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Wen Zhang
Jiangsu University
22Publications
7H-index
155Citations
Publications 22
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#1Wen Zhang (Jiangsu University)H-Index: 7
#2Chao Liu (Jiangsu University)
Last.Xuechao Xu (Jiangsu University)
view all 6 authors...
Abstract This work introduces an inexpensive and user-friendly electrochemical platform for heavy metal determination in liquid food. Smart-phone connectivity, solid-state-microwave flow digestion and nano-Au-modified electrode are synchronously studied. A smart phone is adopted as the information terminal for universal purposes. A solid-state-microwave digestion device is developed to provide programmable digestion for liquid food in a digestion path. Microwave power curve and flow rate in dige...
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#1Wen Zhang (Jiangsu University)H-Index: 7
#2Chao Liu (Jiangsu University)
Last.Yiwei Xu (Jiangsu University)H-Index: 6
view all 5 authors...
This work introduces a β-cyclodextrin/multi-walled carbon nanotube (β-CD/MWCNT)–modified microelectrode array (MEA) for rapid determination of imidacloprid in vegetables. The MEA, fabricated on a silicon wafer, contains 20 parallel-connected working electrodes, a counter electrode and a reference electrode. The MWCNT is drop-casted onto the working electrode area, and β-CD is decorated onto the MWCNT layer with electropolymerization. Electrochemical behaviors of the as-fabricated sensor are inve...
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#1Yiwei Xu (Jiangsu University)H-Index: 6
#2Wen Zhang (Jiangsu University)H-Index: 7
Last.Xueping Cui (Jiangsu University)H-Index: 1
view all 7 authors...
Abstract An electrode modified with pyridine functionalized gold nanoparticles and three-dimensional graphene was prepared and employed for the voltammetry determination of hexavalent chromium. Graphene oxide was electrochemically reduced on glassy carbon electrode. Gold nanoparticles were electrodeposited on the surface of graphene under constant potential. Pyridine group anchored on gold nanoparticles by self-assembly. The modified materials were characterized by scanning electron microscopy, ...
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#1Zhikun Yang (Jiangsu University)H-Index: 1
#2Xiaobo Zou (Jiangsu University)H-Index: 11
Last.Haroon Elrasheid Tahir (Jiangsu University)H-Index: 9
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The present work aimed at evaluating the efficacy of gum Arabic–based edible coating enriched with red and white roselle extracts, on the postharvest quality of blueberry fruits during storage at 4 ± 0.5 °C. Physicochemical, phytochemicals, antioxidant capability, decay percent, and microbiological analyses of coated and uncoated blueberries were performed. The change rates of polyphenol oxidase (PPO) and guaiacol peroxidase (POD) activity were also measured. The coatings (gum Arabic with or wit...
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#1Kaiyi Zheng (Jiangsu University)
#2Tao Feng (Jiangsu University)
Last.Xiaobo Zou (Jiangsu University)H-Index: 11
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Abstract A new variable selection method called double competitive adaptive reweighted sampling (Double CARS) was proposed for calibration transfer of near infrared spectra. In Double CARS, many variable subsets are generated by the calibration model of primary spectra. Then in each variable subset of primary spectra, many variable subsets of secondary spectra are also generated by the transfer set of secondary spectra. After that, the root mean square error of validation (RMSEV) of each paired ...
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#1Xuetao Hu (Jiangsu University)H-Index: 4
#2Jiyong Shi (Jiangsu University)H-Index: 8
Last.Xiaobo Zou (Jiangsu University)H-Index: 11
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Gold nanocluster@carbon nitride quantum dot nanocomposites protected by bovine serum albumin (BSA-AuNC@CNQDs) were designed as a ratiometric fluorescence nanosensor for ultra-sensitive detection of trypsin inhibitor (TI). CNQDs were prepared via thermal treatment of carbon nitride powder. BSA-CNQDs acted as templates to synthesize BSA-AuNC@CNQDs with dual-emission peaks at 450 and 650 nm. Trypsin can catalyze the hydrolysis of BSA and decompose BSA-AuNC@CNQDs resulting in fluorescence quenching....
1 CitationsSource
#1Xuetao Hu (Jiangsu University)H-Index: 4
#2Jiyong Shi (Jiangsu University)H-Index: 8
Last.Yiwei Xu (Jiangsu University)H-Index: 6
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Abstract Nitrite residue in hams was detected by a fluorescent and colorimetric sensor based on carbon dots (C-dots) and neutral red (NR). C-dots with green fluorescence was synthesized by a microwave-assisted method. This novel sensor was fabricated by C-dots as donors and NR as acceptors. The presence of nitrite led to decrease of absorbance and increase of fluorescence. Colorimetric and fluorescent methods for nitrite detection were developed with excellent correlation coefficients (R2 = 0.99...
3 CitationsSource
#1Xuetao Hu (Jiangsu University)H-Index: 4
#2Jiyong Shi (Jiangsu University)H-Index: 8
Last.Yiwei Xu (Jiangsu University)H-Index: 6
view all 9 authors...
Abstract Gold nanoparticles@Carbon quantum dots nanocomposites (Au@CQDs) were designed for analyzing melamine in milk visually. Fluorescent emission of Au@CQDs enhanced with the increase of melamine concentration. A calibration curve (R2 = 0.9856) and fluorescence standard array were established for detection of melamine in the range of 1 μM–10 μM. Limit of quantification and limit of detection were 12 nM and 3.6 nM, respectively. The approximate concentration of melamine adulterated in milk sam...
7 CitationsSource
#1Wen Zhang (Jiangsu University)H-Index: 7
#2Yiwei Xu (Jiangsu University)H-Index: 6
Last.Xiaobo Zou (Jiangsu University)H-Index: 11
view all 3 authors...
Abstract Herein, an all-solid light addressable potentiometric sensor (LAPS) is presented for determination of cadmium (Cd) in rice. On the working surface of the LAPS, reduced graphene oxide (RGO) is introduced as a part of ion-to-electron transducer to improve ionophore behaviors. The composite modification of RGO and ionophore is validated with scanning electron microscopy. The as-fabricated sensor presents a rapid response in less than 10 s to target Cd. Meanwhile, it shows lower noise (0.23...
2 CitationsSource
#1Yongqiang Shi (Jiangsu University)H-Index: 3
#2Zhihua Li (Jiangsu University)H-Index: 7
Last.Xiaobo Zou (Jiangsu University)H-Index: 11
view all 9 authors...
Abstract A novel and low-cost micro-sensor with a diameter of 12 μm was developed based on Titanium dioxide-Polyaniline/Silk fibroin fiber (TiO 2 -PANI/SFF). TiO 2 -PANI composites were deposited on surfaces of SFFs by in-situ polymerization. The microfibers were characterized by Scanning electron microscopy (SEM), Energy dispersive spectrometer (EDS), Raman spectrometer, Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD), and the formation mechanism of them was illustrat...
7 CitationsSource
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