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23篇 您的检索式:作者名="Li Fanqi"
    题名 作者 年代 出处 被引量
1An epidermal sEMG tattoo-like patch as a new human–machine interface for patients with loss of voice显示文摘Throat cancer treatment involves surgical removal of the tumor,leaving patients with facial disfigurement as well as temporary or permanent loss of voice.Surface electromyography(sEMG)generated from the jaw contains lots of voice information.However,it is difficult to record because of not only the weakness of the signals but also the steep skin curvature.This paper demonstrates the design of an imperceptible,flexible epidermal sEMG tattoo-like patch with the thickness of less than 10μm and peeling strength of larger than 1N cm−1 that exhibits large adhesiveness to complex biological surfaces and is thus capable of sEMG recording for silent speech recognition.When a tester speaks silently,the patch shows excellent performance in recording the sEMG signals from three muscle channels and recognizing those frequently used instructions with high accuracy by using the wavelet decomposition and pattern recognization.The average accuracy of action instructions can reach up to 89.04%,and the average accuracy of emotion instructions is as high as 92.33%.To demonstrate the functionality of tattoo-like patches as a new human–machine interface(HMI)for patients with loss of voice,the intelligent silent speech recognition,voice synthesis,and virtual interaction have been implemented,which are of great importance in helping these patients communicate with people and make life more enjoyable.Huicong Liu Wei Dong Yunfei Li Fanqi Li Jiangjun Geng Minglu Zhu Tao Chen Hongmiao Zhang Lining Sun Chengkuo Lee 2020Microsystems & Nanoengineering2020,6,1:6
2Quasi-two-dimensionalβ-Ga2O3 field effect transistors with large drain current density and low contact resistance via controlled formation of interfacial oxygen vacancies显示文摘Quasi-two-dimensi on al(2D)β-Ga2O3 is a rediscovered metal-oxide semiconductor with an ultra-wide bandgap of 4.6-4.9eV.It has been reported to be a promising material for next-generation power and radio frequency electronics.Field effect transistors(FETs)that can switch at high voltage are key compone nts in power and radio frequency devices,and reliable Ohmic con tacts are essential for high FET performance.However,obtaining low contact resistance onβ-Ga2O3 FETs is difficult since reactions betweenβ-Ga2O3 and metal contacts are not fully understood.Herein,we experimentally demonstrate the importanee of reactions at the metal/β-Ga2O3 interface and the corresponding effects of these reactions on FET performance.When Ti is employed as the metal contact,annealing ofβ-Ga2O3 FETs in argon can effectively transform Schottky contacts into Ohmic contacts and permit a large drain current density of-3.1 mA//μm.The contact resistance(Rcontact)between the Ti electrodes andβ-Ga2O3 decreased from^430 to^0.387Ω·mm after annealing.X-ray photoelectron spectroscopy(XPS)confirmed the formation of oxygen vacancies at the Ti/β-Ga2O3 interface after annealing,which is believed to cause the improved FET performance.The results of this study pave the way for greater application ofβ-Ga2O3 in electronics.Zhen Li Yihang Liu Anyi Zhang Qingzhou Liu Chenfei Shen Fanqi Wu Chi Xu Mingrui Chen Hongyu Fu Chongwu Zhou 2019Nano Research2019,12,1:2
3Frequency regulation in alternation-current transports across metal to insulator transitions of thin film correlated perovskite nickelates显示文摘Although the metal to insulator transition(MIT)observed in d-band correlated metal oxides enables promising applications(e.g.,correlated logical devices and Mottronic devices),its present recognition is mainly limited on the direct current(DC)electrical transports.Up to date,the MIT from the perspective of alternation current(AC)transport and its potential electronic applications remains yet unclear.Herein,we demonstrate the frequency(f_(AC))dependence in the impedance(Z=Z’+iZ″)of typical MIT materials,such as thin film rare-earth nickelates(Re NiO_(3)),across the critical MIT temperature(T_(MIT)).Apart from the abrupt change in the impedance modulus(|Z|)across the critical temperature(T_(MIT))similar to the DC transport,the MIT also triggers non-continuous variation in the impedance phase(θ),and this enables the f_(AC)-regulations in the Z’-T tendencies(Z’=|Z|cosθ).At the critical f_(AC) range(e.g.,104-106 Hz),the con-versing variations in|Z|-T and cosθ-T across T_(MIT) result in non-monotonic delta-shape Z’-T tendency in Sm_(x) Nd_(1-x) NiO_(3),the full width half maximum of which is effectively narrowed compared to the situation with the absence of MIT.Further imparting lower or higher f_(AC) elevate the domination in|Z|-T and cosθ-T,respectively,but also enables abrupt Z’-T tendencies across T_(MIT) showing negative temperature coefficient of resistance(NTCR)or positive temperature coefficient of resistance(PTCR).By introducing f_(AC) as a new freedom,the MIT behavior can be more comprehensively regulated electronically,and this extends the vision in exploring the new electronic applications based on the correlated MIT materials from the AC perspective.Haifan Li Fanqi Meng Yi Bian Xuanchi Zhou Jiaou Wang Xiaoguang Xu Yong Jiang Nuofu Chen Jikun Chen 2023Journal of Materials Science & Technology2023,,17:1
4Ap-plication of extenics theory for evaluating effect de-gree of damaged mountains based on analytic hier-archy process 显示文摘ZHANG Yongwei LI Shucai MENG Fanqi 2014Environmental Earth Sciences2014,71,10:1
5Anchoring Single Nickel Atoms on Carbon-vacant Carbon Nitride Nanosheets for Efficient Photocatalytic Hydrogen Evolution显示文摘Polymeric carbon nitride(PCN)has emerged as a promising candidate for photocatalytic hydrogen evolution,but its dependence on scarce and high-cost noble metal co-catalysts severely limits its extensive application.It will be of great promise to develop non-noble metal single-atom co-catalysts with low-cost and high atom utilization to improve the photocatalytic performance over PCN.Herein,single Ni atoms are successfully anchored onto carbon-vacant PCN nanosheets(CCN-SANi)via a two-step ammonia thermal treatment and photo-deposition process.Theoretical calculations and experimental results demonstrate that the optical absorption property and the charge transfer ability of CCN-SANi have been significantly improved with the introduction of single Ni atoms to form Ni-N3 sites.In comparison to carbon-vacant PCN(CCN)loaded with Ni clusters,the obtained CCN-SANi exhibits 11.4 times increased photocatalytic performance,with the highest hydrogen evolution rate reaching 511μmol/(g·h),which is even 1.7 times higher than that of CCN loaded with Pt clusters.This research proposes an inspiring and reliable strategy to design novel single-atom semiconducting polymers with electronic structures manipulated for efficient photocatalysis.LIN Zhi ZHANG Zhengqi WANG Yiqing PENG Zhiming WANG Xinxin WANG Ruizhe HUANG Yu-Cheng MENG Fanqi LI Mingtao DONG Chung-Li ZHANG Qinghua GU Lin SHEN Shaohua 2022Chemical Research in Chinese Universities2022,38,5:1
6Bitriazolyl acyclonucleosides with antiviral activity against tobacco mosaic virus显示文摘Wei Li Yi Xia Zhijin Fan Fanqi Qu Qiongyou Wu Ling Peng 2008Tetrahedron Letters2008,,17:1
7Study on the preparation of novel functional poly (dioxanone) and for thecontrolled release of protein 显示文摘Li Mingxia Zhuo Renxi QU Fanqi 2003React Funct Polym2003,55,2:1
8Gold-vapor-assisted chemical vapor deposition of aligned monolayer WSe2 with large domain size and fast growth rate显示文摘Orientation-controlled growth of two-dimensional(2D)transition metal dichalcogenides(TMDCs)may enable many new electronic and optical applications.However,previous studies reporting aligned growth of WSe2 usually yielded very small domain sizes.Herein,we introduced gold vapor into the chemical vapor deposition(CVD)process as a catalyst to assist the growth of WSe2 and successfully achieved highly aligned monolayer WSe2 triangular flakes grown on c-plane sapphire with large domain sizes(130μm)and fast growth rate(4.3μm·s^−1).When the aligned WSe2 domains merged together,a continuous monolayer WSe2 was formed with good uniformity.After transferring to Si/SiO2 substrates,field effect transistors were fabricated on the continuous monolayer WSe2,and an average mobility of 12 cm^2·V^−1·s−1 was achieved,demonstrating the good quality of the material.This report paves the way to study the effect of catalytic metal vapor in the CVD process of TMDCs and contributes a novel approach to realize the growth of aligned TMDC flakes.Mingrui Chen Anyi Zhang Yihang Liu Dingzhou Cui Zhen Li Yu-Han Chung Sai Praneetha Mutyala Matthew Mecklenburg Xiao Nie Chi Xu Fanqi Wu Qingzhou Liu Chongwu Zhou Mork 2020Nano Research2020,13,10:1
9Investigation of the struc-tural evolution and catalytic performance of the Cu Zn Al catalysts inthe hydrogenation of dimethyl oxalate to ethylene glycol显示文摘Wen Chao Li Fanqi Cui Yuanyuan 2014CatalToday2014,233,:1
10Investigation of the structural evolution and catalytic performance of the CuZnA1 catalysts in the hydrogenation of dimethyl oxalate to ethylene glycol 显示文摘Wen Chao Li Fanqi Cui Yuanyuan 2014Catalysis Today2014,233,:1
11Discovery of bitriazolyl compounds as novel antiviral candidates for combating the tobacco mosaic virus显示文摘Yi Xia Zhijin Fan Jianhua Yao Quan Liao Wei Li Fanqi Qu Ling Peng 2006Bioorganic & Medicinal Chemistry Letters2006,,10:1
12Study on the stability of CH3NH3PbI3 films and the effect of post- modification by aluminum oxide in all-solid-state hybrid solar cells 显示文摘Niu Guangda Li Wenzhe Meng Fanqi 2013Journal of Materials Chemistry A2013,2,3:1
13More than just a GPCRligand: structure-based discovery of thioridazine derivativesas pim-1 kinase inhibitors显示文摘Li Wei Wan Xiaobo Zeng Fanqi 2014Med Chem Comm2014,5,4:1
14Investigation of the structural evolution and catalytic performance of the Cu Zn Al catalysts in the hydrogenation of dimethyl oxalate to ethylene glycol显示文摘Wen Chao Li Fanqi Cui Yuanyuan 2014Catalysis Today2014,233,:1
15Quantized anomalous Hall resistivity achieved in molecular beam epitaxy-grown MnBi_(2)Te_(4)thin films显示文摘The intrinsic magnetic topological insulator MnBi_(2)Te_(4)provides a feasible pathway to the high-temperature quantum anomalous Hall(QAH)effect as well as various novel topological quantum phases.Although quantized transport properties have been observed in exfoliated MnBi_(2)Te_(4)thin flakes,it remains a big challenge to achieve molecular beam epitaxy(MBE)-grown MnBi_(2)Te_(4)thin films even close to the quantized regime.In this work,we report the realization of quantized anomalous Hall resistivity in MBE-grown MnBi_(2)Te_(4)thin films with the chemical potential tuned by both controlled in situ oxygen exposure and top gating.We find that elongated post-annealing obviously elevates the temperature to achieve quantization of the Hall resistivity,but also increases the residual longitudinal resistivity,indicating a picture of high-quality QAH puddles weakly coupled by tunnel barriers.These results help to clarify the puzzles in previous experimental studies on MnBi_(2)Te_(4)and to find a way out of the big difficulty in obtaining MnBi_(2)Te_(4)samples showing quantized transport properties.Yunhe Bai Yuanzhao Li Jianli Luan Ruixuan Liu Wenyu Song Yang Chen Peng-Fei Ji Qinghua Zhang Fanqi Meng Bingbing Tong Lin Li Yuying Jiang Zongwei Gao Lin Gu Jinsong Zhang Yayu Wang Qi-Kun Xue Ke He Yang Feng Xiao Feng 2024National Science Review2024,11,2:0
16Metal-organic decomposition growth of thin film metastable perovskite nickelates with kinetically improved quantum transitions显示文摘The multiple quantum transitions within d-band correlation oxides such as rare-earth nickelates(RENiO_(3))triggered by critical temperatures and/or hydrogenation opened up a new paradigm for correlated electronics applications,e.g.ocean electric field sensor,bio-sensor,and neuron synapse logical devices.Nevertheless,these applications are obstructed by the present ineffectiveness in the thin film growth of the metastable RENiO_(3)with flexibly adjustable rare-earth compositions and electronic structures.Herein,we demonstrate a metal-organic decompositions(MOD)approach that can effectively grow metastable RENiO_(3)covering a large variety of the rare-earth composition without introducing any vacuum process.Unlike the previous chemical growths for RENiO_(3)relying on strict interfacial coherency that limit the film thickness,the MOD growth using reactive isooctanoate percussors is tolerant to lattice defects and therefore achieves comparable film thickness to vacuum depositions.Further indicated by positron annihilation spectroscopy,the RENiO_(3)grown by MOD exhibit large amount of lattice defects that improves their hydrogen incorporation amount and electron transfers,as demonstrated by the resonant nuclear reaction analysis and near edge X-ray absorption fine structure analysis.This effectively enlarges the magnitude in the resistance regulations in particular for RENiO_(3)with lighter RE,shedding a light on the extrinsic regulation of the hydrogen induced quantum transitions for correlated oxides semiconductors kinetically via defect engineering.Haiyan Li Yuzhao Wang Fanqi Meng Wei Mao Xingzhong Cao Yi Bian Hao Zhang Yong Jiang Nuofu Chen Jikun Chen 2023International Journal of Minerals,Metallurgy and Materials2023,30,12:0
17Lupenone improves motor dysfunction in spinal cord injury mice through inhibiting the inflammasome activation and pyroptosis in microglia via the nuclear factor kappa B pathway显示文摘Spinal cord injury-induced motor dysfunction is associated with neuroinflammation.Studies have shown that the triterpenoid lupenone,a natural product found in various plants,has a remarkable anti-inflammatory effect in the context of chronic inflammation.However,the effects of lupenone on acute inflammation induced by spinal cord injury remain unknown.In this study,we established an impact-induced mouse model of spinal cord injury,and then treated the injured mice with lupenone(8 mg/kg,twice a day)by intrape ritoneal injection.We also treated BV2 cells with lipopolysaccharide and adenosine5’-triphosphate to simulate the inflammatory response after spinal cord injury.Our res ults showed that lupenone reduced IKBa activation and p65 nuclear translocation,inhibited NLRP3 inflammasome function by modulating nuclear factor kappa B,and enhanced the conve rsion of proinflammatory M1 mic roglial cells into anti-inflammatory M2 microglial cells.Furthermore,lupenone decreased NLRP3 inflammasome activation,NLRP3-induced mic roglial cell polarization,and microglia pyroptosis by inhibiting the nuclear factor kappa B pathway.These findings suggest that lupenone protects against spinal cord injury by inhibiting inflammasomes.Fudong Li Xiaofei Sun Kaiqiang Sun Fanqi Kong Xin Jiang Qingjie Kong 2024Neural Regeneration Research2024,19,8:0
18Superconductivity above 28K in single unit cell FeSe ?lms interfaced with GaO_(2-δ) layer on NdGaO_3(110)显示文摘The discovery of high temperature superconductivity in single unit cell(UC)FeSe on TiO2-δterminated perovskite SrTiO3(001)substrates[1]has attracted intensive attention on searching for new superconducting systems with engineered interfaces as well as understanding the mechanism of interface high temperature superconductivity.Haohao Yang Guanyu Zhou Yuying Zhu Guan-Ming Gong Qinghua Zhang Menghan Liao Zheng Li Cui Ding Fanqi Meng Mohsin Rafique Heng Wang Lin Gu Ding Zhang Lili Wang Qi-Kun Xue 2019Science Bulletin2019,64,8:0
19Chromosome-level genome assembly of Salvia miltiorrhiza with orange roots uncovers the role of Sm2OGD3 in catalyzing 15,16-dehydrogenation of tanshinones显示文摘Salvia miltiorrhiza is well known for its clinical practice in treating heart and cardiovascular diseases.Its roots,used for traditional Chinese medicine materials,are usually brick-red due to accumulation of red pigments,such as tanshinone IIA and tanshinone I.Here we report a S.miltiorrhiza line(shh)with orange roots.Compared with the red roots of normal S.miltiorrhiza plants,the contents of tanshinones with a single bond at C-15,16 were increased,whereas those with a double bond at C-15,16 were significantly decreased in shh.We assembled a high-quality chromosome-level genome of shh.Phylogenomic analysis showed that the relationship between two S.miltiorrhiza lines with red roots was closer than the relationship with shh.It indicates that shh could not be the mutant of an extant S.miltiorrhiza line with red roots.Comparative genomic and transcriptomic analyses showed that a 1.0 kb DNA fragment was deleted in shh Sm2OGD3m.Complementation assay showed that overexpression of intact Sm2OGD3 in shh hairy roots recovered furan D-ring tanshinone accumulation.Consistently,in vitro protein assay showed that Sm2OGD3 catalyzed the conversion of cyptotanshinone,15,16-dihydrotanshinone I and 1,2,15,16-tetrahydrotanshinone I into tanshinone IIA,tanshinone I and 1,2-dihydrotanshinone I,respectively.Thus,Sm2OGD3 functions as tanshinone 15,16-dehydrogenase and is a key enzyme in tanshinone biosynthesis.The results provide novel insights into the metabolic network of medicinally important tanshinone compounds.Xian Pan Yujie Chang Caili Li Xiaoxiao Qiu Xinyun Cui Fanqi Meng Sixuan Zhang Xian’en Li Shanfa Lu 2023Horticulture Research2023,10,6:0
20Synthesis of Biodegradable Block Copolymer Acyl-Imine with Catalyst of Zinc Powder显示文摘This paper reported about a polymer of acyl imine synthesized by 3-morpholinone(M) and ε-caprolactone(CL) with zinc powder as catalyst.The influence of reaction temperature,reaction time and monomer ratio on the copolymerization reaction was studied.Investigation of monomer reaction ratio and differential scanning calorimeter (DSC) indicated that the copolymer poly(3-morpholinone-ε-caprolactone) was a block copolymer,solubility in water,degradation characteristics in vitro and controlled release of 5-FU was also studied.The results showed the hydrophilicity of the copolymer increased with the increasing of M content in the copolymer.With the enhancement of hydrophilicity its degradation rate and drug releasing rate increased as well.ZHONG Min BAI Yu LI Wei LIU Xiaoxuan QU Fanqi 2008Wuhan University Journal of Natural Sciences2008,13,2:0
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