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MXene‑Graphene Composites:A Perspective on Biomedical Potentials

Nano-Micro Letters 2022年第8期14卷 112-123页

作者： Ebrahim Mostafavi Siavash Iravani Stanford Cardiovascular Institute Stanford University School of MedicineStanfordCA 94305USA Department of Medicine Stanford University School of MedicineStanfordCA 94305USA Faculty of Pharmacy and Pharmaceutical Sciences Isfahan University of Medical SciencesIsfahanIran

MXenes,transition metal carbides and nitrides with graphene-like structures,have received considerable attention since their first discovery.On the other hand,Graphene has been extensively used in biomedical and medicinal applications.MXene and graphene,both as promising candidates of two-dimensional materials,have shown to possess high potential in future biomedical applications due to their unique physicochemical properties such as superior electrical conductivity,high biocompatibility,large surface area,optical and magnetic features,and extraordinary thermal and mechanical properties.These special structural,functional,and biological characteristics suggest that the hybrid/composite structure of MXene and graphene would be able to meet many unmet needs in different fields;particularly in medicine and biomedical engineering,where high-performance mechanical,electrical,thermal,magnetic,and optical requirements are necessary.However,the hybridization and surface functionalization should be further explored to obtain biocompatible composites/platforms with unique physicochemical properties,high stability,and multifunctionality.In addition,toxicological and long-term biosafety assessments and clinical translation evaluations should be given high priority in research.Although very limited studies have revealed the excellent potentials of MXene/graphene in biomedicine,the next steps should be toward the extensive research and detailed analysis in optimizing the properties and improving their functionality with a clinical and industrial outlook.Herein,different synthesis/fabrication methods and performances of MXene/graphene composites are discussed for potential biomedical applications.The potential toxicological effects of these composites on human cells and tissues are also covered,and future perspectives toward more successful translational applications are presented.The current state-of-the-art biotechnological advances in the use of MXene-Graphene composites,as well as their developmental challenges and future p

关键词： Graphene MXene Composites hybrid structures Biocompatibility Cancer theranostics Biomedical engineering

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Recent developments of infrared photodetectors with lowdimensional inorganic nanostructures

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Nano Research 2022年第2期15卷 805-817页

作者： Xin Hu Jianghong Wu Mingzhou Wu Junqing Hu College of Health Science and Environmental Engineering Shenzhen Technology UniversityShenzhen 518118China

Low-dimensional inorganic nanostructures such as quantum dots as well as one-and two-dimensional nanostructures are widely studied and already used in high-performance infrared photodetectors.These structures feature large surface-to-volume ratios,tunable light absorption,and electron-limiting effects.This article reviews the state-of-the-art research of low-dimensional inorganic nanostructures and their application for infrared photodetection.Thanks to nano-structuring,a narrow bandgap,hybrid systems,surface-plasmon resonance,and doping,many common semiconductors have the potential to be used for infrared detection.The basic approaches towards infrared detection are summarized.Furthermore,a selection of very important and special nanostructured materials and their remarkable infrared-detection properties are introduced(e.g.,black phosphorus,graphene-based,MoX_(2)-based,Ⅲ-Ⅶ group).Each section in this review describes the corresponding photosensitive properties in detail.The article concludes with an outlook of anticipated future developments in the field.

关键词： infrared photodetectors low-dimensional inorganic nanostructures hybrid structures

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Micro/nano multiscale reinforcing strategies toward extreme high-temperature applications:Take carbon/carbon composites and their coatings as the examples

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Journal of Materials Science & Technology 2022年第1期96卷 31-68页

作者： Qiangang Fu Pei Zhang Lei Zhuang Lei Zhou Jiaping Zhang Jie Wang Xianghui Hou Ralf Riedel Hejun Li State Key Laboratory of Solidification Processing Shaanxi Key Laboratory of Fiber Reinforced Light Composite MaterialsCarbon/Carbon Composites Research CenterNorthwestern Polytechnical UniversityXi’an 710072China School of Materials Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Faculty of Engineering University of NottinghamUniversity ParkNottingham NG72RDUnited Kingdom Institut für Materialwissenschaft Technische Universität DarmstadtOtto-Berndt-Straße 3Darmstadt D-64287Germany

Carbon fiber reinforced carbon composites(C/Cs),are the most promising high-temperature materials and could be widely applied in aerospace and nucleation fields,owing to their superior performances.However,C/Cs are very susceptible to destructive oxidation and thus fail at elevated temperatures.Though matrix modification and coating technologies with Si-based and ultra-high temperature ceramics(UHTCs)are valid to enhance the oxidation/ablation resistance of C/Cs,it’s not sufficient to satisfy the increasing practical applications,due to the inherent brittleness of ceramics,mismatch issues between coatings and C/C substrates,and the fact that carbonaceous matrices are easily prone to high-temperature oxidation.To effectively solve the aforementioned problems,micro/nano multiscale reinforcing strategies have been developed for C/Cs and/or the coatings over the past two decades,to fabricate C/Cs with high strength and excellent high-temperature stability.This review is to systematically summarize the most recent major and important advancements in some micro/nano multiscale strategies,including nanoparticles,nanowires,carbon nanotubes/fibers,whiskers,graphene,ceramic fibers and hybrid micro/nano structures,for C/Cs and/or the coatings,to achieve high-temperature oxidation/ablation-resistant C/Cs.Finally,this review is concluded with an outlook of major unsolved problems,challenges to be met and future research advice for C/Cs with excellent comprehensive mechanical-thermal performance.It’s hoped that a better understanding of this review will be of high scientific and industrial interest,since it provides unusual and feasible new ideas to develop potential and practical C/Cs with improved high-temperature mechanical and oxidation/ablation-resistant properties.

关键词： Carbon/carbon composites Micro/nano multiscale reinforcing strategies Oxidation Ablation Erosion hybrid structures

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Magnetic and electric Purcell enhancement in a hybrid metal-dielectric nanostructure

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Chinese Optics Letters 2023年第10期21卷 125-132页

作者：单凌霄刘旗马筠贾雅利林海吕国伟龚旗煌古英 State Key Laboratory for Mesoscopic Physics Department of PhysicsPeking UniversityBeijing 100871China Frontiers Science Center for Nano-optoelectronics&Collaborative Innovation Center of Quantum Matter&Beijing Academy of Quantum Information Sciences Peking UniversityBeijing 100871China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China Peking University Yangtze Delta Institute of Optoelectronics Nantong 226010China Hefei National Laboratory Hefei 230088China

hybrid metal-dielectric structures combine the advantages of both metal and dielectric materials,enabling high-confined but low-loss magnetic and electric resonances through deliberate arrangements.However,their potential for enhancing magnetic emission has yet to be fully explored.Here,we study the magnetic and electric Purcell enhancement supported by a hybrid structure composed of a dielectric nanoring and a silver nanorod.This structure enables low Ohmic loss and highlyconfined field under the mode hybridization of magnetic resonances on a nanoring and electric resonances on a nanorod in the optical communication band.Thus,the 60-fold magnetic Purcell enhancement and 45-fold electric Purcell enhancement can be achieved.Over 90%of the radiation can be transmitted to the far field.For the sufficiently large Purcell enhancement,the position of emitter has a tolerance of several tens of nanometers,which brings convenience to experimental fabrications.Moreover,an array formed by this hybrid nanostructure can further enhance the magnetic Purcell factors.The system provides a feasible option to selectively excite magnetic and electric emission in integrated photonic circuits.It may also facilitate brighter magnetic emission sources and light-emitting metasurfaces with a more straightforward design.

关键词： Purcell effect magnetic emission hybrid structures

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Nickel sulfide-based energy storage materials for high-performance electrochemical capacitors

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Rare Metals 2021年第2期40卷 353-373页

作者： Ramyakrishna Pothu Ravi Bolagam Qing-Hong Wang Wei Ni Jin-Feng Cai Xiao-Xin Peng Yue-Zhan Feng Jian-Min Ma School of Physics and Electronics Hunan UniversityChangsha410082China School of Chemistry and Materials Science Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional MaterialsJiangsu Normal UniversityXuzhou221116China Institute for Advanced Study Chengdu UniversityChengdu610106China Faculty of Technology University of OuluOulu90014Finland Yiyang Wanjingyuan Electronics Co. Ltd.Yiyang413000China Key Laboratory of Materials Processing and Mold(Zhengzhou University) Ministry of EducationZhengzhou UniversityZhengzhou450002China

Supercapacitors are favorable energy storage devices in the field of emerging energy technologies with high power density,excellent cycle stability and environmental benignity.The performance of supercapacitors is definitively influenced by the electrode materials.Nickel sulfides have attracted extensive interest in recent years due to their specific merits for supercapacitor application.However,the distribution of electrochemically active sites critically limits their electrochemical performance.Notable improvements have been achieved through various strategies such as building synergetic structures with conductive substrates,enhancing the active sites by nanocrystallization and constructing nanohybrid architecture with other electrode materials.This article overviews the progress in the reasonable design and preparation of nickel sulfides and their composite electrodes combined with various bifunctional electric double-layer capacitor(EDLC)-based substances(e.g.,graphene,hollow carbon)and pseudocapacitive materials(e.g.,transition-metal oxides,sulfides,nitrides).Moreover,the corresponding electrochemical performances,reaction mechanisms,emerging challenges and future perspectives are briefly discussed and summarized.

关键词： Supercapacitors Nickel sulfides hybrid structures Energy storage materials Pseudocapacitance

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Emerging Trends in Automotive Lightweighting through Novel Composite Materials

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Materials Sciences and Applications 2016年第1期7卷 26-38页

作者： Muhammad Pervaiz Suhara Panthapulakkal Birat KC Mohini Sain Jimi Tjong Center for Biocomposites and Biomaterials Processing Faculty of Forestry University of Toronto Toronto Canada Center of Excellence for Advanced Materials Research King Abdulaziz University Jeddah KSA Faculty of Forestry University of Toronto Toronto Canada Powertrain Engineering Research and Development Centre Ford PERDC Engineering Windsor Canada

Owing to unprecedented climate change issues in recent times, global automotive industry is striving hard in developing novel functional materials to improve vehicle’s fuel efficiency. It is believed that more than a quarter of all combined greenhouse gas emissions (GHG) are associated with road transport vehicles. All these facts in association with heightened consumer awareness and energy security issues have led to automotive lightweighting as a major research theme across the globe. Almost all North American and European original equipment manufacturers (OEMs) related to automotive industry have chalked out ambitious weight reduction plans in response to stricter environmental regulations. This review entails main motives and current legislation which has prompted major OEMs to have drastic measures in bringing down vehicle weight to suggested limits. Also discussed are recent advances in developing advanced composites, and cellulose-enabled light weight automotive composites with special focus on research efforts of Center for Biocomposites and Biomaterials Processing (CBBP), University of Toronto, Canada.

关键词： Automotive Lightweighting Biocomposite Cellulose hybrid structures

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Syntheses and Characterization of Cyclic BODIPY-Porphyrin hybrids

Syntheses and Characterization of Cyclic BODIPY-Porphyrin Hy...

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中国化学会第五届卟啉与酞菁学术研讨会

作者： Xia Liu Lei Xu Mingbo Zhou Ling Xu Bangshao Yin Jianxin Song Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education) Key Laboratory of Application and Assemble of Organic Functional Molecules of Hunan Province Hunan Normal University

Porphyrins and boron dipyrrincompounds have received much attention inthe field of nonlinear optical materialsand solar cells models.However,directly linked cyclic porphyrin-BODIPY hybrids are rather rare.To our knowledge,these cyclic porphyrin-BODIPY hybrids are of significant importance as they might be suitable for studying host-guest chemistry.As an extension of our previous studies,we focus onthe preparationof diverse dipyrromethane bridged cyclic porphyrin hybridsviacondensation of aldehyde.Thesetypical structures of dimers1 Ni and 2 Nihave been revealed by X-ray diffraction analysis(Fig.1).

关键词： BODIPY hybrid structures condensation

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