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Wearable energy harvesting-storage hybrid textiles as on-body self-charging power systems

Nano Research Energy 2023年第4期2卷 4-13页

作者： feifan Sheng Bo Zhang Renwei Cheng Chuanhui Wei Shen Shen Chuan Ning Jun yang Yunbing Wang Zhong Lin Wang Kai Dong CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and Sensor Beijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 101400China Hefei Normal University Hefei 230601China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049China National Engineering Research Center for Biomaterials Sichuan UniversityChengdu 610064China School of Material Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

The rapid development of wearable electronics requires its energy supply part to be flexible,wearable,integratable and ***,some of the energy supply units cannot meet these requirements at the same time,and there is also a capacity limitation of the energy storage units,and the development of sustainable wearable self-charging power supplies is ***,we report a wearable sustainable energy harvesting-storage hybrid self-charging power *** power textile consists of a coaxial fiber-shaped polylactic acid/reduced graphene oxide/polypyrrole(PLA-rGO-PPy)triboelectric nanogenerator(fiber-TENG)that can harvest low-frequency and irregular energy during human motion as a power generation unit,and a novel coaxial fiber-shaped supercapacitor(fiber-SC)prepared by functionalized loading of a wet-spinning graphene oxide fiber as an energy storage *** fiber-TENG is flexible,knittable,wearable and adaptable for integration with various portable *** coaxial fiber-SC has high volumetric energy density and good cycling *** fiber-TENG and fiber-SC are flexible yarn structures for wearable continuous human movement energy harvesting and storage as on-body self-charging power systems,with light-weight,ease of preparation,great portability and wide *** integrated power textile can provide an efficient route for sustainable working of wearable electronics.

关键词： power textiles coaxial supercapacitors triboelectric nanogenerators self-charging sustainable working

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Hot Mixing Behavior and Curing Process of Epoxy Asphalt

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Journal of Wuhan University of Technology(Materials Science) 2020年第3期35卷 605-610页

作者： LI Huawei WEI Wei ZHANG Chao XU feifan LI Xin JING Peng ZHU Quanyao DING Qingjun YAN Boxiang School of Materials Science and Engineering Wuhan University of TechnologyWuhan 430070China Department of Physics Changji UniversityChangji 831100China State Key Laboratory of Sil-icate Engineering Center Wuhan University of TechnologyWuhan 430070China

A new hot mixed epoxy asphalt system was developed. The reaction process of epoxy resin was characterized by Fourier transform infrared spectroscopy (FTIR). The viscosity was investigated by Brinell viscometer when epoxy resin was mixed with asphalt. The glass transition temperature (Tg), homogeneity, thermal stability and viscoelasticity of epoxy asphalt were analyzed by differential scanning calorimetry (DSC), metallographic microscope, thermogravimetric (TG) and dynamic mechanical analysis (DMA). The results showed that the viscosity of epoxy resin modified asphalt reached 1000 mPa·s for more than 180 minutes at 180 ℃, while the best construction process is mixing at 180 ℃ for 2 hours and curing at 60 ℃ for 4 days. The particle size of asphalt is less than 50 μm. In addition, the mechanical properties of the materials are uniform within the specified pavement thickness.

关键词： epoxy asphalt FTIR curing process viscosity dispersed

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Novel DNA methylation markers for early detection of gastric cardia adenocarcinoma and esophageal squamous cell carcinoma

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Science China Life Sciences 2024年第12期67卷 2701-2712页

作者： Zhiyuan Fan Jiajie Hao feifan He Hao Jiang Jinwu Wang Minjuan Li Xinqing Li Ru Chen Wenqiang Wei Office of National Central Cancer Registry National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College State Key Laboratory of Molecular Oncology Center for Cancer Precision Medicine National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital Chinese Academy of Medical Sciences and Peking Union Medical College School of Population Medicine and Public Health Chinese Academy of Medical Sciences and Peking Union Medical College Department of Pathology Linzhou Cancer Hospital Department of Orthopedic Surgery Beijing Jishuitan Hospital Capital Medical University Collaborative Innovation Center for Cancer Personalized Medicine Nanjing Medical University

Gastric cardia adenocarcinoma(GCA) and esophageal squamous cell carcinoma(ESCC) present significant health challenges in China, often diagnosed at advanced stages with poor prognoses. However, effective biomarkers for early detection remain elusive. This study aimed to integrate methylome and transcriptome data to identify DNA methylation markers for the early detection of GCA and ESCC. In the discovery stage, we conducted Infinium Methylation EPIC array analysis on 36 paired GCA and non-tumor adjacent tissues(NAT), identifying differentially methylated Cp G sites(DMCs) between GCA/ESCC and NAT through combined analyses of in-house and publicly available data. In the validation stage, targeted pyrosequencing and quantitative real-time RT-PCR were performed on paired tumor and NAT samples from 50GCA and 50 ESCC patients. In the application stage, an independent set of 438 samples, including GCA, ESCC, high-and low-grade dysplasia(HGD/LGD), and normal controls, was tested for selected DMCs using pyrosequencing. Our analysis validated three GCA-specific, two ESCCspecific, and one tumor-shared DMCs, exhibiting significant hypermethylation and decreased expression of target genes in tumor samples compared with NAT. Leveraging these DMCs, we developed a GCA-specific 4-marker panel(cg27284428, cg11798358, cg07880787, and cg00585116) with an area under the receiver operating characteristic curve(AUC) of 0.917, effectively distinguishing between cardia HGD/GCA patients and cardia LGD/normal controls. Similarly, an ESCC-specific 3-marker panel(cg14633892, cg04415798, and cg00585116)achieved an AUC of 0.865 in distinguishing esophageal HGD/ESCC cases. Furthermore, integrating cg00585116, age, and alcohol consumption yielded a tumor-shared logistic model with good discrimination for two cancer/HGD(AUC, 0.767; 95% confidence interval, 0.720–0.813). The mean AUC of the model after 5-fold cross-validation was 0.764. In summary, our study identifies novel DNA methylation markers ca

关键词： gastric cardia adenocarcinoma esophageal squamous cell carcinoma high-grade dysplasia DNA methylation markers early detection

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Characterization of cerebrovascular changes in Alzheimer's disease mice by photoacoustic imaging

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Journal of Innovative Optical Health Sciences 2024年第6期17卷 29-40页

作者： Xi Li Zhongyang Zhang Hua Shi feifan Zhou Key Laboratory of Biomedical Engineering of Hainan Province School of Biomedical Engineering Hainan University Sanya 572025P.R.China

The cerebral vasculature plays a significant role in the development of Alzheimer's disease(AD),however,the specific association between them remains *** this paper,based on the benefits of photoacoustic imaging(PAI),including label-free,high-resolution,in vivo imaging of vessels,we investigated the structural changes of cerebral vascular in wild-type(WT)mice and AD mice at different ages,analyzed the characteristics of the vascular in different brain regions,and correlated vascular characteristics with cognitive *** results showed that vascular density and vascular branching index in the cortical and frontal regions of both WT and AD mice decreased with ***,vascular lacunarity increased with age,and the changes in vascular structure were more pronounced in AD *** trend of vascular dysfunction aligns with the worsening cognitive dysfunction as the disease ***,we utilized in vivo PAI to analyze the changes in vascular structure during the progression of AD,elucidating the spatial and temporal correlation with cognitive impairment,which will provide more intuitive data for the study of the correlation between cerebrovascular and the development of AD.

关键词： Photoacoustic imaging Alzheimer's disease cerebrovascular vascular network cognitive impairment.

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High-Efficiency Wastewater Purification System Based on Coupled Photoelectric–Catalytic Action Provided by Triboelectric Nanogenerator

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Nano-Micro Letters 2021年第12期13卷 95-108页

作者： Shen Shen Jiajia Fu Jia Yi Liyun Ma feifan Sheng Chengyu Li Tingting Wang Chuan Ning Hongbo Wang Kai Dong Zhong Lin Wang CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-Nano Energy and SensorBeijing Institute of Nanoenergy and NanosystemsChinese Academy of SciencesBeijing 100083People’s Republic of China Jiangsu Engineering Technology Research Centre for Functional Textiles Jiangnan UniversityNo.1800 Lihu AvenueWuxiPeople’s Republic of China School of Nanoscience and Technology University of Chinese Academy of SciencesBeijing 100049People’s Republic of China School of Material Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332-0245USA

It is of great importance to explore a creative route to improve the degradation e ciency of organic pollutants in ***,we construct a unique hybrid system by combining self-powered triboelectric nanogenerator(TENG)with carbon dots-TiO_(2)sheets doped three-dimensional graphene oxide photocatalyst(3 DGA@CDs-TNs),which can significantly enhance the degradation e ciency of brilliant green(BG)and direct blue 5 B(DB)owing to the powerful interaction of TENG and 3 DGA@CDs-TNs *** power output of TENG can be applied for wastewater purification directly,which exhibits a selfpowered electrocatalytic ***,the results also verify that TENG can replace conventional electric catalyst to remove pollutants e ectively from wastewater without any ***,the unstable fragments and the plausible removal pathways of the two pollutants are *** work sheds light on the development of e cient and sustainable TENG/photocatalyst system,opening up new opportunities and possibilities for comprehensive utilization of random energy.

关键词： Triboelectric nanogenerators Self-powered 3DGA@CDs-TNs photocatalyst Hybrid system Wastewater purification

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Intracellular pharmacokinetic study of zidovudine and its phosphorylated metabolites

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Acta Pharmaceutica Sinica B 2016年第2期6卷 158-162页

作者： Lingli Mu Rui Zhou Fang Tang Xingling Liu Sanwang Li feifan Xie Xiang Xie Jie Peng Peng Yu Medical College Hunan Normal University School of Pharmaceutical Sciences Central South University

Zidovudine (AZT), the first drug approved by the US Food and Drug Administration for the treatment of human immunodeficiency virus (HIV) infection, is metabolized in the host cells to 5'-AZT triphosphate (AZT-TP) which inhibits HIV reverse transcriptase. As the pharmacokinetics of AZT and its phosphorylated metabolites in human peripheral blood mononuclear cells (hPBMCs) is limited, the aim of this study was to determine the pharmacokinetic parameters of AZT and its phosphorylated metabolites in hPBMCs from 12 healthy Chinese male subjects after a single oral dose of 600 mg of AZT. Blood samples were collected prior to drug administration, then at 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8 and 10 h after drug administration. Mononuclear cells collected by Ficoll-Hypaque density gradient centrifugation were used for determination of AZT and metabolites [AZT monophosphate (AZT-MP), AZT diphosphate (AZT-DP) and AZT-TP] and the plasma was used to evaluate the pharmacokinetics of AZT. Plasma concentration of AZT peaked within 0.583 h and intracellular concentrations of AZT, AZT-MP, AZT-DP and AZT-TP peaked within 1.083, 1.500, 1.417 and 1.583 h, respectively. AZT in plasma was eliminated rapidly with t(1/2) of 2.022 h, and AZT-MP, AZT-DP and AZT-TP were eliminated with t(1/2) of 13.428, 8.285 and 4.240 h, respectively. The plasma concentration of the phosphorylated metabolites was not quantifiable. (C) 2016 Chinese Pharmaceutical Association and Institute of Materia Medica, Chinese Academy of Medical Sciences. Production and hosting by Elsevier B.V.

关键词： LC-MS/MS Zidovudine Metabolites Phosphates hPBMCs hPBMCs Pharmacokinetics Intracellular killed

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Establishment of a new molecular model for mercury determination verified by single crystal X-ray diffraction,spectroscopic analysis and biological potentials

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Chinese Chemical Letters 2021年第1期32卷 87-91页

作者： Jiapei Gu feifan Zhang Ziman Zheng Xiangqian Li Runxuan Deng Zhan Zhou Lufang Ma Wanqiang Liu Qianming Wang College of Chemistry and Chemical Engineering Henan Key Laboratory of Function-Oriented Porous MaterialsLuoyang Normal UniversityLuoyang 471934China Key Laboratory of Theoretical Chemistry of Environment Ministry of EducationSchool of ChemistrySouth China Normal UniversityGuangzhou 510006China School of Chemistry and Chemical Engineering Hunan University of Science and TechnologyXiangtan 411201China Guangdong Provincial Key Laboratory of Optical Information Materials and Technology&Institute of Electric Paper Displays South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou 510006China

A wide variety of molecular probes have been developed for real-time analysis,but most of organic fluorophores possess small Stokes shifts and self-absorption or inner filter effect that could not be *** this study,a new dicyanoisophorone-based derivative(E)-0-(4-(2-(3-(dicyanomethylene)-5,5-dimethylcyclohex-1-en-1-yl)vinyl)phenyl)diphenylphosphinothioate(λ_(ex)=405 nm,X_(em)=551 nm,denoted as ICM-S) with strong push-pull electron effect has been afforded and it exhibits red shift for absorption from 407 nm to 426 nm with distinct color change from pale yellow to deep yellow upon exposure to Hg~(2+).Moreover,an easily distinguishable fluorescence color change follows the route from green,yellow to red in the presence of Hg~(2+) over the range of 0-90 μmol/L(detection limit=137 nmol/L)can be observed by the naked eye under a UV lamp *** and sublimedsulfur are incorpo rated as re s ponsive sites and P-O bond has been cleaved upon the addition of mercu ry *** the recognition process,such dicyanoisophorone dye(ICM-S) has been evolved to 2-(3-(4-hydroxystyryl)-5,5-dimethylcyclohex-2-enylidene) malononitrile(ICM-OH).Clear evidences in the chemical processes can be identified via single crystal X-ray diffraction,spectroscopic analysis,photophysical studies and titration *** the aim of exploring its potential in biological systems,its in vitro responses to Hg~(2+) have been evaluated in 293 T cells and the effectiveness in zebrafish model has also been verified.

关键词： Dicyanoisophorone Ratiometric fluorescent probe Mercury ions Cell imaging Zebrafish

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Chiral exceptional point and coherent suppression of backscattering in silicon microring with low loss Mie scatterer

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eLight 2023年第1期3卷 66-74页

作者： Hwaseob Lee Ali Kecebas feifan Wang Lorry Chang Sahin K.Ozdemir Tingyi Gu Department of Electrical and Computer Engineering University of DelawareNewarkDE 19716USA Department of Engineering Science and Mechanics Pennsylvania State UniversityUniversity ParkPA 16802USA Materials Research Institute Pennsylvania State UniversityUniversity ParkPA 16802USA

Non-Hermitian systems with their spectral degeneracies known as exceptional points(EPs)have been explored for lasing,controlling light transport,and enhancing a sensor’s response.A ring resonator can be brought to an EP by controlling the coupling between its frequency degenerate clockwise and counterclockwise traveling *** has been typically achieved by introducing two or more nanotips into the resonator’s mode *** this method provides a route to study EP physics,the basic understanding of how the nanotips’shape and size symmetry impact the system’s non-Hermicity is missing,along with additional loss from both in-plane and out-of-plane *** limited resonance stability poses a challenge for leveraging EP effects for switches or modulators,which requires stable cavity resonance and fixed laser-cavity *** we use lithographically defined asymmetric and symmetric Mie scatterers,which enable subwavelength control of wave transmission and reflections without deflecting to additional radiation *** show that those pre-defined Mie scatterers can bring the system to an EP without post tuning,as well as enable chiral light transport within the ***,the Mie scatterer results in enhanced quality factor measured on the transmission port,through coherently suppressing the backscattering from the waveguide surface *** proposed device platform enables pre-defined chiral light propagation and backscattering-free resonances,needed for various applications such as frequency combs,solitons,sensing,and other nonlinear optical processes such as photon blockade,and regenerative oscillators.

关键词： Non-Hermicity Exceptional point Mie scatterers Microring resonator Silicon photonics

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Dielectric ultracapacitors based on columnar nano-grained ferroelectric oxide films with gradient phases along the growth direction

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Journal of Advanced Ceramics 2024年第7期13卷 1072-1079页

作者： Chuanqi Song feifan Zheng Yuan Zhang Hongbo Cheng Long Teng Kun Wang Hanfei Zhu Chao Liu Li Wang Zhengyan Liang Jun Ouyang Institute of Advanced Energy Materials and Chemistry School of Chemistry and Chemical EngineeringQilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Key Laboratory of Key Film Materials&Application for Equipment(Hunan Province) School of Materials Science and EngineeringXiangtan UniversityXiangtan 411105China China Tobacco Shandong Industrial Co. Ltd.Jinan 250104China

In this work,dielectric ultracapacitors were designed and fabricated using a combination of phase boundary and nanograin *** ultracapacitors are based on submicron-thick Ba(Zr_(0.2)Ti_(0.8))O_(3) ferroelectric films sputterdeposited on Si at 500℃.With a composition near a polymorphic phase boundary(PPB),a compressive strain,and a high nucleation rate due to the lowered deposition temperature,these films exhibit a columnar nanograined microstructure with gradient phases along the growth *** a microstructure presents three-dimensional polarization inhomogeneities on the nanoscale,thereby significantly delaying the saturation of the overall electric ***,a pseudolinear,ultraslim polarization(P)-electric field(E)hysteresis loop was obtained,featuring a high maximum applicable electric field(~5.7 MV/cm),low remnant polarization(~5.2μC/cm^(2))and high maximum polarization(~92.1μC/cm^(2)).This P-E loop corresponds to a high recyclable energy density(W_(rec)~208 J/cm^(3))and charge‒discharge efficiency(~88%).An indepth electron microscopy study revealed that the gradient ferroelectric phases consisted of tetragonal(T)and rhombohedral(R)polymorphs along the growth direction of the *** T-rich phase is abundant near the bottom of the film and gradually transforms into the R-rich phase near the *** films also exhibited a high Curie temperature of~460℃and stable capacitive energy storage up to 200℃.These results suggest a feasible pathway for the design and fabrication of high-performance dielectric film capacitors.

关键词： ferroelectric thin films energy storage phase coexistence nanograin silicon

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Plant-based dietary patterns and risk of esophageal cancer:A prospective cohort study spanning 17 years

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Chinese Journal of Cancer Research 2024年第1期36卷 36-45页

作者： Xiaorui Zhang feifan He Jiayue Li Ru Chen Xinqing Li Li Li Fen Liu Shaoming Wang Wenqiang Wei Department of Epidemiology and Health Statistics School of Public HealthBeijing Municipal Key Laboratory of Clinical EpidemiologyCapital Medical UniversityBeijing 100069China National Central Cancer Registry office National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Department of Cancer Epidemiology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China

Objective: Plant-based diets have multiple health benefits for cancers;however, little is known about the association between plant-based dietary patterns and esophageal cancer(EC).This study presents an investigation of the prospective associations among three predefined indices of plant-based dietary patterns and the risk of ***: We performed endoscopic screening for 15,709 participants aged 40-69 years from two high-risk areas of China from January 2005 to December 2009 and followed the cohort until December 31, 2022. The overall plant-based diet index(PDI), healthful plant-based diet index(h PDI), and unhealthful plant-based diet index(u PDI), were calculated using survey responses to assess dietary patterns. We applied Cox proportional hazard regression to estimate the multivariable hazard ratios(HRs) and 95% confidence intervals(95% CIs) of EC across 3plant-based diet indices and further stratified the analysis by ***: The final study sample included 15,184 participants in the cohort. During a follow-up of 219,365person-years, 176 patients with EC were identified. When the highest quartile was compared with the lowest quartile, the pooled multivariable-adjusted HR of EC was 0.50(95% CI, 0.32-0.77) for h PDI. In addition, the HR per 10-point increase in the h PDI score was 0.42(95% CI, 0.27-0.66) for ECs. Conversely, u PDI was positively associated with the risk of EC, and the HR was 1.80(95% CI, 1.16-2.82). The HR per 10-point increase in the u PDI score was 1.90(95% CI, 1.26-2.88) for ECs. The associations between these scores and the risk of EC were consistent in most subgroups. These results remained robust in sensitivity ***: A healthy plant-based dietary pattern was associated with a reduced risk of EC. Emphasizing the healthiness and quality of plant-based diets may be important for preventing the development of EC.

关键词： Esophageal cancer diet dietary pattern epidemiology nutrition prospective cohort study

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