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Santos DJAD, Oliveira TRD, Araújo GMD, Pott-Junior H, Melendez ME, Sabino EC, Leite OD, Faria RC. An electrochemical genomagnetic assay for detection of SARS-CoV-2 and Influenza A viruses in saliva. Biosens Bioelectron 2024; 255:116210. [PMID: 38537427 DOI: 10.1016/j.bios.2024.116210] [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: 12/31/2023] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 04/15/2024]
Abstract
Viral respiratory infections represent a major threat to the population's health globally. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes COVID-19 disease and in some cases the symptoms can be confused with Influenza disease caused by the Influenza A viruses. A simple, fast, and selective assay capable of identifying the etiological agent and differentiating the diseases is essential to provide the correct clinical management to the patient. Herein, we described the development of a genomagnetic assay for the selective capture of viral RNA from SARS-CoV-2 and Influenza A viruses in saliva samples and employing a simple disposable electrochemical device for gene detection and quantification. The proposed method showed excellent performance detecting RNA of SARS-CoV-2 and Influenza A viruses, with a limit of detection (LoD) and limit of quantification (LoQ) of 5.0 fmol L-1 and 8.6 fmol L-1 for SARS-CoV-2, and 1.0 fmol L-1 and 108.9 fmol L-1 for Influenza, respectively. The genomagnetic assay was employed to evaluate the presence of the viruses in 36 saliva samples and the results presented similar responses to those obtained by the real-time reverse transcription-polymerase chain reaction (RT-PCR), demonstrating the reliability and capability of a method as an alternative for the diagnosis of COVID-19 and Influenza with point-of-care capabilities.
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Affiliation(s)
| | | | | | - Henrique Pott-Junior
- Department of Medicine, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil
| | | | - Ester Cerdeira Sabino
- Institute of Tropical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, 05403-000, Brazil
| | - Oldair Donizeti Leite
- Department of Chemistry, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil; Federal Technological University of Paraná, Campus Medianeira, Medianeira, PR, 85884-000, Brazil.
| | - Ronaldo Censi Faria
- Department of Chemistry, Federal University of São Carlos, São Carlos, SP, 13565-905, Brazil.
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A sensitive and economical electrochemical platform for detection of food additive tert-butylhydroquinone based on porous Co3O4 nanorods embellished chemically oxidized carbon black. Food Control 2022. [DOI: 10.1016/j.foodcont.2022.108844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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3
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Michalkiewicz S, Skorupa A, Jakubczyk M. Carbon Materials in Electroanalysis of Preservatives: A Review. MATERIALS (BASEL, SWITZERLAND) 2021; 14:7630. [PMID: 34947225 PMCID: PMC8709479 DOI: 10.3390/ma14247630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 12/02/2021] [Accepted: 12/09/2021] [Indexed: 12/24/2022]
Abstract
Electrochemical sensors in electroanalysis are a particularly useful and relatively simple way to identify electroactive substances. Among the materials used to design sensors, there is a growing interest in different types of carbon. This is mainly due to its non-toxic properties, low cost, good electrical conductivity, wide potential range, and the possibility of using it in both aqueous and nonaqueous media. The electrodes made of carbon, and especially of carbon modified with different materials, are currently most often used in the voltammetric analysis of various compounds, including preservatives. The objective of this paper is to present the characteristics and suitability of different carbon materials for the construction of working electrodes used in the voltammetric analysis. Various carbon materials were considered and briefly discussed. Their analytical application was presented on the example of the preservatives commonly used in food, cosmetic, and pharmaceutical preparations. It was shown that for the electroanalysis of preservatives, mainly carbon electrodes modified with various modifiers are used. These modifications ensure appropriate selectivity, high sensitivity, low limits of detection and quantification, as well as a wide linearity range of voltammetric methods of their identification and determination.
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Affiliation(s)
- Slawomir Michalkiewicz
- Institute of Chemistry, Jan Kochanowski University, PL-25406 Kielce, Poland; (A.S.); (M.J.)
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4
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Immobilized Enzymes-Based Biosensing Cues for Strengthening Biocatalysis and Biorecognition. Catal Letters 2021. [DOI: 10.1007/s10562-021-03866-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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David M, Florescu M, Bala C. Biosensors for Antioxidants Detection: Trends and Perspectives. BIOSENSORS-BASEL 2020; 10:bios10090112. [PMID: 32882924 PMCID: PMC7560058 DOI: 10.3390/bios10090112] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/27/2020] [Accepted: 08/29/2020] [Indexed: 01/03/2023]
Abstract
Herein we review the recent advances in biosensors for antioxidants detection underlying principles particularly emphasizing advantages along with limitations regarding the ability to discriminate between the specific antioxidant or total content. Recent advances in both direct detection of antioxidants, but also on indirect detection, measuring the induced damage on DNA-based biosensors are critically analysed. Additionally, latest developments on (bio)electronic tongues are also presented.
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Affiliation(s)
- Melinda David
- Department of Fundamental, Prophylactic and Clinical Disciplines, Faculty of Medicine, Transilvania University of Brasov, Str. Universitatii no. 1, 500068 Brasov, Romania; (M.D.); (M.F.)
| | - Monica Florescu
- Department of Fundamental, Prophylactic and Clinical Disciplines, Faculty of Medicine, Transilvania University of Brasov, Str. Universitatii no. 1, 500068 Brasov, Romania; (M.D.); (M.F.)
| | - Camelia Bala
- Laboratory for Quality Control and Process Monitoring, University of Bucharest, 4-12 Elisabeta Blvd., 030018 Bucharest, Romania
- Department of Analytical Chemistry, University of Bucharest, 4-12 Elisabeta Blvd., 030018 Bucharest, Romania
- Correspondence:
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Karthikeyan R, Nelson DJ, Ajith A, John SA. Hetero atoms doped carbon dots modified electrodes for the sensitive and selective determination of phenolic anti-oxidant in coconut oil. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113297] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ruiz-Hitzky E, Darder M, Alcântara ACS, Wicklein B, Aranda P. Functional Nanocomposites Based on Fibrous Clays. FUNCTIONAL POLYMER COMPOSITES WITH NANOCLAYS 2016. [DOI: 10.1039/9781782626725-00001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
This chapter is focused on functional nanocomposites based on the use of the microfibrous clays sepiolite and palygorskite as efficient fillers for diverse types of polymer matrices, from typical thermoplastics to biopolymers. The main features that govern the interaction between the silicates and the polymer matrix are discussed. The introduction addresses the structural and textural features of the fibrous silicates, as well as the possible synthetic approaches to increase the compatibility of these nanofillers with the polymeric matrix. Additionally, these clays can be easily functionalized through their surface silanol groups based on chemical reactions or by anchoring of nanoparticles. This allows for the preparation of a wide variety of functional polymer–clay nanocomposites. Thereafter, some relevant examples of nanocomposites derived from conventional polymers are reported, as well as of those based on polymers that exhibit electrical conductivity. Lastly, selected works employing sepiolite or palygorskite as fillers in polymeric matrixes of natural origin are discussed, showing the wide application of these resulting nanocomposites as bioplastics, as well as in biomedicine, environmental remediation and the development of sensor devices.
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Affiliation(s)
- Eduardo Ruiz-Hitzky
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Margarita Darder
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Ana C. S. Alcântara
- Universidade Federal do Maranhão (UFMA), Departamento de Química (DEQUI) São Luís-MA Brazil
| | - Bernd Wicklein
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
| | - Pilar Aranda
- Instituto de Ciencia de Materiales de Madrid CSIC, c/ Sor Juana Inés de la Cruz 3 28049 Madrid Spain
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Synthesis of Surface Molecularly Imprinted Poly(methacrylic acid-hemin) on Carbon Nanotubes for the Voltammetric Simultaneous Determination of Antioxidants from Lipid Matrices and Biodiesel. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.06.174] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wu L, Yin W, Tang K, Li D, Shao K, Zuo Y, Ma J, Liu J, Han H. Enzymatic biosensor of horseradish peroxidase immobilized on Au-Pt nanotube/Au-graphene for the simultaneous determination of antioxidants. Anal Chim Acta 2016; 933:89-96. [PMID: 27497001 DOI: 10.1016/j.aca.2016.06.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/07/2016] [Accepted: 06/16/2016] [Indexed: 12/01/2022]
Abstract
A new electrochemical method has been proposed for the simultaneous determination of butylated hydroxyanisole (BHA) and propyl gallate (PG) in food matrices based on enzymatic biosensors. Spiny Au-Pt nanotubes (SAP NTs) was first synthesized and demonstrated to exhibit intrinsic peroxidase and catalase-like activity. The structure of SAP NTs provides large surface area and favorable medium for electron transfer, on which HRP were immobilized and acted as enzymatic biosensor for the simultaneous detection of BHA and PG. The results revealed that BHA and PG both have well-defined oxidation waves with peak potentials of 624 and 655 mV, respectively. Under the optimal conditions, the method behaved satisfactory analytical performance towards BHA and PG with a wide linear range of 0.3-50 mg L(-1) and 0.1-100 mg L(-1), as well as a detection limit of 0.046 mg L(-1) and 0.024 mg L(-1) (3σ/slope), respectively. Besides, the proposed method exhibits good sensitivity, stability and reproducibility, providing an alternative to fabricate electrode and construct sensitive biosensors.
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Affiliation(s)
- Long Wu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Wenmin Yin
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kun Tang
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Dian Li
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Kang Shao
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Yunpeng Zuo
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jing Ma
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Jiawei Liu
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Heyou Han
- State Key Laboratory of Agricultural Microbiology, College of Food Science and Technology, College of Science, Huazhong Agricultural University, Wuhan 430070, PR China.
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Sonmez B, Sayin S, Yalcinkaya EE, Seleci DA, Yildiz HB, Demirkol DO, Timur S. Calixarene modified montmorillonite: a novel design for biosensing applications. RSC Adv 2014. [DOI: 10.1039/c4ra11818a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we report the synthesis, characterization and application of calixarene (Calix) modified montmorillonite (Mt) as a platform for bio-applications such as biomolecule immobilization and biosensing technologies.
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Affiliation(s)
- Burak Sonmez
- Ege University Faculty of Science
- Biochemistry Department
- 35100 Bornova-Izmir, Turkey
| | - Serkan Sayin
- KTO Karatay University
- Department of Materials Science and Nanotechnology Engineering
- 42020 Konya, Turkey
| | | | - Didem Ag Seleci
- Ege University Faculty of Science
- Biochemistry Department
- 35100 Bornova-Izmir, Turkey
| | - Huseyin Bekir Yildiz
- KTO Karatay University
- Department of Materials Science and Nanotechnology Engineering
- 42020 Konya, Turkey
| | - Dilek Odaci Demirkol
- Ege University Faculty of Science
- Biochemistry Department
- 35100 Bornova-Izmir, Turkey
- Ege University
- Institute of Drug Abuse Toxicology &Pharmaceutical Sciences
| | - Suna Timur
- Ege University Faculty of Science
- Biochemistry Department
- 35100 Bornova-Izmir, Turkey
- Ege University
- Institute of Drug Abuse Toxicology &Pharmaceutical Sciences
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Ruiz-Hitzky E, Darder M, Alcântara ACS, Wicklein B, Aranda P. Recent Advances on Fibrous Clay-Based Nanocomposites. ORGANIC-INORGANIC HYBRID NANOMATERIALS 2014. [DOI: 10.1007/12_2014_283] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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