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Tiwari AK, Mishra A, Pandey G, Gupta MK, Pandey PC. Nanotechnology: A Potential Weapon to Fight against COVID-19. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION : MEASUREMENT AND DESCRIPTION OF PARTICLE PROPERTIES AND BEHAVIOR IN POWDERS AND OTHER DISPERSE SYSTEMS 2022; 39:2100159. [PMID: 35440846 PMCID: PMC9011707 DOI: 10.1002/ppsc.202100159] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/28/2021] [Indexed: 05/13/2023]
Abstract
The COVID-19 infections have posed an unprecedented global health emergency, with nearly three million deaths to date, and have caused substantial economic loss globally. Hence, an urgent exploration of effective and safe diagnostic/therapeutic approaches for minimizing the threat of this highly pathogenic coronavirus infection is needed. As an alternative to conventional diagnosis and antiviral agents, nanomaterials have a great potential to cope with the current or even future health emergency situation with a wide range of applications. Fundamentally, nanomaterials are physically and chemically tunable and can be employed for the next generation nanomaterial-based detection of viral antigens and host antibodies in body fluids as antiviral agents, nanovaccine, suppressant of cytokine storm, nanocarrier for efficient delivery of antiviral drugs at infection site or inside the host cells, and can also be a significant tool for better understanding of the gut microbiome and SARS-CoV-2 interaction. The applicability of nanomaterial-based therapeutic options to cope with the current and possible future pandemic is discussed here.
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Affiliation(s)
- Atul K. Tiwari
- Department of ChemistryIndian Institute of Technology (BHU)VaranasiUttar Pradesh221005India
| | - Anupa Mishra
- Department of MicrobiologyDr. R.M.L. Awadh UniversityAyodhyaUttar Pradesh224001India
- Department of MicrobiologySri Raghukul Mahila Vidya PeethCivil Line GondaUttar Pradesh271001India
| | - Govind Pandey
- Department of PaediatricsKing George Medical UniversityLucknowUttar Pradesh226003India
| | - Munesh K. Gupta
- Department of MicrobiologyInstitute of Medical SciencesBanaras Hindu UniversityVaranasiUttar Pradesh221005India
| | - Prem C. Pandey
- Department of ChemistryIndian Institute of Technology (BHU)VaranasiUttar Pradesh221005India
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Pradhan A, Lahare P, Sinha P, Singh N, Gupta B, Kuca K, Ghosh KK, Krejcar O. Biosensors as Nano-Analytical Tools for COVID-19 Detection. SENSORS (BASEL, SWITZERLAND) 2021; 21:7823. [PMID: 34883826 PMCID: PMC8659776 DOI: 10.3390/s21237823] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Accepted: 11/18/2021] [Indexed: 12/24/2022]
Abstract
Selective, sensitive and affordable techniques to detect disease and underlying health issues have been developed recently. Biosensors as nanoanalytical tools have taken a front seat in this context. Nanotechnology-enabled progress in the health sector has aided in disease and pandemic management at a very early stage efficiently. This report reflects the state-of-the-art of nanobiosensor-based virus detection technology in terms of their detection methods, targets, limits of detection, range, sensitivity, assay time, etc. The article effectively summarizes the challenges with traditional technologies and newly emerging biosensors, including the nanotechnology-based detection kit for COVID-19; optically enhanced technology; and electrochemical, smart and wearable enabled nanobiosensors. The less explored but crucial piezoelectric nanobiosensor and the reverse transcription-loop mediated isothermal amplification (RT-LAMP)-based biosensor are also discussed here. The article could be of significance to researchers and doctors dedicated to developing potent, versatile biosensors for the rapid identification of COVID-19. This kind of report is needed for selecting suitable treatments and to avert epidemics.
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Affiliation(s)
- Anchal Pradhan
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Preeti Lahare
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Priyank Sinha
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Namrata Singh
- Ramrao Adik Institute of Technology, DY Patil University, Nerul, Navi Mumbai 400706, India
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic
| | - Bhanushree Gupta
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
| | - Kamil Kuca
- Department of Chemistry, Faculty of Science, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic
- Biomedical Research Center, University Hospital, Sokolska 581, 50005 Hradec Kralove, Czech Republic
| | - Kallol K. Ghosh
- Center for Basic Sciences, Department of Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India; (A.P.); (P.L.); (P.S.); (K.K.G.)
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492010, India
| | - Ondrej Krejcar
- Center for Basic and Applied Research, Faculty of Informatics and Management, University of Hradec Kralove, Rokitanskeho 62, 50003 Hradec Kralove, Czech Republic;
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Imran S, Ahmadi S, Kerman K. Electrochemical Biosensors for the Detection of SARS-CoV-2 and Other Viruses. MICROMACHINES 2021; 12:174. [PMID: 33578979 PMCID: PMC7916687 DOI: 10.3390/mi12020174] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/04/2021] [Accepted: 02/05/2021] [Indexed: 02/06/2023]
Abstract
The last few decades have been plagued by viral outbreaks that present some of the biggest challenges to public safety. The current coronavirus (COVID-19) disease pandemic has exponentiated these concerns. Increased research on diagnostic tools is currently being implemented in order to assist with rapid identification of the virus, as mass diagnosis and containment is the best way to prevent the outbreak of the virus. Accordingly, there is a growing urgency to establish a point-of-care device for the rapid detection of coronavirus to prevent subsequent spread. This device needs to be sensitive, selective, and exhibit rapid diagnostic capabilities. Electrochemical biosensors have demonstrated these traits and, hence, serve as promising candidates for the detection of viruses. This review summarizes the designs and features of electrochemical biosensors developed for some past and current pandemic or epidemic viruses, including influenza, HIV, Ebola, and Zika. Alongside the design, this review also discusses the detection principles, fabrication techniques, and applications of the biosensors. Finally, research and perspective of biosensors as potential detection tools for the rapid identification of SARS-CoV-2 is discussed.
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Affiliation(s)
- Saim Imran
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4, Canada; (S.I.); (S.A.)
| | - Soha Ahmadi
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4, Canada; (S.I.); (S.A.)
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON M5S 3H6, Canada
| | - Kagan Kerman
- Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4, Canada; (S.I.); (S.A.)
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Demeke Teklemariam A, Samaddar M, Alharbi MG, Al-Hindi RR, Bhunia AK. Biosensor and molecular-based methods for the detection of human coronaviruses: A review. Mol Cell Probes 2020; 54:101662. [PMID: 32911064 PMCID: PMC7477626 DOI: 10.1016/j.mcp.2020.101662] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 09/02/2020] [Accepted: 09/02/2020] [Indexed: 12/28/2022]
Abstract
The ongoing crisis due to the global pandemic caused by a highly contagious coronavirus (Coronavirus disease - 2019; COVID-19) and the lack of either proven effective therapy or a vaccine has made diagnostic a valuable tool in disease tracking and prevention. The complex nature of this newly emerging virus calls for scientists' attention to find the most reliable, highly sensitive, and selective detection techniques for better control or spread of the disease. Reverse transcriptase-polymerase chain reaction (RT-PCR) and serology-based tests are currently being used. However, the speed and accuracy of these tests may not meet the current demand; thus, alternative technology platforms are being developed. Nano biosensor technology platforms have been established as a promising diagnostic tool for rapid and accurate detection of viruses as well as other life-threatening diseases even in resource-limited settings. This review aims to provide a short overview of recent advancements in molecular and biosensor-based diagnosis of viruses, including the human coronaviruses, and highlight the challenges and future perspectives of these detection technologies.
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Affiliation(s)
- Addisu Demeke Teklemariam
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Manalee Samaddar
- Department of Food Science, Purdue University, West Lafayette, 47907, IN, USA; Purdue Institute of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, 47907, IN, USA
| | - Mona G Alharbi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rashad R Al-Hindi
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Arun K Bhunia
- Department of Food Science, Purdue University, West Lafayette, 47907, IN, USA; Department of Comparative Pathobiology, Purdue University, West Lafayette, 47907, IN, USA; Purdue Institute of Inflammation, Immunology and Infectious Disease, Purdue University, West Lafayette, 47907, IN, USA.
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Laghrib F, Saqrane S, El Bouabi Y, Farahi A, Bakasse M, Lahrich S, El Mhammedi MA. Current progress on COVID-19 related to biosensing technologies: New opportunity for detection and monitoring of viruses. Microchem J 2020; 160:105606. [PMID: 33052148 PMCID: PMC7543751 DOI: 10.1016/j.microc.2020.105606] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/15/2020] [Accepted: 10/04/2020] [Indexed: 02/07/2023]
Abstract
COVID-19 infection poses a serious risk to human life by causing acute lung damage. Various techniques used to identify and quantify COVID-19 infection. Major challenges for containing the spread of COVID-19 is the ability to identify asymptomatic cases. Currently available diagnostic methods, biosensing technology developed during COVID-19 infection.
The technologies used for coronavirus testing consist of a pre-existing device developed to examine different pathologies, such as bacterial infections, or cancer biomarkers. However, for the 2019 pandemic, researchers knew that their technology could be modified to detect a low viral load at an early stage. Today, countries around the world are working to control the new coronavirus disease (n-SARS-CoV-2). From this perspective, laboratories, universities, and companies around the world have embarked on a race to develop and produce much-needed test kits. This review has been developed to provide an overview of current trends and strategies in n-SARS-CoV-2 diagnostics based on traditional and new emerging assessment technologies, to continuous innovation. It focuses on recent trends in biosensors to build a fast, reliable, more sensitive, accessible, user-friendly system and easily adaptable technology n-SARS-CoV-2 detection and monitoring. On the whole, we have addressed and identified research evidence supporting the use of biosensors on the premise that screening people for n-SARS-CoV-2 is the best way to contain its spread.
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Affiliation(s)
- F Laghrib
- Sultan Moulay Slimane University, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - S Saqrane
- Sultan Moulay Slimane University, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - Y El Bouabi
- Sultan Moulay Slimane University, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - A Farahi
- Ibn Zohr University, Team of Catalysis and Environment, Faculty of Sciences, BP 8106 Agadir, Morocco
| | - M Bakasse
- Chouaib Doukkali University, Faculty of Sciences, Laboratory of Organic Bioorganic Chemistry and Environment, El Jadida, Morocco
| | - S Lahrich
- Sultan Moulay Slimane University, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
| | - M A El Mhammedi
- Sultan Moulay Slimane University, Laboratory of Chemistry, Modeling and Environmental Sciences, Polydisciplinary Faculty, 25 000 Khouribga, Morocco
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Jimenez Jimenez AM, Moulick A, Bhowmick S, Strmiska V, Gagic M, Horakova Z, Kostrica R, Masarik M, Heger Z, Adam V. One-step detection of human papilloma viral infection using quantum dot-nucleotide interaction specificity. Talanta 2019; 205:120111. [PMID: 31450441 DOI: 10.1016/j.talanta.2019.07.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 06/28/2019] [Accepted: 07/01/2019] [Indexed: 12/12/2022]
Abstract
Due to the close relationship between carcinogenesis and human papillomavirus (HPV), and since they are transmitted via huge number of asymptomatic carriers, the detection of HPV is really needed to reduce the risk of developing cancer. According to the best of our knowledge, our study provides the very first method for one-step detection of viral infection and if it has initiated the subsequent cancer proliferation. The proposed novel nanosystem consists of magnetic glass particles (MGPs), which were attached with DNA probe on their surface to hybridize with target DNAs. The MGP-probe-DNA hybrid was finally conjugated with CdTe/ZnSe core/shell quantum dots (QDs). The proposed detection system is based on a novel mechanism in which the MGPs separate out the target DNAs from different biological samples using external magnetic field for better and clear detection and the QDs give different fluorescent maxima for different target DNAs due to their ability to interact differently with different nucleotides. Firstly, the method was optimized using HPV genes cloned into synthetic plasmids. Then it was applied directly on the samples from normal and cancerous cells. After that, the real hospital samples of head and neck squamous cell carcinoma (HNSCC) with or without the infection of HPV were also analyzed. Our novel nano-system is proved successful in detecting and distinguishing between the patients suffering by HPV infection with or without subsequent cancer having detection limit estimated as 1.0 x 109 (GEq/mL). The proposed methodology is faster and cost-effective, which can be applied at the clinical level to help the doctors to decide the strategy of medication that may save the life of the patients with an early treatment.
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Affiliation(s)
- Ana Maria Jimenez Jimenez
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic
| | - Amitava Moulick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic
| | - Sukanya Bhowmick
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic
| | - Vladislav Strmiska
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic
| | - Milica Gagic
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic
| | - Zuzana Horakova
- Department of Otorhinolaryngology and Head and Neck Surgery, St. Anne's Faculty Hospital, CZ-65691, Brno, Czech Republic
| | - Rom Kostrica
- Department of Otorhinolaryngology and Head and Neck Surgery, St. Anne's Faculty Hospital, CZ-65691, Brno, Czech Republic
| | - Michal Masarik
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00, Brno, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic
| | - Vojtech Adam
- Department of Chemistry and Biochemistry, Mendel University in Brno, Zemedelska 1, CZ-613 00, Brno, Czech Republic; Central European Institute of Technology, Brno University of Technology, Technicka 3058/10, CZ-616 00, Brno, Czech Republic.
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Hassanpour S, Baradaran B, Hejazi M, Hasanzadeh M, Mokhtarzadeh A, de la Guardia M. Recent trends in rapid detection of influenza infections by bio and nanobiosensor. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.11.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Mokhtarzadeh A, Eivazzadeh-Keihan R, Pashazadeh P, Hejazi M, Gharaatifar N, Hasanzadeh M, Baradaran B, de la Guardia M. Nanomaterial-based biosensors for detection of pathogenic virus. Trends Analyt Chem 2017; 97:445-457. [PMID: 32287543 PMCID: PMC7126209 DOI: 10.1016/j.trac.2017.10.005] [Citation(s) in RCA: 143] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Viruses are real menace to human safety that cause devastating viral disease. The high prevalence of these diseases is due to improper detecting tools. Therefore, there is a remarkable demand to identify viruses in a fast, selective and accurate way. Several biosensors have been designed and commercialized for detection of pathogenic viruses. However, they present many challenges. Nanotechnology overcomes these challenges and performs direct detection of molecular targets in real time. In this overview, studies concerning nanotechnology-based biosensors for pathogenic virus detection have been summarized, paying special attention to biosensors based on graphene oxide, silica, carbon nanotubes, gold, silver, zinc oxide and magnetic nanoparticles, which could pave the way to detect viral diseases and provide healthy life for infected patients.
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Affiliation(s)
- Ahad Mokhtarzadeh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.,Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Reza Eivazzadeh-Keihan
- Young Researchers and Elite Club, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Paria Pashazadeh
- Department of Biochemistry and Biophysics, Metabolic Disorders Research Center, Gorgan Faculty of Medicine, Iran
| | | | - Nasrin Gharaatifar
- Department of Biotechnology, Higher Education Institute of Rab-Rashid, Tabriz, Iran
| | - Mohammad Hasanzadeh
- Pharmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz 51664, Iran
| | - Behzad Baradaran
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Miguel de la Guardia
- Department of Analytical Chemistry, University of Valencia, Dr. Moliner 50, 46100 Burjassot, Valencia, Spain
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Subramaniam AB, Gonidec M, Shapiro ND, Kresse KM, Whitesides GM. Metal-amplified Density Assays, (MADAs), including a Density-Linked Immunosorbent Assay (DeLISA). LAB ON A CHIP 2015; 15:1009-1022. [PMID: 25474561 DOI: 10.1039/c4lc01161a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper reports the development of Metal-amplified Density Assays, or MADAs - a method of conducting quantitative or multiplexed assays, including immunoassays, by using Magnetic Levitation (MagLev) to measure metal-amplified changes in the density of beads labeled with biomolecules. The binding of target analytes (i.e. proteins, antibodies, antigens) to complementary ligands immobilized on the surface of the beads, followed by a chemical amplification of the binding in a form that results in a change in the density of the beads (achieved by using gold nanoparticle-labeled biomolecules, and electroless deposition of gold or silver), translates analyte binding events into changes in density measureable using MagLev. A minimal model based on diffusion-limited growth of hemispherical nuclei on a surface reproduces the dynamics of the assay. A MADA - when performed with antigens and antibodies - is called a Density-Linked Immunosorbent Assay, or DeLISA. Two immunoassays provided a proof of principle: a competitive quantification of the concentration of neomycin in whole milk, and a multiplexed detection of antibodies against Hepatitis C virus NS3 protein and syphilis T. pallidum p47 protein in serum. MADAs, including DeLISAs, require, besides the requisite biomolecules and amplification reagents, minimal specialized equipment (two permanent magnets, a ruler or a capillary with calibrated length markings) and no electrical power to obtain a quantitative readout of analyte concentration. With further development, the method may be useful in resource-limited or point-of-care settings.
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Affiliation(s)
- Anand Bala Subramaniam
- Department of Chemistry & Chemical Biology, Harvard University, 230 Mallinckrodt Bldg., 12 Oxford St., Cambridge, MA 02138, USA.
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Ronkainen NJ, Okon SL. Nanomaterial-Based Electrochemical Immunosensors for Clinically Significant Biomarkers. MATERIALS (BASEL, SWITZERLAND) 2014; 7:4669-4709. [PMID: 28788700 PMCID: PMC5455914 DOI: 10.3390/ma7064669] [Citation(s) in RCA: 86] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/31/2014] [Revised: 05/26/2014] [Accepted: 06/05/2014] [Indexed: 12/26/2022]
Abstract
Nanotechnology has played a crucial role in the development of biosensors over the past decade. The development, testing, optimization, and validation of new biosensors has become a highly interdisciplinary effort involving experts in chemistry, biology, physics, engineering, and medicine. The sensitivity, the specificity and the reproducibility of biosensors have improved tremendously as a result of incorporating nanomaterials in their design. In general, nanomaterials-based electrochemical immunosensors amplify the sensitivity by facilitating greater loading of the larger sensing surface with biorecognition molecules as well as improving the electrochemical properties of the transducer. The most common types of nanomaterials and their properties will be described. In addition, the utilization of nanomaterials in immunosensors for biomarker detection will be discussed since these biosensors have enormous potential for a myriad of clinical uses. Electrochemical immunosensors provide a specific and simple analytical alternative as evidenced by their brief analysis times, inexpensive instrumentation, lower assay cost as well as good portability and amenability to miniaturization. The role nanomaterials play in biosensors, their ability to improve detection capabilities in low concentration analytes yielding clinically useful data and their impact on other biosensor performance properties will be discussed. Finally, the most common types of electroanalytical detection methods will be briefly touched upon.
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Affiliation(s)
- Niina J Ronkainen
- Department of Chemistry and Biochemistry, Benedictine University, 5700 College Road, Lisle, IL 60532, USA.
| | - Stanley L Okon
- Department of Psychiatry, Advocate Lutheran General Hospital, 8South, 1775 West Dempster Street, Park Ridge, IL 60068, USA.
- Formerly of the Department of Pathology, University of Illinois at Chicago, MC 847, 840 S. Wood St., Suite 130 CSN, Chicago, IL 60612, USA.
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