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Zhang J, Yuan S, Beng S, Luo W, Wang X, Wang L, Peng C. Recent Advances in Molecular Imprinting for Proteins on Magnetic Microspheres. Curr Protein Pept Sci 2024; 25:286-306. [PMID: 38178676 DOI: 10.2174/0113892037277894231208065403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/01/2023] [Accepted: 11/07/2023] [Indexed: 01/06/2024]
Abstract
The separation of proteins in biological samples plays an essential role in the development of disease detection, drug discovery, and biological analysis. Protein imprinted polymers (PIPs) serve as a tool to capture target proteins specifically and selectively from complex media for separation purposes. Whereas conventional molecularly imprinted polymer is time-consuming in terms of incubation studies and solvent removal, magnetic particles are introduced using their magnetic properties for sedimentation and separation, resulting in saving extraction and centrifugation steps. Magnetic protein imprinted polymers (MPIPs), which combine molecularly imprinting materials with magnetic properties, have emerged as a new area of research hotspot. This review provides an overview of MPIPs for proteins, including synthesis, preparation strategies, and applications. Moreover, it also looks forward to the future directions for research in this emerging field.
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Affiliation(s)
- Jing Zhang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Shujie Yuan
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Shujuan Beng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Wenhui Luo
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Xiaoqun Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Lei Wang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
| | - Can Peng
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei, 230012, China
- Anhui Province Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei, Anhui, 230012, China
- Anhui Province Key Laboratory of Chinese Medicinal Formula, Hefei, 230012, China
- MOE-Anhui Joint Collaborative Innovation Center for Quality Improvement of Anhui Genuine Chinese Medicinal Materials, Hefei, 230012, China
- Institute of TCM Resources Protection and Development, Anhui Academy of Chinese Medicine, Hefei, 230012, China
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Elgamouz A, Kawde AN, Shehadi IA, Sayari S, Abdullah Mohammed SA, Abdelrazeq A, Nassab CN, AbdelHamid AA, Hasan K. Modified Graphite Pencil Electrode Based on Graphene Oxide-Modified Fe 3O 4 for Ferrocene-Mediated Electrochemical Detection of Hemoglobin. ACS OMEGA 2023; 8:11880-11888. [PMID: 37033858 PMCID: PMC10077451 DOI: 10.1021/acsomega.2c07023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Accepted: 03/16/2023] [Indexed: 06/19/2023]
Abstract
This study describes the synthesis of graphene oxide-modified magnetite (rGO/Fe3O4) and its use as an electrochemical sensor for the quantitative detection of hemoglobin (Hb). rGO is characterized by a 2θ peak at 10.03° in its X-ray diffraction, 1353 and 1586 cm-1 vibrations in Raman spectroscopy, while scanning electron microscopy coupled with energy-dispersive spectroscopy of rGO and rGO/Fe3O4 revealed the presence of microplate structures in both materials and high presence of iron in rGO/Fe3O4 with 50 wt %. The modified graphite pencil electrode, GPE/rGO/Fe3O4, is characterized using cyclic voltammetry. Higher electrochemical surface area is obtained when the GPE is modified with rGO/Fe3O4. Linear scan voltammetry is used to quantify Hb at the surface of the sensor using ferrocene (FC) as an electrochemical amplifier. Linear response for Hb is obtained in the 0.1-1.8 μM range with a regression coefficient of 0.995, a lower limit of detection of 0.090 μM, and a limit of quantitation of 0.28 μM. The sensor was free from interferents and successfully used to sense Hb in human urine. Due to the above-stated qualities, the GPE/rGO/Fe3O4 electrode could be a potential competitive sensor for trace quantities of Hb in physiological media.
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Dudchenko N, Pawar S, Perelshtein I, Fixler D. Magnetite-Based Biosensors and Molecular Logic Gates: From Magnetite Synthesis to Application. BIOSENSORS 2023; 13:304. [PMID: 36979516 PMCID: PMC10046048 DOI: 10.3390/bios13030304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
In the last few decades, point-of-care (POC) sensors have become increasingly important in the detection of various targets for the early diagnostics and treatment of diseases. Diverse nanomaterials are used as building blocks for the development of smart biosensors and magnetite nanoparticles (MNPs) are among them. The intrinsic properties of MNPs, such as their large surface area, chemical stability, ease of functionalization, high saturation magnetization, and more, mean they have great potential for use in biosensors. Moreover, the unique characteristics of MNPs, such as their response to external magnetic fields, allow them to be easily manipulated (concentrated and redispersed) in fluidic media. As they are functionalized with biomolecules, MNPs bear high sensitivity and selectivity towards the detection of target biomolecules, which means they are advantageous in biosensor development and lead to a more sensitive, rapid, and accurate identification and quantification of target analytes. Due to the abovementioned properties of functionalized MNPs and their unique magnetic characteristics, they could be employed in the creation of new POC devices, molecular logic gates, and new biomolecular-based biocomputing interfaces, which would build on new ideas and principles. The current review outlines the synthesis, surface coverage, and functionalization of MNPs, as well as recent advancements in magnetite-based biosensors for POC diagnostics and some perspectives in molecular logic, and it also contains some of our own results regarding the topic, which include synthetic MNPs, their application for sample preparation, and the design of fluorescent-based molecular logic gates.
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Affiliation(s)
- Nataliia Dudchenko
- Bar-Ilan Institute of Nanotechnology & Advanced Materials (BINA), Bar Ilan University, Ramat Gan 5290002, Israel
| | - Shweta Pawar
- Faculty of Engineering and Bar-Ilan Institute of Nanotechnology & Advanced Materials (BINA), Bar Ilan University, Ramat Gan 5290002, Israel
| | - Ilana Perelshtein
- Bar-Ilan Institute of Nanotechnology & Advanced Materials (BINA), Bar Ilan University, Ramat Gan 5290002, Israel
| | - Dror Fixler
- Bar-Ilan Institute of Nanotechnology & Advanced Materials (BINA), Bar Ilan University, Ramat Gan 5290002, Israel
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Bansal K, Webster D, Quadir M. Self-Assembled Nanostructures from Amphiphilic Sucrose-Soyates for Solubilizing Hydrophobic Guest Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:2066-2075. [PMID: 35119869 DOI: 10.1021/acs.langmuir.1c03033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
We studied self-assembly and colloidal properties of poly(ethylene glycol) (pEG) conjugated sucrose soyate polyols (PSSP). These molecular platforms were synthesized by covalently connecting PEGs of different molecular weights (Mn) (12 and 16 ethylene oxide units) to epoxidized sucrose soyate (ESS). The synthesized PSSP products showed amphiphilicity, reduced water surface tension, and exhibited critical Aggregation Concentration (CAC) within the range of 0.3-0.4 mg/mL. We observed that PSSP self-assembles in water in the form of nanoparticles without the need of any cosolvents. These nanoparticles exhibited number-average hydrodynamic diameter of 120 ± 8 nm with a polydispersity index (PDI) of <0.3, and negatively charged surfaces. We also found out that PSSP nanoparticles can encapsulate and homogeneously distribute a hydrophobic model compound, such as a phthalocyanine dye, Solvent Blue-70 (BL-70), on a metal surface. Collectively, our studies explored and demonstrated the possibility of molecular diversification of biobased starting materials to form amphiphilic nanoparticles with industrially relevant colloidal and surface properties.
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Affiliation(s)
- Karan Bansal
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo North Dakota 58108, United States
| | - Dean Webster
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo North Dakota 58108, United States
| | - Mohiuddin Quadir
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo North Dakota 58108, United States
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Wang Y, Yang X, Pang L, Geng P, Mi F, Hu C, Peng F, Guan M. Application progress of magnetic molecularly imprinted polymers chemical sensors in the detection of biomarkers. Analyst 2022; 147:571-586. [PMID: 35050266 DOI: 10.1039/d1an01112j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Specific recognition and highly sensitive detection of biomarkers play an essential role in identification, early diagnosis and prevention of many diseases. Magnetic molecularly imprinted polymers (MMIPs) have been widely used to capture biomimetic receptors for targets in various complex matrices due to their superior recognition ability, structural stability, and rapid separation characteristics, which overcome the existing deficiencies of traditional recognition elements such as antibodies, aptamers. The integration of MMIPs as recognition elements with chemical sensors opens new opportunities for the development of advanced analytical devices with improved selectivity and sensitivity, shorter analysis time, and lower cost. Recently, MMIPs-chemical sensors (MMIPs-CS) have made significant progress in detection, but many challenges and development spaces remain. Therefore, this review focuses on the research progress of the sensor based on biomarker detection and introduces the surface modification of the magnetic support material used to prepare high selective MMIPs, as well as the selective extraction of target biomarkers by MMIPs from the complex biological sample matrix. Based on the understanding of optical sensors and electrochemical sensors, the applications of MMIPs-optical sensors (MMIPs-OS) and MMIPs-electrochemical sensors (MMIPs-ECS) for biomarker detection were reviewed and discussed in detail. Moreover, it provides an overview of the challenges in this research area and the potential strategies for the rational design of high-performance MMIPs-CS, accelerating the development of multifunctional MMIPs-CS.
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Affiliation(s)
- Ying Wang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Xiaomin Yang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Lin Pang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Pengfei Geng
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Fang Mi
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Cunming Hu
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Fei Peng
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
| | - Ming Guan
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
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Chen J, Tan L, Qu K, Cui Z, Wang J. Novel electrochemical sensor modified with molecularly imprinted polymers for determination of enrofloxacin in marine environment. Mikrochim Acta 2022; 189:95. [PMID: 35142925 DOI: 10.1007/s00604-022-05205-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 01/26/2022] [Indexed: 12/12/2022]
Abstract
Molecularly imprinted polymers were synthesized by gel-sol method with multi-walled carbon nanotubes as support and enrofloxacin as a template and further modified on the surface of glassy carbon electrode to construct a molecularly imprinted electrochemical sensor. The performance of the imprinted electrochemical sensor was thoroughly investigated by using cyclic voltammetry and differential pulse voltammetry. The influence of imprinted polymers amount, electrolyte pH, and incubation time on the sensor performance was investigated for the detection of enrofloxacin. Under the optimal experimental conditions in a three-electrode system with the modified electrode as the working electrode the differential pulse voltammetry response current of the sensor had a good linear relationship at 0.2 V (vs. saturated calomel reference electrode) with the enrofloxacin concentration within 2.8 pM-28 μM and the limit of detection of the method was 0.9 pM. The competitive interference experiment showed that the imprinted electrochemical sensor could selectively recognize enrofloxacin. The method was applied to analyze spiked natural seawater, fish, and shrimp samples. The recovery was 96.4%-102%, and RSD was less than 4.3% (n = 3), indicating that the proposed imprinted electrochemical sensor was suitable for the determination of trace enrofloxacin in marine environment samples.
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Affiliation(s)
- Jianlei Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
- Marine Fishery Environment and Bioremediation Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Liju Tan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Keming Qu
- Marine Fishery Environment and Bioremediation Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
| | - Zhengguo Cui
- Marine Fishery Environment and Bioremediation Laboratory, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
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Marfà J, Pupin RR, Sotomayor M, Pividori MI. Magnetic-molecularly imprinted polymers in electrochemical sensors and biosensors. Anal Bioanal Chem 2021; 413:6141-6157. [PMID: 34164705 DOI: 10.1007/s00216-021-03461-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 06/02/2021] [Accepted: 06/08/2021] [Indexed: 12/15/2022]
Abstract
Magnetic particles, as well as molecularly imprinted polymers, have revolutionized separation and bioanalytical methodologies in the 1980s due to their wide range of applications. Today, biologically modified magnetic particles are used in many scientific and technological applications and are integrated in more than 50,000 diagnostic instruments for the detection of a huge range of analytes. However, the main drawback of this material is their stability and high cost. In this work, we review recent advances in the synthesis and characterization of hybrid molecularly imprinted polymers with magnetic properties, as a cheaper and robust alternative for the well-known biologically modified magnetic particles. The main advantages of these materials are, besides the magnetic properties, the possibility to be stored at room temperature without any loss in the activity. Among all the applications, this work reviews the direct detection of electroactive analytes based on the preconcentration by using magnetic-MIP integrated on magneto-actuated electrodes, including food safety, environmental monitoring, and clinical and pharmaceutical analysis. The main features of these electrochemical sensors, including their analytical performance, are summarized. This simple and rapid method will open the way to incorporate this material in different magneto-actuated devices with no need for extensive sample pretreatment and sophisticated instruments.
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Affiliation(s)
- J Marfà
- Grup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - R R Pupin
- Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP, 14801-970, Brazil
| | - Mpt Sotomayor
- Department of Analytical Chemistry, Institute of Chemistry, State University of São Paulo (UNESP), Araraquara, SP, 14801-970, Brazil
| | - M I Pividori
- Grup de Sensors i Biosensors, Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain. .,Institute of Biotechnology and Biomedicine, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain.
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Tripathy A, Nine MJ, Silva FS. Biosensing platform on ferrite magnetic nanoparticles: Synthesis, functionalization, mechanism and applications. Adv Colloid Interface Sci 2021; 290:102380. [PMID: 33819727 DOI: 10.1016/j.cis.2021.102380] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/29/2021] [Accepted: 01/30/2021] [Indexed: 12/17/2022]
Abstract
Ferrite magnetic nanoparticles (FMNPs) are gaining popularity to design biosensors for high-performance clinical diagnosis. The fusion of information shows that FMNPs based biosensors require well-tuned FMNPs as detection probes to produce large and specific biological signals with minimal non-specific binding. Nevertheless, there is a noticeable lacuna of information to solve the issues related to suitable synthesis route, particle size reduction, functionalization, sensitivity towards targeted intercellular biological tiny particles, and lower signal-to-noise ratio. Therefore it allows exploring unique characteristics of FMNPs to design a suitable sensing device for intracellular measurements and diseases detection. This review focuses on the extensively used synthesis routes, their advantages and limitations, crystalline structure, functionalization, along with recent applications of FMNPs in biosensors, taking into consideration their analytical figures of merit and range of linearity. This work also addresses the current progress, key factors for sensitivity, selectivity and productivity improvement along with the challenges, future trends and perspectives of FMNPs based biosensors.
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Gao B, Liang Z, Han D, Han F, Fu W, Wang W, Liu Z, Niu L. Molecularly imprinted photo-electrochemical sensor for hemoglobin detection based on titanium dioxide nanotube arrays loaded with CdS quantum dots. Talanta 2021; 224:121924. [DOI: 10.1016/j.talanta.2020.121924] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 02/06/2023]
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10
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Magnetic mesoporous silica/graphene oxide based molecularly imprinted polymers for fast selective separation of bovine hemoglobin. SN APPLIED SCIENCES 2020. [DOI: 10.1007/s42452-020-2573-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
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Yang Y, Yan W, Guo C, Zhang J, Yu L, Zhang G, Wang X, Fang G, Sun D. Magnetic molecularly imprinted electrochemical sensors: A review. Anal Chim Acta 2020; 1106:1-21. [PMID: 32145837 DOI: 10.1016/j.aca.2020.01.044] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/20/2020] [Accepted: 01/21/2020] [Indexed: 02/07/2023]
Abstract
The preparation and practical applications of molecularly imprinted electrochemical sensors (MIECSs) remain challenging due to issues involving electrode surface renewal modes, low adsorption capacities, and sample preparation speeds. To solve these issues, magnetic molecularly imprinted electrochemical sensors (MMIECSs) have been extensively explored by various groups. Recently, MMIECSs fabricated based on diverse strategies have yielded insight into the development of MIECSs, and they have provided effective paths for sample preparation, immobilization and renewal of molecularly imprinted polymers (MIPs) on the electrode surface, leading to promising performances of MIECSs. This review comprehensively describes the research advances for various types of MMIECSs and their applications in the fields of food safety, environmental monitoring, and clinical and pharmaceutical analysis. Based on our understanding of MMIECSs, the literature in this field is thoroughly explored and classified in this review. The challenges existing in this research area and some potential strategies for the rational design of high-performance MMIECS are also outlined.
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Affiliation(s)
- Yukun Yang
- School of Life Science, Shanxi University, Taiyuan, 030006, China.
| | - Wenyan Yan
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Caixia Guo
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Jinhua Zhang
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Ligang Yu
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Guohua Zhang
- School of Life Science, Shanxi University, Taiyuan, 030006, China
| | - Xiaomin Wang
- Institute of Pharmaceutical and Food Engineering, Shanxi University of Chinese Medicine, Yuci, 030619, China.
| | - Guozhen Fang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Dandan Sun
- School of Physics and Electronic Engineering, Shanxi University, Taiyuan, 030006, China
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Barsan MM, Enache TA, Preda N, Stan G, Apostol NG, Matei E, Kuncser A, Diculescu VC. Direct Immobilization of Biomolecules through Magnetic Forces on Ni Electrodes via Ni Nanoparticles: Applications in Electrochemical Biosensors. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19867-19877. [PMID: 31081608 DOI: 10.1021/acsami.9b04990] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The present work describes a new simple procedure for the direct immobilization of biomolecules on Ni electrodes using magnetic Ni nanoparticles (NiNPs) as biomolecule carriers. Ni electrodes were fabricated by electroplating, and NiNPs were chemically synthesized. The chemical composition, crystallinity, and granular size of Ni electrodes, NiNP, and NiNP-modified Ni electrodes (NiNP/Ni) were determined by X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy (XPS). The electrochemical characterization of Ni electrodes by cyclic voltammetry and electrochemical impedance spectroscopy confirmed the existence of nickel oxides, hydroxides, and oxohydroxide films at the surface of Ni. Magnetic characterization and micromagnetic simulations were performed in order to prove that the magnetic force is responsible for the immobilization process. Further, Ni electrodes were employed as amperometric sensors for the detection of hydrogen peroxide because it is an important performance indicator for a material to be applied in biosensing. The working principle for magnetic immobilization of the enzyme-functionalized NiNP, without the use of external magnetic sources, was demonstrated for glucose oxidase (GOx) as a model enzyme. XPS results enabled to identify the presence of GOx attached to the NiNP (GOx-NiNP) on Ni electrodes. Finally, glucose detection and quantification were evaluated with the newly developed GOx-NiNP/Ni biosensor by amperometry at different potentials, and control experiments at different electrode materials in the presence and absence of NiNP demonstrated their importance in the biosensor architecture.
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Affiliation(s)
- Madalina M Barsan
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - Teodor A Enache
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - Nicoleta Preda
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - George Stan
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - Nicoleta G Apostol
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - Elena Matei
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - Andrei Kuncser
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
| | - Victor C Diculescu
- National Institute of Materials Physics , Atomistilor 405A , 077125 Magurele , Romania
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Preparation of molecularly imprinted polymers and application in a biomimetic biotin-avidin-ELISA for the detection of bovine serum albumin. Talanta 2019; 198:55-62. [DOI: 10.1016/j.talanta.2019.01.088] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/16/2019] [Accepted: 01/24/2019] [Indexed: 11/18/2022]
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14
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Zaidi SA. An Account on the Versatility of Dopamine as a Functional Monomer in Molecular Imprinting. ChemistrySelect 2019. [DOI: 10.1002/slct.201901029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shabi Abbas Zaidi
- Department of ChemistryKwangwoon University, 20 Kwangwoon-ro, Nowon-Gu Seoul 01897 Korea
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Beluomini MA, da Silva JL, de Sá AC, Buffon E, Pereira TC, Stradiotto NR. Electrochemical sensors based on molecularly imprinted polymer on nanostructured carbon materials: A review. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.04.005] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Recent advances on core–shell magnetic molecularly imprinted polymers for biomacromolecules. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.03.008] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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17
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Electrochemical determination of hemoglobin on a magnetic electrode modified with chitosan based on electrocatalysis of oxygen. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.01.066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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18
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Lahcen AA, Amine A. Recent Advances in Electrochemical Sensors Based on Molecularly Imprinted Polymers and Nanomaterials. ELECTROANAL 2018. [DOI: 10.1002/elan.201800623] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Abdellatif Ait Lahcen
- Chemical Analysis & Biosensors Group; Laboratory of Process Engineering & Environment; Faculty of Science and Techniques; Hassan II University of Casablanca B.P. 146.; Mohammedia Morocco
| | - Aziz Amine
- Chemical Analysis & Biosensors Group; Laboratory of Process Engineering & Environment; Faculty of Science and Techniques; Hassan II University of Casablanca B.P. 146.; Mohammedia Morocco
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Molecular Fingerprints of Hemoglobin on a Nanofilm Chip. SENSORS 2018; 18:s18093016. [PMID: 30205614 PMCID: PMC6165033 DOI: 10.3390/s18093016] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 08/31/2018] [Accepted: 09/06/2018] [Indexed: 02/05/2023]
Abstract
Hemoglobin is an iron carrying protein in erythrocytes and also an essential element to transfer oxygen from the lungs to the tissues. Abnormalities in hemoglobin concentration are closely correlated with health status and many diseases, including thalassemia, anemia, leukemia, heart disease, and excessive loss of blood. Particularly in resource-constrained settings existing blood analyzers are not readily applicable due to the need for high-level instrumentation and skilled personnel, thereby inexpensive, easy-to-use, and reliable detection methods are needed. Herein, a molecular fingerprints of hemoglobin on a nanofilm chip was obtained for real-time, sensitive, and selective hemoglobin detection using a surface plasmon resonance system. Briefly, through the photopolymerization technique, a template (hemoglobin) was imprinted on a monomeric (acrylamide) nanofilm on-chip using a cross-linker (methylenebisacrylamide) and an initiator-activator pair (ammonium persulfate-tetramethylethylenediamine). The molecularly imprinted nanofilm on-chip was characterized by atomic force microscopy and ellipsometry, followed by benchmarking detection performance of hemoglobin concentrations from 0.0005 mg mL−1 to 1.0 mg mL−1. Theoretical calculations and real-time detection implied that the molecularly imprinted nanofilm on-chip was able to detect as little as 0.00035 mg mL−1 of hemoglobin. In addition, the experimental results of hemoglobin detection on the chip well-fitted with the Langmuir adsorption isotherm model with high correlation coefficient (0.99) and association and dissociation coefficients (39.1 mL mg−1 and 0.03 mg mL−1) suggesting a monolayer binding characteristic. Assessments on selectivity, reusability and storage stability indicated that the presented chip is an alternative approach to current hemoglobin-targeted assays in low-resource regions, as well as antibody-based detection procedures in the field. In the future, this molecularly imprinted nanofilm on-chip can easily be integrated with portable plasmonic detectors, improving its access to these regions, as well as it can be tailored to detect other proteins and biomarkers.
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A facile horseradish peroxidase electrochemical biosensor with surface molecular imprinting based on polyaniline nanotubes. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.04.013] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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21
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Bai H, Wang C, Chen J, Li Z, Fu K, Cao Q. Graphene@AuNPs modified molecularly imprinted electrochemical sensor for the determination of colchicine in pharmaceuticals and serum. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.02.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Peng F, Chu M, Sun J, Liu Y, Zhang Q, Chen Y, Wang F, Zhao W. Preparation of Fe3O4@PS/PDA-Au nanotubes for sensitive electrochemical detection of alpha-fetoprotein. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.12.076] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Dabrowski M, Lach P, Cieplak M, Kutner W. Nanostructured molecularly imprinted polymers for protein chemosensing. Biosens Bioelectron 2018; 102:17-26. [DOI: 10.1016/j.bios.2017.10.045] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/04/2017] [Accepted: 10/21/2017] [Indexed: 02/08/2023]
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Anirudhan TS, Alexander S. A potentiometric sensor for the trace level determination of hemoglobin in real samples using multiwalled carbon nanotube based molecular imprinted polymer. Eur Polym J 2017. [DOI: 10.1016/j.eurpolymj.2017.09.048] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Novel biomimetic enzyme for sensitive detection of superoxide anions. Talanta 2017; 174:82-91. [DOI: 10.1016/j.talanta.2017.05.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 05/04/2017] [Accepted: 05/10/2017] [Indexed: 01/16/2023]
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Affiliation(s)
- Khalil Khadim Hussain
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST); Pusan National University; Busan 46241 S. Korea
| | - Jong-Min Moon
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST); Pusan National University; Busan 46241 S. Korea
| | - Deog-Su Park
- Institute of BioPhysio Sensor Technology (IBST); Pusan National University; Busan 46241 S. Korea
| | - Yoon-Bo Shim
- Department of Chemistry and Institute of BioPhysio Sensor Technology (IBST); Pusan National University; Busan 46241 S. Korea
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Liu Y, Zhu L, Hu Y, Peng X, Du J. A novel electrochemical sensor based on a molecularly imprinted polymer for the determination of epigallocatechin gallate. Food Chem 2017; 221:1128-1134. [DOI: 10.1016/j.foodchem.2016.11.047] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 11/07/2016] [Accepted: 11/08/2016] [Indexed: 01/10/2023]
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Mahmoudi-Badiki T, Alipour E, Hamishehkar H, Golabi SM. A performance evaluation of Fe 3 O 4 /Au and γ-Fe 2 O 3 /Au core/shell magnetic nanoparticles in an electrochemical DNA bioassay. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.02.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Recent configurations and progressive uses of magnetic molecularly imprinted polymers for drug analysis. Talanta 2017; 167:470-485. [PMID: 28340747 DOI: 10.1016/j.talanta.2017.02.049] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 02/20/2017] [Accepted: 02/21/2017] [Indexed: 12/25/2022]
Abstract
Since the introduction of the molecularly imprinting technology (MIT) in the 1970s, it becomes an emerging technology with the potential for wide-ranging applications in drug determination. With the rise of green chemistry, many researchers began to focus on the application and development of green materials which led to the breakthrough of molecularly imprinted polymers (MIPs) in the green chemistry. Because of the low concentration levels in the human matrices, almost adequate analytical methods should be used for quantification of drugs at the trace levels. In recent years there have been reported benefits of combining MIPs with additional features, e.g. magnetic properties, through the build-up of this type of material on magnetite particles. Magnetic molecularly imprinted polymer (MMIP) is a new material which is composed of magnetic material and non-magnetic polymer material and shares the characteristics of high adsorption capacity to template molecule, special selective recognition ability, and the magnetic adsorption property. These materials have been widely used in the different fields such as chemical, biological and medical science. This review describes the novel configurations and progressive applications of magnetic molecularly imprinted polymers to the drug analysis. Also, the advantages and drawbacks of each methodology, as well as the future expected trends, are evaluated.
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Yáñez-Sedeño P, Campuzano S, Pingarrón JM. Electrochemical sensors based on magnetic molecularly imprinted polymers: A review. Anal Chim Acta 2017; 960:1-17. [PMID: 28193351 DOI: 10.1016/j.aca.2017.01.003] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2016] [Revised: 12/30/2016] [Accepted: 01/02/2017] [Indexed: 12/20/2022]
Abstract
Participation of magnetic component in molecularly imprinted polymers (MIPs) has facilitated enormously the incorporation of these polymeric materials on electrode surfaces allowing the design of electrochemical sensors with very attractive analytical characteristics in terms of simplicity, reproducibility, low fabrication cost, high sensitivity and selectivity and rapid assay time. The magnetically susceptible resultant MIPs (MMIPs) allowed a simple and fast elution of the template molecules from MMIPs, are easily and faster collected without filtration, centrifugation or other complex operations and are also faster assembled and removed from the electrode surface by simply using an external magnetic field. A wide range of different (nano)materials such as gold nanoparticles (AuNPs), graphene oxide, single-walled and multi-walled carbon nanotubes (SWCNTs and MWCNTs) as well as different electrode modifiers (ionic liquids (ILs) and surfactants/dispersants) have been incorporated into the MMIPs to improve the analytical performance of the resulting electrochemical sensors which have demonstrated great promise for determination of relevant analytes in environmental, food and clinical analyses.
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Affiliation(s)
- Paloma Yáñez-Sedeño
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
| | - Susana Campuzano
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
| | - José M Pingarrón
- Departamento de Química Analítica, Facultad de CC. Químicas, Universidad Complutense de Madrid, E-28040, Madrid, Spain.
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Sun B, Ni X, Cao Y, Cao G. Electrochemical sensor based on magnetic molecularly imprinted nanoparticles modified magnetic electrode for determination of Hb. Biosens Bioelectron 2016; 91:354-358. [PMID: 28049107 DOI: 10.1016/j.bios.2016.12.056] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 12/23/2016] [Accepted: 12/27/2016] [Indexed: 10/20/2022]
Abstract
A fast and selective electrochemical sensor for determination of hemoglobin (Hb) was developed based on magnetic molecularly imprinted nanoparticles modified on the magnetic glassy carbon electrode. The nanoparticles Fe3O4@SiO2 with a magnetic core and a molecularly imprinted shell had regular structures and good monodispersity. Hb could be determined directly by electrochemical oxidization with the modified electrode. A magnetic field increased electrochemical response to Hb by two times. Imprinting Hb on the surface of Fe3O4@SiO2 shortened the response time within 7min. Under optimum conditions, the imprinting factor toward the non-imprinted sensor was 2.8, and the separation factor of Hb to horseradish peroxidase was 2.6. The oxidation peak current had a linear relationship with Hb concentration ranged from 0.005mg/ml to 0.1mg/ml with a detection limit (S/N =3) of 0.0010mg/ml. The sensors were successfully applied to analysis of Hb in whole blood samples with recoveries between 95.7% and 105%.
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Affiliation(s)
- Binghua Sun
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Xinjiong Ni
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
| | - Yuhua Cao
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
| | - Guangqun Cao
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China
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Chu G, Cai W, Shao X. Determination of Bovine Hemoglobin by Near-Infrared Diffuse Reflectance Spectroscopy with Novel Adsorption Preconcentration. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1216124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Ganghui Chu
- Xinjiang Laboratory of Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Science, Kashgar University, Kashgar, China
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, China
| | - Wensheng Cai
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, China
| | - Xueguang Shao
- Xinjiang Laboratory of Native Medicinal and Edible Plant Resources Chemistry, College of Chemistry and Environmental Science, Kashgar University, Kashgar, China
- Research Center for Analytical Sciences, College of Chemistry, Tianjin Key Laboratory of Biosensing and Molecular Recognition, State Key Laboratory of Medicinal Chemical Biology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin, China
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Xie J, Xie J, Deng J, Fang X, Zhao H, Qian D, Wang H. Computational design and fabrication of core-shell magnetic molecularly imprinted polymer for dispersive micro-solid-phase extraction coupled with high-performance liquid chromatography for the determination of rhodamine 6G. J Sep Sci 2016; 39:2422-30. [DOI: 10.1002/jssc.201600261] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 04/11/2016] [Accepted: 04/15/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Jin Xie
- School of Chemistry and Chemical Engineering; University of South China; Hengyang Hunan China
| | - Jie Xie
- College of Veterinary Medicine and State Key Laboratory of Agrobiotechnology; China Agricultural University; Beijing PR China
| | - Jian Deng
- School of Chemistry and Chemical Engineering; University of South China; Hengyang Hunan China
| | - Xiangfang Fang
- School of Chemistry and Chemical Engineering; University of South China; Hengyang Hunan China
| | - Haiqing Zhao
- School of Chemistry and Chemical Engineering; University of South China; Hengyang Hunan China
| | - Duo Qian
- School of Chemistry and Chemical Engineering; University of South China; Hengyang Hunan China
| | - Hongjuan Wang
- School of Chemistry and Chemical Engineering; University of South China; Hengyang Hunan China
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34
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Sun Y, Du H, Lan Y, Wang W, Liang Y, Feng C, Yang M. Preparation of hemoglobin (Hb) imprinted polymer by Hb catalyzed eATRP and its application in biosensor. Biosens Bioelectron 2016; 77:894-900. [DOI: 10.1016/j.bios.2015.10.067] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 10/24/2015] [Accepted: 10/26/2015] [Indexed: 12/27/2022]
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35
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Sun Y, Lan Y, Yang L, Kong F, Du H, Feng C. Preparation of hemoglobin imprinted polymers based on graphene and protein removal assisted by electric potential. RSC Adv 2016. [DOI: 10.1039/c6ra04039j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hemoglobin (Hb) imprinted polymers based on graphene were prepared on the surface of Au electrode and protein removal assisted by electric potential was studied in detail.
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Affiliation(s)
- Yue Sun
- School of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- China
| | - Yuting Lan
- School of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- China
| | - Lulu Yang
- School of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- China
| | - Fanbo Kong
- School of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- China
| | - Hongying Du
- School of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- China
| | - Chunliang Feng
- School of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- China
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Han Q, Shen X, Zhu W, Zhu C, Zhou X, Jiang H. Magnetic sensing film based on Fe₃O₄@Au-GSH molecularly imprinted polymers for the electrochemical detection of estradiol. Biosens Bioelectron 2015; 79:180-6. [PMID: 26706939 DOI: 10.1016/j.bios.2015.12.017] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 12/04/2015] [Accepted: 12/10/2015] [Indexed: 11/19/2022]
Abstract
A novel magnetic molecularly imprinted sensing film (MMISF) was fabricated for the determination of estradiol (E2) based on magnetic glassy carbon electrode (MGCE) and magnetic molecularly imprinted polymers (MMIPs). The MMIPs were synthesized by in situ polymerization of glutathione (GSH)-functionalized gold (Au)-coated Fe3O4 (Fe3O4@Au-GSH) nanocomposites and aniline. The MMISF was constructed with MMIPs via a kind of "soft modification" where MMIPs were assembled and immobilized on the surface of MGCE or removed from it by freely installing a magnet into MGCE or not. The E2-MMIPs were obtained by MMIPs recognizing E2 from sample, and the electrochemical detection was carried out after forming the "soft modification" sensing film by putting MGCE into the E2-MMIPs suspension liquid. Afterwards, the "soft modification" MMISF was peeled off from the electrode by removing the magnet from MGCE. The interface of the electrode could be quickly refreshed through simple treatment for the next detection. The structures and morphologies of Fe3O4@Au-GSH, MMIPs and MMISF were investigated by Fourier transform infrared spectrometer, ultraviolet and visible spectrophotometer, scanning electron microscope and atomic force microscope. In addition, the MMISF was successfully used for detecting E2 in milk powder with good sensitivity, selectivity, reproducibility and efficiency. The linear range of the MMISF for E2 was 0.025-10.0μmolL(-1) with the limit of detection of 2.76nmolL(-1) (S/N= 3).
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Affiliation(s)
- Qing Han
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, PR China; Jiangsu Food and Pharmaceutical Science College, Huai'an 223003, PR China
| | - Xin Shen
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, PR China
| | - Wanying Zhu
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, PR China
| | - Chunhong Zhu
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, PR China
| | - Xuemin Zhou
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, PR China.
| | - Huijun Jiang
- School of Pharmacy, Nanjing Medical University, Nanjing 211166, PR China.
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Zhu Y, Zhang B, Wang DW, Su DS. Order of Activity of Nitrogen, Iron Oxide, and FeNx Complexes towards Oxygen Reduction in Alkaline Medium. CHEMSUSCHEM 2015; 8:4016-4021. [PMID: 26609795 DOI: 10.1002/cssc.201501141] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 10/18/2015] [Indexed: 06/05/2023]
Abstract
In alkaline medium, it seems that both metal-free and iron-containing carbon-based catalysts, such as nitrogen-doped nanocarbon materials, FeOx -doped carbon, and Fe/N/C catalysts, are active for the oxygen reduction reaction (ORR). However, the order of activity of these different active compositions has not been clearly determined. Herein, we synthesized nitrogen-doped carbon black (NCB), Fe3 O4 /CB, Fe3 O4 /NCB, and FeN4 /CB. Through the systematic study of the ORR catalytic activity of these four catalysts in alkaline solution, we confirmed the difference in the catalytic activity and catalytic mechanism for nitrogen, iron oxides, and Fe-N complexes, respectively. In metal-free NCB, nitrogen can improve the ORR catalytic activity with a four-electron pathway. Fe3 O4 /CB catalyst did not exhibit improved activity over that of NCB owing to the poor conductivity and spinel structure of Fe3 O4 . However, FeN4 coordination compounds as the active sites showed excellent ORR catalytic activity.
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Affiliation(s)
- Yansong Zhu
- School of Chemistry and Life Science, Anshan Normal University, Anshan, Liaoning, 114005, China
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China
| | - Bingsen Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China
| | - Da-Wei Wang
- School of Chemical Engineering, University of New South Wales, UNSW, Sydney, NSW, 2052, Australia
| | - Dang Sheng Su
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, Liaoning, 110016, China.
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Imprinted electrochemical sensor based on magnetic multi-walled carbon nanotube for sensitive determination of kanamycin. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.07.018] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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