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| 1 | Controllable synthesis of highly crystallized mesoporous TiO2/WO3 heterojunctions for acetone gas sensing显示文摘Mesoporous semiconducting metal oxides(SMOs)heterojunctions are appealing sensors for gas detecting.However,due to the different hydrolysis and condensation mechanism of every metal precursor and the contradiction between high crystallinity and high surface area,the synthesis of mesoporous SMOs heterojunctions with highly o rdered mesostructures,highly crystallized frameworks,and high surface area remains a huge challenge.In this work,we develop a novel'acid-base pair'adjusted solvent evaporation induced self-assembly(EISA)strategy to prepare highly crystallized ordered mesoporous TiO2/WO3(OM-TiO2/WO3)heterojunctions.The WCl6 and titanium isopropoxide(TIPO)are used as the precursors,respectively,which function as the'acid-base pair',enabling the coassembly with the structure directing agent(PEO-b-PS)into highly ordered meso structures.In addition,PEO-b-PS can be converted to rigid carbon which can protect the meso structures from collapse during the crystallization process.The resultant OM-TiO2/WO3 heterojunctions possess primitive cubic mesostructures,large pore size(~21.1 nm),highly crystalline frameworks and surface area(~98 m2/g).As a sensor for acetone,the obtained OM-TiO2/WO3 show excellent re sponse/recovery perfo rmance(3 s/5 s),good linear dependence,repeatability,selectivity,and long-term stability(35 days). | Changyao Wang Yuhui Li Pengpeng Qiu Linlin Duan Wei Bi Yan Chen Dingyi Guo Yupu Liu Wei Luo Yonghui Deng | 2020 | Chinese Chemical Letters2020，31，5： | 4 |
| 2 | Role of thioredoxin-interacting protein in mediating endothelial dysfunction in hypertension显示文摘Excessive oxidative stress is a major causative factor of endothelial dysfunction in hypertension.As an endogenous pro-oxidant,thioredoxin-interacting protein(TXNIP)contributes to oxidative damage in various tissues.The present study aimed to investigate the role of TXNIP in mediating endothelial dysfunction in hypertension.In vivo,an experimental model of acquired hypertension was established with two-kidney,one-clip(2K1C)surgery.The expression of TXNIP in the vascular endothelial cells of multiple vessels was significantly increased in hypertensive rats compared with sham-operated rats.Resveratrol,a TXNIP inhibitor,suppressed vascular oxidative damage and increased the expression and activity of eNOS in the aorta of hypertensive rats.Notably,impaired endothelium-dependent vasodilation was effectively improved by TXNIP inhibition in hypertensive rats.In vitro,we observed that Ang II increased the expression of TXNIP in primary human aortic endothelial cells(HAECs)and that TXNIP knockdown by RNA interference alleviated cellular oxidative stress damage and mitigated the impaired eNOS activation and intracellular nitric oxide(NO)production observed in Ang Il-treated HAECs.However,inhibiting thioredoxin(TRX)with PX-12 completely blunted the protective effect of silencing TXNIP.In addition,TXNIP knockdown facilitated TRX expression and promoted TRX nuclear translocation to further activate AP1 and REF1.TRX overexpressi on exhibited favorable effects on eNOS/NO homeostasis in Ang 11-treated HAECs.Thus,TXNIP contributes to oxidative stress and endothelial dysfunction in hypertension,and these effects are dependent on the antioxidant capacity of TRX,suggesting that targeting TXNIP may be a novel strategy for antihypertensive therapy. | Ruiyu Wang Yongzheng Guo Lingjiao Li Minghao Luo Linqian Peng Dingyi Lv Zhe Cheng Qian Xue Liang Wang Jing Huang | 2022 | Genes & Diseases2022，9，3： | 1 |
| 3 | Structural insights into the membrane microdomain organization by SPFH family proteins显示文摘The lateral segregation of membrane constituents into functional microdomains,conceptually known as lipid raft,is a universal organization principle for cellular membranes in both prokaryotes and eukaryotes.The widespread Stomatin,Prohibitin,Flotillin,and HflK/C(SPFH)family proteins are enriched in functional membrane microdomains at various subcellular locations,and therefore were hypothesized to play a scaffolding role in microdomain formation.In addition,many SPFH proteins are also implicated in highly specific processes occurring on the membrane.However,none of these functions is understood at the molecular level.Here we report the structure of a supramolecular complex that is isolated from bacterial membrane microdomains and contains two SPFH proteins(HflK and HflC)and a membrane-anchored AAA+protease FtsH.HflK and HflC form a circular 24-mer assembly,featuring a laterally segregated membrane microdomain(20 nm in diameter)bordered by transmembrane domains of HflK/C and a completely sealed periplasmic vault.Four FtsH hexamers are embedded inside this microdomain through interactions with the inner surface of the vault.These observations provide a mechanistic explanation for the role of HflK/C and their mitochondrial homologs prohibitins in regulating membrane-bound AAA+proteases,and suggest a general model for the organization and functionalization of membrane microdomains by SPFH proteins. | Chengying Ma Chengkun Wang Dingyi Luo Lu Yan Wenxian Yang Ningning Li Ning Gao | 2022 | Cell Research2022，32，2： | 0 |
| 4 | Designable heteronanocrystals via interface redox reaction显示文摘The synergistic interaction of different components in heteronanocrystals induces interfacial phenomena and novel functionalities.Nonetheless,effective technologies to design and fabricate heteronanocrystals with materials on demand are still missing.Rich heterostructures in a copper patina are known to form at room temperature and under atmospheric pressure.The redox process of copper tarnish inspired the discovery of a simple strategy to achieve heteronanocrystals that contained elements from group 3-11 and group 14-16.The interface redox-induced method is self-regulating at ambient conditions and applicable for metal,semiconductor,and dielectric materials.The enhanced interface bonding endows the heteronanocrystals with outstanding stability and catalytic performance,while the modular approach enables the design and fabrication of heteronanocrystals with intended materials to meet different purposes. | Zhihua Li Yang Li Nannan Luo Yuanyuan Qie Dingyi Yang Guowei Cao Yuxiang Liu Ying Fu Na Li Wen Hu Min Zhang Rusen Yang Bo Tang | 2023 | Nano Research2023，16，4： | 0 |
| 5 | The application of the Internet of Things to animal ecology显示文摘For ecologists,understanding the reaction of animals to environmental changes is critical.Using networked sensor technology to measure wildlife and environmental parameters can provide accurate,real-time and comprehensive data for monitoring,research and conservation of wildlife.This paper reviews:(i)conventional detection technology;(ii)concepts and applications of the Internet of Things(IoT)in animal ecology;and(iii)the advantages and disadvantages of IoT.The current theoretical limits of IoT in animal ecology are also discussed.Although IoT offers a new direction in animal ecological research,it still needs to be further explored and developed as a theoretical system and applied to the appropriate scientific frameworks for understanding animal ecology. | Songtao GUO Min QIANG Xiaorui LUAN Pengfei XU Gang HE Xiaoyan YIN Luo XI Xuelin JIN Jianbin SHAO Xiaojiang CHEN Dingyi FANG Baoguo LI | 2015 | Integrative Zoology2015，10，6： | 0 |
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