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Sa'adon SA, Jasni NH, Hamzah HH, Othman N. Electrochemical biosensors for the detection of protozoan parasite: a scoping review. Pathog Glob Health 2024:1-12. [PMID: 39030702 DOI: 10.1080/20477724.2024.2381402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/21/2024] Open
Abstract
The development of rapid, accurate, and efficient detection methods for protozoan parasites can substantially control the outbreak of protozoan parasites infection, which poses a threat to global public health. Idealistically, electrochemical biosensors would be able to overcome the limitations of current detection methods due to their simplified detection procedure, on-site quantitative analysis, rapid detection time, high sensitivity, and portability. The objective of this scoping review is to evaluate the current state of electrochemical biosensors for detecting protozoan parasites. This review followed the most recent Preferred Reporting Items for Systematic Review and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) recommendations. Using electrochemical biosensor and protozoan parasite keywords, a literature search was conducted in PubMed, Scopus, Web of Science, and ScienceDirect on journals published between January 2014 and January 2022. Of the 52 studies, 19 were evaluated for eligibility, and 11 met the review's inclusion criteria to evaluate the effectiveness and limitations of the developed electrochemical biosensor platforms for detecting protozoan parasite including information about the samples, biomarkers, bioreceptors, detection system platform, nanomaterials used in fabrication, and limit of detection (LoD). Most electrochemical biosensors were fabricated using conventional electrodes rather than screen-printed electrodes (SPE). The range of the linear calibration curves for the developed electrochemical biosensors was between 200 ng/ml and 0.77 pM. The encouraging detection performance of the electrochemical biosensors demonstrate their potential as a superior alternative to existing detection techniques. On the other hand, more study is needed to determine the sensitivity and specificity of the electrochemical sensing platform for protozoan parasite detection.
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Affiliation(s)
- Syahrul Amin Sa'adon
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Gelugor, Penang, Malaysia
| | - Nur Hana Jasni
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Gelugor, Penang, Malaysia
| | - Hairul Hisham Hamzah
- School of Health and Life Sciences, Teesside University, Middlesbrough, Tees Valley, UK
| | - Nurulhasanah Othman
- Institute for Research in Molecular Medicine (INFORMM), Universiti Sains Malaysia, Gelugor, Penang, Malaysia
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Oyeyemi OT, Ogundahunsi O, Schunk M, Fatem RG, Shollenberger LM. Neglected tropical disease (NTD) diagnostics: current development and operations to advance control. Pathog Glob Health 2024; 118:1-24. [PMID: 37872790 PMCID: PMC10769148 DOI: 10.1080/20477724.2023.2272095] [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] [Indexed: 10/25/2023] Open
Abstract
Neglected tropical diseases (NTDs) have become important public health threats that require multi-faceted control interventions. As late treatment and management of NTDs contribute significantly to the associated burdens, early diagnosis becomes an important component for surveillance and planning effective interventions. This review identifies common NTDs and highlights the progress in the development of diagnostics for these NTDs. Leveraging existing technologies to improve NTD diagnosis and improving current operational approaches for deployment of developed diagnostics are crucial to achieving the 2030 NTD elimination target. Point-of-care NTD (POC-NTD) diagnostic tools are recommended preferred diagnostic options in resource-constrained areas for mapping risk zones and monitoring treatment efficacy. However, few are currently available commercially. Technical training of remote health care workers on the use of POC-NTD diagnostics, and training of health workers on the psychosocial consequences of these diagnostics are critical in harnessing POC-NTD diagnostic potential. While the COVID-19 pandemic has challenged the possibility of achieving NTD elimination in 2030 due to the disruption of healthcare services and dwindling financial support for NTDs, the possible contribution of NTDs in exacerbating COVID-19 pandemic should motivate NTD health system strengthening.
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Affiliation(s)
- Oyetunde T. Oyeyemi
- Department of Biosciences and Biotechnology, University of Medical Sciences, Ondo, Nigeria
- Department of Biological Sciences, Old Dominion University, Virginia, USA
| | - Olumide Ogundahunsi
- The Central Office for Research and Development (CORD), University of Medical Sciences, Ondo, Nigeria
| | - Mirjam Schunk
- Division of Infectious Diseases and Tropical Medicine, Medical Center of the University of Munich (LMU) institution, Munich, Germany
| | - Ramzy G. Fatem
- Schistosome Biological Supply Center, Theodor Bilharz Research Institute, Giza, Egypt
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3
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Electrochemical Determination of Progesterone in Calf Serum Samples Using a Molecularly Imprinted Polymer Sensor. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Gattani A, Mandal S, Khan M, Jain A, Jesse D, Mishra A, Tiwari S. Novel electrochemical biosensing for detection of neglected tropical parasites of animal origin: Recent advances. ELECTROANAL 2022. [DOI: 10.1002/elan.202200255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Anil Gattani
- Nanaji Deshmukh Veterinary Science University INDIA
| | - Sanju Mandal
- Nanaji Deshmukh Veterinary Science University INDIA
| | - Mahvash Khan
- Nanaji Deshmukh Veterinary Science University INDIA
| | - Anand Jain
- Nanaji Deshmukh Veterinary Science University INDIA
| | | | | | - Sita Tiwari
- Nanaji Deshmukh Veterinary Science University INDIA
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Nanoconjugates based on a novel organic-inorganic hybrid silsesquioxane and gold nanoparticles as hemocompatible nanomaterials for promising biosensing applications. Colloids Surf B Biointerfaces 2022; 213:112355. [PMID: 35158220 DOI: 10.1016/j.colsurfb.2022.112355] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 11/22/2021] [Accepted: 01/20/2022] [Indexed: 12/15/2022]
Abstract
A new hybrid organic-inorganic silsesquioxane material, 3-n-propyl(2-amino-4-methyl)pyridium chloride (SiAMPy+Cl-), was synthesized and successfully applied for the synthesis of stable nanoconjugates with gold nanoparticles (AuNPs-SiAMPy+). SiAMPy+Cl- was obtained through a simple sol-gel procedure by using chloropropyltrimetoxysilane and tetraethylorthosilicate as precursors and 2-amino-4-methylpyridine as the functionalizing agent. The resulting material was characterized by employing FTIR, XRD, and 1H-, 13C-, and 29Si-NMR spectroscopy. The synthesis of AuNPs-SiAMPy+ nanoconjugates was optimized through a 23 full factorial design. UV-VIS, FTIR, TEM, DLS, and ζ-potential measurements were used to characterize the nanoconjugates, which presented a spherical morphology with an average diameter of 5.8 nm. To investigate the existence of toxic effects of AuNPs-SiAMPy+ on blood cells, which is essential for their future biomedical applications, toxicity assays on human erythrocytes and leukocytes were performed. Interestingly, no cytotoxic effects were observed for both types of cells. The nanoconjugates were further applied in the construction of electrochemical immunosensing devices, aiming the detection of anti-Trypanosoma cruzi antibodies in serum as biomarkers of Chagas disease. The AuNPs-SiAMPy+ significantly enhanced the sensitivity of the biodevice, which was able to discriminate between anti-T. cruzi positive and negative serum samples. Thus, the AuNPs-SiAMPy+-based biosensor showed great potential to be used as a new tool to perform fast and accurate diagnosis of Chagas disease. The promising findings described herein strongly confirm the remarkable potential of SiAMPy+Cl- to obtain nanomaterials, which can present notable biomedical properties and applications.
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Li Y, Han R, Chen M, Yang X, Zhan Y, Wang L, Luo X. Electrochemical Biosensor with Enhanced Antifouling Capability Based on Amyloid-like Bovine Serum Albumin and a Conducting Polymer for Ultrasensitive Detection of Proteins in Human Serum. Anal Chem 2021; 93:14351-14357. [PMID: 34648255 DOI: 10.1021/acs.analchem.1c04153] [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
Biofouling has been a substantial burden on biomarker analysis in complex biological media, leading to poor sensitivity and selectivity or even malfunction of the sensing devices. In this work, an electrochemical biosensor with excellent antifouling ability and high stability was fabricated based on amyloid-like bovine serum albumin (AL-BSA) crosslinked with the conducting polymer polyaniline (PANI). Compared with the crosslinked conventional bovine serum albumin (BSA), the crosslinked AL-BSA exhibited enhanced antifouling capability, and it was able to form an effective antifouling film within a significantly short reaction time. With further immobilization of immunoglobulin M (IgM) antibodies onto the prepared AL-BSA surface via the formation of amide bonds, an electrochemical biosensor capable of assaying IgM in human serum samples with superior selectivity and sensitivity was constructed. The biosensor exhibited excellent antifouling performance even in 100% human serum, a low limit of detection down to 2.32 pg mL-1, and acceptable accuracy for real sample analysis compared with the standard enzyme-linked immunosorbent assay for IgM detection. This strategy of using AL-BSA to construct antifouling sensing interfaces provided a reliable diagnostic method for the detection of a series of protein biomarkers in complex biological media.
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Affiliation(s)
- Yang Li
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Rui Han
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Min Chen
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiqin Yang
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Yinan Zhan
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Lei Wang
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Xiliang Luo
- Key Laboratory of Optic-Electric Sensing and Analytical Chemistry for Life Science, MOE, Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
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Cordeiro TAR, de Resende MAC, Moraes SCDS, Franco DL, Pereira AC, Ferreira LF. Electrochemical biosensors for neglected tropical diseases: A review. Talanta 2021; 234:122617. [PMID: 34364426 DOI: 10.1016/j.talanta.2021.122617] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/08/2021] [Accepted: 06/12/2021] [Indexed: 12/26/2022]
Abstract
A group of infectious and parasitic diseases with prevalence in tropical and subtropical regions of the planet, especially in places with difficult access, internal conflicts, poverty, and low visibility from the government and health agencies are classified as neglected tropical diseases. While some well-intentioned isolated groups are making the difference on a global scale, the number of new cases and deaths is still alarming. The development and employment of low-cost, miniaturized, and easy-to-use devices as biosensors could be the key to fast diagnosis in such areas leading to a better treatment to further eradication of such diseases. Therefore, this review contains useful information regarding the development of such devices in the past ten years (2010-2020). Guided by the updated list from the World Health Organization, the work evaluated the new trends in the biosensor field applied to the early detection of neglected tropical diseases, the efficiencies of the devices compared to the traditional techniques, and the applicability on-site for local distribution. So, we focus on Malaria, Chagas, Leishmaniasis, Dengue, Zika, Chikungunya, Schistosomiasis, Leprosy, Human African trypanosomiasis (sleeping sickness), Lymphatic filariasis, and Rabies. Few papers were found concerning such diseases and there is no available commercial device in the market. The works contain information regarding the development of point-of-care devices, but there are only at proof of concepts stage so far. Details of electrode modification and construction of electrochemical biosensors were summarized in Tables. The demand for the eradication of neglected tropical diseases is increasing. The use of biosensors is pivotal for the cause, but appliable devices are scarce. The information present in this review can be useful for further development of biosensors in the hope of helping the world combat these deadly diseases.
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Affiliation(s)
- Taís Aparecida Reis Cordeiro
- Institute of Science and Technology, Laboratory of Electrochemistry and Applied Nanotechnology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | | | - Simone Cristina Dos Santos Moraes
- Group of Electrochemistry Applied to Polymers and Sensors - Multidisciplinary Group of Research, Science and Technology - Laboratory of Electroanalytic Applied to Biotechnology and Food Engineering - Institute of Chemistry, Federal University of Uberlândia, Patos de Minas, Brazil
| | - Diego Leoni Franco
- Group of Electrochemistry Applied to Polymers and Sensors - Multidisciplinary Group of Research, Science and Technology - Laboratory of Electroanalytic Applied to Biotechnology and Food Engineering - Institute of Chemistry, Federal University of Uberlândia, Patos de Minas, Brazil.
| | - Arnaldo César Pereira
- Department of Natural Sciences, Federal University of São João Del-Rei, São João Del-Rei, Brazil.
| | - Lucas Franco Ferreira
- Institute of Science and Technology, Laboratory of Electrochemistry and Applied Nanotechnology, Federal University of the Jequitinhonha and Mucuri Valleys, Diamantina, Brazil.
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Martins BR, Barbosa YO, Andrade CMR, Pereira LQ, Simão GF, de Oliveira CJ, Correia D, Oliveira RTS, da Silva MV, Silva ACA, Dantas NO, Rodrigues V, Muñoz RAA, Alves-Balvedi RP. Development of an Electrochemical Immunosensor for Specific Detection of Visceral Leishmaniasis Using Gold-Modified Screen-Printed Carbon Electrodes. BIOSENSORS-BASEL 2020; 10:bios10080081. [PMID: 32717832 PMCID: PMC7460044 DOI: 10.3390/bios10080081] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/14/2020] [Accepted: 07/17/2020] [Indexed: 12/20/2022]
Abstract
Visceral leishmaniasis is a reemerging neglected tropical disease with limitations for its diagnosis, including low concentration of antibodies in the serum of asymptomatic patients and cross-reactions. In this context, this work proposes an electrochemical immunosensor for the diagnosis of visceral leishmaniasis in a more sensitive way that is capable of avoiding cross-reaction with Chagas disease (CD). Crude Leishmania infantum antigens tested in the enzyme-linked immunosorbent assay (ELISA) were methodologically standardized to best engage to the sensor. The antibodies anti-Trypanosoma cruzi and anti-Leishmania sp. Present in serum from patients with diverse types of CD or leishmaniasis were chosen. A screen-printed carbon electrode modified with gold nanoparticles was the best platform to guarantee effective adsorption of all antigens so that the epitope of specific recognition for leishmaniasis occurred efficiently and without cross-reaction with the evaluated CD. The current peaks reduced linearly after the recognition, and still were able to notice the discrimination between different kinds of diseases (digestive, cardiac, undetermined Chagas/acute and visceral chronic leishmaniasis). Comparative analyses with ELISA were performed with the same groups, and a low specificity (44%) was verified due to cross-reactions (high number of false positives) on ELISA tests, while the proposed immunosensor presented high selectivity and specificity (100%) without any false positives or false negatives for the serum samples from isolated patients with different types of CD and visceral leishmaniasis. Furthermore, the biosensor was stable for 5 days and presented a detection limit of 200 ng mL−1.
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Affiliation(s)
- Beatriz R. Martins
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (B.R.M.); (Y.O.B.); (C.J.d.O.); (R.T.S.O.J.); (V.R.J.)
| | - Yanne O. Barbosa
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (B.R.M.); (Y.O.B.); (C.J.d.O.); (R.T.S.O.J.); (V.R.J.)
| | - Cristhianne M. R. Andrade
- Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (C.M.R.A.); (L.Q.P.); (D.C.); (M.V.d.S.)
| | - Loren Q. Pereira
- Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (C.M.R.A.); (L.Q.P.); (D.C.); (M.V.d.S.)
| | - Guilherme F. Simão
- Institute of Technological and Exact Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil;
| | - Carlo J. de Oliveira
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (B.R.M.); (Y.O.B.); (C.J.d.O.); (R.T.S.O.J.); (V.R.J.)
- Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (C.M.R.A.); (L.Q.P.); (D.C.); (M.V.d.S.)
| | - Dalmo Correia
- Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (C.M.R.A.); (L.Q.P.); (D.C.); (M.V.d.S.)
| | - Robson T. S. Oliveira
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (B.R.M.); (Y.O.B.); (C.J.d.O.); (R.T.S.O.J.); (V.R.J.)
| | - Marcos V. da Silva
- Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (C.M.R.A.); (L.Q.P.); (D.C.); (M.V.d.S.)
| | - Anielle C. A. Silva
- Institute of Physics, Federal University of Alagoas, Maceio-AL 57072-970, Brazil; (A.C.A.S.); (N.O.D.)
| | - Noelio O. Dantas
- Institute of Physics, Federal University of Alagoas, Maceio-AL 57072-970, Brazil; (A.C.A.S.); (N.O.D.)
| | - Virmondes Rodrigues
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (B.R.M.); (Y.O.B.); (C.J.d.O.); (R.T.S.O.J.); (V.R.J.)
- Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (C.M.R.A.); (L.Q.P.); (D.C.); (M.V.d.S.)
| | - Rodrigo A. A. Muñoz
- Institute of Chemistry, Federal University of Uberlândia, Uberlândia-MG 38408-100, Brazil
- Correspondence: (R.A.A.M.); (R.P.A.-B.)
| | - Renata P. Alves-Balvedi
- Institute of Biological and Natural Sciences, Federal University of Triângulo Mineiro, Uberaba-MG 38025-180, Brazil; (B.R.M.); (Y.O.B.); (C.J.d.O.); (R.T.S.O.J.); (V.R.J.)
- Federal University of Triângulo Mineiro, Iturama-MG 38025-180, Brazil
- Correspondence: (R.A.A.M.); (R.P.A.-B.)
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Biosensors to Diagnose Chagas Disease: A Brief Review. SENSORS 2017; 17:s17112629. [PMID: 29140309 PMCID: PMC5712880 DOI: 10.3390/s17112629] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/09/2017] [Accepted: 11/11/2017] [Indexed: 01/01/2023]
Abstract
Chagas disease (CD), which mostly affects those living in deprived areas, has become one of Latin America’s main public health problems. Effective prevention of the disease requires early diagnosis, initiation of therapy, and regular blood monitoring of the infected individual. However, the majority of the Trypanosoma cruzi infections go undiagnosed because of mild symptoms, limited access to medical attention and to a high variability in the sensitivity and specificity of diagnostic tests. Consequently, more affordable and accessible detection technologies capable of providing early diagnosis and T. cruzi load measurements in settings where CD is most prevalent are needed to enable enhanced intervention strategies. This work analyzes the potential contribution of biosensing technologies, reviewing examples that have been tested and contrasted with traditional methods, both serological and parasitological (i.e., molecular detection by PCR), and discusses some emerging biosensing technologies that have been applied for this public health issue. Even if biosensing technologies still require further research efforts to develop portable systems, we arrive at the conclusion that biosensors could improve the accuracy of CD diagnosis and the follow-up of patients’ treatments in terms of the rapidity of results, small sample volume, high integration, ease of use, real-time and low cost detection when compared with current conventional technologies.
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Janissen R, Sahoo PK, Santos CA, da Silva AM, von Zuben AAG, Souto DEP, Costa ADT, Celedon P, Zanchin NIT, Almeida DB, Oliveira DS, Kubota LT, Cesar CL, Souza APD, Cotta MA. InP Nanowire Biosensor with Tailored Biofunctionalization: Ultrasensitive and Highly Selective Disease Biomarker Detection. NANO LETTERS 2017; 17:5938-5949. [PMID: 28895736 DOI: 10.1021/acs.nanolett.7b01803] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Electrically active field-effect transistors (FET) based biosensors are of paramount importance in life science applications, as they offer direct, fast, and highly sensitive label-free detection capabilities of several biomolecules of specific interest. In this work, we report a detailed investigation on surface functionalization and covalent immobilization of biomarkers using biocompatible ethanolamine and poly(ethylene glycol) derivate coatings, as compared to the conventional approaches using silica monoliths, in order to substantially increase both the sensitivity and molecular selectivity of nanowire-based FET biosensor platforms. Quantitative fluorescence, atomic and Kelvin probe force microscopy allowed detailed investigation of the homogeneity and density of immobilized biomarkers on different biofunctionalized surfaces. Significantly enhanced binding specificity, biomarker density, and target biomolecule capture efficiency were thus achieved for DNA as well as for proteins from pathogens. This optimized functionalization methodology was applied to InP nanowires that due to their low surface recombination rates were used as new active transducers for biosensors. The developed devices provide ultrahigh label-free detection sensitivities ∼1 fM for specific DNA sequences, measured via the net change in device electrical resistance. Similar levels of ultrasensitive detection of ∼6 fM were achieved for a Chagas Disease protein marker (IBMP8-1). The developed InP nanowire biosensor provides thus a qualified tool for detection of the chronic infection stage of this disease, leading to improved diagnosis and control of spread. These methodological developments are expected to substantially enhance the chemical robustness, diagnostic reliability, detection sensitivity, and biomarker selectivity for current and future biosensing devices.
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Affiliation(s)
- Richard Janissen
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
- Kavli Institute of Nanoscience, Delft University of Technology , 2629 HZ Delft, The Netherlands
| | - Prasana K Sahoo
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
| | - Clelton A Santos
- Center for Molecular Biology and Genetic Engineering, Biology Institute, University of Campinas , Campinas, São Paulo 13083-875, Brazil
| | - Aldeliane M da Silva
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
| | - Antonio A G von Zuben
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
| | - Denio E P Souto
- Chemistry Institute, University of Campinas , Campinas, São Paulo 13083-970, Brazil
| | - Alexandre D T Costa
- Oswaldo Cruz Foundation, Carlos Chagas Institute , Curitiba, Paraná 81310-020 Brazil
| | - Paola Celedon
- Molecular Biology Institute of Paraná , Curitiba, Paraná 81310-020 Brazil
| | - Nilson I T Zanchin
- Oswaldo Cruz Foundation, Carlos Chagas Institute , Curitiba, Paraná 81310-020 Brazil
| | - Diogo B Almeida
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
| | - Douglas S Oliveira
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
| | - Lauro T Kubota
- Chemistry Institute, University of Campinas , Campinas, São Paulo 13083-970, Brazil
| | - Carlos L Cesar
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
| | - Anete P de Souza
- Center for Molecular Biology and Genetic Engineering, Biology Institute, University of Campinas , Campinas, São Paulo 13083-875, Brazil
| | - Monica A Cotta
- "Gleb Wataghin" Physics Institute, University of Campinas , Campinas, São Paulo 13083-859, Brazil
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Campuzano S, Yáñez-Sedeño P, Pingarrón JM. Electrochemical Biosensing for the Diagnosis of Viral Infections and Tropical Diseases. ChemElectroChem 2017. [DOI: 10.1002/celc.201600805] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Susana Campuzano
- Department Analytical Chemistry; Complutense University of Madrid; Av. Complutense s/n 28040- Madrid Spain
| | - Paloma Yáñez-Sedeño
- Department Analytical Chemistry; Complutense University of Madrid; Av. Complutense s/n 28040- Madrid Spain
| | - José Manuel Pingarrón
- Department Analytical Chemistry; Complutense University of Madrid; Av. Complutense s/n 28040- Madrid Spain
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12
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Malvano F, Albanese D, Crescitelli A, Pilloton R, Esposito E. Impedimetric Label-Free Immunosensor on Disposable Modified Screen-Printed Electrodes for Ochratoxin A. BIOSENSORS-BASEL 2016; 6:bios6030033. [PMID: 27376339 PMCID: PMC5039652 DOI: 10.3390/bios6030033] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 06/07/2016] [Accepted: 06/23/2016] [Indexed: 12/29/2022]
Abstract
An impedimetric label-free immunosensor on disposable screen-printed carbon electrodes (SPCE) for quantitative determination of Ochratoxin A (OTA) has been developed. After modification of the SPCE surface with gold nanoparticles (AuNPs), the anti-OTA was immobilized on the working electrode through a cysteamine layer. After each coating step, the modified surfaces were characterized by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The capacitance was chosen as the best parameter that describes the reproducible change in electrical properties of the electrode surface at different OTA concentrations and it was used to investigate the analytical parameters of the developed immunosensor. Under optimized conditions, the immunosensor showed a linear relationship between 0.3 and 20 ng/mL with a low detection limit of 0.25 ng/mL, making it suitable to control OTA content in many common food products. Lastly, the immunosensor was used to measure OTA in red wine samples and the results were compared with those registered with a competitive ELISA kit. The immunosensor was sensitive to OTA lower than 2 μg/kg, which represents the lower acceptable limit of OTA established by European legislation for common food products.
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Affiliation(s)
- Francesca Malvano
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano SA, Italy.
| | - Donatella Albanese
- Department of Industrial Engineering, University of Salerno, 84084 Fisciano SA, Italy.
| | - Alessio Crescitelli
- Institute for Microelectronics and Microsystems of the National Council of Research (CNR), 80131 Napoli, Italy.
| | - Roberto Pilloton
- Institute of Atmospheric Pollution Research of the National Council of Research (CNR), 00015 Roma, Italy.
| | - Emanuela Esposito
- Institute for Microelectronics and Microsystems of the National Council of Research (CNR), 80131 Napoli, Italy.
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