CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Tianyao Shen,Xiaojing Wang,Jiaqin Li,Chunyan Yang,Peng Xu,Hua Chai,Peng Wang,Guangshan Zhang
Dielectric barrier discharge plasma (DBDP) has attracted much attention because of its energy saving, high efficiency, and simultaneous production of various active substances. In this work, a three-dimensional (3D) ZnFe-layered double hydroxides (LDH)/nickel foam (NiF) was rationally engineered and synthesized to overcome the problem of active substances insufficient use and clogged pipes in DBDP. With the assistance of ZnFe-LDH/NiF, the removal efficiency of diuron (DUR) increased from 85.98 % to 96.52 %, and the energy efficiency increased from 1074 mg·kWh −1 to 1281 mg·kWh −1 . In various circumstances, the DBDP + ZnFe-LDH/NiF process performed a strong anti-interference ability, high stability, and reusability. The improvement of catalytic degradation ability could be attributed to the combined action of the Fenton-like process and O 3 catalysis, all three elements participating in the electron transfer. With the help of quenching experiments, reactive oxygen species (ROS, including OH, 1 O 2 , and O 2 − ) were identified as the dominant active substance, significantly contributing to DUR elimination. Density functional theory calculation (DFT) and quadrupole-time of flight-liquid chromatography/mass spectrometry (Q-TOF-LC/MS) reached the same conclusion that C N and C−Cl were the main sites attacked by electrophiles and radicals. In summary, the combination of DBDP and ZnFe-LDH/NiF sheds new light on catalyst design and DBDP application.
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高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 10
·期 1
·2200738
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IF 6.389
Bo Wu,Minzhang Li,Rajendran Ramachandran,Gaoqiang Niu,Mingxiang Zhang,Changhui Zhao,Zongxiang Xu,Fei Wang
Dopamine (DA) and uric acid (UA) are biomolecules of great consideration that coexist in human body. It is essential and challenging to detect them simultaneously with high sensitivity. This paper reports a novel electrochemical biosensor based on the nanocomposites of cobalt phthalocyanine (CoPc) anchored with graphene quantum dots (GQDs) for DA and UA detection. The GQDs incorporation on CoPc nanorods with partial end stretching significantly enhances the electrocatalytic activity and promotes the electron transfer rate. Low detection limits of 21 n m for DA and 145 n m for UA have been successfully achieved for the fabricated CoPc/GQDs biosensor. The density-functional theory proves the enhanced conductivity of CoPc/GQDs and the biomolecule's interaction with the electrode surface. Furthermore, the proposed sensor shows remarkable reproducibility, repeatability, and stability. The fabricated sensor is applied for the simultaneous detections of DA and UA in human urine samples. The excellent performance suggests that the CoPc/GQDs could be a promising and potential candidate for electrochemical sensors to detect DA and UA selectively.
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高影响因子
CARBOHYDRATE POLYMERS
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2022
·
IF 10.723
Lili Dong,Suxia Ren,Xiuqiang Zhang,Yantao Yang,Qinglin Wu,Tingzhou Lei
In recent years, nanocellulose-based bioinorganic nanohybrids have been exploited in numerous applications due to their unique nanostructure , excellent catalytic properties, and good biocompatibility. To the best of our knowledge, this is the first report on the simple and effective synthesis of graphene/cellulose (RGO/CNC) matrix-supported platinum nanoparticles (Pt NPs) for nonenzymatic electrochemical glucose sensing. The Pt/RGO/CNC nanohybrid presented a porous network structure, in which Pt NPs, RGO, and CNCs were integrated well. Here, cellulose nanocrystals act as a biocompatible framework for wrapped RGO and monodispersed Pt nanoparticles , effectively preventing the restacking of graphene during reduction. The superior glucose sensing performance of Pt/RGO/CNC modified glass carbon electrode (GCE) was achieved with a linear concentration range from 0.005 to 8.5 mM and a low detection limit of 2.1 μM. Moreover, the Pt/RGO/CNC/GCE showed remarkable sensitivity, selectivity, durability, and reproducibility. The obtained results indicate that the CNCs-based bioinorganic nanohybrids could be a promising electrode material in electrochemical biosensors.
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PubMed
高影响因子
MOLECULES
·
2022
·Vol. 27
·期 23
·8200
·
IF 4.927
Qianqian Han,Tongtong Zhang,Meifang Wang,Fei Yan,Jiyang Liu
Rapid and highly sensitive quantitative analysis of chlorpromazine (CPZ) in human whole blood is of great importance for human health. Herein, we utilize the screen-printed carbon electrodes (SPCE) as the electrode substrates for growth of highly electroactive and antifouling nanocomposite materials consisting of vertically ordered mesoporous silica films (VMSF) and electrochemically reduced graphene oxide (ErGO) nanosheets. The preparation of such VMSF/ErGO/SPCE could be performed by using an electrochemical method in a few seconds and the operation is controllable. Inner ErGO layer converted from graphene oxide (GO) in the growth process of VMSF provides oxygen-containing groups and two-dimensional π-conjugated planar structure for stable fabrication of outer VMSF layer. Owing to the π-π enrichment and excellent electrocatalytic abilities of ErGO, electrostatic preconcentration and antifouling capacities of VMSF, and inherent disposable and miniaturized properties of SPCE, the proposed VMSF/ErGO/SPCE sensor could be applied for quantitative determination of CPZ in human whole blood with high accuracy and sensitivity, good stability, and low sample consumption.Keywords:vertically ordered mesoporous silica films;screen-printed carbon electrodes;electrochemically reduced graphene oxide;chlorpromazine;electrochemical sensors;human whole blood
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高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Weijie Fu,Kai Zhang,Xiaohua Zhang,Guorong Fan,Zongde Wang,Shangxing Chen,Yangping Wen,Peng Wang
Transition metal sulfide functionalized hierarchically porous carbons as colorimetric-electrochemical dual-mode nanozyme sensing platform for the visual qualitative colorimetric and quantitative electrochemical detection of dopamine (DA) are synthesized by hydrothermal method using Chinese fevervine herb rich in sulfur as the carbon source and sulfur source, and different transition metal chlorides as the metal sources. The introduction of FeCl 3 is more favorable to the generation of micropores, while the introduction of other transition metal chlorides is beneficial to the generation of mesopores and macropores. FeS 2 functionalized hierarchically porous carbon (FSPC) with large specific surface area shows better conductivity, more excellent electrocatalytic ability, and higher peroxidase-like and oxidase-like activities. The inhibitory colorimetric assay for DA designed by the oxidase-like properties of FSPC without the intervention of H 2 O 2 , making the reaction system more stable. FSPC displays excellent electrochemical responses for DA with about 50-fold peak current compared with bare electrode, and possesses a low detection limit of 0.015 μM (S/ N = 3) in a wide linear range of 0.05–1000 μM. This work will provide a new idea for the nanozyme sensing of DA with colorimetric-electrochemical dual-mode and a new possibility for application in clinical medicine.
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高影响因子
Chemosensors
·
2022
·Vol. 10
·期 11
·458
·
IF 4.229
Jianhui Xiong,Yuxi Yang,Linyu Wang,Shouhui Chen,Yan Du,Yonghai Song
A series of electrochemical sensors based on metal-porous carbon nanozymes were developed for the detection of dopamine (DA), uric acid (UA) and furazolidone (FZ). The metal-porous carbon nanozymes were prepared by calcination of porous crystalline covalent-organic frameworks (COFs) loaded metal ions. By carbonizing, the COFs was transformed into carbon nanosheets (CN) and metal ions were reduced into 5–10 nm MNPs loaded on CN uniformly (CuNPs/CN, FeNPs/CN, NiNPs/CN and CoNPs/CN). These porous MNPs/CN nanozymes were used for electrochemical detection of DA, AA and FZ, showing good performance. The electrochemical sensor based on CuNPs/CN nanozymes was used to simultaneously measure DA and UA. The linear range of DA detection was 0.015 μ–140 μM, the linear range of UA detection was 0.03 μM–175 μM, and the sensitivity of DA and UA were 1.03 μA μM−1cm−2and 0.52 μA μM−1cm−2. The sensitivity of sensors based on FeNPs/CN, CoNPs/CN and NiNPs/CN nanozymes to detect DA were 1.30 μA cm−2μM−1, 1.07 μA cm−2μM−1and 0.88 μA cm−2μM−1, the linear ranges were 35 nM–200 μM, 42 nM–250 μM and 52 nM–250 μM. The sensitivity of detecting UA were 0.310 μA cm−2μM−1, 0.587 μA cm−2μM−1and 0.360 μA cm−2μM−1, the linear ranges were 145 nM–900 μM, 77 nM–700 μM and 125 nM–800 μM. Finally, CuNPs/CN was also used to construct a FZ sensor with a linear range of 61.5 nM–200 μΜ and a detection limit of 20.1 nM. The sensors also have good reproducibility and repeatability.Keywords:electrochemical sensor;covalent-organic framework;nanozymes;carbon nanosheets
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高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Shanshan Zhan,Caihong Xu,Jiandan Chen,Qi Xiao,Zhenzeng Zhou,Zhiyuan Xing,Chunchuan Gu,Zhengzhi Yin,Hongying Liu
Epinephrine (EP) is an important neurotransmitter that plays a vital role in mammalian central nervous and hormone systems. So, the monitoring of EP is significant to evaluate human health. Until now, developing new methods for detecting EP has attracted increasing interest to avoid the previous disadvantages, such as high cost, long time-consuming, and professional operation. Acupuncture is a kind of traditional Chinese treatment. Herein, stainless steel needle, an acupuncture tool, was used as an electrochemical matrix and functionalized to be a simple, effective sensor for detecting EP. The acupuncture needle showed a typical electrochemical behavior. Gold nanoparticles coordinated polydopamine-modified acupuncture needle (AuNPs/PDA/AN) was fabricated via the green route of pure electron-transfer induced reaction of electrodepositing. The covered interface exhibited synergistic response performance to EP. The electron transfer of the phenolic hydroxyl group in EP molecular was enhanced via the superficial active site, showing the notable current peak. The generated current intensity can be used as an index to reflect the corresponding concentration. Under the optimized conditions, the fabricated biosensor expressed a wide and good linear relationship from 1 μM to 1000 μM, and a detection limit of 0.26 μM, which are competitive with former relative reports. In practical application, the fabricated sensor has been effectively used to analyze EP in real human serum, and also realized the real-time detection of EP secreted by PC12 cells irritated by salbutamol. The sensor was found to perform high selectivity , stability, and reproducibility, which is promising in the future given the advantages of electrochemical sensors , including low price, fast response, and simple operation.
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高影响因子
ANALYST
·
2022
·Vol. 147
·期 24
·5670-5679
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IF 5.227
Ziyan Song,Siyu Chen,Qiushi He,Hu Liang,Guangyao Huang,Pan Li,Zongyao Hao,Liangbao Yang
The rapid and sensitive detection of ultra-trace marker molecules from biological samples is of great significance for the wide application of surface-enhanced Raman spectroscopy (SERS) methods in clinical diagnosis and disease monitoring. However, the cumbersome biological sample processing procedures and the poor enrichment of target analytes in hot spots hinder the practical applications of SERS methods. In this paper, we synthesized a novel floating SERS substrate by a simple one-step oxidation process, annealing and in situ chemical etching to form Ag-NPs@Cu-NW bundles on copper mesh (CM). In particular, under spontaneous bottom-up capillary action, the pressure difference at different nanogaps drives uric acid molecules to actively enter hot spots, so that the Ag-NPs@Cu-NW bundle nanostructure with the advantages of a light weight CM is capable of preventing the common coffee-ring effect and enhancing the spatial enrichment of analytes. Therefore, this SERS substrate realizes highly sensitive detection of uric acid at a level of 50 nM in pretreatment-free urine. Currently, this portable, flexible, simple, fast and cost-effective SERS substrate has great potential for early screening and clinical diagnosis of diseases in different biofluids.
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高影响因子
NEW JOURNAL OF CHEMISTRY
·
2022
·Vol. 46
·期 47
·22778-22785
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IF 3.925
Xiaozhi Li,Jutao Qiao,Dan Luo,Siyi Xu,Yuefeng Liu,Hao Liu
In this study, Ni nanoparticles were grown on a silver-coated nylon yarn (SCNY) surface by electrochemical deposition to prepare SCNY@Ni. The hierarchical Ni–Ag nanostructure promoted their synergistic effect, which enhanced the electrocatalytic behavior of glucose oxidation. The test result of SCNY@Ni showed its high sensitivity (115.26 μA mM−1 cm−2 and 67.37 μA mM−1 cm−2) with a wide linear response (from 2 μM to 1 mM and from 1 mM to 22 mM) of glucose con-centration range, a low detection limit (LOD) of 2 μM, fast response time (3 s), and good selectivity for glucose determination in the presence of sucrose (SU), aceta-mino phenol (AP), D-fructose (D-Fru), ascorbic acid (AA), dopamine (DA), hydro-quinone (HQ) and uric acid (UA) as potential interference species. Also, SCNY@Ni exhibited excellent stability, repeatability, reproducibility and flexibility. It has good prospects for large-scale production.
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高影响因子
Materials Today Chemistry
·
2022
·
IF 7.613
X. Liu,J. Song,B. Yin,T. Jiang,H. Pang,L. Yang,S. Wu
Ascorbic acid (AA) is a critical nutrition and chemical for humans, due to its crucial role in metabolic processes and medical treatments. It is necessary to develop a simple and rapid method for real-time tracking AA level in the body. In this work, we fabricated a powerless, gas-permeable, flexible and transparent AA biosensor based on carbon micromesh electrode (CME). The AA biosensor worked without an external power supply and exhibited excellent performances, including high transmittance (>95%), wide detection range (1 μM–1 mM), low limit of detection (10 nM), good selectivity and long-term storage stability (30 days). In addition, we integrated a pH-sensing electrode to correct the AA analysis. A layer of polyaniline (PANI) film was electrodeposited on the carbon micromesh as pH-sensing electrode that had an average sensitivity of 58.1 mV/pH with a high correlation coefficient ( R 2 = 0.997) within the physiological range of human body fluids (pH 4.0–8.7). To verify the availability of the CME in practical application, the Ag/C electrode was used as reference electrode to fabricate the integrated dual-functional biosensors for artificial tears detection. The CME-based biosensors showed good sensitivity, selectivity and correlation coefficient, indicating its excellent practicability towards wearable electronics.
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高影响因子
ChemElectroChem
·
2023
·Vol. 10
·期 6
·e202201129
·
IF 4
Peng Lei,Ying Zhou,Xincheng Sun,Chuan Dong,Yinghe He,Yang Liu,Shaomin Shuang
Graphical Sweet nanospheres : Glucose-derived carbon nanospheres (CNs) synthesized by a simple hydrothermal approach were employed for electrochemical determination of dopamine. The CNs-modified glassy carbon electrode exhibits excellent sensing performance and satisfactory results when applied in human serum samples, making it promising for biomedical applications. The detection of dopamine (DA) has received enormous attention since it is widely recognized as an important neurotransmitter associated with nerve signaling and some diseases. In this work, glucose-derived carbon nanospheres (CNs) are synthesized by the green hydrothermal approach and are served to modify electrodes for the detection of DA. The CNs were successfully synthesized and were investigated in detail by various characterization technologies. The CNs modified glassy carbon electrode (CNs/GCE) exhibits better electrochemical sensing performance with a wide linear range of 0.05–1600 μM and a low limit of 8.3 nM for determination of DA, as compared with the modified electrodes reported previously. The CNs/GCE was successfully applied to detect DA in human serum samples, which makes it promising for a variety of biomedical applications. More importantly, this work shows a novel green and simple strategy for the development of cost-effective and high-performance sensing materials, which provides more opportunities for design of electrochemical sensors with future capabilities of mass production in practical applications.
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高影响因子
COLLOID AND POLYMER SCIENCE
·
2023
·Vol. 301
·期 3
·229-237
·
IF 2.4
Yang Xiaoliang,Huo Chaofei,Ji Yuting,Xu Sheng,Zhang Cuige,Xia Chunmiao,Liu Huan,Zhang Rongli,Jin Ying,Miao Zongcheng
Thermo-responsive lysozyme/calcium alginate- g -poly-N-isopropylacrylamide nanohydrogels (Lys/CA- g -PNIPAAm NHs) were prepared from the self-assembly of Lys and sodium alginate- g -poly-N-isopropylacrylamide (SA-g-PNIPAAm) and the ionic cross-linking of CaCl 2 in aqueous solution. The Lys/CA- g -PNIPAAm NHs were immobilized on the cleaned surface of a transducer to fabricate a Lys molecularly imprinted sensor (Lys@MIP NHs sensor), which can selectively rebind to Lys in a mixture of closely related compounds. The effects of temperature on the size and the morphology of the Lys/CA- g -PNIPAAm NHs, the removal of Lys templates, the rebinding of Lys targets, and the detection performance of the Lys@MIP NHs sensor were investigated by dynamic light scattering, transmission electron microscope, and differential pulse voltammetry measurements. Compared with other Lys sensors, the fabricated Lys@MIP NHs sensor exhibited the wide linear range from 1 × 10 −9 to 1 × 10 −3 mg·mL −1 at 30 °C and showed short analysis times, high accuracy, satisfactory selectivity, stability, repeatability, reproducibility, and practical application for Lys detection in urine sample. Graphical Abstract
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危险品化学品经营许可证（带存储）