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Caruncho-Pérez S, Díez AM, Prado-Comesaña A, Pazos M, Sanromán MÁ, González-Romero E. Decorated Electrode Surfaces with Nanostructures and Metal-Organic Frameworks as Transducers for Sensing. SENSORS (BASEL, SWITZERLAND) 2024; 24:6745. [PMID: 39460225 PMCID: PMC11511523 DOI: 10.3390/s24206745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 10/14/2024] [Accepted: 10/17/2024] [Indexed: 10/28/2024]
Abstract
In this study, several materials are presented as modifiers of the screen-printed carbon electrodes with the aim of developing new sensing platforms for the voltammetric analysis of drugs. Specifically, Clotiapine and Sulfamethoxazole were selected as models for antipsychotics and antibiotics, respectively. Different nanostructures were studied as modifiers, including both transition metals and carbon-based materials. Moreover, biochar and two metal-organic frameworks (MOFs) were tested as well. The NH2-MIL-125(Ti) MOF showed an 80% improvement in the analytical signal of Sulfamethoxazole, but it partially overlapped with an additional signal associated with the loss of the MOF ligand. For this reason, several immobilization strategies were tested, but none of them met the requirements for the development of a sensor for this analyte. Conversely, carbon nanotubes and the NH2-MIL-101(Fe) MOF were successfully applied for the analysis of Clotiapine in the medicine Etumine®, with RSD below 2% and relative errors that did not exceed 9% in any case, which demonstrates the precision and accuracy achieved with the tested modifications. Despite these promising results, it was not possible to lower the limits of detection and quantification, so in this sense further investigation must be performed to increase the sensitivity of the developed sensors.
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Affiliation(s)
- Sara Caruncho-Pérez
- Department of Analytical and Food Chemistry, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain;
- CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain; (A.M.D.); (M.P.); (M.Á.S.)
| | - Aida M. Díez
- CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain; (A.M.D.); (M.P.); (M.Á.S.)
| | - Ana Prado-Comesaña
- Department of Analytical and Food Chemistry, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain;
- CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain; (A.M.D.); (M.P.); (M.Á.S.)
| | - Marta Pazos
- CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain; (A.M.D.); (M.P.); (M.Á.S.)
| | - María Ángeles Sanromán
- CINTECX, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain; (A.M.D.); (M.P.); (M.Á.S.)
| | - Elisa González-Romero
- Department of Analytical and Food Chemistry, University of Vigo, Campus As Lagoas-Marcosende, 36310 Vigo, Spain;
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Reinikovaite V, Matulevicius M, Elsakova A, Drobysh M, Liustrovaite V, Luksa A, Jafarov A, Slibinskas R, Ramanavicius A, Baradoke A. Electrochemical capacitance spectroscopy based determination of antibodies against SARS-CoV-2 virus spike protein. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 903:166447. [PMID: 37604377 DOI: 10.1016/j.scitotenv.2023.166447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/23/2023]
Abstract
In this study, we are reporting a novel electrochemical capacitance spectroscopy (ECS) platform designed for the sensitive and label-free detection of antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) virus spike protein (anti-rS) in diluted blood serum. The determination of anti-rS is crucial for identification individuals who have been infected by SARS-CoV-2 virus and may have acquired immunity. The rS protein was immobilized on a screen-printed carbon electrode, which was incubated in diluted blood serum containing anti-rS antibodies. Label-free ECS was applied for the determination of interaction between immobilized rS and free-standing anti-rS. Here reported bioanalytical platform demonstrated high sensitivity and specificity in detecting anti-rS, achieving a limit of detection of 4.38 nM. This versatile platform could be further enhanced by applying various electrode materials and adapting this platform to detect antibodies against some other proteins. Our findings have significant implications for the development of affordable, scalable biosensing platforms capable to provide rapid and accurate public health screening and monitoring, particularly in the context of the coronavirus disease 2019 (COVID-19) pandemic.
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Affiliation(s)
- Viktorija Reinikovaite
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania
| | - Matas Matulevicius
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania
| | - Alexandra Elsakova
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; Institute of Technology, Nooruse 1, 50411 Tartu, Estonia
| | - Maryia Drobysh
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania
| | - Viktorija Liustrovaite
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania
| | - Algirdas Luksa
- State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania
| | - Ali Jafarov
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; Institute of Biomedicine and Translational Medicine, Ravila 19, 50412 Tartu, Estonia
| | - Rimantas Slibinskas
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; Institute of Biotechnology, Life Sciences Center, Vilnius University, Sauletekio ave. 7, LT-10257 Vilnius, Lithuania
| | - Arunas Ramanavicius
- Department of Physical Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko str. 24, 03225 Vilnius, Lithuania; State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania.
| | - Ausra Baradoke
- State Research Institute Center for Physical Sciences and Technology, Sauletekio ave. 3, 10007 Vilnius, Lithuania
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Lee J, Suh HN, Ahn S, Park HB, Lee JY, Kim HJ, Kim SH. Disposable electrocatalytic sensor for whole blood NADH monitoring. Sci Rep 2022; 12:16716. [PMID: 36202932 PMCID: PMC9537416 DOI: 10.1038/s41598-022-20995-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Accepted: 09/21/2022] [Indexed: 11/10/2022] Open
Abstract
Monitoring nicotinamide adenine dinucleotide (NADH) is important because NADH is involved in cellular redox reactions and cellular energy production. Currently, few biosensors quantify NADH in whole blood. However, they still have limitations due to several defects, including poor repeatability, long analysis time, and their requirement of extra sample pretreatment. In this study, we developed electrocatalytic sensors using screen-printed electrodes with a redox-active monolayer 4′-mercapto-N-phenylquinone diamine formed by a self-assembled monolayer of a 4-aminothiophenol (4-ATP). We exhibited their behavior as electrocatalysts toward the oxidation of NADH in whole blood. Finally, the electrocatalytic sensors maintained stability and exhibited 3.5 µM limit of detection, with 0.0076 ± 0.0006 µM/µA sensitivity in a mouse’s whole blood. As proof of concept, a polyhexamethylene guanidine phosphate–treated mouse model was used to induce inflammatory and fibrotic responses, and NADH level was measured for 45 days. This work demonstrates the potential of electrocatalytic sensors to analyze NADH in whole blood and to be developed for extensive applications.
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Veerakumar P, Hung ST, Hung PQ, Lin KC. Review of the Design of Ruthenium-Based Nanomaterials and Their Sensing Applications in Electrochemistry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:8523-8550. [PMID: 35793416 DOI: 10.1021/acs.jafc.2c01856] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
In this review, ruthenium nanoparticles (Ru NPs)-based functional nanomaterials have attractive electrocatalytic characteristics and they offer considerable potential in a number of fields. Ru-based binary or multimetallic NPs are widely utilized for electrode modification because of their unique electrocatalytic properties, enhanced surface-area-to-volume ratio, and synergistic effect between two metals provides as an effective improved electrode sensor. This perspective review suggests the current research and development of Ru-based nanomaterials as a platform for electrochemical (EC) sensing of harmful substances, biomolecules, insecticides, pharmaceuticals, and environmental pollutants. The advantages and limitations of mono-, bi-, and multimetallic Ru-based nanocomposites for EC sensors are discussed. Besides, the relevant EC properties and analyte sensing approaches are also presented. On the basis of these insights, we highlighted recent results for synthesizing techniques and EC environmental pollutant sensors from the perspectives of diverse supports, including graphene, carbon nanotubes, silica, semiconductors, metal sulfides, and polymers. Finally, this work overviews the modern improvements in the utilization of Ru-based nanocomposites on the basis for electroanalytical sensors as well as suggestions for the field's future development.
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Affiliation(s)
- Pitchaimani Veerakumar
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Shih-Tung Hung
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - Pei-Qi Hung
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
| | - King-Chuen Lin
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
- Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 10617, Taiwan
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5
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Reddy Gajjala RK, Gade PS, Bhatt P, Vishwakarma N, Singh S. Enzyme decorated dendritic bimetallic nanocomposite biosensor for detection of HCHO. Talanta 2022; 238:123054. [PMID: 34801910 DOI: 10.1016/j.talanta.2021.123054] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/20/2021] [Accepted: 11/07/2021] [Indexed: 01/23/2023]
Abstract
In recent times, bi- and tri-metallic nanocomposites are being extensively studied to improve the catalytic surface and sensitivity of detection. In this study, we designed a formaldehyde dehydrogenase decorated Cys-AuPd-ErGO nanocomposite with fern like AuPd dendrites deposited on reduced graphene oxide (ErGO) on screen printed electrode (SPE) for determination of NADH and successfully demonstrated its application for detection of HCHO. This biosensor exhibited direct electron transfer by lowering the oxidation potential of NADH from +0.63 V to 0.32 V vs Ag/AgCl, avoiding usage of electron mediators. The sensor LOD was 0.3 μM HCHO with excellent sensitivity of 70 μA/μM/cm2 and linear detection range between 1 μM and 100 μM during chronoamperometric studies at applied over potential of +0.35 V vs Ag/AgCl. The sensor was tested for its performance in simulated HCHO adulterated samples of fish and milk, and appreciable recoveries (88-104%) at tested concentrations indicated good sensor performance. It was also validated against conventional method of HPLC with highly acceptable correlation coefficient of 0.99, indicating successful fabrication of a simple, "on site" disposable sensor for HCHO detection. The developed biosensor can also find wide application in quantitative measurement of NADH and analytes involved in reactions with the co-enzyme.
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Affiliation(s)
- Rajendra Kumar Reddy Gajjala
- Microbiology & Fermentation Technology Department, CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India
| | - Pravin Savata Gade
- Microbiology & Fermentation Technology Department, CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, 201002, India
| | - Praveena Bhatt
- Microbiology & Fermentation Technology Department, CSIR-Central Food Technological Research Institute (CFTRI), Mysuru, 570020, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, 201002, India.
| | - Neelam Vishwakarma
- Agrionics- Post Harvest Technologies, CSIR- Central Scientific Instruments Organization (CSIO), Chandigarh, India, 160030; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, 201002, India
| | - Suman Singh
- Agrionics- Post Harvest Technologies, CSIR- Central Scientific Instruments Organization (CSIO), Chandigarh, India, 160030; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, UP, 201002, India
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6
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Torres-Rivero K, Florido A, Bastos-Arrieta J. Recent Trends in the Improvement of the Electrochemical Response of Screen-Printed Electrodes by Their Modification with Shaped Metal Nanoparticles. SENSORS 2021; 21:s21082596. [PMID: 33917220 PMCID: PMC8067965 DOI: 10.3390/s21082596] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 03/25/2021] [Accepted: 04/01/2021] [Indexed: 12/04/2022]
Abstract
Novel sensing technologies proposed must fulfill the demands of wastewater treatment plants, the food industry, and environmental control agencies: simple, fast, inexpensive, and reliable methodologies for onsite screening, monitoring, and analysis. These represent alternatives to conventional analytical methods (ICP-MS and LC-MS) that require expensive and non-portable instrumentation. This needs to be controlled by qualified technicians, resulting moreover in a long delay between sampling and high-cost analysis. Electrochemical analysis based on screen-printed electrodes (SPEs) represents an excellent miniaturized and portable alternative due to their disposable character, good reproducibility, and low-cost commercial availability. SPEs application is widely extended, which makes it important to design functionalization strategies to improve their analytical response. In this sense, different types of nanoparticles (NPs) have been used to enhance the electrochemical features of SPEs. NPs size (1–100 nm) provides them with unique optical, mechanical, electrical, and chemical properties that give the modified SPEs increased electrode surface area, increased mass-transport rate, and faster electron transfer. Recent progress in nanoscale material science has led to the creation of reproducible, customizable, and simple synthetic procedures to obtain a wide variety of shaped NPs. This mini-review attempts to present an overview of the enhancement of the electrochemical response of SPEs when NPs with different morphologies are used for their surface modification
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Affiliation(s)
- Karina Torres-Rivero
- Departament d’Enginyeria Química, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, BarcelonaTEch (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; (K.T.-R.); (A.F.)
- Barcelona Research Center for Multiscale Science and Engineering, Av. Eduard Maristany 16, 08019 Barcelona, Spain
| | - Antonio Florido
- Departament d’Enginyeria Química, Escola d’Enginyeria de Barcelona Est (EEBE), Universitat Politècnica de Catalunya, BarcelonaTEch (UPC), Av. Eduard Maristany 16, 08019 Barcelona, Spain; (K.T.-R.); (A.F.)
- Barcelona Research Center for Multiscale Science and Engineering, Av. Eduard Maristany 16, 08019 Barcelona, Spain
| | - Julio Bastos-Arrieta
- Grup de Biotecnologia Molecular i Industrial, Universitat Politècnica de Catalunya, Rambla Sant Nebridi 22, Edifici Gaia TR14, 08222 Terrassa, Spain
- Correspondence:
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7
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Baradoke A, Santos A, Bueno PR, Davis JJ. Introducing polymer conductance in diagnostically relevant transduction. Biosens Bioelectron 2021; 172:112705. [PMID: 33166803 PMCID: PMC7581358 DOI: 10.1016/j.bios.2020.112705] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 09/30/2020] [Accepted: 10/06/2020] [Indexed: 02/03/2023]
Abstract
In this work we demonstrate that an impedance derived capacitance method is able to cleanly resolve the resonant conductance characteristics of an electrode-confined polymer film. In decorating the film with receptors, this conductance is thereafter modulated by the capturing of specific targets, demonstrated herein with C-reactive protein. This entirely reagentless and single step marker quantification is relevant to the drive of moving assays to a scaleable format requiring minimal user intervention. Relaxation conductance was used to create a new transducer signal concept. This relaxation conductance transducer signal concept was proved to be valid. Conductive redox polymer was used as sensitive function for the new signal concept. C-reactive protein was successfully detected in suitable low concentrations. This transducer principle is equally applicable to any other target.
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Affiliation(s)
- Ausra Baradoke
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Adriano Santos
- Institute of Chemistry, São Paulo State University (UNESP), 14800-060, Araraquara, São Paulo, Brazil
| | - Paulo R Bueno
- Institute of Chemistry, São Paulo State University (UNESP), 14800-060, Araraquara, São Paulo, Brazil.
| | - Jason J Davis
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom.
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Yang H, Hou J, Wang Z, Zhou Q, Xu C. Porous PtAg nanoshells/reduced graphene oxide based biosensors for low-potential detection of NADH. Mikrochim Acta 2020; 187:544. [PMID: 32886247 DOI: 10.1007/s00604-020-04530-1] [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] [Received: 01/03/2020] [Accepted: 08/22/2020] [Indexed: 12/25/2022]
Abstract
A superior NADH sensing platform was constructed based on porous PtAg nanoshells supported on reduced graphene oxide (PtAg/rGO) in the absence of any enzymes and redox mediators. The PtAg/rGO composite was prepared via one-step reduction combined with galvanic replacement reaction. The as-made PtAg/rGO assembles multiple structural advantages of coherent conductive matrix, rich electroactive sites, and high specific surface area, accompanied by the unique alloying effect. The PtAg/rGO possesses adequate active reaction sites and fluent electron transport pathway towards the electrocatalytic NADH oxidation, thus presenting significantly increased oxidation current and negative shift of 330 mV in applied potential relative to the bare GCE. By virtues of the outstanding electrocatalytic activity, PtAg/rGO exhibits effective amperometric detection of NADH at 0.15 V within a wide linear concentration range of 2-2378 μM, a high sensitivity of 92.62 μA mM-1 cm-2, low detection limit of 0.2 μM, and long-term detection over 2500 s. Moreover, the as-constructed biosensors can achieve accurate NADH detection in human serum samples, indicating its promising application feasibility in fundamental and clinic research. Graphical Abstract Porous PtAg alloy nanoshells supported on reduced graphene oxide (PtAg/rGO) was prepared via a facile one-step reduction and spontaneous replacement reaction strategy. A sensitive and highly stable electrochemical biosensor based on PtAg/rGO is constructed for the quantitative detection of NADH at low applied potential.
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Affiliation(s)
- Hongxiao Yang
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan, 250022, Shandong Province, China
| | - Jiagang Hou
- Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250353, Shandong Province, China
| | - Zhaohui Wang
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan, 250022, Shandong Province, China
| | - Qiuxia Zhou
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan, 250022, Shandong Province, China
| | - Caixia Xu
- Institute for Advanced Interdisciplinary Research (iAIR), School of Chemistry and Chemical Engineering, Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong, University of Jinan, Jinan, 250022, Shandong Province, China.
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9
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Rębiś T, Falkowski M, Milczarek G, Goslinski T. Electrocatalytic NADH Sensing using Electrodes Modified with 2‐[2‐(4‐Nitrophenoxy)ethoxy]ethylthio‐Substituted Porphyrazine/Single‐Walled Carbon Nanotube Hybrids. ChemElectroChem 2020. [DOI: 10.1002/celc.202000430] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tomasz Rębiś
- Institute of Chemistry and Technical ElectrochemistryPoznan University of Technology Berdychowo 4 60-965 Poznan Poland
| | - Michał Falkowski
- Department of Medicinal ChemistryCollegium Medicum in BydgoszczFaculty of PharmacyNicolaus Copernicus University in Toruń Dr. A. Jurasza 2 85-089 Bydgoszcz Poland
| | - Grzegorz Milczarek
- Institute of Chemistry and Technical ElectrochemistryPoznan University of Technology Berdychowo 4 60-965 Poznan Poland
| | - Tomasz Goslinski
- Department of Chemical Technology of DrugsPoznan University of Medical Sciences Grunwaldzka 6 60-780 Poznan Poland
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Baradoke A, Hein R, Li X, Davis JJ. Reagentless Redox Capacitive Assaying of C-Reactive Protein at a Polyaniline Interface. Anal Chem 2020; 92:3508-3511. [PMID: 32046485 DOI: 10.1021/acs.analchem.9b05633] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Methods that enable the sensitive and label-free detection of protein biomarkers are well-positioned to make potentially significant contributions to diagnostics and derived personalized healthcare. In support of this goal, a myriad of (electrochemical) methodologies have been developed; recently, electrochemical capacitance spectroscopy emerged as an impedance-derived approach which, in employing surface-confined redox-transducers, circumvents problems associated with the use of solution-phase redox-probes. Herein, we expand this scope by utilizing phytic acid-doped polyaniline as a novel redox-charging polymer support enabling the reagentless assaying of C-reactive protein in serum with good sensitivity. The construction of the sensory interface via electropolymerization allows facile tuning of the surface coverage and redox (capacitive) properties of the polymers, which, in turn, modulate both assay selectivity, fouling, and sensitivity. Significantly, this methodology is readily extendable to a wide range of electrode materials and analytes.
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Affiliation(s)
- Ausra Baradoke
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Robert Hein
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Xiaoxiong Li
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
| | - Jason J Davis
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, United Kingdom
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11
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Waqas M, Lan J, Zhang X, Fan Y, Zhang P, Liu C, Jiang Z, Wang X, Zeng J, Chen W. Fabrication of Non‐enzymatic Electrochemical Glucose Sensor Based on Pd−Mn Alloy Nanoparticles Supported on Reduced Graphene Oxide. ELECTROANAL 2020. [DOI: 10.1002/elan.201900705] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Muhammad Waqas
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Jianjun Lan
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Xiaoxia Zhang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Youjun Fan
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Panyu Zhang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Chengzhou Liu
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Zhe Jiang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Xiaoqu Wang
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Jianqiang Zeng
- Guangxi Key Laboratory of Low Carbon Energy Materials College of Chemistry and Pharmaceutical SciencesGuangxi Normal University Guilin 541004 China
| | - Wei Chen
- State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 Jilin China
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12
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Shifrina ZB, Matveeva VG, Bronstein LM. Role of Polymer Structures in Catalysis by Transition Metal and Metal Oxide Nanoparticle Composites. Chem Rev 2019; 120:1350-1396. [DOI: 10.1021/acs.chemrev.9b00137] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zinaida B. Shifrina
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, Moscow, 119991 Russia
| | - Valentina G. Matveeva
- Tver State Technical University, Department of Biotechnology and Chemistry, 22 A. Nikitina St, 170026 Tver, Russia
| | - Lyudmila M. Bronstein
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, Moscow, 119991 Russia
- Indiana University, Department of Chemistry, Bloomington, 800 East Kirkwood Avenue, Indiana 47405, United States
- King Abdulaziz University, Faculty of Science, Department of Physics, P.O. Box 80303, Jeddah 21589, Saudi Arabia
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13
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Moscoso R, Barrientos C, Moris S, Squella J. Electrocatalytic oxidation of NADH in a new nanostructured interface with an entrapped butylpyrene nitroaromatic derivative. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.02.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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