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Combinatorial synthesis of redox-responsive cationic polypeptoids for intracellular protein delivery application

science China Chemistry 2020年第11期63卷 1619-1625页

作者： Zhicheng Le Tong Xiao Zhijia Liu Xingliang Liu Hong Liu Lixin Liu Yongming Chen School of Materials Science and Engineering Key Laboratory of Polymeric Composite and Functional Materials of Ministry of EducationGD Research Center for Functional Biomaterials Engineering and TechnologySun Yat-sen UniversityGuangzhou 510275China

Biologics play an essential role in treating various indications from cancers to the metabolic diseases,while the current development of new classes of intracellular-acting protein drugs is still hindered because of high molecular mass and overall hydrophilicity of proteins creating extremely poor permeability across cell ***,there remains an unmet need to develop safe,potent approaches to augment intracellular protein delivery ***,we described a facile multicomponent reaction system for generating a small library of redox-responsive cationic polypeptoids with high *** co-assembly of optimized polymer with protein leads to the formation of compacted nanocomplexes with smaller size and high encapsulation efficiency,thus improving cellular internalization via the macropinocytosis and/or caveolae-mediated endocytosis *** endo-lysosomal escape,the nanocomplexes can be disassociated to efficiently release cargo proteins into the cytosol,owing to the intracellular glutathione(GSH)-triggered rapid cleavage of disulfide bonds in polymers *** a result,we screened a promising platform reagent for efficient cytosolic protein delivery application.

关键词： multicomponent reaction cationic polypeptoid redox-responsive intracellular delivery protein

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孔隙对MXene基纳米复合材料性能的影响（英文）

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science China Materials 2025年

作者：程雨杨娇匡小军程群峰 Guangxi Key Laboratory of Electrochemical and Magneto-Chemical Functional Materials College of Chemistry and Bioengineering Guilin University of Technology State Key Laboratory of Bioinspired Interfacial Materials Science School of Nano Science and Technology Suzhou Institute for Advanced ResearchUniversity of Science and Technology of China State Key Laboratory of Bioinspired Interfacial Materials Science School of Chemistry and Materials Science University of Science and Technology of China Institute of Energy Materials Science (IEMS) University of Shanghai for Science and Technology

二维过渡金属碳化物/氮化物(MXenes)具有优异的机械和电气性能,在电子、航空航天、能源等许多领域都有很好的应用前景.然而,由于应力传递效率低,将MXene纳米片组装成高性能宏观纳米复合材料仍然是一个挑战.我们发现在MXene纳米复合材料...

二维过渡金属碳化物/氮化物(MXenes)具有优异的机械和电气性能,在电子、航空航天、能源等许多领域都有很好的应用前景.然而,由于应力传递效率低,将MXene纳米片组装成高性能宏观纳米复合材料仍然是一个挑战.我们发现在MXene纳米复合材料中存在的孔隙通常会降低其宏观性能.在这篇综述中,我们系统性地讨论了孔隙对MXene纳米复合材料性能的影响,然后介绍消除孔隙的策略,包括协同界面相互作用、纳米片填充、制备工艺优化、纳米限域组装等.最后,我们展望了制备高性能MXene纳米复合材料面临的挑战和未来的发展方向.

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Hot-electron emission-driven energy recycling in transparent plasmonic electrode for organic solar cells

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InfoMat 2022年第3期4卷 121-130页

作者： Jing-De Chen Ling Li Chao-Chao Qin Hao Ren Yan-Qing Li Qing-Dong Ou Jia-Jia Guo Shi-Jie Zou Feng-Ming Xie Xianjie Liu Jian-Xin Tang Jiangsu Key Laboratory for Carbon-Based Functional Materials&Devices Institute of Functional Nano&Soft Materials(FUNSOM)Soochow UniversitySuzhouJiangsuChina College of Physics and Materials Science Henan Normal UniversityXinxiangHenanChina School of Physics and Electronic Science Ministry of Education Nanophotonics&Advanced Instrument Engineering Research CenterEast China Normal UniversityShanghaiChina Department of Materials Science and Engineering Monash UniversityClaytonVictoriaAustralia Laboratory of Organic Electronics Department of Science and Technology(ITN)Linköping UniversityNorrköpingSweden Macao Institute of Materials Science and Engineering(MIMSE) Macao University of Science and TechnologyTaipaMacao SARChina

Plasmonic metal electrodes with subwavelength nanostructures are promising for enhancing light harvesting in ***,the nonradiative damping of surface plasmon polaritons(SPPs)during coupling with sunlight results in the conversion of the excited hot-electrons to heat,which limits the absorption of light and generation of ***,an energy recycling strategy driven by hotelectron emission for recycling the SPP energy trapped in the plasmonic electrodes is proposed.A transparent silver-based plasmonic metal electrode(A-PME)with a periodic hexagonal nanopore array is constructed,which is combined with a luminescent organic emitter for radiative recombination of the injected *** to the suppressed SPP energy loss via broadband hot-electron emission,the A-PME achieves an optimized optical transmission with an average transmittance of over 80%from 380 to 1200 ***,the indium-tin-oxide-free organic solar cells yield an enhanced light harvestingwith a power conversion efficiency of 16.1%.

关键词： energy recycling hot-electron emission organic solar cells plasmonic electrode surface plasmon polariton

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Transition-Metal-Doped Biphenylene for Enhanced Co Detection: A High-Throughput First-Principles Study

SSRN

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SSRN 2024年

作者： Zhang, Jiao Cui, Li-Ying Xie, Ying Wang, Zhe Zhang, Yan-Chang Yang, Lin Zheng, Bing School of Chemistry and Materials Science Heilongjiang University Harbin150080 China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Center for Composite Materials and Structures Harbin Institute of Technology Harbin150080 China

Our study examines the CO detection capabilities of pristine biphenylene (BP) and transition-metal-doped BP (M-BP), a novel two-dimensional nano-carbon material. Despite BP’s potential in toxic gas detection, its low CO adsorption energy (Eads) of 0.134 eV limits its application. Utilizing a combined strategy of high-throughput computational screening and DFT technique, we accurately identified the ground state configurations of CO-adsorbed M-BP (M = Sc, Ti, Fe, Co, Ni, and Zn) and confirmed M doping significantly boosts BP’s CO adsorption ability, with Eads values ranging from 2.809 to 8.206 eV. This improvement is supported by ab initio molecular dynamics simulations and ionic d-p bonding interactions observed in electron localization functions, densities of state (DOS), and bond population analysis. Additionally, CO adsorption induces notable DOS curve significantly changes in the metallic M-BP systems, validating the potential of M-BP systems as suitable materials for CO detection. Notably, Ti-BP2 and Zn-BP2 show notable work function shifts after CO adsorption (0.41 and 0.36 eV, respectively), outperforming pristine BP’s 0.30 eV shift. These shifts underscore the potential of Ti-BP2 and Zn-BP2 for work function-based CO sensors, marking them as promising materials for sensitive CO detection. © 2024, The Authors. All rights reserved.

关键词： Transition metals

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Hydrogels with Dynamically Controllable Mechanics and Biochemistry for 3D Cell Culture Platforms

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Chinese Journal of Polymer science 2022年第1期40卷 38-46页

作者： Hai-Yang Wu Lei Yang Jiang-Shan Tu Jie Wang Jin-Ge Li Hong-Ying Lv Xiao-Niu Yang State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Polymer Composite Engineering Laboratory Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China Huangpu Institute of Advanced Materials Changchun Institute of Applied ChemistryChinese Academy of SciencesGuangzhou 510530China

Many cell-matrix interaction studies have proved that dynamic changes in the extracellular matrix(ECM)are crucial to maintain cellular properties and ***,developing materials that can recapitulate the dynamic attributes of the ECM is highly desired for threedimensional(3 D)cell culture *** this end,we sought to develop a hydrogel system that would enable dynamic and reversible turning of its mechanical and biochemical properties,thus facilitating the control of cell culture to imitate the natural ***,a hydrogel with dynamic mechanics and a biochemistry based on an addition-fragmentation chain transfer(AFCT)reaction was ***-modified hyaluronic acid(HA)and allyl sulfide-modifiedε-poly-L-lysine(EPL)were synthesized to form hydrogels,which were non-swellable and *** reversible modulus of the hydrogel was first achieved through the AFCT reaction;the modulus can also be regulated stepwise by changing the dose of UVA *** patterning of fluorescent markers in the hydrogel was also ***,this dynamically controllable hydrogel has great potential as a 3 D cell culture platform for tissue engineering applications.

关键词： Hydrogel Addition-fragmentation chain transfer Dynamic mechanics Controllable biochemistry 3D cell culture platform

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平面/体异质结结构全色倍增型有机光电探测器

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science China Materials 2023年第3期66卷 1172-1179页

作者：虢德超杨丽清李骥何果郑景博陶思哲杨德志王林格 Agafonov Vadim 马东阁 Center for Aggregation-Induced Emission Institute of Polymer Optoelectronic Materials and DevicesGuangdong Provincial Key Laboratory of Luminescence from Molecular AggregatesGuangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional MaterialsState Key Laboratory of Luminescent Materials and DevicesSouth China University of TechnologyGuangzhou 510640China South China Advanced Institute for Soft Matter Science and Technology School of Emergent Soft MatterGuangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and DevicesSouth China University of TechnologyGuangzhou 510640China Moscow Institute of Physics and Technology Dolgoprudny 141700Russia

宽带有机光电探测器(OPDs)可以集成到各种可穿戴设备中,在健康监测等领域显示出巨大的应用潜力.这里,我们以酞菁铅(PbPc)和富勒烯(C70)小分子分别作为给体和受体,基于MoO_(3)俘获电子辅助空穴隧道注入的机制实现了高性能宽带倍增型有机... 详细信息

宽带有机光电探测器(OPDs)可以集成到各种可穿戴设备中,在健康监测等领域显示出巨大的应用潜力.这里,我们以酞菁铅(PbPc)和富勒烯(C70)小分子分别作为给体和受体,基于MoO_(3)俘获电子辅助空穴隧道注入的机制实现了高性能宽带倍增型有机光电探测器(PM-OPDs).为了控制PbPc分子的晶相结构,我们分别制备了PbPc:C70体异质结(BHJ)和PbPc/C70平面异质结(PHJ)器件.可以看出,PHJ器件表现出更强的近红外吸收特性,即更有利于PbPc分子形成三斜相结构.我们进一步使用具有吸收互补特性的材料(PbPc和SubPc)作为有源层,采用PHJ/BHJ混合异质结结构,制备了在300–1000 nm范围内平坦的全色PM-OPDs.在-8 V反向偏压下,制得的全色PM-OPDs在整个光谱响应范围内的外量子效率都超过1000%.最后,我们在聚对苯二甲酸乙二醇酯基板上制备了柔性全色PM-OPDs,并成功地实现了人体脉搏信号的检测.本文通过设计器件结构和选择合适的材料,为获得高性能全色PM-OPDs提供了一种新策略.

关键词：有机光电探测器光谱响应范围外量子效率异质结结构反向偏压有源层聚对苯二甲酸乙二醇酯可穿戴设备

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Carrier mobility tuning of MoS_(2) by strain engineering in CVD growth process

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Nano Research 2021年第7期14卷 2314-2320页

作者： Yongfeng Chen Wenjie Deng Xiaoqing Chen Yi Wu Jianwei Shi Jingying Zheng Feihong Chu Beiyun Liu Boxing An Congya You Liying Jiao Xinfeng Liu Yongzhe Zhang College of Materials Science and Engineering Key Laboratory of Advanced Functional Materials of Education Ministry of ChinaBeijing Key Laboratory of Microstructure and Property of Advanced MaterialsBeijing University of TechnologyBeijing 100124China Key Laboratory of Organic Optoelectronics and Molecular Engineering of the Ministry of Education Department of ChemistryTsinghua UniversityBeijing 100084China CAS Key Laboratory of Standardization and Measurement for Nanotechnology CAS Center for Excellence in NanoscienceNational Center for Nanoscience and TechnologyBeijing 100190China

Strain engineering is proposed to be an effective technology to tune the properties of two-dimensional(2D)transition metal dichalcogenides(TMDCs).Conventional strain engineering techniques(e.g.,mechanical bending,heating)cannot conserve strain due to their dependence on external action,which thereby limits the application in *** addition,the theoretically predicted strain-induced tuning of electrical performance of TMDCs has not been experimentally proved ***,a facile but effective approach is proposed to retain and tune the biaxial tensile strain in monolayer MoS_(2) by adjusting the process of the chemical vapor deposition(CVD).To prove the feasibility of this method,the strain formation model of CVD grown MoS_(2) is proposed which is supported by the calculated strain dependence of band gap via the density functional theory(DFT).Next,the electrical properties tuning of strained monolayer MoS_(2) is demonstrated in experiment,where the carrier mobility of MoS_(2) was increased by two orders(~0.15 to~23 cm^(2)·V^(−1)·s^(−1)).The proposed pathway of strain preservation and regulation will open up the optics application of strain engineering and the fabrication of high performance electronic devices in 2D materials.

关键词： MoS_(2) CVD carrier mobility strain engineering 2D materials

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Improved ultraviolet resistant through the natural antioxidants in efficient perovskite photovoltaics

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Current Applied Physics 2025年 77卷 123-130页

作者： Xueyuan Li Yaru Du Niqian Du Shanshan Du Tianxiao Liu Kaikai Liu Zhiyong Liu School of Physic Henan Normal University Xinxiang 453007 China Henan Key Laboratory of Advanced Semiconductor & Functional Device Integration Xinxiang 453007 China School of Physics and Engineering Henan University of Science and Technology Luoyang 471023 China

Perovskite solar cells (PSCs) have attracted much attention due to their excellent photoelectric properties. However, the instability of perovskites limits its development, which resulted by degradation derived from oxygen and ultraviolet light. Herein, the contain conjugated double bonds and natural antioxidant layer provided by β-carotene and astaxanthin could constitute ligand bonds with Pb 2+ in the form of Lewis acid-base interactions and eliminate UV-induced free radicals during photoaging process, which passivate the surface defects and improve the crystal quality of perovskite films, improving operational stability of PSCs. The optimized PSCs arrive a champion power conversion efficiency (PCE) of 23.56 %, maintaining 88 % of the original PCE after continuous operating 140 h under UV illumination state and 89 % of the original PCE after 2400 h of operation in air environment condition. This work provides a general strategy for improving the stability of PSCs.

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Flexible and highly-sensitive pressure sensor based on controllably oxidized MXene

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InfoMat 2022年第9期4卷 60-71页

作者： Yanan Ma Yongfa Cheng Jian Wang Si Fu Mengjun Zhou Yue Yang Baowen Li Xin Zhang Ce-Wen Nan State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Center of Smart Materials and Devices&International School of Materials Science and EngineeringWuhan University of TechnologyWuhanChina School of Mathematics Physics and Optoelectronic EngineeringHubei University of Automotive TechnologyShiyanChina Center for Nanoscale Characterization&Devices(CNCD) Wuhan National Laboratory for Optoelectronics(WNLO)Huazhong University of Science and Technology(HUST)WuhanChina Information Materials and Intelligent Sensing Laboratory of Anhui Province Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationInstitutes of Physical Science and Information TechnologyAnhui UniversityHefeiChina State Key Lab of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijingChina

Conductive Ti_(3)C_(2)T_(x)MXenes have been widely investigated for the construction of flexible and highly-sensitive pressure *** the inevitable oxidation of solution-processed MXene has been recognized,the effect of the irreversible oxidation of MXene on its electrical conductivity and sensing properties is yet to be ***,we construct a highly-sensitive and degradable piezoresistive pressure sensor by coating Ti_(3)C_(2)T_(x)MXene flakes with different degrees of in situ oxidation onto paper substrates using the dipping-drying *** situ oxidation can tune the intrinsic resistance and expand the interlayer distance of MXene *** partially oxidized MXene-based piezoresistive pressure sensor exhibits a high sensitivity of 28.43 kPa^(-1),which is greater than those of pristine MXene,over-oxidized MXene,and state-of-the-art paper-based pressure ***,these sensors exhibit a short response time of 98.3 ms,good durability over 5000 measurement cycles,and a low force detection limit of 0.8 ***,MXene-based sensing elements are easily degraded and environmentally *** MXene-based pressure sensor shows promise for practical applications in tracking body movements,sports coaching,remote health monitoring,and human–computer interactions.

关键词： adjustable sensitivity in situ oxidation interlayer distance MXene pressure sensor

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Phase-stable wide-bandgap perovskites enabled by suppressed ion migration

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Journal of Energy Chemistry 2024年第9期96卷 120-128页

作者： Zhiyu Gao Yu Zhu Jingwei Zhu Cong Chen Zongjin Yi Yi Luo Yuliang Xu Kai Wu Tianshu Ma Fangfang Cao Zijun Chen Fang Yao Juncheng Wang Wenwu Wang Chuanxiao Xiao Hao Huang Hongxiang Li Qianqian Lin Pei Cheng Changlei Wang Xia Hao Guanggen Zeng Dewei Zhao College of Materials Science and Engineering&Institute of New Energy and Low-Carbon Technology&Engineering Research Center of Alternative Energy Materials and Devices Ministry of EducationSichuan UniversityChengdu 610065SichuanChina School of Optoelectronic Science and Engineering&Collaborative Innovation Center of Suzhou Nano Science and Technology Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province&Key Lab of Modern Optical Technologies of Education Ministry of ChinaSoochow UniversitySuzhou 215006JiangsuChina Ningbo Institute of Materials Technology and Engineering Chinese Academy of SciencesNingbo 315201ZhejiangChina Ningbo New Materials Testing and Evaluation Center Co.Ltd Ningbo 315201ZhejiangChina State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structure&School of Resources Environment and MaterialsGuangxi UniversityNanning 530004GuangxiChina Key Lab of Artificial Micro-and Nano-Structures of Ministry of Education of China School of Physics and TechnologyWuhan UniversityWuhan 430072HubeiChina College of Polymer Science and Engineering State Key Laboratory of Polymer Materials EngineeringSichuan UniversityChengdu 610065SichuanChina

Wide-bandgap(>1.7 eV)perovskites suffer from severe light-induced phase segregation due to high bromine content,causing irreversible damage to devices ***,the strategies of suppressing photoinduced phase segregation and related mechanisms have not been fully ***,we report a new passivation agent 4-aminotetrahydrothiopyran hydrochloride(4-ATpHCl)with multifunctional groups for the interface treatment of a 1.77-eV wide-bandgap perovskite film.4-ATpH^(+)impeded halogen ion migration by anchoring on the perovskite surface,leading to the inhibition of phase segregation and thus the passivation of defects,which is ascribed to the interaction of 4-ATpH^(+)with perovskite and the formation of low-dimensional ***,the champion device achieved an efficiency of 19.32%with an open-circuit voltage(V_(OC))of 1.314 V and a fill factor of 83.32%.Moreover,4-ATpHCl modified device exhibited significant improved stability as compared with control *** target device maintained 80%of its initial efficiency after 519 h of maximum power output(MPP)tracking under 1 sun illumination,however,the control device showed a rapid decrease in efficiency after 267 ***,an efficiency of 27.38%of the champion 4-terminal all-perovskite tandem solar cell was achieved by mechanically stacking this wide-bandgap top subcell with a 1.25-eV low-bandgap perovskite bottom subcell.

关键词： Wide-bandgap perovskite Phase segregation lon migration Interface post-treatment All-perovskite tandems

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