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A chitosan/amido-graphene oxide-based self-powered humidity sensor enabled by triboelectric effect

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Rare Metals 2021年第8期40卷 1995-2003页

作者： Bo-Hao Liu Guang-Zhong Xie Cheng-Zhen Li Si Wang Zhen Yuan Zai-Hua Duan Ya-Dong Jiang Hui-Ling Tai State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu610054China

In this work,amido-graphene oxide(GO-NH_(2))loaded chitosan(CTS)composite material(CTS/GO-NH_(2))that acts as both the triboelectric and sensing film was prepared on rotary fan-shaped triboelectric nanogenerator for humidity *** with the pristine CTSbased triboelectric humidity sensor(CTS-THS)and GONH_(2)-THS,the CTS/GO-NH_(2)-based humidity sensor exhibited higher humidity response and better linearity in the relative humidity(RH)range of 18.7%RH-91.5%*** above results can be explained by the massive exposed and less concealed hydrophilic functional groups of CTS with the help of the wrinkle structure of GO-NH_(2).Meanwhile,the CTS/GO-NH_(2)-THS possessed good repeatability and acceptable hysteresis(~6.2%RH).Finally,a humidity sensing mechanism coupling triboelectric contact charging effect with electrons transfer principle under moisture environment was established to interpret the enhanced humidity sensing performance of the composite film-based *** work demonstrates that CTS/GONH_(2) composite film can be utilized to fabricate humidity sensors based on the triboelectric effect.

关键词： Chitosan Amido-graphene oxide Triboelectric nanogenerator Humidity sensors hydrogen bonding interaction

Mechanistic insights of the controlled release capacity of polar functional group in transdermal drug delivery system:the relationship of hydrogen bonding strength and controlled release capacity

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Acta Pharmaceutica Sinica B 2020年第5期10卷 928-945页

作者： Zheng Luo Chao Liu Peng Quan Degong Yang Hanqing Zhao Xiaocao Wan Liang Fang Department of Pharmaceutical Sciences School of PharmacyShenyang Pharmaceutical Universityshenyang 110016China

Background:hydrogen bonding interaction was considered to play a critical role in controlling drug release from transdermal ***,the quantitative evaluation of hydrogen bonding strength between drug and polar functional group was rarely reported,and the relationship between hydrogen bonding strength and controlled release capacity of pressure sensitive adhesive(PSA)was not well *** present study shed light on this ***:Acrylate PSAs with amide group were synthesized by a free radical-initiated solution *** drugs,i.e.,etodolac,ketoprofen,gemfibrozil,zolmitriptan,propranolol and lidocaine,were selected as model *** vitro drug release and skin permeation experiments and in vivo pharmacokinetic experiment were *** correlation analysis,fourier-transform infrared spectroscopy and molecular simulation were conducted to provide molecular details of drug-PSA *** test,rheology study,and modulated differential scanning calorimetry study were performed to scrutinize the free volume and molecular mobility of ***:Release rate of all six drugs from amide PSAs decreased with the increase of amide group concentrations;however,only zolmitriptan and propranolol showed decreased skin permeation *** was found that drug release was controlled by amide group through hydrogen bonding,and controlled release extent was positively correlated with hydrogen bonding ***:From these results,we concluded that drugs with strong hydrogen bond forming ability and high skin permeation were suitable to use amide PSAs to regulate their release rate from patch.

关键词： Controlled release Polar functional group hydrogen bonding strength Pharmacokinetics Pressure sensitive adhesive hydrogen bonding interaction Transdermal patch Stratum corneum

Synthesis and Crystal Structure of a New Zn(Ⅱ) Complex Exhibiting Strong Luminescence

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Chinese Journal of Structural Chemistry 2010年第1期29卷 57-62页

作者：冯蕊闫春凤陈莲吴明燕江飞龙洪茂椿 State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of MatterThe Chinese Academy of Sciences Graduate School of the Chinese Academy of Sciences

The title complex,[Zn（ip）2（H2O）2][ZnCl4]·H2O·2DMF 1（ip=imidazo[4,5-f][1,10] phenanthroline）,has been synthesized via the slow evaporation of concentrated reaction solution at room *** was characterized by single-crystal X-ray *** data for C32H36Cl4N10O5Zn2：white prism,0.17mm×0.15mm×0.10mm,monoclinic,space group P2/c,a=11.928（8）,b=9.868（6）,c=16.520（11）,β=104.879（12）°,V=1879（2）3,Z=2,Mr=913.25,Dc=1.614 g/cm3,F（000）=932,μ=1.616 mm-1,λ（MoKα）=0.71073,GOOF=1.045,R=0.0710 and wR=0.1755 for 3055 observed reflections with I 〉 2σ（I）. X-ray diffraction study reveals that the title complex has an interesting 3D architecture via hydrogen bonding interactions and π-π interactions. The IR, TGA, XRD and luminescent properties of complex 1 were also studied.

关键词： zinc imidazo[4,5-f] phenanthroline hydrogen bonding interaction ,π-π interaction luminescent property