1
|
Li X, Shi F, Wang L, Zhang S, Yan L, Zhang X, Sun W. Electrochemical Biosensor Based on Horseradish Peroxidase and Black Phosphorene Quantum Dot Modified Electrode. Molecules 2023; 28:6151. [PMID: 37630403 PMCID: PMC10459736 DOI: 10.3390/molecules28166151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/09/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023] Open
Abstract
Black phosphorene quantum dots (BPQDs) were prepared by ultrasonic-assisted liquid-phase exfoliation and centrifugation with morphologies proved by TEM results. Furthermore, an electrochemical enzyme sensor was prepared by co-modification of BPQDs with horseradish peroxidase (HRP) on the surface of a carbon ionic liquid electrode (CILE) for the first time. The direct electrochemical behavior of HRP was studied with a pair of well-shaped voltammetric peaks that appeared, indicating that the existence of BPQDs was beneficial to accelerate the electron transfer rate between HRP and the electrode surface. This was due to the excellent properties of BPQDs, such as small particle size, high interfacial reaction activity, fast conductivity, and good biocompatibility. The presence of BPQDs on the electrode surface provided a fast channel for direct electron transfer of HRP. Therefore, the constructed electrochemical HRP biosensor was firstly used to investigate the electrocatalytic behavior of trichloroacetic acid (TCA) and potassium bromate (KBrO3), and the wide linear detection ranges of TCA and KBrO3 were 4.0-600.0 mmol/L and 2.0-57.0 mmol/L, respectively. The modified electrode was applied to the actual samples detection with satisfactory results.
Collapse
Affiliation(s)
- Xiaoqing Li
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
- College of Health Sciences, Shandong University of Traditional Chinese Medicine, Jinan 250355, China
| | - Fan Shi
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
| | - Lisi Wang
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
| | - Siyue Zhang
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
| | - Lijun Yan
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
| | - Xiaoping Zhang
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
| | - Wei Sun
- Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou 571158, China; (X.L.); (F.S.); (L.W.); (S.Z.); (L.Y.); (X.Z.)
| |
Collapse
|
2
|
Gomez Cardoso A, Rahin Ahmed S, Keshavarz-Motamed Z, Srinivasan S, Reza Rajabzadeh A. Recent advancements of nanomodified electrodes - Towards point-of-care detection of cardiac biomarkers. Bioelectrochemistry 2023; 152:108440. [PMID: 37060706 DOI: 10.1016/j.bioelechem.2023.108440] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 04/04/2023] [Accepted: 04/05/2023] [Indexed: 04/17/2023]
Abstract
The increasing number of deaths from cardiovascular diseases has become a substantial concern in both developed and underdeveloped countries. Rapid and on-site monitoring of this disease is urgently important to control, prevent and make awareness of public health. Recently, a lot of focus has been placed on nanomaterials and modify these nanomaterials have been explored to detect cardiac biomarkers. By implementing biosensors that are modified with novel recognition elements and more stable nanomaterials, the use of electrochemistry for point-of-care devices is more realistic every day. This review focuses on the current state of nanomaterials conjugated biorecognition elements (enzyme integrated with nanomaterials, antibody conjugated nanomaterials and aptamer conjugated nanomaterials) for electrochemical cardiovascular disease detection. Specifically, a lot of attention has been given to the trends toward more stable biosensors that have increased the potential to be used as point-of-care devices for the detection of cardiac biomarkers due to their high stability and specificity. Moreover, the recent progress on biomolecule-free electrochemical nanosensors for cardiovascular disease detection has been considered. At last, the possibility and drawbacks of some of these techniques for point-of-care cardiac device development in the future have been discussed.
Collapse
Affiliation(s)
- Ana Gomez Cardoso
- Department of Mechanical Engineering, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada
| | - Syed Rahin Ahmed
- W Booth School of Engineering Practice and Technology, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada
| | - Zahra Keshavarz-Motamed
- Department of Mechanical Engineering, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada
| | - Seshasai Srinivasan
- Department of Mechanical Engineering, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada; W Booth School of Engineering Practice and Technology, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada.
| | - Amin Reza Rajabzadeh
- Department of Mechanical Engineering, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada; W Booth School of Engineering Practice and Technology, McMaster University, 1280 Main Street, West Hamilton, Ontario L8S 4L7, Canada.
| |
Collapse
|
3
|
Preparation and Application of Electrochemical Horseradish Peroxidase Sensor Based on a Black Phosphorene and Single-Walled Carbon Nanotubes Nanocomposite. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228064. [PMID: 36432164 PMCID: PMC9694212 DOI: 10.3390/molecules27228064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Revised: 10/30/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022]
Abstract
To design a new electrochemical horseradish peroxidase (HRP) biosensor with excellent analytical performance, black phosphorene (BP) nanosheets and single-walled carbon nanotubes (SWCNTs) nanocomposites were used as the modifier, with a carbon ionic liquid electrode (CILE) as the substrate electrode. The SWCNTs-BP nanocomposite was synthesized by a simple in situ mixing procedure and modified on the CILE surface by the direct casting method. Then HRP was immobilized on the modified electrode with Nafion film. The electrocatalysis of this electrochemical HRP biosensor to various targets was further explored. Experimental results indicated that the direct electrochemistry of HRP was realized with a pair of symmetric and quasi-reversible redox peaks appeared, which was due to the presence of SWCNTs-BP on the surface of CILE, exhibiting synergistic effects with high electrical conductivity and good biocompatibility. Excellent electrocatalytic activity to trichloroacetic acid (TCA), sodium nitrite (NaNO2), and hydrogen peroxide (H2O2) were realized, with a wide linear range and a low detection limit. Different real samples, such as a medical facial peel solution, the soak water of pickled vegetables, and a 3% H2O2 disinfectant, were further analyzed, with satisfactory results, further proving the potential practical applications for the electrochemical biosensor.
Collapse
|
4
|
Sun Y, Wang B, Deng Y, Cheng H, Li X, Yan L, Li G, Sun W. Reduced graphene oxide/titanium carbide
MXene nanocomposite‐modified
electrode for electrochemical hemoglobin biosensor. J CHIN CHEM SOC-TAIP 2021. [DOI: 10.1002/jccs.202100229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yunxiu Sun
- Key Laboratory of Optic‐electric Sensing and Analytical Chemistry for Life Science of Ministry of Education College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR China
| | - Baoli Wang
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
| | - Ying Deng
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
| | - Hui Cheng
- Key Laboratory of Optic‐electric Sensing and Analytical Chemistry for Life Science of Ministry of Education College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR China
| | - Xiaoqing Li
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
| | - Lijun Yan
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
| | - Guangjiu Li
- Key Laboratory of Optic‐electric Sensing and Analytical Chemistry for Life Science of Ministry of Education College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao PR China
| | - Wei Sun
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou College of Chemistry and Chemical Engineering, Hainan Normal University Haikou China
| |
Collapse
|
5
|
Abstract
Heme proteins take part in a number of fundamental biological processes, including oxygen transport and storage, electron transfer, catalysis and signal transduction. The redox chemistry of the heme iron and the biochemical diversity of heme proteins have led to the development of a plethora of biotechnological applications. This work focuses on biosensing devices based on heme proteins, in which they are electronically coupled to an electrode and their activity is determined through the measurement of catalytic currents in the presence of substrate, i.e., the target analyte of the biosensor. After an overview of the main concepts of amperometric biosensors, we address transduction schemes, protein immobilization strategies, and the performance of devices that explore reactions of heme biocatalysts, including peroxidase, cytochrome P450, catalase, nitrite reductase, cytochrome c oxidase, cytochrome c and derived microperoxidases, hemoglobin, and myoglobin. We further discuss how structural information about immobilized heme proteins can lead to rational design of biosensing devices, ensuring insights into their efficiency and long-term stability.
Collapse
|
6
|
Cheng H, Liu J, Sun Y, Zhou T, Yang Q, Zhang S, Zhang X, Li G, Sun W. A fungus-derived biomass porous carbon-MnO 2 nanocomposite-modified electrode for the voltammetric determination of rutin. RSC Adv 2020; 10:42340-42348. [PMID: 35516740 PMCID: PMC9057972 DOI: 10.1039/d0ra05739h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 10/03/2020] [Indexed: 11/21/2022] Open
Abstract
In this study, we designed a simple procedure for the synthesis of fungus-derived biomass porous carbon (FBPC), which was further used to prepare a MnO2@FBPC composite by a hydrothermal method. The MnO2@FBPC nanocomposite showed a porous structure, large specific surface area, and high conductivity, and was modified on the carbon ionic liquid electrode (CILE) to obtain a working electrode for the sensitive voltammetric determination of rutin. The electrochemical response of rutin was studied via cyclic voltammetry with electrochemical parameters calculated. Under the optimal conditions, the linear range for the rutin analysis was obtained by the differential pulse voltammetry from 0.008 to 700.0 μmol L-1 with the detection limit of 2.67 nmol L-1 (3σ). This MnO2@FBPC/CILE was applied to directly detect the rutin concentration in drug and human urine samples with satisfactory results.
Collapse
Affiliation(s)
- Hui Cheng
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 P. R. China .,Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Juan Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Yunxiu Sun
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Ting Zhou
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 P. R. China
| | - Qiuyue Yang
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 P. R. China
| | - Shuyao Zhang
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 P. R. China
| | - Xiaoping Zhang
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 P. R. China
| | - Guangjiu Li
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology Qingdao 266042 P. R. China
| | - Wei Sun
- Key Laboratory of Laser Technology and Optoelectronic Functional Materials of Hainan Province, College of Chemistry and Chemical Engineering, Hainan Normal University Haikou 571158 P. R. China
| |
Collapse
|
7
|
Zhu L, Li X, Deng Y, Zou R, Shao B, Yan L, Ruan C, Sun W. Construction and electrochemical behavior of hemoglobin sensor based on ZnO doped carbon nanofiber modified electrode. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-02088-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
8
|
Xie H, Niu Y, Deng Y, Cheng H, Ruan C, Li G, Sun W. Electrochemical aptamer sensor for highly sensitive detection of mercury ion with Au/Pt@carbon nanofiber‐modified electrode. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000003] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Hui Xie
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, College of Chemistry and Chemical Engineering Hainan Normal University Haikou China
| | - Yanyan Niu
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, College of Chemistry and Chemical Engineering Hainan Normal University Haikou China
| | - Ying Deng
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, College of Chemistry and Chemical Engineering Hainan Normal University Haikou China
| | - Hui Cheng
- Key Laboratory of Optic‐electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao China
| | - Chengxiang Ruan
- Jiangxi Key Laboratory of Surface Engineering Jiangxi Science and Technology Normal University Nanchang China
| | - Guangjiu Li
- Key Laboratory of Optic‐electric Sensing and Analytical Chemistry for Life Science of Ministry of Education, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering Qingdao University of Science and Technology Qingdao China
| | - Wei Sun
- Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Key Laboratory of Functional Materials and Photoelectrochemistry of Haikou, College of Chemistry and Chemical Engineering Hainan Normal University Haikou China
| |
Collapse
|
9
|
Al-Dhahebi AM, Gopinath SCB, Saheed MSM. Graphene impregnated electrospun nanofiber sensing materials: a comprehensive overview on bridging laboratory set-up to industry. NANO CONVERGENCE 2020; 7:27. [PMID: 32776254 PMCID: PMC7417471 DOI: 10.1186/s40580-020-00237-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 07/07/2020] [Indexed: 05/04/2023]
Abstract
Owing to the unique structural characteristics as well as outstanding physio-chemical and electrical properties, graphene enables significant enhancement with the performance of electrospun nanofibers, leading to the generation of promising applications in electrospun-mediated sensor technologies. Electrospinning is a simple, cost-effective, and versatile technique relying on electrostatic repulsion between the surface charges to continuously synthesize various scalable assemblies from a wide array of raw materials with diameters down to few nanometers. Recently, electrospun nanocomposites have emerged as promising substrates with a great potential for constructing nanoscale biosensors due to their exceptional functional characteristics such as complex pore structures, high surface area, high catalytic and electron transfer, controllable surface conformation and modification, superior electric conductivity and unique mat structure. This review comprehends graphene-based nanomaterials (GNMs) (graphene, graphene oxide (GO), reduced GO and graphene quantum dots) impregnated electrospun polymer composites for the electro-device developments, which bridges the laboratory set-up to the industry. Different techniques in the base polymers (pre-processing methods) and surface modification methods (post-processing methods) to impregnate GNMs within electrospun polymer nanofibers are critically discussed. The performance and the usage as the electrochemical biosensors for the detection of wide range analytes are further elaborated. This overview catches a great interest and inspires various new opportunities across a wide range of disciplines and designs of miniaturized point-of-care devices.
Collapse
Affiliation(s)
- Adel Mohammed Al-Dhahebi
- Department of Fundamental & Applied Sciences, Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
- Centre of Innovative Nanostructure & Nanodevices (COINN), Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia
| | - Subash Chandra Bose Gopinath
- School of Bioprocess Engineering, Universiti Malaysia Perlis, 02600, Arau, Perlis, Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, 01000, Kangar, Perlis, Malaysia
| | - Mohamed Shuaib Mohamed Saheed
- Centre of Innovative Nanostructure & Nanodevices (COINN), Universiti Teknologi PETRONAS, 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia.
- Department of Mechanical Engineering , Universiti Teknologi PETRONAS , 32610, Seri Iskandar, Perak Darul Ridzuan, Malaysia.
| |
Collapse
|
10
|
Cheng H, Weng W, Xie H, Liu J, Luo G, Huang S, Sun W, Li G. Au-Pt@Biomass porous carbon composite modified electrode for sensitive electrochemical detection of baicalein. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104602] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
11
|
Ranieri A, Bortolotti CA, Di Rocco G, Battistuzzi G, Sola M, Borsari M. Electrocatalytic Properties of Immobilized Heme Proteins: Basic Principles and Applications. ChemElectroChem 2019. [DOI: 10.1002/celc.201901178] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Antonio Ranieri
- Department of Life SciencesUniversity of Modena and Reggio Emilia Via Campi 103 41125 Modena Italy
| | - Carlo Augusto Bortolotti
- Department of Life SciencesUniversity of Modena and Reggio Emilia Via Campi 103 41125 Modena Italy
| | - Giulia Di Rocco
- Department of Life SciencesUniversity of Modena and Reggio Emilia Via Campi 103 41125 Modena Italy
| | - Gianantonio Battistuzzi
- Department of Chemical and Geological SciencesUniversity of Modena and Reggio Emilia Via Campi 103 41125 Modena Italy
| | - Marco Sola
- Department of Life SciencesUniversity of Modena and Reggio Emilia Via Campi 103 41125 Modena Italy
| | - Marco Borsari
- Department of Chemical and Geological SciencesUniversity of Modena and Reggio Emilia Via Campi 103 41125 Modena Italy
| |
Collapse
|
12
|
Voltammetric sensing performances of a carbon ionic liquid electrode modified with black phosphorene and hemin. Mikrochim Acta 2019; 186:304. [PMID: 31028485 DOI: 10.1007/s00604-019-3421-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Accepted: 04/08/2019] [Indexed: 02/06/2023]
Abstract
A black phosphorene (BPE) and poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) hybrid was used for the immobilization of hemin on a carbon ionic liquid electrode (CILE). BPE inside the PEDOT:PSS film was stable without adverse effects of water and oxygen. The hemin-modified electrode facilitates electrochemical communication with a couple of well-shaped and enhanced redox waves. Therefore BPE exhibits an accelerating function to the electron movement. This sensor exhibits excellent electrocatalytic effects on the reduction of various substrates including trichloroacetic acid (TCA), nitrite and H2O2. As for TCA, the reduction current at -0.36 V (vs. Ag/AgCl) increases linearly in the concentration range from 2.0 to 180 mmol·L-1 with a detection limit of 0.67 mmol·L-1 (at 3σ). As for nitrite, the reduction current at -0.59 Vis linear in the 1.0 to 10.5 mmol·L-1 concentration range, and the detection limit is 0.33 mmol·L-1 (at 3σ). As for H2O2, the reduction current at -0.033 V (vs. Ag/AgCl) is linear in the concentration range from 4.0 to 35.0 mmol·L-1 and the detection limit is 1.3 mmol·L-1 (at 3σ). The real sample was analyzed with satisfactory results, which indicated that BPE had potential applications in the field of electrochemical biosensor. Graphical abstract Photos of (a) black phosphorene (BPE) solution, (b) poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS), (c) BPE-PEDOT:PSS (1:5) dispersion, and the fabrication procedure of this electrochemical sensor. It was applied to the determination of trichloroacetic acid, nitrite and hydrogen peroxide.
Collapse
|