关键词： Hepatocellular carcinoma Prognosis Prognostic model Biomarkers Genomic instability long non-coding rNA Clinical application value

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Understanding and addressing the challenges of online gambling addiction in China's Mainland

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General Psychiatry 2024年第2期37卷 315-318页

作者： Gangliang Zhong Jiang du Min Zhao shanghai Mental Health center Shanghai Jiao Tong University School of MedicineShanghaiChina shanghai Key Laboratory of Psychotic disorders Shanghai Mental Health CenterShanghaiChina CAS center for Excellence in Brain Science and Intelligence Technology(CEBSIT) Chinese Academy of SciencesShanghaiChina

Introduction Gambling in China has a long and evolving history,from ancient court cockfighting to preliberation casinos with games like baccarat.1 Over time,gambling in China has evolved to include a wide range of activities,including gaming machines,online gambling and commercial *** being declared illegal and regulated after the establishment of the People’s republic of China,gambling remains deeply ingrained in Chinese culture.

关键词： mainland fighting spite

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Genetic mutation of Tas2r104/Tas2r105/Tas2r114 cluster leads to a loss of taste perception to denatonium benzoate and cucurbitacin B

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Animal Models and Experimental Medicine 2024年第3期7卷 324-336页

作者： Bowen Niu Lingling Liu Qian Gao Meng-Min Zhu Lixiang Chen Xiu-Hua Peng Boying Qin Xiaohui Zhou Feng Li department of Laboratory Animal Science Shanghai Public Health Clinical CenterFudan UniversityShanghaiChina department of Biology College of Life SciencesShanghai Normal UniversityShanghaiPeople's Republic of China

Background:Bitter taste receptors(Tas2rs)are generally considered to sense various bitter compounds to escape the intake of toxic *** taste receptors have been found to widely express in extraoral tissues and have important physiological functions outside the gustatory system in ***:To investigate the physiological functions of the bitter taste receptor cluster Tas2r106/Tas2r104/Tas2r105/Tas2r114 in lingual and extraoral tissues,multiple Tas2rs mutant mice and Gnat3 were produced using CrISPr/Cas9 gene-editing technique.A mixture containing Cas9 and sgrNA mrNAs for Tas2rs and Gnat3 gene was microinjected into the cytoplasm of the ***,T7EN1 assays and sequencing were used to screen genetic mutation at the target sites in founder *** real-time polymerase chain reaction(qrT-PCr)and immunostaining were used to study the expression level of taste signaling cascade and bitter taste receptor in taste *** to taste substance was also studied using twobottle preference ***:We successfully produced several Tas2rs and Gnat3 mutant mice using the CrISPr/Cas9 *** results showed that the expression of GNAT3 and PLCB2 was not altered in Tas2rs mutant *** qrT-PCr results revealed the changed expression profile of m Tas2rs gene in taste buds of these mutant *** two-bottle preference tests,these mutant mice eliminate responses to cycloheximide due to genetic mutation of *** addition,these mutant mice showed a loss of taste perception to quinine dihydrochloride,denatonium benzoate,and cucurbitacin B(CuB).Gnat3-mediated taste receptor and its signal pathway contribute to CuB ***:These findings implied that these mutant mice would be a valuable means to understand the biological functions of TAS2rs in extraoral tissues and investigate bitter compound-induced responses mediated by these TAS2rs in many extraoral tissues.

关键词： bitter taste receptor CrISPr/Cas9 genetic mutation two-bottle preference test type 2 taste receptors(Tas2rs)

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resting-state brain network remodeling after different nerve reconstruction surgeries:a functional magnetic resonance imaging study in brachial plexus injury rats

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Neural regeneration research 2025年第5期20卷 1495-1504页

作者： Yunting Xiang Xiangxin Xing Xuyun Hua Yuwen Zhang Xin Xue Jiajia Wu Mouxiong Zheng He Wang Jianguang Xu School of rehabilitation Science Shanghai University of Traditional Chinese MedicineShanghaiChina Engineering research center of Traditional Chinese Medicine Intelligent rehabilitation Ministry of EducationShanghaiChina department of rehabilitation Medicine Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina department of Traumatology and Orthopedics Yueyang Hospital of Integrated Traditional Chinese and Western MedicineShanghai University of Traditional Chinese MedicineShanghaiChina Institute of Science and Technology for Brain-Inspired Intelligence Fudan UniversityShanghaiChina Key Laboratory of Computational Neuroscience and Brain-Inspired Intelligence(Fudan University) Ministry of EducationShanghaiChina Human Phenome Institute Fudan UniversityShanghaiChina

distinct brain remodeling has been found after different nerve reconstruction strategies,including motor representation of the affected ***,differences among reconstruction strategies at the brain network level have not been *** study aimed to explore intranetwork changes related to altered peripheral neural pathways after different nerve reconstruction surgeries,including nerve repair,endto-end nerve transfer,and end-to-side nerve ***–dawley rats underwent complete left brachial plexus transection and were divided into four equal groups of eight:no nerve repair,grafted nerve repair,phrenic nerve end-to-end transfer,and end-to-side transfer with a graft sutured to the anterior upper ***-state brain functional magnetic resonance imaging was obtained 7 months after *** independent component analysis algorithm was utilized to identify group-level network components of interest and extract resting-state functional connectivity values of each voxel within the *** in intra-network resting-state functional connectivity were compared among the *** muscle reinnervation was assessed by behavioral observation(elbow flexion)and *** results showed that alterations in the sensorimotor and interoception networks were mostly related to changes in the peripheral neural *** repair was related to enhanced connectivity within the sensorimotor network,while end-to-side nerve transfer might be more beneficial for restoring control over the affected limb by the original motor *** thalamic-cortical pathway was enhanced within the interoception network after nerve repair and end-to-end nerve *** areas related to cognition and emotion were enhanced after end-to-side nerve *** study revealed important brain networks related to different nerve *** networks may be potential targets for enhancing motor recovery.

关键词： brain functional networks end-to-end nerve transfer end-to-side nerve transfer independent component analysis nerve repair peripheral plexus injury resting-state functional connectivity

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Piezoelectric film promotes skin wound healing with enhanced collagen deposition and vessels regeneration via upregulation of PI3K/AKT

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Nano research 2024年第8期17卷 7461-7478页

作者： Qi Xu Wufei dai Peizhe Li Qinglin Li Zhen Gao Xiaoli Wu Wei Liu Wenbo Wang department of Plastic and reconstructive Surgery Shanghai Key Laboratory of Tissue EngineeringShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China research Institute of Plastic Surgery Shandong Second Medical UniversityWeifang 261000China department of Surgery Air Force Medical CenterPLABeijing 100142China

Skin wounds are common in accidental injuries,and the intricacies of wound repair are closely linked to endogenous electric *** stimulation plays a pivotal role in the restorative processes of skin injuries,encompassing collagen deposition,angiogenesis,inflammation,and *** electrical stimulation therapy replicates and enhances the effects of endogenous wound electric fields by applying an external electric field to the wound site,thereby promoting skin wound *** this study,we developed a self-powered repetitive mechanical impacts-electrical stimulation(rMI-ES)system utilizing a BaTiO_(3)/polydimethylsiloxane(PdMS)piezoelectric composite *** to conventional electrical stimulation devices,the fabricated piezoelectric composite film efficiently harvests energy from the pressure applied by the stimulation device and the tensile force occurring during natural rat *** results demonstrated that piezoelectric stimulation generated by the composite membrane expedited the cell cycle,promoting fibroblast ***,piezoelectric stimulation induced favorable changes in fibroblast gene expression,including increased expression of transforming growth factor-β1(TGF-β1),connective tissue growth factor(CTGF),collagen 1,collagen 3,vascular endothelial growth factor(VEGF),and alpha-smooth muscle actin(α-SMA),while reducing interleukin-6(IL-6)*** analysis revealed that piezoelectric stimulation may induce fibroblast migration,proliferation,and collagen expression by influencing PI3K/AKT serine/threonine kinase(AKT)*** confirmation through the addition of the PI3K inhibitor LY294002 validated that piezoelectric stimulation can regulate the repair process after skin injury through the ***,in vivo results demonstrated that the electric field at the wound site effectively promoted wound healing,reduced inflammation,and stimulated collagen deposition and ne

关键词： BaTiO3/polydimethylsiloxane(PdMS)nano-composite membrane piezoelectrical stimulation skin wound healing collagen deposition PI3K/AKT serine/threonine kinase(AKT)signaling pathway

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Stereodivergent Benzylic Substitution of racemic Secondary Benzyl Esters Enabled by Pd/Cu dual Catalysis

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CCS Chemistry 2024年第10期6卷 2452-2464页

作者： Youbin Peng Guanlin Li Chongyu Han Yicong Luo Xiaohong Huo Wanbin Zhang shanghai Key Laboratory of Molecular Engineering of Chiral drugs Frontiers Science Center for Transformative MoleculesSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong UniversityShanghai 200240

Transition-metal-catalyzed asymmetric benzylic substitution of racemic benzyl esters is an efficient and straightforward route towards the construction of benzylic stereocenters but remains a challenge,due to the difficulty encountered in the suppression ofβ–H elimination and asymmetric ***,we successfully developed a highly diastereo-and enantioselective benzylic substitution of racemic 1-(aryl)alkyl esters with aldimine esters enabled by Pd/Cu dual *** array of enantioenrichedα-benzyl substitutedα-amino acids containing vicinal stereocenters were prepared with high levels of diastereo-and enantioselectivities(up to>20:1 dr and>99%ee)and the practicability of the products was further illustrated via their diverse *** dynamic kinetic asymmetric transformation process of the racemic benzyl esters was investigated experimentally and by computational studies.

关键词： amino acids asymmetric catalysis benzylic substitution bimetallic catalysis stereodivergent synthesis

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discovery of a potent and highly selective inhibitor of SIrT6 against pancreatic cancer metastasis in vivo

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1302-1316页

作者： Xinyuan Xu Qian Zhang Xufeng Wang Jing Jin Chengwei Wu Li Feng Xiuyan Yang Mingzhu Zhao Yingyi Chen Shaoyong Lu Zhen Zheng Xiaobing Lan Yi Wang Yan Zheng Xuefeng Lu Qiufen Zhang Jian Zhang State Key Laboratory of Medical Genomics National Research Center for Translational Medicine at ShanghaiRuijin HospitalShanghai Jiao Tong University School of MedicineShanghai 200025China Medicinal Chemistry and Bioinformaticscenter Shanghai Jiao Tong University School of MedicineShanghai 200025China department of General Surgery Huashan HospitalCancer Metastasis InstituteFudan UniversityShanghai 200040China Institute of Immunology and the CAS Key Laboratory of Innate Immunity and Chronic disease School of Basic Medicine and Medical CenterUniversity of Science and Technology of ChinaHefei 230026China department of Assisted reproduction Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200011China College of Pharmacy Ningxia Medical UniversityYinchuan 750004China department of Pancreatic Surgery Shanghai General HospitalShanghai Key Laboratory of Pancreatic DiseaseInstitute of Pancreatic DiseaseShanghai Jiao Tong University School of MedicineShanghai 200080China

Pancreatic cancer,one of the most aggressive malignancies,has no effective treatment due to the lack of targets and drugs related to tumour ***6 can promote the migration of pancreatic cancer and could be a potential target for antimetastasis of pancreatic ***,highly selective and potency SIrT6 inhibitor that can be used in vivo is yet to be ***,we developed a noveSIrT6 allosteric inhibitor,compound 11e,with maximal inhibitory potency and an IC_(50) value of 0.98±0.13μmol/***,compound 11e exhibited significant selectivity against other histone deacetylases(HAdC1-11 and SIrT1-3)at concentrations up to 100μmol/*** allosteric site and the molecular mechanism of inhibition were extensively elucidated by cocrystal complex structure and dynamic structural ***,we confirmed the antimetastatic function of such inhibitors in four pancreatic cancer cell lines as well as in two mouse models of pancreatic cancer liver *** our knowledge,this is the first study to reveal the in vivo effects of SIrT6 inhibitors on liver metastatic pancreatic *** not only provides a promising lead compound for subsequent inhibitor developmentargeting SIrT6 but also provides a potential approach to address the challenge of metastasis in pancreatic cancer.

关键词： SIrT6 Inhibitor Allosteric Selectivity Cocrystal Pancreatic cancer metastasis

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