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Chauke SH, Nzuza S, Ombinda-Lemboumba S, Abrahamse H, Dube FS, Mthunzi-Kufa P. Advances in the detection and diagnosis of tuberculosis using optical-based devices. Photodiagnosis Photodyn Ther 2024; 45:103906. [PMID: 38042235 DOI: 10.1016/j.pdpdt.2023.103906] [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: 10/12/2023] [Revised: 11/08/2023] [Accepted: 11/21/2023] [Indexed: 12/04/2023]
Abstract
Tuberculosis (TB), a bacterial infection caused by Mycobacterium tuberculosis, is highly contagious and can lead to severe health complications if left untreated. This review article discusses the importance of early detection and treatment and its global incidence and epidemiology, emphasizing its impact on vulnerable populations and its role as a major cause of death worldwide. Furthermore, it highlights the challenges faced with diagnosing TB. To overcome these challenges, point-of-care devices have emerged as promising tools for rapid and accurate TB detection. These include devices such as nucleic acid amplification tests (NAATs), lateral flow assays (LFAs), and microfluidic-based assays, which offer advantages such as rapid results, portability, and the ability to detect drug-resistant strains. Optical-based devices, such as photonic micro-ring sensors, silicon platform-based sensors, plasmonic-based platforms, microfluidics, and smartphone imaging, are some of the highlighted optical-based devices with the potential to detect TB. These devices can detect TB in sputum samples with high sensitivity and specificity. Optical-based diagnostic devices have the potential to offer the advantages of detecting low concentrations of target molecules and being adaptable to detect multiple targets simultaneously. Using these devices in a clinical setting makes them suitable for their application in improving access to diagnostic testing that enables earlier detection and treatment of TB. Furthermore, these devices would improve TB's global health issue, which requires comprehensive research, prevention, and treatment efforts.
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Affiliation(s)
- Sipho H Chauke
- Biophotonics, Photonic Centre, Manufacturing Cluster, Council for Scientific and Industrial Research (CSIR), Pretoria 0001, South Africa; Molecular and Cell Biology Department, University of Cape Town, Cape Town 7701, South Africa.
| | - Sinegugu Nzuza
- Biophotonics, Photonic Centre, Manufacturing Cluster, Council for Scientific and Industrial Research (CSIR), Pretoria 0001, South Africa; Laser Research Centre Department, University of Johannesburg, Johannesburg 2028, South Africa
| | - Saturnin Ombinda-Lemboumba
- Biophotonics, Photonic Centre, Manufacturing Cluster, Council for Scientific and Industrial Research (CSIR), Pretoria 0001, South Africa
| | - Heidi Abrahamse
- Laser Research Centre Department, University of Johannesburg, Johannesburg 2028, South Africa
| | - Felix S Dube
- Molecular and Cell Biology Department, University of Cape Town, Cape Town 7701, South Africa
| | - Patience Mthunzi-Kufa
- Biophotonics, Photonic Centre, Manufacturing Cluster, Council for Scientific and Industrial Research (CSIR), Pretoria 0001, South Africa; Molecular and Cell Biology Department, University of Cape Town, Cape Town 7701, South Africa; School of Interdisciplinary Research and Graduate Studies (UNESCO), University of South Africa, GroenKloof Campus, Pretoria, South Africa
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2
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Bakhshpour-Yucel M, Gür SD, Seymour E, Aslan M, Lortlar Ünlü N, Ünlü MS. Highly-Sensitive, Label-Free Detection of Microorganisms and Viruses via Interferometric Reflectance Imaging Sensor. MICROMACHINES 2023; 14:281. [PMID: 36837980 PMCID: PMC9960798 DOI: 10.3390/mi14020281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 01/08/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
Pathogenic microorganisms and viruses can easily transfer from one host to another and cause disease in humans. The determination of these pathogens in a time- and cost-effective way is an extreme challenge for researchers. Rapid and label-free detection of pathogenic microorganisms and viruses is critical in ensuring rapid and appropriate treatment. Sensor technologies have shown considerable advancements in viral diagnostics, demonstrating their great potential for being fast and sensitive detection platforms. In this review, we present a summary of the use of an interferometric reflectance imaging sensor (IRIS) for the detection of microorganisms. We highlight low magnification modality of IRIS as an ensemble biomolecular mass measurement technique and high magnification modality for the digital detection of individual nanoparticles and viruses. We discuss the two different modalities of IRIS and their applications in the sensitive detection of microorganisms and viruses.
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Affiliation(s)
- Monireh Bakhshpour-Yucel
- Department of Electrical Engineering, Photonics Center, Boston University, Boston, MA 02215, USA
- Department of Chemistry, Faculty of Science and Art, Bursa Uludag University, Bursa 16059, Turkey
| | - Sinem Diken Gür
- Department of Biotechnology, Hacettepe University, Ankara 06800, Turkey
| | - Elif Seymour
- Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, ON M5G 1X5, Canada
| | - Mete Aslan
- Department of Electrical Engineering, Photonics Center, Boston University, Boston, MA 02215, USA
| | - Nese Lortlar Ünlü
- Department of Biomedical Engineering, Photonics Center, Boston University, Boston, MA 02215, USA
| | - M. Selim Ünlü
- Department of Electrical Engineering, Photonics Center, Boston University, Boston, MA 02215, USA
- Department of Biomedical Engineering, Photonics Center, Boston University, Boston, MA 02215, USA
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3
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Das CM, Kong KV, Yong KT. Diagnostic plasmonic sensors: opportunities and challenges. Chem Commun (Camb) 2022; 58:9573-9585. [PMID: 35975603 DOI: 10.1039/d2cc03431j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The medical fraternity is currently burgeoned and stressed with a huge rush of patients who have inflammatory conditions, metabolite diseases, and cardiovascular diseases. In these circumstances, advanced sensing technologies could have a huge impact on the quality of life of patients. Given plasmonic resonance effects significantly improve the ability to rapidly and accurately detect biological markers, plasmonic technology is harnessed to develop a fast and accurate diagnosis that can provide timely intervention with the diseases and can also aid the recovery process by complementing the therapy stage. In this short review, we provide an overlook of how the field of plasmonic sensing has revolutionized the field of medical diagnostics. This article reviews the fundamentals and development of plasmonics. In addition, we highlight the sensitivity of various SPR and LSPR sensors. The chemistry for functionalizing plasmonic sensors is also discussed. This review also outlines some general suggestions for future directions that we feel might be useful to advance our understanding of the universe or speed up the development of plasmonic sensors in the future.
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Affiliation(s)
- Chandreyee Manas Das
- School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore.,CINTRA CNRS/NTU/THALES, UMI 3288, Research Techno Plaza, 50 Nanyang Drive, Border X Block, 637553, Singapore
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei City, Taiwan
| | - Ken-Tye Yong
- School of Biomedical Engineering, The University of Sydney, Sydney, New South Wales 2006, Australia. .,The University of Sydney Nano Institute, The University of Sydney, Sydney, New South Wales 2006, Australia.,The Biophotonics and MechanoBioengineering Lab, The University of Sydney, Sydney, New South Wales 2006, Australia
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4
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Surface Plasmon Resonance (SPR) Spectroscopy and Photonic Integrated Circuit (PIC) Biosensors: A Comparative Review. SENSORS 2022; 22:s22082901. [PMID: 35458884 PMCID: PMC9028357 DOI: 10.3390/s22082901] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/30/2022] [Accepted: 04/07/2022] [Indexed: 12/17/2022]
Abstract
Label-free direct-optical biosensors such as surface-plasmon resonance (SPR) spectroscopy has become a gold standard in biochemical analytics in centralized laboratories. Biosensors based on photonic integrated circuits (PIC) are based on the same physical sensing mechanism: evanescent field sensing. PIC-based biosensors can play an important role in healthcare, especially for point-of-care diagnostics, if challenges for a transfer from research laboratory to industrial applications can be overcome. Research is at this threshold, which presents a great opportunity for innovative on-site analyses in the health and environmental sectors. A deeper understanding of the innovative PIC technology is possible by comparing it with the well-established SPR spectroscopy. In this work, we shortly introduce both technologies and reveal similarities and differences. Further, we review some latest advances and compare both technologies in terms of surface functionalization and sensor performance.
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5
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Péter B, Farkas E, Kurunczi S, Szittner Z, Bősze S, Ramsden JJ, Szekacs I, Horvath R. Review of Label-Free Monitoring of Bacteria: From Challenging Practical Applications to Basic Research Perspectives. BIOSENSORS 2022; 12:bios12040188. [PMID: 35448248 PMCID: PMC9026780 DOI: 10.3390/bios12040188] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 03/07/2022] [Accepted: 03/11/2022] [Indexed: 05/10/2023]
Abstract
Novel biosensors already provide a fast way to detect the adhesion of whole bacteria (or parts of them), biofilm formation, and the effect of antibiotics. Moreover, the detection sensitivities of recent sensor technologies are large enough to investigate molecular-scale biological processes. Usually, these measurements can be performed in real time without using labeling. Despite these excellent capabilities summarized in the present work, the application of novel, label-free sensor technologies in basic biological research is still rare; the literature is dominated by heuristic work, mostly monitoring the presence and amount of a given analyte. The aims of this review are (i) to give an overview of the present status of label-free biosensors in bacteria monitoring, and (ii) to summarize potential novel directions with biological relevancies to initiate future development. Optical, mechanical, and electrical sensing technologies are all discussed with their detailed capabilities in bacteria monitoring. In order to review potential future applications of the outlined techniques in bacteria research, we summarize the most important kinetic processes relevant to the adhesion and survival of bacterial cells. These processes are potential targets of kinetic investigations employing modern label-free technologies in order to reveal new fundamental aspects. Resistance to antibacterials and to other antimicrobial agents, the most important biological mechanisms in bacterial adhesion and strategies to control adhesion, as well as bacteria-mammalian host cell interactions are all discussed with key relevancies to the future development and applications of biosensors.
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Affiliation(s)
- Beatrix Péter
- Nanobiosensorics Laboratory, Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (S.K.); (Z.S.); (I.S.)
- Correspondence: (B.P.); (R.H.)
| | - Eniko Farkas
- Nanobiosensorics Laboratory, Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (S.K.); (Z.S.); (I.S.)
| | - Sandor Kurunczi
- Nanobiosensorics Laboratory, Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (S.K.); (Z.S.); (I.S.)
| | - Zoltán Szittner
- Nanobiosensorics Laboratory, Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (S.K.); (Z.S.); (I.S.)
| | - Szilvia Bősze
- MTA-ELTE Research Group of Peptide Chemistry, Eötvös Loránd Research Network (ELKH), Institute of Chemistry, Eötvös Loránd University, 1120 Budapest, Hungary;
- National Public Health Center, 1097 Budapest, Hungary
| | - Jeremy J. Ramsden
- Clore Laboratory, Department of Biomedical Research, University of Buckingham, Buckingham MK18 1AD, UK;
| | - Inna Szekacs
- Nanobiosensorics Laboratory, Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (S.K.); (Z.S.); (I.S.)
| | - Robert Horvath
- Nanobiosensorics Laboratory, Centre for Energy Research, Institute of Technical Physics and Materials Science, 1121 Budapest, Hungary; (E.F.); (S.K.); (Z.S.); (I.S.)
- Correspondence: (B.P.); (R.H.)
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6
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Mi F, Hu C, Wang Y, Wang L, Peng F, Geng P, Guan M. Recent advancements in microfluidic chip biosensor detection of foodborne pathogenic bacteria: a review. Anal Bioanal Chem 2022; 414:2883-2902. [PMID: 35064302 PMCID: PMC8782221 DOI: 10.1007/s00216-021-03872-w] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 12/16/2021] [Accepted: 12/28/2021] [Indexed: 12/19/2022]
Abstract
Foodborne diseases caused by pathogenic bacteria pose a serious threat to human health. Early and rapid detection of foodborne pathogens is an urgent task for preventing disease outbreaks. Microfluidic devices are simple, automatic, and portable miniaturized systems. Compared with traditional techniques, microfluidic devices have attracted much attention because of their high efficiency and convenience in the concentration and detection of foodborne pathogens. This article firstly reviews the bio-recognition elements integrated on microfluidic chips in recent years and the progress of microfluidic chip development for pathogen pretreatment. Furthermore, the research progress of microfluidic technology based on optical and electrochemical sensors for the detection of foodborne pathogenic bacteria is summarized and discussed. Finally, the future prospects for the application and challenges of microfluidic chips based on biosensors are presented.
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Affiliation(s)
- Fang Mi
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830017, China
- Department of Cuisine and Tourism, Xinjiang Bingtuan Xingxin Vocational and Technical College, Urumqi, 830074, China
| | - Cunming Hu
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830017, China
| | - Ying Wang
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830017, China
| | - Li Wang
- Department of Cuisine and Tourism, Xinjiang Bingtuan Xingxin Vocational and Technical College, Urumqi, 830074, China
| | - Fei Peng
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830017, China
| | - PengFei Geng
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830017, China
| | - Ming Guan
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830017, China.
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7
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Fu X, Sun J, Liang R, Guo H, Wang L, Sun X. Application progress of microfluidics-integrated biosensing platforms in the detection of foodborne pathogens. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.07.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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8
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Zhou C, Pan Y, Ge S, Coulon F, Yang Z. Rapid methods for antimicrobial resistance diagnosis in contaminated soils for effective remediation strategy. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116203] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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9
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Rentschler S, Kaiser L, Deigner HP. Emerging Options for the Diagnosis of Bacterial Infections and the Characterization of Antimicrobial Resistance. Int J Mol Sci 2021; 22:E456. [PMID: 33466437 PMCID: PMC7796476 DOI: 10.3390/ijms22010456] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 12/21/2020] [Accepted: 12/29/2020] [Indexed: 02/06/2023] Open
Abstract
Precise and rapid identification and characterization of pathogens and antimicrobial resistance patterns are critical for the adequate treatment of infections, which represent an increasing problem in intensive care medicine. The current situation remains far from satisfactory in terms of turnaround times and overall efficacy. Application of an ineffective antimicrobial agent or the unnecessary use of broad-spectrum antibiotics worsens the patient prognosis and further accelerates the generation of resistant mutants. Here, we provide an overview that includes an evaluation and comparison of existing tools used to diagnose bacterial infections, together with a consideration of the underlying molecular principles and technologies. Special emphasis is placed on emerging developments that may lead to significant improvements in point of care detection and diagnosis of multi-resistant pathogens, and new directions that may be used to guide antibiotic therapy.
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Affiliation(s)
- Simone Rentschler
- Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 VS-Schwenningen, Germany; (S.R.); (L.K.)
- Department of Pharmaceutical and Medicinal Chemistry, Institute of Pharmaceutical Sciences, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Lars Kaiser
- Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 VS-Schwenningen, Germany; (S.R.); (L.K.)
- Institute of Pharmaceutical Sciences, University of Freiburg, Albertstraße 25, 79104 Freiburg i. Br., Germany
| | - Hans-Peter Deigner
- Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 VS-Schwenningen, Germany; (S.R.); (L.K.)
- EXIM Department, Fraunhofer Institute IZI (Leipzig), Schillingallee 68, 18057 Rostock, Germany
- Faculty of Science, Tuebingen University, Auf der Morgenstelle 8, 72076 Tübingen, Germany
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10
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Affiliation(s)
- Mohamed Sharafeldin
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, U.K
| | - Jason J. Davis
- Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QZ, U.K
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11
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Sidhu RK, Cavallaro ND, Pola CC, Danyluk MD, McLamore ES, Gomes CL. Planar Interdigitated Aptasensor for Flow-Through Detection of Listeria spp. in Hydroponic Lettuce Growth Media. SENSORS (BASEL, SWITZERLAND) 2020; 20:E5773. [PMID: 33053744 PMCID: PMC7600482 DOI: 10.3390/s20205773] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/09/2020] [Accepted: 10/10/2020] [Indexed: 02/07/2023]
Abstract
Irrigation water is a primary source of fresh produce contamination by bacteria during the preharvest, particularly in hydroponic systems where the control of pests and pathogens is a major challenge. In this work, we demonstrate the development of a Listeria biosensor using platinum interdigitated microelectrodes (Pt-IME). The sensor is incorporated into a particle/sediment trap for the real-time analysis of irrigation water in a hydroponic lettuce system. We demonstrate the application of this system using a smartphone-based potentiostat for rapid on-site analysis of water quality. A detailed characterization of the electrochemical behavior was conducted in the presence/absence of DNA and Listeria spp., which was followed by calibration in various solutions with and without flow. In flow conditions (100 mL samples), the aptasensor had a sensitivity of 3.37 ± 0.21 k log-CFU-1 mL, and the LOD was 48 ± 12 CFU mL-1 with a linear range of 102 to 104 CFU mL-1. In stagnant solution with no flow, the aptasensor performance was significantly improved in buffer, vegetable broth, and hydroponic media. Sensor hysteresis ranged from 2 to 16% after rinsing in a strong basic solution (direct reuse) and was insignificant after removing the aptamer via washing in Piranha solution (reuse after adsorption with fresh aptamer). This is the first demonstration of an aptasensor used to monitor microbial water quality for hydroponic lettuce in real time using a smartphone-based acquisition system for volumes that conform with the regulatory standards. The aptasensor demonstrated a recovery of 90% and may be reused a limited number of times with minor washing steps.
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Affiliation(s)
- Raminderdeep K. Sidhu
- Department of Biological & Agricultural Engineering, Texas A&M University, College Station, TX 77843, USA;
| | - Nicholas D. Cavallaro
- Agricultural & Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA;
| | - Cicero C. Pola
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA;
| | - Michelle D. Danyluk
- Food Science and Human Nutrition, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA;
| | - Eric S. McLamore
- Agricultural & Biological Engineering, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, FL 32611, USA;
| | - Carmen L. Gomes
- Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA;
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12
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Vindas K, Buhot A, Livache T, Garrigue P, Sojic N, Leroy L, Engel E. Enhancing the sensitivity of plasmonic optical fiber sensors by analyzing the distribution of the optical modes intensity. OPTICS EXPRESS 2020; 28:28740-28749. [PMID: 33114785 DOI: 10.1364/oe.399856] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
Improving the sensitivity of plasmonic optical fiber sensors constitutes a major challenge as it could significantly enhance their sensing capabilities for the label-free detection of biomolecular interactions or chemical compounds. While many efforts focus on developing more sensitive structures, we present here how the sensitivity of a sensor can be significantly enhanced by improving the light analysis. Contrary to the common approach where the global intensity of the light coming from the core is averaged, our approach is based on the full analysis of the retro-reflected intensity distribution that evolves with the refractive index of the medium being analyzed. Thanks to this original and simple approach, the refractive index sensitivity of a plasmonic optical fiber sensor used in reflection mode was enhanced by a factor of 25 compared to the standard method. The reported approach opens exciting perspectives for improving the remote detection as well as for developing new sensing strategies.
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13
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Gauglitz G. Critical assessment of relevant methods in the field of biosensors with direct optical detection based on fibers and waveguides using plasmonic, resonance, and interference effects. Anal Bioanal Chem 2020; 412:3317-3349. [PMID: 32313998 PMCID: PMC7214504 DOI: 10.1007/s00216-020-02581-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/28/2020] [Accepted: 03/04/2020] [Indexed: 12/16/2022]
Abstract
Direct optical detection has proven to be a highly interesting tool in biomolecular interaction analysis to be used in drug discovery, ligand/receptor interactions, environmental analysis, clinical diagnostics, screening of large data volumes in immunology, cancer therapy, or personalized medicine. In this review, the fundamental optical principles and applications are reviewed. Devices are based on concepts such as refractometry, evanescent field, waveguides modes, reflectometry, resonance and/or interference. They are realized in ring resonators; prism couplers; surface plasmon resonance; resonant mirror; Bragg grating; grating couplers; photonic crystals, Mach-Zehnder, Young, Hartman interferometers; backscattering; ellipsometry; or reflectance interferometry. The physical theories of various optical principles have already been reviewed in detail elsewhere and are therefore only cited. This review provides an overall survey on the application of these methods in direct optical biosensing. The "historical" development of the main principles is given to understand the various, and sometimes only slightly modified variations published as "new" methods or the use of a new acronym and commercialization by different companies. Improvement of optics is only one way to increase the quality of biosensors. Additional essential aspects are the surface modification of transducers, immobilization strategies, selection of recognition elements, the influence of non-specific interaction, selectivity, and sensitivity. Furthermore, papers use for reporting minimal amounts of detectable analyte terms such as value of mass, moles, grams, or mol/L which are difficult to compare. Both these essential aspects (i.e., biochemistry and the presentation of LOD values) can be discussed only in brief (but references are provided) in order to prevent the paper from becoming too long. The review will concentrate on a comparison of the optical methods, their application, and the resulting bioanalytical quality.
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Affiliation(s)
- Günter Gauglitz
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
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14
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Puiu M, Bala C. Microfluidics-integrated biosensing platforms as emergency tools for on-site field detection of foodborne pathogens. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.115831] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Özgür E, Topçu AA, Yılmaz E, Denizli A. Surface plasmon resonance based biomimetic sensor for urinary tract infections. Talanta 2020; 212:120778. [PMID: 32113541 DOI: 10.1016/j.talanta.2020.120778] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 02/08/2023]
Abstract
Tailor-made Escherichia coli (E. coli) receptors were created with microcontact imprinted technique and binding events of E. coli were carried out by a surface plasmon resonance (SPR) sensor in aqueous solution and in urine mimic in real time and label-free. N-methacryloyl-(l)-histidine methyl ester (MAH) was selected as a functional monomer to design tailor-made E. coli receptors on the polymeric film and during the formation of the polymeric film on a chip surface, Ag nanoparticles (AgNPs) were entrapped into the polymer mixture in order to lower the detection limit of biomimetic SPR based sensor. The polymeric film was characterized with atomic force microscopy (AFM), scanning electron microscopy (SEM), ellipsometer and contact angle measurements. Limit of detection (LOD) was found 0.57 CFU/mL and feasibility of the biomimetic sensor was investigated in urine mimic.
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Affiliation(s)
- Erdoğan Özgür
- Advanced Technologies Application and Research Center, Hacettepe University, Ankara, Turkey
| | | | - Erkut Yılmaz
- Department of Molecular Biology and Biotechnology, Aksaray University, Aksaray, Turkey
| | - Adil Denizli
- Department of Chemistry, Hacettepe University, Ankara, Turkey.
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16
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Ucak Ozkaya G, Durak MZ, Akyar I, Karatuna O. Antimicrobial Susceptibility Test for the Determination of Resistant and Susceptible S. aureus and Enterococcus spp. Using a Multi-Channel Surface Plasmon Resonance Device. Diagnostics (Basel) 2019; 9:E191. [PMID: 31731591 PMCID: PMC6963824 DOI: 10.3390/diagnostics9040191] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/06/2019] [Accepted: 11/12/2019] [Indexed: 11/17/2022] Open
Abstract
The objective of this study was to investigate the development of a surface plasmon resonance (SPR) sensor platform equipped with multiple channels for the simultaneous determination of methicillin-resistant S. aureus (MRSA), methicillin-susceptible S. aureus (MSSA) and vancomycin-resistant Enterococcus (VRE), and vancomycin-susceptible Enterococcus (VSE). Drug resistance of S. aureus strains against cefoxitin and Enterococcus strains against vancomycin were investigated both using the minimum inhibitory concentration method (MIC) assay and the SPR system equipped with single and multiple channels. The MIC values of MRSA and MSSA ranged from 32 µg/mL to >128 µg/mL and from 1 µg/mL to 4 µg/mL, respectively. The MIC values of VRE and VSE were between 64 to >128 µg/mL and 2-4 µg/mL, respectively. With the multiple-channel system, the angle shifts of MRSA, MSSA, VRE and VSE were found to be -0.030° and -0.260°, -0.010° and -0.090° respectively. The antibiotic-resistant and susceptible strains were distinguished within 3 h for S. aureus strains and within 6 h for Enterococcus strains.
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Affiliation(s)
- Gulsum Ucak Ozkaya
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey
- Department of Food Engineering, Faculty of Engineering and Architecture, Bitlis Eren University, Bitlis 13000, Turkey
| | - Muhammed Zeki Durak
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, Istanbul 34210, Turkey
| | - Isin Akyar
- Department of Medical Microbiology, School of Medicine, Acibadem University, Istanbul 34752, Turkey; (I.A.); (O.K.)
| | - Onur Karatuna
- Department of Medical Microbiology, School of Medicine, Acibadem University, Istanbul 34752, Turkey; (I.A.); (O.K.)
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