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An interfacial robust and entire self-healing ionogel-elastomer hybrid for elastic electronics enables discretionary assembly and reconfiguration

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Science China chemistry 2024年第4期67卷 1316-1323页

作者： Lei Yang Lijie Sun Hongfei Huang Rasoul Esmaeely Neisiany Zhengwei You State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional MaterialsCollege of Materials Science and EngineeringDonghua UniversityResearch Base of Textile Materials for Flexible Electronics and Biomedical Applications(China Textile Engineering Society)Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative MedicineShanghai 201620China department of Polymer Engineering Hakim Sabzevari UniversitySabzevar ***Iran Biotechnology centre Silesian University of TechnologyGliwice 44-100Poland

Inspired by the multi-layer architecture of mammal skins,interfacial robust,stretchable,and entirely healable gel-elastomer hybrids hold great potential in diverse fields including biomedical devices,wearable electrical devices,and soft ***,existing gel-elastomer hybrids have numerous limitations including low interfacial bonding toughness,complex and time-consuming preparation process,unhealable,and ***,we propose a simple and general chemical strategy through the interfacial dynamic bonding between gel and elastomer to simultaneously address the abovementioned *** covalent bonds readily and repeatably covalent bonding ionogel and elastomer(interfacial toughness:390 J m^(-2)),endowed the hybrids with entire self-healing features like skin and enabled discretionary assembly and ***,this strategy resolved the troublesome contradiction between interfacial stability and *** advantage of the aforementioned features,we readily constructed a multi-module,self-healing,self-powered,and realtime monitoring of personal status integrated elastic electronics,which could simply reconfigure the output signal of elastic electronics into an input signal of the devices-braille keyboard.

关键词： ionogel elastomer interface bonding self-healing dynamic covalent bond

MXene-Based Elastomer Mimetic StretchableSensors: Design, Properties, and Applications

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Nano-Micro Letters 2024年第7期16卷 295-342页

作者： Poushali Das Parham Khoshbakht Marvi Sayan Ganguly Xiaowu(Shirley)Tang Bo Wang Seshasai Srinivasan Amin Reza Rajabzadeh Andreas Rosenkranz School of Biomedical Engineering McMaster University1280 Main Street WestHamiltonON L8S 4L8Canada department of chemistry and Waterloo Institute for Nanotechnology(WIN) University of Waterloo200 University Ave WestWaterlooONCanada centre for Eye and Vision Research(CEVR) 17W Hong Kong Science ParkShatinHong KongPeople’s Republic of China Chair of Functional Materials Department of Materials Science and EngineeringSaarland UniversitySaarbruckenGermany W Booth School of Engineering Practice and Technology McMaster University1280 Main Street WestHamiltonON L8S 4L7Canada department for Chemical Engineering Biotechnology and MaterialsUniversity of ChileSantiagoChile

Flexible sensors based on MXene-polymer composites are highly prospective for next-generation wearable electronics used in human-machine *** of the motivating factors behind the progress of flexible sensors is the steady arrival of new conductive ***,a new family of 2D nanomaterials,have been draw-ing attention since the last decade due to their high electronic conduc-tivity,processability,mechanical robustness and chemical *** this review,we encompass the fabrication of MXene-based polymeric nanocomposites,their structure-property relationship,and applications in the flexible sensor ***,our discussion is not only lim-ited to sensor design,their mechanism,and various modes of sensing platform,but also their future perspective and market throughout the *** our article,we intend to fortify the bond between flexible matrices and MXenes thus promoting the swift advancement of flexible MXene-sensors for wearable technologies.

关键词： Flexible sensor 2D nanomaterials MXene Wearable and conductive Applications

Advanced strategies for combinational immunotherapy of cancer based on polymeric nanomedicines

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BMEMat(BioMedical Engineering Materials) 2024年第2期2卷 7-33页

作者： Kaisheng You Qi Wang Mohamed Syazwan Osman Dongpyo Kim Qian Li Chao Feng Lei Wang Kuikun Yang School of Life Science and Technology School of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbinChina State Key Laboratory for Organic electronics and Information Display&Institute of Advanced Materials Nanjing University of Posts&TelecommunicationsNanjingChina EMZI-UiTM Nanoparticles Colloids&Interface Industrial Research Laboratory(NANO-CORE) Centre for Chemical Engineering StudiesUniversiti Teknologi MARACawangan Pulau PinangMalaysia department of Chemical Engineering Center for Intelligent Microprocess of Pharmaceutical Synthesis(CIMPS)Pohang University of Science and Technology(POSTECH)PohangRepublic of Korea department of Neurology The Second Affiliated Hospital of Harbin Medical UniversityHarbinChina College of Marine Life Science Ocean University of ChinaQingdaoChina

Although immunotherapy has revolutionized cancer therapy by providing efficient tumor growth suppression,long-term protection from recurrence as well as minimized side effects,the low response rate significantly limits the clinical application of immunotherapy in board types of solid *** order to improve the therapeutic efficacy,conventional therapies including radiotherapy,chemotherapy,phototherapy and chemodynamic therapy are employed to combine with immunotherapy to elicit stronger antitumor immune *** nanomedicines are frequently utilized in synergistic immunotherapy and other therapies owing to their tunable physiochemical properties,high drug loading capacity,ease of modification and low *** elaborate design and tailored properties,polymer nanomedicines can significantly enhance antitumor efficacy by enhancing tumor specificity,priming immune cells and amplifying immune responses in ***,until now,there is no review solely dedicated to the comprehensive development of polymer-based platforms for combinational immunotherapy of can***,this paper summarizes latest advances in the design,fabrication and application of polymer nanomedicines in combinational immunotherapy and traditional antitumor strategies including radiotherapy,chemotherapy,photothermal therapy,photodynamic therapy and other *** outlook on the trajectory and potential challenges of polymer nanomedicines in bridging the gap between immunotherapy and conventional therapies is also discussed.

关键词： drug delivery immunotherapy polymer nanomedicine synergistic therapy

Cement-inspired readily fabricated water-strengthened polymeric materials

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Science China chemistry 2024年第10期67卷 3458-3467页

作者： Han Zuo Luzhi Zhang Huixia Xuan Shijia Gu Xinxin Xu Rasoul Esmaeely Neisiany Qilin Wu Zhengwei You State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Institute of Functional MaterialsCollege of Materials Science and EngineeringDonghua UniversityResearch Base of Textile Materials for Flexible Electronics and Biomedical Applications(China Textile Engineering Society)Shanghai Key Laboratory of Lightweight CompositeShanghai Engineering Research Center of Nano-Biomaterials and Regenerative MedicineShanghai 201620China Zhejiang Hexin Science and Technology Co. Ltd.Jiaxing 314033China Biotechnology centre Silesian University of TechnologyKrzywoustego 844-100 GliwicePoland department of Polymer Engineering Hakim Sabzevari UniversitySabzevar ***Iran

Polymeric materials have penetrated all aspects of society and play an irreplaceable ***,there is an inherent contradiction between their mechanical properties and processing ***,inspired by cement,a crucial construction material renowned for its excellent fabricating behavior and self-strengthening properties,we have developed dynamic crosslinked poly(oxime-urethane)(CPOU).The synthesized CPOU showed good self-healing ability and 3D printability owing to the dynamic dissociation and re-association of oxime-carbamate *** objects printed through the fused deposition modeling technique were able to be readily assembled into complex architectures through intrinsic ***,the self-strengthening of CPOU was successfully realized through multiple-step tandem *** dissociation of dynamic oxime-carbamate bonds produced–NCO groups,which reacted with the surrounding water to form polar urea bonds in the polymer network,leading to an increase in the tensile strength of CPOU from 11.95 to 19.37 *** work not only develops the polymers with combined self-healing,facile fabricating,and self-strengthening properties but also provides a new molecular strategy to modulate the properties of polymers,which could be potentially applied in diverse areas.

关键词： dynamic bonds 3D printing self-strengthening self-healing

Molecular engineering of Y-series acceptors for nonfullerene organic solar cells

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SusMat 2022年第5期2卷 591-606页

作者： Qiao He Petr Ufimkin Filip Aniés Xiantao Hu Panagiota Kafourou Martina Rimmele Charlotte L.Rapley Bowen Ding department of chemistry and centre for Processable electronics Imperial College LondonLondonUK

The power conversion efficiencies(PCEs)of single-junction organic solar cells(OSCs)have surpassed 19%,owing to the emerging Y-series nonfullerene acceptors(NFAs).Undoubtedly,the power and flexibility of chemical design has been a strong driver for this rapid efficiency improvement in the OSC *** the course of the past 3 years,a variety of modifications have been made to the structure of the Y6 acceptor,and a large number of Y-series NFAs have been reported to further improve ***,we present our insights into the rationale behind the Y6 acceptor and discuss the design principles toward high-performance Y-series *** is clear that structural modifications through choice of heteroatom,soluble chains,πspacers,central cores,and end groups alter the material characteristics and properties,contributing to distinctive photovoltaic ***,we analyze various design strategies of Y-series-containing materials,including polymerized small-molecule acceptors(PSMA),non-fused-ring acceptors(NFRA),and all-fused-ring acceptors(AFRA).This review is expected to be of value in providing effective molecular design strategies for high-performance NFAs in future innovations.

关键词： molecular engineering narrow bandgap nonfullerene organic solar cell Y-series acceptor

Improving the operational stability of perovskite solar cells with cesium-doped graphene oxide interlayer

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Journal of Energy chemistry 2024年第9期96卷 483-490页

作者： Masaud Almalki Katerina Anagnostou Konstantinos Rogdakis Felix T.Eickemeyer Mostafa Othman Minas M.Stylianakis Dimitris Tsikritzis Anwar Q.Alanazi Nikolaos Tzoganakis Lukas Pfeifer Rita Therisod Xiaoliang Mo Christian M.Wolff Aïcha Hessler-Wyser Shaik M.Zakeeruddin Hong Zhang Emmanuel Kymakis Michael Grätzel Laboratory of Photonics and Interfaces École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland department of Electrical and Computer Engineering Hellenic Mediterranean UniversityHeraklionCrete 71410Greece Institute of Electrical and Microengineering(IEM)Photovoltaics and Thin-Film electronics Laboratory(PV-Lab) École Polytechnique Fédérale de Lausanne(EPFL)Neuchâtel 2000Switzerland department of Nursing Faculty of Health SciencesHellenic Mediterranean UniversityCrete 71410Greece centre Interdisciplinaire de Microscopie Electronique École Polytechnique Fédérale de Lausanne(EPFL)Lausanne 1015Switzerland Future Energy Technology Institute King Abdulaziz City for Science and Technology(KACST)P.O.Box 6086Riyadh 11442Saudi Arabia State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronics and PerceptionInstitute of OptoelectronicsDepartment of Materials ScienceFudan UniversityShanghai 200433China

Perovskite solar cells(PSCs)have made great advances in terms of power conversion efficiency(PCE),yet their subpar stability continues to hinder their *** interface between the perovskite layer and the charge-carrier transporting layers plays a crucial role in undermining the stability of *** this work,we propose a strategy to stabilize high-performance PSCs with PCE over 23%by introducing a cesium-doped graphene oxide(GO-Cs)as an interlayer between the perovskite and hole-transporting *** GO-Cs treated PSCs exhibit excellent operational stability with a projected T80(the time where the device PCE reduces to 80%of its initial value)of 2143 h of operation at the maximum powering point under one sun illumination.

关键词： Perovskite solar cells Doped graphene oxide Graphene related material Long-term operational stability

Operando monitoring of dendrite formation in lithium metal batteries via ultrasensitive tilted fiber Bragg grating sensors

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Light(Science & Applications) 2024年第1期13卷 153-166页

作者： Xile Han Hai Zhong Kaiwei Li Xiaobin Xue Wen Wu Nan Hu Xihong Lu Jiaqiang Huang Gaozhi Xiao Yaohua Mai Tuan Guo Institute of Photonics Technology Jinan UniversityGuangzhou 510632China Institute of New Energy Technology College of Information Science and TechnologyJinan UniversityGuangzhou 510632China Key Laboratory of Bionic Engineering(Ministry of Education) Jilin UniversityChangchun 130022China The Key Lab of Low-Carbon chemistry&Energy Conservation of Guangdong Province School of ChemistrySun Yat-Sen UniversityGuangzhou 510275China Sustainable Energy and Environment Thrust The Hong Kong University of Science and Technology(Guangzhou)NanshaGuangzhouGuangdong 511400China Advanced electronics and Photonics Research centre National Research Council of CanadaOttawa K1A OR6Canada

Lithium(Li)dendrite growth significantly deteriorates the performance and shortens the operation life of lithium metal *** the intricate dynamics of surface localized and rapid mass transport at the electrolyte–electrode interface of lithium metal is essential for the understanding of the dendrite growth process,and the evaluation of the solutions mitigating the dendrite growth *** we demonstrate an approach based on an ultrasensitive tilted fiber Bragg grating(TFBG)sensor which is inserted close to the electrode surface in a working lithium metal battery,without disturbing its *** to the superfine optical resonances of the TFBG,in situ and rapid monitoring of mass transport kinetics and lithium dendrite growth at the nanoscale interface of lithium anodes have been *** correlations between the performance of different natural/artificial solid electrolyte interphases(SEIs)and the time-resolved optical responses have been observed and quantified,enabling us to link the nanoscale ion and SEI behavior with the macroscopic battery *** new operando tool will provide additional capabilities for parametrization of the batteries’electrochemistry and help identify the optimal interphases of lithium metal batteries to enhance battery performance and its safety.

关键词： battery lithium electrolyte

Phytochemically Functionalized Cu and Ag Nanoparticles Embedded in MWCNTs for Enhanced Antimicrobial and Anticancer Properties

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Nano-Micro Letters 2016年第2期8卷 120-130页

作者： S.Yallappa J.Manjanna B.L.Dhananjaya U.Vishwanatha B.Ravishankar H.Gururaj P.Niranjana B.S.Hungund department of Industrial chemistry Kuvempu University department of chemistry Rani Channamma University Toxicology and Drug Discovery centre for Emerging Technologies Jain University SDM centre for Research in Ayurveda and Allied Sciences department of electronics Kuvempu University department of Biochemistry Kuvempu University department of Biotechnology B.V.B.College of Engineering & Technology

Nanomedicine is an emerging field concerned with the use of precision engineered nanomaterials, which leads to the development of novel remedial and diagnostic modalities for human use. In this study, Cu(NO_3)_2 and Ag NO_3 precursors were reduced to copper nanoparticles(Cu NPs) and silver nanoparticles(Ag NPs) using Terminalia arjuna bark extracts under microwave irradiation in the presence of well-dispersed multi-walled carbon nanotubes(MWCNTs) in aqueous medium. The formation of Cu NPs or Ag NPs and their functionalization with MWCNTs via bioactive molecules of plant extract were evidenced from UV–Vis spectra, XRD, FTIR, FESEM, EDX, and TEM images. The phytochemically functionalized Cu-MWCNTs and Ag-MWCNTs nanomaterials showed enhanced biocide activity, and the inhibitory activity for bacteria was higher than that of fungus. Furthermore, these biohybrid nanomaterials are non-toxic to normal epithelial cells(Vero), whereas they are highly toxic for tested human cancer cells of MDA-MB-231, He La, Si Ha, and Hep-G2. The cell viability was found to decrease with the increasing dose from 10 to 50 lg m L^(-1), as well as incubation time from 24 to 72 h. For instance, the cell viability was found to be *91 % for normal Vero cells and *76 % for cancer cells for lower dose of 10 lg m L^(-1).

关键词： Cu-MWCNTs Ag-MWCNTs Terminalia arjuna bark extract Antimicrobial activity Anticancer activity

Anion-induced N-doping of naphthalenediimide polymer semiconductor in organic thin-film transistors

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npj Flexible electronics 2018年第1期2卷 90-96页

作者： Yang Han Zhuping Fei Yen-Hung Lin Jaime Martin Floriana Tuna Thomas DAnthopoulos Martin Heeney Dept.chemistry and centre for plastic electronics Imperial College LondonExhibition RdLondon SW72AZUK Dept.Physics and centre for plastic electronics Imperial College LondonExhibition RdLondon SW72AZUK Dept.of Materials Imperial College LondonExhibition RdLondon SW72AZUK School of chemistry and Photon Science Institute University of ManchesterOxford RdManchester M139PLUK Division of Physical Sciences and Engineering King Abdullah University of Science and TechnologyThuwal 23955-6900Saudi Arabia

Molecular doping is an important strategy to improve the charge transport properties of organic semiconductors in various electronic *** to p-type dopants,the development of n-type dopants is especially challenging due to poor dopant stability against atmospheric *** this article,we report the n-doping of the milestone naphthalenediimide-based conjugated polymer P(NDI2OD-T2)in organic thin film transistor devices by soluble anion *** addition of the dopants resulted in the formation of stable radical anions in thin films,as confirmed by EPR *** tuning the dopant concentration via simple solution mixing,the transistor parameters could be readily *** the contact resistance between the electrodes and the semiconducting polymer could be significantly reduced,which resulted in the transistor behaviour approaching the desirable gate voltage-independent *** hysteresis was also observed,thanks to the trap filling by the *** optimal doping concentrations the channel on-current was increased several fold whilst the on/off ratio was simultaneously increased by around one order of *** doping with soluble organic salts appears to be a promising route to improve the charge transport properties of n-type organic semiconductors.

关键词： dopant tuning doping