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Josypcuk B, Tvorynska S. Electrochemical flow-through biosensors based on microfiber enzymatic filter discs placed at printed electrodes. Bioelectrochemistry 2024; 157:108663. [PMID: 38359574 DOI: 10.1016/j.bioelechem.2024.108663] [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: 09/05/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
A new type of electrochemical biosensors in a flow injection system with printed electrodes were developed and tested. A filter disc (7 mm diameter) with immobilized enzyme was placed at the printed electrode. This conception combines the advantages of biosensors with a bioreceptor at the electrode surface and systems with spatially separated enzymatic and detection parts. Filters of different composition (glass, quartz, and cellulose), thickness, porosity, and ways of binding enzyme to their surface were tested. Only covalent bonds throughout a filter-aminosilane-glutaraldehyde-enzyme chain ensured a long-time and reproducible biosensor response. The developed method of biosensor preparation has been successfully applied to enzymes glucose oxidase, laccase and choline oxidase. The dependences of peak current on detection potential, flow rate, injection volume, analyte concentration as well as biosensor lifetime and reproducibility were investigated for glucose oxidase biosensor. The sensitivity of measurements was two or more times higher than that of biosensor with a mini-reactor filled by powder with immobilized enzyme. The developed biosensor with laccase was tested by determining dopamine in the pharmaceutical infusion product Tensamin®. Results of the analysis (40.0 ± 0.7 mg mL-1, SD = 0.8 mg mL-1, RSD = 1.85 %, N = 11) show a good agreement with the manufacturer's declared value.
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Affiliation(s)
- Bohdan Josypcuk
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejskova 2155/3 182 23, Prague, Czech Republic.
| | - Sofiia Tvorynska
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejskova 2155/3 182 23, Prague, Czech Republic; Charles University in Prague, Faculty of Science, Department of Analytical Chemistry, Hlavova 2030/8 128 43, Prague 2, Czech Republic
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2
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Integration of enzyme-encapsulated mesoporous silica between nanohole array electrode and hydrogel film for flow-type electrochemical biosensor. ANAL SCI 2023; 39:153-161. [PMID: 36334242 DOI: 10.1007/s44211-022-00209-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
We herein propose a simple and sensitive electrochemical flow biosensor platform without an external flow device. The sensing unit comprises a platinum nanohole array electrode deposited on a nanoporous track-etched membrane (PtNH/NPM), a packed-layer of glucose oxidase-encapsulated mesoporous silica particles (GOD/MPS), and bovine serum albumin hydrogel film (BSA gel film). This sensing unit was fixed at the open window at the side of the plastic container with internal solution containing NaCl as osmotic reagent. When the sample glucose solution (0.10 mL) was pipetted at the sensing unit, a portion of the sample solution (5 μL) was spontaneously transferred into the BSA gel film. The concentration gradient of NaCl between the internal solution and the BSA gel film induced osmotic flow of water toward the internal solution. This osmotic flow assisted delivery of glucose to the GOD/MPS and enzymatically generated H2O2 to the PtNH/NPM. The proposed sensor could be used repeatedly and produced a linear current response for glucose, with a limit of detection of 16 μM. These sensor performances confirmed availability of the sensor design utilizing the osmotic flow.
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3
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Enzyme sensor for simultaneous determination of cholesterol, triglyceride and HDL cholesterol in serum. ANAL SCI 2022; 38:1189-1197. [PMID: 35831775 DOI: 10.1007/s44211-022-00148-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 06/07/2022] [Indexed: 11/01/2022]
Abstract
A three-electrode lipid biosensor that simultaneously measures the total cholesterol (CHO), triglyceride (TG), and HDL cholesterol (HDL-C) in standard serum has been developed. The lipid biosensor is designed for clinical use where production cost, low sample requirement, portability, stability, and speed are high priorities. The device design filters out blood cells and lipoproteins from the serum, where the target molecules are catalyzed by enzymes encapsulated in carboxymethyl cellulose (CMC) to produce electron mediators, potassium ferrocyanide. These electron mediators were subsequently detected by amperometric determination. The sensor exhibit high selectivity towards the targets and can measure the target lipids in 4 min with 10 µL of serum. Lastly, the device can be stored up to 18 months with a minimal decrease in catalytic efficiency.
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Niu K, Gao J, Wu L, Lu X, Chen J. Nitrogen-Doped Graphdiyne as a Robust Electrochemical Biosensing Platform for Ultrasensitive Detection of Environmental Pollutants. Anal Chem 2021; 93:8656-8662. [PMID: 34110153 DOI: 10.1021/acs.analchem.1c01800] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Owing to its unique chemical structure, natural pores, high structure defects, good surface hydrophilicity and biocompatibility, and favorable electrical conductivity, nitrogen-doped graphdiyne (NGDY) has been attracting attention in the application of electrochemical sensing. Taking advantage of these fascinating electrochemical properties, for the first time, two types of electrochemical enzymatic biosensors were fabricated for the respective detection of organophosphorus pesticides (OPs) and phenols based on the immobilization of acetylcholinesterase or tyrosinase with NGDY. Results revealed that the sensitivities of the NGDY-based enzymatic biosensors were almost twice higher than that of the matching biosensor in the absence of NGDY, proving that NGDY plays a vital role in immobilizing the enzymes and improving the performance of the fabricated biosensors. The effects of nitrogen doping on improving the biosensing performance were studied in depth. Graphitic N atoms can enhance the electrical conductivity, while imine N and pyridinic N can help to adsorb and accumulate the substance molecules to the electrode surface, all of which contribute to the significantly improved performance. Furthermore, these two types of biosensors also demonstrated excellent reproducibility, high stability, and good recovery rate in real environmental samples, which showed a valuable way for the rapid detection of OPs and phenols in the environment. With these excellent performances, it is strongly anticipated that NGDY has tremendous potential to be applied to many other biomedical and environmental fields.
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Affiliation(s)
- Kai Niu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China.,University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, P. R. China
| | - Juan Gao
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China
| | - Lingxia Wu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
| | - Xianbo Lu
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
| | - Jiping Chen
- CAS Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China
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5
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Xie L, Zhou S, Liu J, Qiu B, Liu T, Liang Q, Zheng X, Li B, Zeng J, Yan M, He Y, Zhang X, Zeng H, Ma D, Chen P, Liang K, Jiang L, Wang Y, Zhao D, Kong B. Sequential Superassembly of Nanofiber Arrays to Carbonaceous Ordered Mesoporous Nanowires and Their Heterostructure Membranes for Osmotic Energy Conversion. J Am Chem Soc 2021; 143:6922-6932. [PMID: 33929189 DOI: 10.1021/jacs.1c00547] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The capture of sustainable energy from a salinity gradient, in particular, using renewable biomass-derived functional materials, has attracted significant attention. In order to convert osmotic energy to electricity, many membrane materials with nanofluidic channels have been developed. However, the high cost, complex preparation process, and low output power density still restrict the practical application of traditional membranes. Herein, we report the synthesis of highly flexible and mechanically robust nanofiber-arrays-based carbonaceous ordered mesoporous nanowires (CMWs) through a simple and straightforward soft-templating hydrothermal carbonization approach. This sequential superassembly strategy shows a high yield and great versatility in controlling the dimensions of CMWs with the aspect ratio changes from about 3 to 39. Furthermore, these CMWs can be used as novel building blocks to construct functional hybrid membranes on macroporous alumina. This nanofluidic membrane with asymmetric geometry and charge polarity exhibits low resistance and high-performance energy conversion. This work opens a solution-based route for the one-pot preparation of CMWs and functional heterostructure membranes for various applications.
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Affiliation(s)
- Lei Xie
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Shan Zhou
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Jinrong Liu
- Advanced Materials and Catalysis Group, Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310028, P. R. China
| | - Beilei Qiu
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Tianyi Liu
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Qirui Liang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Xiaozhong Zheng
- Advanced Materials and Catalysis Group, Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310028, P. R. China
| | - Ben Li
- Advanced Materials and Catalysis Group, Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310028, P. R. China
| | - Jie Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Miao Yan
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Yanjun He
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Xin Zhang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Hui Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Ding Ma
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Pu Chen
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
| | - Kang Liang
- School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia
| | - Lei Jiang
- Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yong Wang
- Advanced Materials and Catalysis Group, Institute of Catalysis, Department of Chemistry, Zhejiang University, Hangzhou 310028, P. R. China
| | - Dongyuan Zhao
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials, Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai 200438, P. R. China
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Tvorynska S, Barek J, Josypčuk B. Acetylcholinesterase-choline oxidase-based mini-reactors coupled with silver solid amalgam electrode for amperometric detection of acetylcholine in flow injection analysis. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.113883] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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7
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An acetylcholinesterase biosensor based on doping Au nanorod@SiO2 nanoparticles into TiO2-chitosan hydrogel for detection of organophosphate pesticides. Biosens Bioelectron 2019; 141:111452. [DOI: 10.1016/j.bios.2019.111452] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/18/2019] [Accepted: 06/19/2019] [Indexed: 11/23/2022]
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8
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Ou Y, Buchanan AM, Witt CE, Hashemi P. Frontiers in Electrochemical Sensors for Neurotransmitter Detection: Towards Measuring Neurotransmitters as Chemical Diagnostics for Brain Disorders. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2019; 11:2738-2755. [PMID: 32724337 PMCID: PMC7386554 DOI: 10.1039/c9ay00055k] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
It is extremely challenging to chemically diagnose disorders of the brain. There is hence great interest in designing and optimizing tools for direct detection of chemical biomarkers implicated in neurological disorders to improve diagnosis and treatment. Tools that are capable of monitoring brain chemicals, neurotransmitters in particular, need to be biocompatible, perform with high spatiotemporal resolution, and ensure high selectivity and sensitivity. Recent advances in electrochemical methods are addressing these criteria; the resulting devices demonstrate great promise for in vivo neurotransmitter detection. None of these devices are currently used for diagnostic purposes, however these cutting-edge technologies are promising more sensitive, selective, faster, and less invasive measurements. Via this review we highlight significant technical advances and in vivo studies, performed in the last 5 years, that we believe will facilitate the development of diagnostic tools for brain disorders.
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Affiliation(s)
- Yangguang Ou
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia SC
| | - Anna Marie Buchanan
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia SC
| | - Colby E. Witt
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia SC
| | - Parastoo Hashemi
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia SC
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Itoh T, Matsuura SI, Chuong TT, Tanaike O, Hamakawa S, Shimizu T. Successful Mesoporous Silica Encapsulation of Optimally Functional EcDOS (E. coli Direct Oxygen Sensor), a Heme-based O 2-Sensing Phosphodiesterase. ANAL SCI 2019; 35:329-335. [PMID: 30449836 DOI: 10.2116/analsci.18p449] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The heme-based O2 sensor from Escherichia coli, EcDOS, exerts phosphodiesterase activity towards cyclic-di-GMP (c-di-GMP), an important second messenger that regulates biofilm formation, virulence, and other important functions necessary for bacterial survival. EcDOS is a two-domain protein composed of an N-terminal heme-bound O2-sensing domain and a C-terminal functional domain. O2 binding to the heme Fe(II) complex in the O2-sensing domain substantially enhances the catalytic activity of the functional domain, a property with potentially promising medical applications. Mesoporous silica is a useful material with finite-state machine-like features suitable for mediating numerous enzymatic functions. Here, we successfully encapsulated EcDOS into mesoporous silica, and demonstrated that encapsulated EcDOS was substantially activated by CO, an alternative signaling molecule used in place of O2, exhibiting the same activity as the native enzyme in aqueous solution. Encapsulated EcDOS was sufficiently stable to exert its enzymatic function over several experimental cycles under aerobic conditions at room temperature. Thus, the present study demonstrates the successful encapsulation of the heme-based O2 sensor EcDOS into mesoporous silica and shows that the native gas-stimulated function of EcDOS is well conserved. As such, this represents the first application of mesoporous silica to an oxygen-sensing-or any gas-sensing-enzyme.
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Affiliation(s)
- Tetsuji Itoh
- National Institute of Advanced Industrial Science and Technology (AIST)
| | | | - Tracy T Chuong
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Osamu Tanaike
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Satoshi Hamakawa
- National Institute of Advanced Industrial Science and Technology (AIST)
| | - Toru Shimizu
- National Institute of Advanced Industrial Science and Technology (AIST)
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10
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Immobilization of acetylcholinesterase on functionalized SBA-15 mesoporous molecular sieve for detection of organophosphorus and carbamate pesticide. CHINESE CHEM LETT 2018. [DOI: 10.1016/j.cclet.2017.10.033] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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11
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12
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Bapat G, Labade C, Chaudhari A, Zinjarde S. Silica nanoparticle based techniques for extraction, detection, and degradation of pesticides. Adv Colloid Interface Sci 2016; 237:1-14. [PMID: 27780560 DOI: 10.1016/j.cis.2016.06.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 05/31/2016] [Accepted: 06/01/2016] [Indexed: 12/07/2022]
Abstract
Silica nanoparticles (SiNPs) find applications in the fields of drug delivery, catalysis, immobilization and sensing. Their synthesis can be mediated in a facile manner and they display broad range compatibility and stability. Their existence in the form of spheres, wires and sheets renders them suitable for varied purposes. This review summarizes the use of silica nanostructures in developing techniques for extraction, detection and degradation of pesticides. Silica nanostructures on account of their sorbent properties, porous nature and increased surface area allow effective extraction of pesticides. They can be modified (with ionic liquids, silanes or amines), coated with molecularly imprinted polymers or magnetized to improve the extraction of pesticides. Moreover, they can be altered to increase their sensitivity and stability. In addition to the analysis of pesticides by sophisticated techniques such as High Performance Liquid Chromatography or Gas chromatography, silica nanoparticles related simple detection methods are also proving to be effective. Electrochemical and optical detection based on enzymes (acetylcholinesterase and organophosphate hydrolase) or antibodies have been developed. Pesticide sensors dependent on fluorescence, chemiluminescence or Surface Enhanced Raman Spectroscopic responses are also SiNP based. Moreover, degradative enzymes (organophosphate hydrolases, carboxyesterases and laccases) and bacterial cells that produce recombinant enzymes have been immobilized on SiNPs for mediating pesticide degradation. After immobilization, these systems show increased stability and improved degradation. SiNP are significant in developing systems for effective extraction, detection and degradation of pesticides. SiNPs on account of their chemically inert nature and amenability to surface modifications makes them popular tools for fabricating devices for 'on-site' applications.
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Tello A, Cao R, Marchant MJ, Gomez H. Conformational Changes of Enzymes and Aptamers Immobilized on Electrodes. Bioconjug Chem 2016; 27:2581-2591. [PMID: 27748603 DOI: 10.1021/acs.bioconjchem.6b00553] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Conformation constitutes a vital property of biomolecules, especially in the cases of enzymes and aptamers, and is essential in defining their molecular recognition ability. When biomolecules are immobilized on electrode surfaces, it is very important to have a control on all the possible conformational changes that may occur, either upon the recognition of their targets or by undesired alterations. Both enzymes and aptamers immobilized on electrodes are susceptible to conformational changes as a response to the nature of the charge of the surface and of the surrounding environment (pH, temperature, ionic strength, etc.). The main goal of this review is to analyze how the conformational changes of enzymes and aptamers immobilized on electrode surfaces have been treated in reports on biosensors and biofuel cells. This topic was selected due to insufficient information found on the actual conformational changes involved in the function of these bioelectrochemical devices despite its importance.
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Affiliation(s)
- Alejandra Tello
- Universidad Andres Bello , Bionanotechnology and Microbiology Lab, Center for Bioinformatics and Integrative Biology (CBIB), Facultad de Ciencias Biológicas, República 239, Santiago, Chile
| | - Roberto Cao
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso , Avenida Universidad 330, Curauma, Valparaíso, Chile
| | - María José Marchant
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso , Avenida Universidad 330, Curauma, Valparaíso, Chile
| | - Humberto Gomez
- Instituto de Química, Facultad de Ciencias, Pontificia Universidad Católica de Valparaíso , Avenida Universidad 330, Curauma, Valparaíso, Chile
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14
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Fabrication and characterization of mesoporous silica nanochannels inside the channels of anodic alumina membrane. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2015.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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15
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Lin D, Li Y, Zhang P, Zhang W, Ding J, Li J, Wei G, Su Z. Fast preparation of MoS2 nanoflowers decorated with platinum nanoparticles for electrochemical detection of hydrogen peroxide. RSC Adv 2016. [DOI: 10.1039/c6ra07591f] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
MoS2 nanoflowers decorated with Pt nanoparticles show enhanced performances for electrochemical H2O2 sensing.
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Affiliation(s)
- Dongmei Lin
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Yang Li
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Panpan Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Wensi Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Junwei Ding
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
| | - Jingfeng Li
- Hybrid Materials Interface Group
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| | - Gang Wei
- Hybrid Materials Interface Group
- Faculty of Production Engineering
- University of Bremen
- D-28359 Bremen
- Germany
| | - Zhiqiang Su
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- 100029 Beijing
- China
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16
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Hua Z, Qin Q, Bai X, Huang X, Zhang Q. An electrochemical biosensing platform based on 1-formylpyrene functionalized reduced graphene oxide for sensitive determination of phenol. RSC Adv 2016. [DOI: 10.1039/c5ra27563f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
A novel electrochemical biosensing platform is proposed. New tyrosinase-based biosensor can be used to detect phenols.
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Affiliation(s)
- Zulin Hua
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Qin Qin
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Xue Bai
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Xin Huang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
| | - Qi Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education
- College of Environment
- Hohai University
- Nanjing 210098
- China
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17
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Etienne M, Zhang L, Vilà N, Walcarius A. Mesoporous Materials-Based Electrochemical Enzymatic Biosensors. ELECTROANAL 2015. [DOI: 10.1002/elan.201500172] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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18
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An integrated platform for gas-diffusion separation and electrochemical determination of ethanol on fermentation broths. Anal Chim Acta 2015; 875:33-40. [DOI: 10.1016/j.aca.2015.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 11/23/2022]
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