- 作 者: ( "chengguo hu" OR "cheng-guo hu" )
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Photosensitive-Stamp-Inspired Scalable Fabrication Strategy of Wearable Sensing Arrays for Noninvasive Real-Time Sweat AnalysisAnalytical Chemistry (IF 8.008) Pub Date : 2022-03-03 ,DOI:10.1021/acs.analchem.2c00593Junxing Hao, Zeqiang Zhu, Chengguo Hu, Zhihong LiuWearable sweat sensing is essential to the development of personalized health monitoring in a noninvasive manner with molecular-level insight. Hence, there is an increasing demand for convenient, facile, and efficient fabrication of wearable sensing arrays. Inspired by a photosensitive stamp (PS), we present herein a simple, low-cost, and eco-friendly vacuum filtration–transfer printing method (termed ...
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Laser-scribed graphene sensors on nail polish with tunable composition for electrochemical detection of nitrite and glucoseSensors and Actuators B: Chemical (IF 9.221) Pub Date : 2022-01-08 ,DOI:10.1016/j.snb.2022.131394Na Zhang, Jia Yang, Chengguo HuLaser-induced graphene (LIG) techniques enable the direct laser writing or scribing of conductive graphene electrodes on insulative polymer substrates without complicated synthesis or fabrication processes. The precursors of LIG essentially determine its quality and applications in various fields including electrochemical devices. Here, we demonstrate that the widely used nail polish (NP) is a promising ...
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Light-Addressable Paper-Based Photoelectrochemical Analytical Device with Tunable Detection Throughput for On-Site BiosensingAnalytical Chemistry (IF 8.008) Pub Date : 2022-01-03 ,DOI:10.1021/acs.analchem.1c04907Min Liu, Jia Yang, Juan Wang, Zhihong Liu, Chengguo Hu
Development of biosensing systems resembling optical 96-well plates using portable single-channel electrochemical analyzers is usually a great challenge. Herein, a light-addressable paper-based photoelectrochemical (PEC) analytical device suitable for on-site high-throughput biosensing is reported. This device consists of a solar cell-type single-channel PEC system with plenty of separated detection
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Disposable carbon nanotube-based antifouling electrochemical sensors for detection of morphine in unprocessed coffee and milkJournal of Electroanalytical Chemistry (IF 4.598) Pub Date : 2021-12-31 ,DOI:10.1016/j.jelechem.2021.115997Jia Yang, Danting He, Na Zhang, Chengguo HuThe direct on-site detection of illegal additives in unprocessed food samples is usually a great challenge for electrochemical sensors because of electrode biofouling. In this work, a simple filtration method for the scalable fabrication of disposable single-walled carbon nanotubes (SWCNTs)-based antifouling electrochemical sensors is reported. This method employs flash foam stamp-assisted polydimethylsiloxane ...
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Multiple Fractures of Cervical Vertebrae Combined with Arcuate Foramen and Vertebral Artery Occlusion: A Case Report and Literature ReviewOrthopaedic Surgery (IF 2.279) Pub Date : 2020-12-03 ,DOI:10.1111/os.12868Wei‐hao Wang, Zhao‐yong Liu, Huan‐cheng Guo, Hu Wang
The arcuate foramen is a complete or partial bony bridge over the vertebral artery groove of atlas. The mechanism of the arcuate foramen is not clearly understood. Omission of the arcuate foramen sometimes causes lethal iatrogenic injury during spinal surgery.
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Experimental Study on the Fracture Evolution Processof Rock-like Specimens Containing a Closed RoughJoint Based on 3D-Printing TechnologyAdvances in Civil Engineering (IF 1.843) Pub Date : 2020-11-30 ,DOI:10.1155/2020/8889606Jiawei Liu, Haijian Su, Hongwen Jing, Chengguo Hu, Qian Yin
In order to overcome the disadvantage of traditional joint fabrication method—inability to reproduce the rough surfaces of practical rock joints—3D-printing technology was applied to restructure five kinds of rough joint according to the failure surface formed by the triaxial prepeak unloading test in this study. And uniaxial compression test was carried out on the rock-like specimens containing closed
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Detection of Tumor Marker Using ZnO@Reduced Graphene Oxide Decorated with Alkaline Phosphatase-Labeled Magnetic BeadsACS Applied Nano Materials (IF 6.14) Pub Date : 2019-11-22 ,DOI:10.1021/acsanm.9b01797Junxing Hao,Caoling Li,Kangbing Wu,Chengguo Hu,Nianjun YangThe magnetic-bead-based electrochemical enzyme-linked immunoassay (MB-eElisa) represents an attractive approach to develop cost-effective systems that are suitable for sensing complex biological samples. Its sensitivity essentially depends on the transduction efficiency of enzyme catalytic reactions into electrochemical responses. Here, an ultrahigh signal-to-noise alkaline phosphatase (ALP)-based ...
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Detection of Tumor Marker Using [email protected] Graphene Oxide Decorated with Alkaline Phosphatase-Labeled Magnetic BeadsACS Applied Energy Materials (IF 6.959) Pub Date : 2019-11-11 ,DOI:10.1021/acsanm.9b01797Junxing Hao, Caoling Li, Kangbing Wu, Chengguo Hu, Nianjun YangThe magnetic-bead-based electrochemical enzyme-linked immunoassay (MB-eElisa) represents an attractive approach to develop cost-effective systems that are suitable for sensing complex biological samples. Its sensitivity essentially depends on the transduction efficiency of enzyme catalytic reactions into electrochemical responses. Here, an ultrahigh signal-to-noise alkaline phosphatase (ALP)-based ...
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Laser-Cut Polymer Tape Templates for Scalable Filtration Fabrication of User-Designed and Carbon-Nanomaterial-Based Electrochemical SensorsACS Sensors (IF 9.618) Pub Date : 2018-11-07 ,DOI:10.1021/acssensors.8b00639Mengmeng Song,Lantu Dang,Juan Long,Chengguo HuWe report here a simple filtration method for the scalable fabrication of user-designed and carbon-nanomaterial-based electrode arrays using laser-cut poly(vinyl chloride) (PVC) tape templates. This method can produce electrode arrays with high uniformity and low resistance from the dilute dispersions of single-walled carbon nanotubes (SWNTs) and graphene nanoplatelets (GNPs). For these two carbon ...
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Portable, Self-Powered, and Light-Addressable Photoelectrochemical Sensing Platforms Using pH Meter Readouts for High-Throughput Screening of Thrombin Inhibitor DrugsAnalytical Chemistry (IF 8.008) Pub Date : 2018-07-12 ,DOI:10.1021/acs.analchem.8b01979Juan Wang,Mengmeng Song,Chengguo Hu,Kangbing WuIn this work, a self-powered, portable, and light-addressable photoelectrochemical sensor (P-LAPECS) is developed for efficient drug screening using a handheld pH meter readout. The sensor, which employs thrombin inhibitors as the drug model, is constructed by evenly immobilizing biotin-labeled and thrombin-cleavable peptides on eight separated sensing zones of a single gold film electrode. The incubation ...
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Rapid, efficient and economic removal of organic dyes and heavy metals from wastewater by zinc-induced in-situ reduction and precipitation of graphene oxideJournal of the Taiwan Institute of Chemical Engineers (IF 5.477) Pub Date : 2018-04-07 ,DOI:10.1016/j.jtice.2018.03.045Junxing Hao, Liudi Ji, Caoling Li, Chengguo Hu, Kangbing WuA graphene oxide (GO) reduction-based method for rapid, efficient and economic removal of organic dyes and heavy metal ions is reported. This method is performed by adding GO, Zn powder and NH4Cl into wastewater and stirring the solution at ambient conditions for a short period (< 10 min). During this process, NH4Cl catalyzes the reduction of GO by Zn powder and causes the rapid in-situ adsorption ...
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Tuning electrochemical behaviors of N-methyl-2-pyrrolidone liquid exfoliated graphene nanosheets by centrifugal speed-based gradingCarbon (IF 11.307) Pub Date : 2018-04-01 ,DOI:10.1016/j.carbon.2017.11.100Piaopiao Wei, Jian Shen, Kangbing Wu, Chengguo HuAbstract We report on the study of the electrochemical behavior of liquid exfoliated graphene nanosheets (GS) with varied sizes and thickness by controlling centrifugal speed. GS were prepared via a solvent exfoliation and centrifugation separation method from graphite powder using N-methyl-2-pyrrolidone (NMP) as the solvent and with the assistance of sodium citrate. Scanning electron microscopy (SEM) ...
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Visible light laser-induced graphene from phenolic resin: A new approach for directly writing graphene-based electrochemical devices on various substratesCarbon (IF 11.307) Pub Date : 2018-02-01 ,DOI:10.1016/j.carbon.2017.11.014Zhuchan Zhang, Mengmeng Song, Junxing Hao, Kangbing Wu, Chunya Li, Chengguo HuThe cost-effective construction of self-designed conductive graphene patterns on desired substrates is crucial to the fabrication of graphene-based electrochemical devices. Here, we report a new approach for the scalable construction of laser-induced graphene (LIG) patterns on diverse substrates by using phenolic resin (PR) as the precursor. The PR-based LIG, which was produced with smart and inexpensive ...
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Enhancing the performance of NaNbO3triboelectric nanogenerators by dielectric modulation and electronegative modificationJournal of Physics D: Applied Physics (IF 3.409) Pub Date : 2017-12-08 ,DOI:10.1088/1361-6463/aa9a6cMeihui Lai,Lu Cheng,Yi Xi,Yinghui Wu,Chengguo Hu,Hengyu Guo,Bolun Du,Guanlin Liu,Qipeng Liu,Ruchuan LiuIncreasing the triboelectric charge density on the friction layer of polydimethylsiloxane (PDMS) is a basic approach towards improving the output performance of a triboelectric nanogenerator (TENG). Most previous work focuses on the surface structure or dielectric properties, nonetheless, a few studies have focused on electronegative modification. NaNbO3-PDMS TENG (N-TENG) devices are fabricated by ...
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High-yield ball-milling synthesis of extremely concentrated and highly conductive graphene nanoplatelet inks for rapid surface coating of diverse substratesCarbon (IF 11.307) Pub Date : 2017-08-01 ,DOI:10.1016/j.carbon.2017.05.065Zhuchan Zhang, Jiaojiao Sun, Can Lai, Quan Wang, Chengguo HuAbstract Highly conductive graphene nanoplatelet (GNP) inks for the rapid surface coating of diverse substrates are prepared by a simple ball-milling method. The method which employs direct yellow 50 (DY50) as a modifier is able to prepare a DY50-decorated GNP nanohybrid (GNP-DY50) from graphite with high production yield (∼100%), high conductivity (up to 3.5 × 104 S/m), high dispersion concentration ...
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Label-free and high-throughput biosensing of multiple tumor markers on a single light-addressable photoelectrochemical sensorBiosensors and Bioelectronics (IF 12.545) Pub Date : 2016-12-16 ,DOI:Juan Wang, Juan Long, Zhihong Liu, Wangze Wu, Chengguo HuThe sensitive and label-free detection of multiple biomarkers on a single electrode by photoelectrochemical (PEC) sensors based on light addressing strategies is very attractive for developing portable and high-throughput biosensing systems. The essential prerequisite of this proposal is the employment of uniform photovoltaic material modified electrodes with high conversion efficiency. Herein, a novel ...
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Label-free and high-throughput biosensing of multiple tumor markers on a single light-addressable photoelectrochemical sensorBiosensors and Bioelectronics (IF 12.545) Pub Date : 2016-12-13 ,DOI:10.1016/j.bios.2016.12.029Juan Wang,Juan Long,Zhihong Liu,Wangze Wu,Chengguo HuThe sensitive and label-free detection of multiple biomarkers on a single electrode by photoelectrochemical (PEC) sensors based on light addressing strategies is very attractive for developing portable and high-throughput biosensing systems. The essential prerequisite of this proposal is the employment of uniform photovoltaic material modified electrodes with high conversion efficiency. Herein, a novel ...
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Photoelectrochemistry and sensor of NO based on a supramolecular system composed of polyhydroquinone and fullereneSensors and Actuators B: Chemical (IF 9.221) Pub Date : 2016-01-24 ,DOI:10.1016/j.snb.2016.01.103Xueping Dang, Chengguo Hu, Huaixia Chen, Jianlin Huang, Dongyun Zheng, Shengshui HuAn electron donor–acceptor linked supramolecular system composed of polyhydroquinone (PH2Q) and fullerene (C60) was prepared and characterized by different techniques like TEM, UV–vis, XRD and photoelectrochemical photocurrent detection techniques. The photoelectrochemical properties of nitric oxide (NO) were first investigated. An enhanced cathodic photocurrent response was obtained on the PH2Q-C60 ...
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Studies on fabrication and application of arsenic electrochemical sensors based on titanium dioxide nanoparticle modified gold strip electrodesAnalytical Methods (IF 3.532) Pub Date : 2016-01-07 ,DOI:10.1039/c5ay02397aXuan Zhang,Ting Zeng,Chengguo Hu,Shengshui Hu,QiulinTian QiulinTianA sensitive electrochemical sensor for the determination of arsenic(III) based on a titanium dioxide (TiO2) nanoparticle modified gold strip electrode (GSE) was developed. The gold strip electrode was prepared by a seeded growth method using polyethylene terephthalate (PET) films as the template. This GSE can provide an excellent electrochemical performance comparable to commercial gold disk electrodes ...
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Facile synthesis of flexible gold film electrodes for highly selective photoelectrochemical sensing of ascorbic acidJournal of Electroanalytical Chemistry (IF 4.598) Pub Date : 2015-12-01 ,DOI:10.1016/j.jelechem.2015.03.027Juan Wang, Jiaojiao Sun, Chengguo Hu, Zhihong Liu, Shengshui HuAbstract A simple electroless method for fabricating inexpensive and flexible gold film electrodes was reported. The method was established by the spontaneous adsorption of gold nanoparticle (GNP) seeds on polyethylene terephthalate (PET) film substrates and the self-catalytic growth of the adsorbed GNP seeds into conductive gold layers. The resulting gold–PET composite film electrode (GPETFE) not ...
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Fully Converting Graphite into Graphene Oxide Hydrogels by Preoxidation with Impure Manganese Dioxide.ACS Applied Materials & Interfaces (IF 10.383) Pub Date : 2015-09-10 ,DOI:10.1021/acsami.5b06008Jiaojiao Sun,Ningxin Yang,Zhe Sun,Mengqi Zeng,Lei Fu,Chengguo Hu,Shengshui HuPotassium permanganate (KMnO4) has been proved to be an efficient oxidant for converting graphite into graphite oxide, but its slow diffusion in the interlayer of graphite seriously restricts the production of graphene oxide (GO). Here, we demonstrate that the preoxidation of graphite by impure manganese dioxide (MnO2) in a mixture of concentrated sulfuric acid (H2SO4) and phosphorus pentoxide (P2O5) ...
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Ultrasensitive Photoelectrochemical Biosensing of Multiple Biomarkers on a Single Electrode by a Light Addressing StrategyAnalytical Chemistry (IF 8.008) Pub Date : 2015-08-27 ,DOI:10.1021/acs.analchem.5b02148Juan Wang,Zhihong Liu,Chengguo Hu,Shengshui HuUltrasensitive multiplexed detection of biomarkers on a single electrode is usually a great challenge for electrochemical sensors. Here, a light addressable photoelectrochemical sensor (LAPECS) for the sensitive detection of multiple DNA biomarkers on a single electrode was reported. The sensor was constructed through four steps: (1) immobilization of capture DNA (C-DNA) of different targets on different ...
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3D nitrogen-doped graphene/β-cyclodextrin: host–guest interactions for electrochemical sensing†Nanoscale (IF 8.307) Pub Date : 2015-06-15 ,DOI:10.1039/c5nr03109eJilun Liu,Xuanye Leng,Yao Xiao,Chengguo Hu,Lei Fu
Host–guest interactions, especially those between cyclodextrins (CDs, including α-, β- and γ-CD) and various guest molecules, exhibit a very high supramolecular recognition ability. Thus, they have received considerable attention in different fields. These specific interactions between host and guest molecules are promising for biosensing and clinical detection. However, there is a lack of an ideal
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A three-dimensional nitrogen-doped graphene structure: a highly efficient carrier of enzymes for biosensors†Nanoscale (IF 8.307) Pub Date : 2014-12-01 ,DOI:10.1039/c4nr05325gJingxing Guo,Tao Zhang,Chengguo Hu,Lei FuIn recent years, graphene-based enzyme biosensors have received considerable attention due to their excellent performance. Enormous efforts have been made to utilize graphene oxide and its derivatives as carriers of enzymes for biosensing. However, the performance of these sensors is limited by the drawbacks of graphene oxide such as slow electron transfer rate, low catalytic area and poor conductivity ...
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Preparation of graphene oxide–fullerene/phosphotungstic acid films and their application as sensor for the determination of cis-jasmoneAnalytical Methods (IF 3.532) Pub Date : 2014-09-29 ,DOI:10.1039/c4ay01861cTian Gan,Chengguo Hu,Shengshui HuRecent progress in nanotechnology has promoted research in the surface functionalization of graphene oxide (GO) nanosheets owing to their large specific surface area and abundant functional groups. In the present work, cage-structured fullerene (C60) was attached non-covalently to laminar GO through simple grinding, which not only achieved the efficient solubilization of C60 in water but also retained ...
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Rapid in Situ Detection of Ultratrace 2,4-Dinitrotoluene Solids by a Sandwiched Paper-like Electrochemical SensorAnalytical Chemistry (IF 8.008) Pub Date : 2014-08-05 ,DOI:10.1021/ac501973xJuan Wang,Wei Jin,Xing Zhang,Chengguo Hu,Qingying Luo,Yi Lin,Shengshui HuThis work reported the rapid in situ detection of ultratrace 2,4-dinitrotoluene (DNT) solids on various substrates by a sandwiched paper-like electrochemical sensor. The sensor, prepared by a simple electroless deposition method without using special instruments, possessed a unique thin-film structure of an insulated polyvinylidene fluoride (PVDF) membrane in between two gold (Au) conducting layers ...
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Preparation and application of a novel electrochemical sensing material based on surface chemistry of polyhydroquinone.Materials Science and Engineering: C (IF 8.457) Pub Date : 2014-03-26 ,DOI:10.1016/j.msec.2014.03.039Xueping Dang,Yingkai Wang,Chengguo Hu,Jianlin Huang,Huaixia Chen,Shengfu Wang,Shengshui HuA new analogue of polydopamine (PDA), i.e., polyhydroquinone (PH2Q), was polymerized and its surface chemistry was studied by different ways of characterization. PH2Q was produced by the self-polymerization of H2Q mediated by dissolved oxygen, and the self-polymerization process was strongly dependent on the type and the pH value of the buffer solutions. PH2Q can not only achieve surface hydrophilization ...
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Ultrasensitive All-Carbon Photoelectrochemical Bioprobes for Zeptomole Immunosensing of Tumor Markers by an Inexpensive Visible Laser LightAnalytical Chemistry (IF 8.008) Pub Date : 2013-10-11 ,DOI:10.1021/ac4028005Chengguo Hu,Jinou Zheng,Xiaoyang Su,Juan Wang,Wangze Wu,Shengshui HuA novel enzyme-free and all-carbon photoelectrochemical (PEC) bioprobe, based on carboxylated multiwalled carbon nanotube–Congo red–fullerene nanohybrids (MWNTCOOH–CR–C60), for the ultrasensitive immunosensing of carcinoembryonic antigen (CEA) was reported. The MWNTCOOH–CR–C60 nanohybrids, prepared by mechanically grinding a mixture of MWNTCOOH, C60, and CR at a certain mass ratio, had good water dispersibility ...
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Capillary microextraction combined with fluorinating assisted electrothermal vaporization inductively coupled plasma optical emission spectrometry for the determination of trace lanthanum, europium, dysprosium and yttrium in human hair.Talanta (IF 6.556) Pub Date : 2013-09-24 ,DOI:10.1016/j.talanta.2013.05.044Shaowei Wu,Chengguo Hu,Man He,Beibei Chen,Bin HuIn this work, a congo red modified single wall carbon nanotubes (CR-SWCNTs) coated fused-silica capillary was prepared and used for capillary microextraction (CME) of trace amounts of lanthanum (La), europium (Eu), dysprosium (Dy) and yttrium (Y) in human hair followed by fluorinating assisted electrothermal vaporization-inductively coupled plasma-optical emission spectrometry (FETV-ICP-OES) determination ...
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