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Repurposing organic semiconducting nanomaterials to accelerate clinical translation of NIR-II fluorescence imaging

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Nano Research 2023年第4期16卷 5140-5154页

作者： Xiaoming Hu Fengwei Sun Caijun Zhu Zhen Yang Wei Huang strait Laboratory of flexible electronics(SLoFE) Strait Institute of Flexible Electronics(SIFEFuture Technologies)Fujian Normal UniversityFuzhou 350117China Jiangxi Key Laboratory of Nanobiomaterials School of Materials Science and EngineeringEast China Jiaotong UniversityNanchang 330013China Frontiers Science Center for flexible electronics(FSCFE) MIIT Key Laboratory of Flexible Electronics(KLoFE)Northwestern Polytechnical UniversityXi’an 710072China

Optical imaging possesses important implications for early disease diagnosis,timely disease treatment,and basic medical as well as biological *** with the traditionary near-infrared(NIR-I)window(650-950 nm)optical imaging,the emerging second near-infrared(NIR-II)window optical imaging technology owns the great superiorities of non-invasiveness,nonionizing radiation,and real-time dynamic imaging with the low biological interference,can significantly improve the tissue penetration depth and detection sensitivity,thus expecting to achieve accurate and precise diagnosis of major *** by the conspicuous superiorities,an increasing number of versatile NIR-II fluorophores have been legitimately designed and engineered for precisely deep-tissue mapping-mediated theranostics of life-threatening *** semiconducting nanomaterials(OSNs)are derived from organic conjugated molecules withπ-electron delocalized skeletons,which show greatly preponderant prospects in the biomedicine field due to the excellent photoelectric property,tunable energy bands,and fine *** this review,the superiorities of NIR-II fluorescence imaging using OSNs for brilliant visualization various of diseases,including tongue cancer,ovarian cancer,osteosarcoma,bacteria or pathogens infection,kidney dysfunction,rheumatoid arthritis,liver injury,and cerebrovascular function,are emphatically ***,the reasonable prospects and persistent efforts for repurposing OSNs to facilitate the clinical translation of NIR-II fluorescence phototheranostics are outlined.

关键词： organic semiconducting nanomaterials second near-infrared(NIR-II)fluorescence imaging malignant tumor organic injury infections

In situ synthesis of SnPS_(3)/Ti_(3)C_(2)T_(x) hybrid anode via molten salt etching method for superior sodium-ion batteries

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Journal of Energy Chemistry 2024年第11期98卷 623-633页

作者： Longsheng Zhong Ming Yue Wenhu Xie Hongxiao He Yanhe Xiao Baochang Cheng Liangxu Lin Shuijin Lei School of Physics and Materials Science Nanchang UniversityNanchang 330031JiangxiChina strait institute of flexible electronics(sife Future Technologies)Fujian Normal UniversityFuzhou 350017FujianChina

Recently,SnPS_(3) has gained attention as an impressive sodium-ion battery anode material because of its significant theoretical specific capacity derived from the conversion-alloying reaction ***,its practical applicability is restricted by insufficient rate ability,and severe capacity loss due to inadequate electrical conductivity and dramatic volume *** by the electrochemical enhancement effect of MXene substrates and the innovative Lewis acidic etching for MXene preparation,SnPS_(3)/Ti_(3)C_(2)T_(x) MXene(T=-Cl and-O) is constructed by synchronously phospho-sulfurizing Sn/Ti_(3)C_(2)T_(x) *** from the boosted Na^(+) diffusion and electron transfer rates,as well as the mitigated stress expansion,the synthesized SnPS_(3/)Ti_(3)C_(2)T_(x) composite demonstrates enhanced rate capability(647 mA h g^(-1) at 10 A g^(-1)) alongside satisfactory long-term cycling stability(capacity retention of 94.6% after 2000 cycles at 5 A g^(-1)).Importantly,the assembled sodium-ion full cell delivers an impressive capacity retention of 97.7% after undergoing 1500 cycles at 2 A g^(-1).Moreover,the sodium storage mechanism of the SnPS_(3/)Ti_(3)C_(2)T_(x) electrode is elucidated through in-situ and ex-situ *** work proposes a novel approach to ameliorate the energy storage performance of thiophosphites by facile in-situ construction of composites with MXene.

关键词： Thiophosphites SnPS_(3) Ti_(3)C_(2)T_(x)MXene Lewis acidic etching Sodium-ion batteries

Two-dimensional Conductive Metal-Organic Framework Nanowire Arrays for Highly Performed Soft Electrochemical Actuators

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材料导报 2021年第9期35卷 9001-9002页

作者： ZHAO Ruoqing WU Hao WEI Yuan WANG Xuewen Frontiers Science Center for flexible electronics(FSCFE)&Shaanxi institute of flexible electronics(sife) Northwestern Polytechnical UniversityXi’an 710072China

Fig.1(a)Schematic illustration of the fabrication of a Ni-CAT NWAs/CNF hybrid membrane by the in situ hydrothermal growth of Ni-CAT NWAs on CNF;SEM images of(b)the pristine CNF nanomembrane and(c)Ni-CAT NWAs/CNF,and(d)size distribution statistics of the diameter of Ni-CAT NWAs/CNF;schematic illustrations of(e)the fabrication procedure for the Ni-CAT NWAs/CNF-based actuator,(f)Ni-CAT NWAs/CNF electrode surfaces and Ni-CAT along the c-axis(Color codes:O,red spheres;C,gray spheres;and Ni,blue spheres);(g)actuation performance of the Ni-CAT NWAs/CNF based actuator The demand for high-performance low-voltage driven electromechanical actuators is growing because of their potential applications,such as in soft robotics,artificial muscles,biomimetic flying insects,and micro/nano-electromechanical systems[1].Among these actuators,ionic-polymer metal composite actuators(IPMCs)are promising as they are capable of large actuation deformation under low operation voltages(only a few volts),and they operate best in a humid environment[2].However,although extensive efforts have been made in past decades,developing high-capacitance electrode materials that improve the performance of IPMCs is challenging.

关键词： composite illustration spheres

flexible Healthcare Sensors for Disruptive Medical Techniques

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材料导报 2020年第15期34卷 15001-15002页

作者： XU Manzhang WANG Xuewen HUANG Wei Frontiers Science Center for flexible electronics(FSCFE)&Shaanxi institute of flexible electronics(sife) Northwestern Polytechnical UniversityXi’an 710072China

flexible healthcare sensors could significantly change the diagnose towards portable,wearable,remote,and timely,that will breed the revolutionary and disruptive medical technique for traditional diagnosis in clinical practice[1-4].As schematically illustrated in Fig.1a,traditional disease diagnosis always requires patients to go to hospital for diagnosis which is time-consuming and takes up a lot of medical ***,wearable health-monitoring was demonstrated by flexible healthcare sensors for telemedicine applications[5].Health-related physiological signals will be collected by flexible sensors and transmitted to hospital and database for analysis(Fig.1b).The database needs doctors input by completing the relationship between physiological signals and body *** accuracy of diagnosis results mainly depends on the integrity of the ***,wearable health monitoring provides a convenient way for disease diagnosis,but the doctor s role is still crucial and irreplaceable.

关键词： diagnosis doctor replace

Carrier Dynamics Determines the Optimization Strategies of Perovskite LEDs and PVs

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Research 2024年第2期2023卷 111-114页

作者： Saixue Wang Yu Cao Qiming Peng Wei Huang Jianpu Wang Key Laboratory of flexible electronics(KLOFE) Institute of Advanced Materials(IAM)&Schoolof Flexible Electronics(Future Technologies)Nanjing Tech University(Nanjing Tech)30 South Puzhu RoadNanjing 211816China strait Laboratory of flexible electronics(SLoFE) Strait Institute of Flexible Electronics(SIFEFuture Technologies)Fujian Normal UniversityFuzhou 350117China

Metal halide perovskites have advanced greatly in both light-emitting diodes(LEDs)and photovoltaics(PVs)through delicate device *** optimization strategies of perovskite LEDs and PVs have been demonstrated to be quite ***,we show that this dissimilarity in device fabrications can be well understood based on the analysis of carrier dynamics in LEDs and PVs.

关键词： diodes perovskite optimization

Fast-Charging Sodium-Ion Batteries Enabled by Molecular-Level Designed Nitrogen and Phosphorus Codoped Mesoporous Soft Carbon

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Research 2024年第2期2023卷 329-337页

作者： Lei Liu Zhuzhu Du Jiaqi Wang Hongfang Du Sheng Wu Mengjun Li Yixuan Zhang Jinmeng Sun Zhipeng Sun Wei Ai Frontiers Science Center for flexible electronics(FSCFE)and Shaanxi institute of flexible electronics(sife) Northwestern Polytechnical University(NPU)127 West Youyi RoadXi'an 710072China Fujian Cross strait institute of flexible electronics(Future Technologies) Fujian Normal UniversityFuzhou 350117China School of Materials and Energy Guangdong University of TechnologyGuangzhou510006 GuangdongChina

Soft carbons have attracted extensive interests as competitive anodes for fast-charging sodium-ion batteries(SIBs);however,the high-rate performance is still restricted by their large ion migration barriers and sluggish reaction ***,we show a molecular design approach toward the fabrication of nitrogen and phosphorus codoped mesoporous soft carbon(NPSC).The key to this strategy lies in the chemical cross-linking reaction between polyphosphoric acid and p-phenylenediamine,associated with pyrolysis induced in-situ self-activation that creates mesoporous structures and rich heteroatoms within the carbon *** to the enlarged interlayer spacing,reduced ion diffusion length,and plentiful active sites,the obtained NPSC delivers a superb rate capacity of 215 mAh g-1 at 10 A g-1 and an ultralong cycle life of 4,700 cycles at 5 A g^(-1).Remarkably,the full cell shows 99%capacity retention during 100 continuous cycles,and maximum energy and power densities of 191 Wh kg^(-1)and 9.2 kW kg^(-1),*** believe that such a synthetic protocol could pave a novel venue to develop soft carbons with unique properties for advanced SIBs.

关键词： kinetics carbons linking

Scrolling bilayer WS2/MoS2 heterostructures for high-performance photo-detection

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Nano Research 2020年第4期13卷 959-966页

作者： Lin Wang Qiuyan Yue Chengjie Pei Huacheng Fan Jie Dai Xiao Huang Hai Li Wei Huang Key Laboratory of flexible electronics(KLOFE)&institute of Advanced Materials Nanjing Tech UniversityNanjing 211816China Shaanxi institute of flexible electronics(sife) Northwestern Polytechnical UniversityXian 710072China

Recently,transition metal dichalcogenides(TMDCs)nanoscrolls have exhibited unique electronic and optical properties due to their spiral tubular structures,which are formed by rolling up monolayer TMDCs *** by the excellent physical and chemical properties of TMDCs van der Waals heterostructures(vdWHs),it is highly desirable to scroll TMDCs vdWHs for potential optoelectronic *** this work,WS2/MoS2 vdWHs nanoscrolls were massively prepared by dropping aqueous alkaline droplet on chemical vapor deposition(CVD)-grown bilayer WS2/MoS2 vdWHs,which were formed by growing monolayer WS2 islands on top of monolayer MoS2 nanosheets *** optical microscopy(OM),atomic force microscopy(AFM),ultralow frequency(ULF)Raman spectroscopy and transmission electron microscopy(TEM)were utilized to characterize the WS2/MoS2 vdWHs ***-obtained WS2/MoS2 vdWHs nanoscrolls exhibited new ULF breathing mode as well as shear mode peaks due to the strong interlayer ***,the photosensitivities of WS2/MoS2 vdWHs nanoscrolls-based devices were about ten times higher than those of WS2/MoS2 vdWHs-based devices under blue,green and red lasers,respectively,which could be attributed to the ultrafast charge transfer at alternative WS2/MoS2 and MoS2/WS2 multi-interfaces in scrolled *** work suggested that TMDCs vdWHs scrolls could be promising candidates for optoelectronic applications.

关键词： van der Waals heterostmctures chemical vapor deposition WS2/M0S2 nanoscroll photosensitivity aqueous alkaline droplet multi-interfaces

Recent progress in two-photon small molecule fluorescent probes for enzymes

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Chinese Chemical Letters 2019年第10期30卷 1738-1744页

作者： Ding Chen Wenjing Qin Haixiao Fang Lan Wang Bo Peng Lin Li Wei Huang Key Laboratory of flexible electronics(KLOFE)&institute of Advanced Materials(IAM) Nanjing Tech University(NanjingTech)Nanjing 211816China Shaanxi institute of flexible electronics(sife) Northwestern Polytechnical University(NPU)Xi'an 710072China

Enzymes are macromolecular biological catalysts which can accelerate chemical reactions in living organisms. Almost all the physiological metabolism activities in the cell need enzymes to sustain life via rapid catalysis. Currently, medical research has proved that abnormal enzyme activity is associated with numerous diseases, such as Parkinson’s disease(PD), Alzheimer’s disease(AD) and cancers. On the other hand, early diagnosis of those diseases is of great significance to improve the survival rate and cure *** the current diagnostic tools, two-photon fluorescent probes(TPFPs) are developing rapidly due to their unique advantages, such as higher spatial resolution, deeper imaging depth, and lower ***, the design and synthesis of two-photon(TP) small molecule enzymatic probes have broad prospects for early diagnosis and treatment of diseases. As of now, scientists have developed many TP small molecule enzymatic probes. This review aims to summarize the TP small molecule enzymatic probes and expound the reaction mechanism.

关键词： Enzymes Fluorescence Two-photon probes Fluorogenic probes Small molecule Disease

Color-tunable ultralong organic phosphorescence materials for visual UV-light detection

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Science China Chemistry 2020年第10期63卷 1443-1448页

作者： Lifang Bian Huili Ma Wenpeng Ye Anqi Lv He Wang Wenyong Jia Long Gu Huifang Shi Zhongfu An Wei Huang Key Laboratory of flexible electronics(KLOFE)&institute of Advanced Materials(IAM) Nanjing Tech UniversityNanjing 211816China 2Frontiers Science Center for flexible electronics(FSCFE) Shaanxi Institute of Flexible Electronics(SIFE)&Shaanxi Institute of Biomedical Materials and Engineering(S/BME)Northwestern Polytechnical University(NPU)Xi'an 710072China

Ultralong organic phosphorescence(UOP)materials have roused considerable attention in the field of photonics and optoelectronics owing to the feature of long-lived emission ***,to develop UOP materials with color-tunability is still a formidable ***,we report a class of UOP materials containing carbonyl,amino or amide groups,exhibiting colortunable persistent luminescence ranging from blue(458 nm)to yellow-green(508 nm)under different UV wavelength *** theoretical and experimental results together,we conclude that the excitation dependent color-tunable UOP emission is ascribed to multiple emission centers from single molecular and aggregated states in *** color-tunable UOP feature,these materials are used to successfully realize visual UV-light *** finding not only provides a strategy to design new organic phosphorescent molecules with colorful emission,but also extends the scope of the applications of purely organic phosphorescent materials.

关键词： color tunability room temperature phosphorescence excitation dependent emission persistent luminescence UV-light detection