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Ayaz RMA, Koucheh AB, Sendur K. Broadband-Tunable Vanadium Dioxide (VO 2)-Based Linear Optical Cavity Sensor. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:328. [PMID: 38392701 PMCID: PMC10892060 DOI: 10.3390/nano14040328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/13/2024] [Accepted: 01/15/2024] [Indexed: 02/24/2024]
Abstract
Sensors fabricated by using a silicon-on-insulator (SOI) platform provide promising solutions to issues such as size, power consumption, wavelength-specific nature of end reflectors and difficulty to detect ternary mixture. To address these limitations, we proposed and investigated a broadband-thermally tunable vanadium dioxide (VO2)-based linear optical cavity sensor model using a finite element method. The proposed structure consists of a silicon wire waveguide on a silicon-on-insulator (SOI) platform terminated with phase-change vanadium oxide (VO2) on each side to provide light confinement. A smooth transmission modulation range of 0.8 (VO2 in the insulator state) and 0.03 (VO2 in the conductive phase state) in the 125 to 230 THz spectral region was obtained due to the of Fabry-Pérot (FP) effect. For the 3.84 μm cavity length, the presented sensor resulted in a sensitivity of 20.2 THz/RIU or 179.56 nm/RIU, which is approximately two orders of magnitude higher than its counterparts in the literature. The sensitivity of the 2D model showed direct relation with the length of the optical cavity. Moreover, the change in the resonating mode line width Δν of approximately 6.94 THz/RIU or 59.96 nm/RIU was also observed when the sensor was subjected to the change of the imaginary part k of complex refractive index (RI). This property of the sensor equips it for the sensing of aternary mixture without using any chemical surface modification. The proposed sensor haspotential applications in the areas of chemical industries, environmental monitoring and biomedical sensing.
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Affiliation(s)
- Rana M. Armaghan Ayaz
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Istanbul, Turkey; (R.M.A.A.); (A.B.K.)
- Institute of Mechanical Intelligence, Scuola Superiore Sant’Anna, 56124 Pisa, Italy
| | - Amin Balazadeh Koucheh
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Istanbul, Turkey; (R.M.A.A.); (A.B.K.)
| | - Kursat Sendur
- Faculty of Engineering and Natural Sciences, Sabanci University, 34956 Istanbul, Turkey; (R.M.A.A.); (A.B.K.)
- Center of Excellence for Functional Surfaces and Interfaces, Sabanci University, 34956 Istanbul, Turkey
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2
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Paul AA, Aladese AD, Marks RS. Additive Manufacturing Applications in Biosensors Technologies. BIOSENSORS 2024; 14:60. [PMID: 38391979 PMCID: PMC10887193 DOI: 10.3390/bios14020060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 01/18/2024] [Accepted: 01/20/2024] [Indexed: 02/24/2024]
Abstract
Three-dimensional (3D) printing technology, also known as additive manufacturing (AM), has emerged as an attractive state-of-the-art tool for precisely fabricating functional materials with complex geometries, championing several advancements in tissue engineering, regenerative medicine, and therapeutics. However, this technology has an untapped potential for biotechnological applications, such as sensor and biosensor development. By exploring these avenues, the scope of 3D printing technology can be expanded and pave the way for groundbreaking innovations in the biotechnology field. Indeed, new printing materials and printers would offer new possibilities for seamlessly incorporating biological functionalities within the growing 3D scaffolds. Herein, we review the additive manufacturing applications in biosensor technologies with a particular emphasis on extrusion-based 3D printing modalities. We highlight the application of natural, synthetic, and composite biomaterials as 3D-printed soft hydrogels. Emphasis is placed on the approach by which the sensing molecules are introduced during the fabrication process. Finally, future perspectives are provided.
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Affiliation(s)
- Abraham Abbey Paul
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel;
| | - Adedamola D. Aladese
- Department of Physics and Material Science, University of Memphis, Memphis, TN 38152, USA;
| | - Robert S. Marks
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel;
- Ilse Katz Centre for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Be’er Sheva 84105, Israel
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3
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Wu B, Ga L, Wang Y, Ai J. Recent Advances in the Application of Bionanosensors for the Analysis of Heavy Metals in Aquatic Environments. Molecules 2023; 29:34. [PMID: 38202619 PMCID: PMC10780001 DOI: 10.3390/molecules29010034] [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: 10/27/2023] [Revised: 11/21/2023] [Accepted: 11/29/2023] [Indexed: 01/12/2024] Open
Abstract
Heavy-metal ions (HMIs) as a pollutant, if not properly processed, used, and disposed of, will not only have an influence on the ecological environment but also pose significant health hazards to humans, making them a primary factor that endangers human health and harms the environment. Heavy metals come from a variety of sources, the most common of which are agriculture, industry, and sewerage. As a result, there is an urgent demand for portable, low-cost, and effective analytical tools. Bionanosensors have been rapidly developed in recent years due to their advantages of speed, mobility, and high sensitivity. To accomplish effective HMI pollution control, it is important not only to precisely pinpoint the source and content of pollution but also to perform real-time and speedy in situ detection of its composition. This study summarizes heavy-metal-ion (HMI) sensing research advances over the last five years (2019-2023), describing and analyzing major examples of electrochemical and optical bionanosensors for Hg2+, Cu2+, Pb2+, Cd2+, Cr6+, and Zn2+.
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Affiliation(s)
- Bin Wu
- College of Chemistry and Enviromental Science, Inner Mongolia Key Laboratory of Environmental Chemistry, Inner Mongolia Normal University, 81 zhaowudalu, Hohhot 010022, China;
| | - Lu Ga
- College of Pharmacy, Inner Mongolia Medical University, Jinchuankaifaqu, Hohhot 010110, China;
| | - Yong Wang
- College of Geographical Science, Inner Mongolia Normal University, 81 Zhaowudalu, Hohhot 010022, China
| | - Jun Ai
- College of Chemistry and Enviromental Science, Inner Mongolia Key Laboratory of Environmental Chemistry, Inner Mongolia Normal University, 81 zhaowudalu, Hohhot 010022, China;
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4
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Murillo A, Holgado M, Laguna M. Reports on the sensitivity enhancement in interferometric based biosensors by biotin-streptavidin system. Heliyon 2023; 9:e23123. [PMID: 38149195 PMCID: PMC10750048 DOI: 10.1016/j.heliyon.2023.e23123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 12/28/2023] Open
Abstract
Antibody biotinylation is a process of attaching biotin molecules to antibodies by chemically modifying specific functional groups on the antibodies without altering their antigen recognition specificity. Biotin, a small vitamin, forms a strong and specific interaction with the protein streptavidin, resulting in a stable biotin-streptavidin (biotin-STV) complex. This biotin-STV interaction is widely exploited in various biotechnological applications, including biosensors. Biosensors are analytical devices that employ biological recognition elements, such as antibodies, enzymes, or nucleic acids, to detect and quantify target analytes in a sample. Antibodies are commonly used as recognition elements in biosensors due to their high specificity and affinity. In this study, the antibody anti-Bovine Serum Albumin (αBSA) has been biotinylated at different antibody:biotin ratios, and the stability of this labeling over time has been investigated. Furthermore, the sensitivity of the biosensor for detecting the Bovine Serum Albumin (BSA) protein has been compared using the biotinylated antibody and the non-biotinylated form, showing a four-fold improvement in detection. This system was also compared with the Enzyme-Linked ImmunoSorbent Assay (ELISA) technique. The advantages of using biotinylated antibodies in biosensors include increased stability and reproducibility of the biorecognition layer, as well as flexibility in sensor design, as different biotinylated antibodies can be utilized for diverse target analytes without altering the sensor's architecture.
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Affiliation(s)
- A.M.M. Murillo
- Group of Optics, Photonics, and Biophotonics, Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid, Parque Científico y Tecnológico de La UPM, Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
- Group of Organ and Tissue on-a-Chip and In-Vitro Detection, Health Research Institute of the Hospital Clínico San Carlos, IdISSC, C/Profesor Martín Lagos s/n, 4a Planta Sur, 28040, Madrid, Spain
| | - M. Holgado
- Group of Optics, Photonics, and Biophotonics, Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid, Parque Científico y Tecnológico de La UPM, Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
- Group of Organ and Tissue on-a-Chip and In-Vitro Detection, Health Research Institute of the Hospital Clínico San Carlos, IdISSC, C/Profesor Martín Lagos s/n, 4a Planta Sur, 28040, Madrid, Spain
- Department of Applied Physics and Materials Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutiérrez Abascal, 2, 28006, Madrid, Spain
| | - M. Laguna
- Group of Optics, Photonics, and Biophotonics, Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid, Parque Científico y Tecnológico de La UPM, Campus de Montegancedo, Pozuelo de Alarcón, 28223, Madrid, Spain
- Group of Organ and Tissue on-a-Chip and In-Vitro Detection, Health Research Institute of the Hospital Clínico San Carlos, IdISSC, C/Profesor Martín Lagos s/n, 4a Planta Sur, 28040, Madrid, Spain
- Department of Applied Physics and Materials Engineering, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, C/José Gutiérrez Abascal, 2, 28006, Madrid, Spain
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Gregucci D, Nazir F, Calabretta MM, Michelini E. Illuminating Progress: The Contribution of Bioluminescence to Sustainable Development Goal 6-Clean Water and Sanitation-Of the United Nations 2030 Agenda. SENSORS (BASEL, SWITZERLAND) 2023; 23:7244. [PMID: 37631781 PMCID: PMC10458275 DOI: 10.3390/s23167244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/12/2023] [Accepted: 08/14/2023] [Indexed: 08/27/2023]
Abstract
The United Nations Agenda 2030 Sustainable Development Goal 6 (SDG 6) aims at ensuring the availability and sustainable management of water and sanitation. The routine monitoring of water contaminants requires accurate and rapid analytical techniques. Laboratory analyses and conventional methods of field sampling still require considerable labor and time with highly trained personnel and transport to a central facility with sophisticated equipment, which renders routine monitoring cumbersome, time-consuming, and costly. Moreover, these methods do not provide information about the actual toxicity of water, which is crucial for characterizing complex samples, such as urban wastewater and stormwater runoff. The unique properties of bioluminescence (BL) offer innovative approaches for developing advanced tools and technologies for holistic water monitoring. BL biosensors offer a promising solution by combining the natural BL phenomenon with cutting-edge technologies. This review provides an overview of the recent advances and significant contributions of BL to SDG 6, focusing attention on the potential use of the BL-based sensing platforms for advancing water management practices, protecting ecosystems, and ensuring the well-being of communities.
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Affiliation(s)
- Denise Gregucci
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (D.G.); (F.N.); (M.M.C.)
- Center for Applied Biomedical Research (CRBA), Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, 40138 Bologna, Italy
| | - Faisal Nazir
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (D.G.); (F.N.); (M.M.C.)
| | - Maria Maddalena Calabretta
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (D.G.); (F.N.); (M.M.C.)
- Center for Applied Biomedical Research (CRBA), Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, 40138 Bologna, Italy
| | - Elisa Michelini
- Department of Chemistry “Giacomo Ciamician”, University of Bologna, Via Selmi 2, 40126 Bologna, Italy; (D.G.); (F.N.); (M.M.C.)
- Center for Applied Biomedical Research (CRBA), Azienda Ospedaliero-Universitaria Policlinico S. Orsola-Malpighi, 40138 Bologna, Italy
- Health Sciences and Technologies Interdepartmental Center for Industrial Research (HSTICIR), University of Bologna, 40126 Bologna, Italy
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6
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Igarashi A, Abe M, Kuroiwa S, Ohashi K, Yamada H. Enhancement of Refractive Index Sensitivity Using Small Footprint S-Shaped Double-Spiral Resonators for Biosensing. SENSORS (BASEL, SWITZERLAND) 2023; 23:6177. [PMID: 37448026 DOI: 10.3390/s23136177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023]
Abstract
We demonstrate an S-shaped double-spiral microresonator (DSR) for detecting small volumes of analytes, such as liquids or gases, penetrating a microfluidic channel. Optical-ring resonators have been applied as label-free and high-sensitivity biosensors by using an evanescent field for sensing the refractive index of analytes. Enlarging the ring resonator size is a solution for amplifying the interactions between the evanescent field and biomolecules to obtain a higher refractive index sensitivity of the attached analytes. However, it requires a large platform of a hundred square millimeters, and 99% of the cavity area would not involve evanescent field sensing. In this report, we demonstrate the novel design of a Si-based S-shaped double-spiral resonator on a silicon-on-insulator substrate for which the cavity size was 41.6 µm × 88.4 µm. The proposed resonator footprint was reduced by 680 times compared to a microring resonator with the same cavity area. The fabricated resonator exposed more sensitive optical characteristics for refractive index biosensing thanks to the enhanced contact interface by a long cavity length of DSR structures. High quality factors of 1.8 × 104 were demonstrated for 1.2 mm length DSR structures, which were more than two times higher than the quality factors of microring resonators. A bulk sensitivity of 1410 nm/RIU was calculated for detecting 1 µL IPA solutions inside a 200 µm wide microchannel by using the DSR cavity, which had more than a 10-fold higher sensitivity than the sensitivity of the microring resonators. A DSR device was also used for the detection of 100 ppm acetone gas inside a closed bottle.
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Affiliation(s)
- Anh Igarashi
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
| | - Maho Abe
- Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, Japan
| | - Shigeki Kuroiwa
- R&D Group, KOKOROMI Inc., Shinjuku-ku, Tokyo 169-0051, Japan
| | - Keishi Ohashi
- R&D Group, KOKOROMI Inc., Shinjuku-ku, Tokyo 169-0051, Japan
| | - Hirohito Yamada
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
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7
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Zhang G, Liu X, Zhang W, Lang X, Singh R, Wang Y, Xie Y, Zhang B, Kumar S, Li G. Effective splicing technique of different cladding diameter-based optical fibers and performance evaluation. APPLIED OPTICS 2023; 62:3904-3908. [PMID: 37706699 DOI: 10.1364/ao.487134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 04/08/2023] [Indexed: 09/15/2023]
Abstract
In this work, the fabrication and sensing performance of fusion structures based on single-mode fiber (SMF) and multimode fiber (MMF) with different cladding diameters are discussed, and the effects of different lengths of MMF and fiber etching on sensing performance are analyzed. First, the transmitted intensity measurement experiment is performed, and the results indicate that the performance of the SMF-MMF-SMF(SMS)-based structure is better for sensing purposes. In addition, the results demonstrate that the performance of etched fiber is better than that of non-etched fiber. The etched fiber structure with lower fiber diameters produces more evanescent waves and is better for sensing purposes. Therefore, the proposed structure has certain development potential as an application of future optical fiber sensors.
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8
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Zezza P, Lucío MI, Fernández E, Maquieira Á, Bañuls MJ. Surface Micro-Patterned Biofunctionalized Hydrogel for Direct Nucleic Acid Hybridization Detection. BIOSENSORS 2023; 13:312. [PMID: 36979524 PMCID: PMC10046352 DOI: 10.3390/bios13030312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
The present research is focused on the development of a biofunctionalized hydrogel with a surface diffractive micropattern as a label-free biosensing platform. The biosensors described in this paper were fabricated with a holographic recording of polyethylene terephthalate (PET) surface micro-structures, which were then transferred into a hydrogel material. Acrylamide-based hydrogels were obtained with free radical polymerization, and propargyl acrylate was added as a comonomer, which allowed for covalent immobilization of thiolated oligonucleotide probes into the hydrogel network, via thiol-yne photoclick chemistry. The comonomer was shown to significantly contribute to the immobilization of the probes based on fluorescence imaging. Two different immobilization approaches were demonstrated: during or after hydrogel synthesis. The second approach showed better loading capacity of the bioreceptor groups. Diffraction efficiency measurements of hydrogel gratings at 532 nm showed a selective response reaching a limit of detection in the complementary DNA strand of 2.47 µM. The label-free biosensor as designed could significantly contribute to direct and accurate analysis in medical diagnosis as it is cheap, easy to fabricate, and works without the need for further reagents.
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Affiliation(s)
- Paola Zezza
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politécnica de Valéncia, Universitat de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
| | - María Isabel Lucío
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politécnica de Valéncia, Universitat de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
| | - Estrella Fernández
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politécnica de Valéncia, Universitat de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
| | - Ángel Maquieira
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politécnica de Valéncia, Universitat de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
- Departamento de Química, Universitat Politécnica de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
| | - María-José Bañuls
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politécnica de Valéncia, Universitat de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
- Departamento de Química, Universitat Politécnica de Valéncia, Camino de Vera s/n, 46022 Valencia, Spain
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9
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Li B, Wang Q, Sohail M, Zhang X, He H, Lin L. Facilitating the determination of microcystin toxins with bio-inspired sensors. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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10
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Franko M, Goljat L, Liu M, Budasheva H, Žorž Furlan M, Korte D. Recent Progress and Applications of Thermal Lens Spectrometry and Photothermal Beam Deflection Techniques in Environmental Sensing. SENSORS (BASEL, SWITZERLAND) 2023; 23:472. [PMID: 36617073 PMCID: PMC9824884 DOI: 10.3390/s23010472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
This paper presents recent development and applications of thermal lens microscopy (TLM) and beam deflection spectrometry (BDS) for the analysis of water samples and sea ice. Coupling of TLM detection to a microfluidic system for flow injection analysis (μFIA) enables the detection of microcystin-LR in waters with a four samples/min throughput (in triplicate injections) and provides an LOD of 0.08 µg/L which is 12-times lower than the MCL for microcystin-LR in water. μFIA-TLM was also applied for the determination of total Fe and Fe(II) in 3 µL samples of synthetic cloudwater. The LODs were found to be 100 nM for Fe(II) and 70 nM for total Fe. The application of µFIA-TLM for the determination of ammonium in water resulted in an LOD of 2.3 µM for injection of a 5 µL sample and TLM detection in a 100 µm deep microfluidic channel. For the determination of iron species in sea ice, the BDS was coupled to a diffusive gradient in the thin film technique (DGT). The 2D distribution of Fe(II) and total Fe on DGT gels provided by the BDS (LOD of 50 nM) reflected the distribution of Fe species in sea ice put in contact with DGT gels.
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Affiliation(s)
- Mladen Franko
- Correspondence: (M.F.); (D.K.); Tel.: +386-5-331-53-29 (M.F.)
| | | | | | | | | | - Dorota Korte
- Correspondence: (M.F.); (D.K.); Tel.: +386-5-331-53-29 (M.F.)
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11
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Shao W, Yang X, Hu J, Wang Y. Bias voltage-tuned hot-electron optical sensing with planar Au-MoS 2-Au junction. OPTICS EXPRESS 2022; 30:43172-43181. [PMID: 36523021 DOI: 10.1364/oe.475342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
Harvesting photoexcited hot electrons in metals promises a number of benefits in optical sensing. In practice, hot-electron optical sensors with tunable performance in electrical sensitivity are still absent. Herein, we propose a design to realize tunable hot-electron optical sensing. The proposed device consists of a one-dimensional grating deposited on a planar Au-MoS2-Au junction that is used for efficient hot-electron harvesting. Photoelectric simulations show that when grating-assisted plasmonic resonance is excited, bias voltage between two Au layers can be used to manipulate the magnitude and polarity of responsivity at the working wavelength. Therefore, the change in responsivity that originates from the change in refractive index of analyte in which the device is immersed can also be tuned by applied voltage. It is found that when bias voltage is 1 V, the electrical sensitivity doubled compared with that when applied voltage is absent. We believe the bias voltage-tuned strategy that is applied to planar hot-electron harvesting junctions facilitates the development of optical sensing.
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12
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Butt MA, Voronkov GS, Grakhova EP, Kutluyarov RV, Kazanskiy NL, Khonina SN. Environmental Monitoring: A Comprehensive Review on Optical Waveguide and Fiber-Based Sensors. BIOSENSORS 2022; 12:bios12111038. [PMID: 36421155 PMCID: PMC9688474 DOI: 10.3390/bios12111038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 05/31/2023]
Abstract
Globally, there is active development of photonic sensors incorporating multidisciplinary research. The ultimate objective is to develop small, low-cost, sensitive, selective, quick, durable, remote-controllable sensors that are resistant to electromagnetic interference. Different photonic sensor designs and advances in photonic frameworks have shown the possibility to realize these capabilities. In this review paper, the latest developments in the field of optical waveguide and fiber-based sensors which can serve for environmental monitoring are discussed. Several important topics such as toxic gas, water quality, indoor environment, and natural disaster monitoring are reviewed.
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Affiliation(s)
| | - Grigory S Voronkov
- Ufa University of Science and Technology, Z. Validi St. 32, 450076 Ufa, Russia
| | | | - Ruslan V Kutluyarov
- Ufa University of Science and Technology, Z. Validi St. 32, 450076 Ufa, Russia
| | - Nikolay L Kazanskiy
- Samara National Research University, 443086 Samara, Russia
- IPSI RAS-Branch of the FSRC "Crystallography and Photonics" RAS, 443001 Samara, Russia
| | - Svetlana N Khonina
- Samara National Research University, 443086 Samara, Russia
- IPSI RAS-Branch of the FSRC "Crystallography and Photonics" RAS, 443001 Samara, Russia
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13
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Madej-Kiełbik L, Gzyra-Jagieła K, Jóźwik-Pruska J, Dziuba R, Bednarowicz A. Biopolymer Composites with Sensors for Environmental and Medical Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7493. [PMID: 36363084 PMCID: PMC9659006 DOI: 10.3390/ma15217493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 10/13/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
One of the biggest economic and environmental sustainability problems is the over-reliance on petroleum chemicals in polymer production. This paper presents an overview of the current state of knowledge on biopolymers combined with biosensors in terms of properties, compounding methods and applications, with a focus on medical and environmental aspects. Therefore, this article is devoted to environmentally friendly polymer materials. The paper presents an overview of the current state of knowledge on biopolymers combined with biosensors in terms of properties, compounding methods and applications, with a special focus on medical and environmental aspects. The paper presents the current state of knowledge, as well as prospects. The article shows that biopolymers made from renewable raw materials are of great interest in various fields of science and industry. These materials not only replace existing polymers in many applications, but also provide new combinations of properties for new applications. Composite materials based on biopolymers are considered superior to traditional non-biodegradable materials due to their ability to degrade when exposed to environmental factors. The paper highlights the combination of polymers with nanomaterials which allows the preparation of chemical sensors, thus enabling their use in environmental or medical applications due to their biocompatibility and sensitivity. This review focuses on analyzing the state of research in the field of biopolymer-sensor composites.
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Affiliation(s)
- Longina Madej-Kiełbik
- Lukasiewicz Research Network—Lodz Institute of Technology, 19/27 M. Sklodowskiej-Curie Str., 90-570 Lodz, Poland
| | - Karolina Gzyra-Jagieła
- Lukasiewicz Research Network—Lodz Institute of Technology, 19/27 M. Sklodowskiej-Curie Str., 90-570 Lodz, Poland
- Faculty of Material Technologies and Textile Design, Lodz University of Technology, 116 Żeromskiego Street, 90-924 Lodz, Poland
| | - Jagoda Jóźwik-Pruska
- Lukasiewicz Research Network—Lodz Institute of Technology, 19/27 M. Sklodowskiej-Curie Str., 90-570 Lodz, Poland
| | - Radosław Dziuba
- Department of World Economy and European Integration, University of Lodz, 41/43 Rewolucji 1905 Str., 90-214 Lodz, Poland
| | - Anna Bednarowicz
- Lukasiewicz Research Network—Lodz Institute of Technology, 19/27 M. Sklodowskiej-Curie Str., 90-570 Lodz, Poland
- Faculty of Material Technologies and Textile Design, Lodz University of Technology, 116 Żeromskiego Street, 90-924 Lodz, Poland
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Mou L, Mandal K, Mecwan MM, Hernandez AL, Maity S, Sharma S, Herculano RD, Kawakita S, Jucaud V, Dokmeci MR, Khademhosseini A. Integrated biosensors for monitoring microphysiological systems. LAB ON A CHIP 2022; 22:3801-3816. [PMID: 36074812 PMCID: PMC9635816 DOI: 10.1039/d2lc00262k] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Microphysiological systems (MPSs), also known as organ-on-a-chip models, aim to recapitulate the functional components of human tissues or organs in vitro. Over the last decade, with the advances in biomaterials, 3D bioprinting, and microfluidics, numerous MPSs have emerged with applications to study diseased and healthy tissue models. Various organs have been modeled using MPS technology, such as the heart, liver, lung, and blood-brain barrier. An important aspect of in vitro modeling is the accurate phenotypical and functional characterization of the modeled organ. However, most conventional characterization methods are invasive and destructive and do not allow continuous monitoring of the cells in culture. On the other hand, microfluidic biosensors enable in-line, real-time sensing of target molecules with an excellent limit of detection and in a non-invasive manner, thereby effectively overcoming the limitation of the traditional techniques. Consequently, microfluidic biosensors have been increasingly integrated into MPSs and used for in-line target detection. This review discusses the state-of-the-art microfluidic biosensors by providing specific examples, detailing their main advantages in monitoring MPSs, and highlighting current developments in this field. Finally, we describe the remaining challenges and potential future developments to advance the current state-of-the-art in integrated microfluidic biosensors.
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Affiliation(s)
- Lei Mou
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
- Department of Clinical Laboratory, Third Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, No. 63 Duobao Road, Liwan District, Guangzhou, Guangdong, P. R. China
| | - Kalpana Mandal
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Marvin Magan Mecwan
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Ana Lopez Hernandez
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Surjendu Maity
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Saurabh Sharma
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Rondinelli Donizetti Herculano
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
- Department of Bioprocess and Biotechnology Engineering, School of Pharmaceutical Sciences, São Paulo State University (UNESP), Araraquara, SP 14801-902, Brazil
| | - Satoru Kawakita
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Vadim Jucaud
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Mehmet Remzi Dokmeci
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, 1018 Westwood Blvd, Los Angeles, California, USA.
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15
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Dorontic S, Bonasera A, Scopelliti M, Markovic O, Bajuk Bogdanović D, Ciasca G, Romanò S, Dimkić I, Budimir M, Marinković D, Jovanovic S. Gamma-Ray-Induced Structural Transformation of GQDs towards the Improvement of Their Optical Properties, Monitoring of Selected Toxic Compounds, and Photo-Induced Effects on Bacterial Strains. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12152714. [PMID: 35957147 PMCID: PMC9370814 DOI: 10.3390/nano12152714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 06/03/2023]
Abstract
Structural modification of different carbon-based nanomaterials is often necessary to improve their morphology and optical properties, particularly the incorporation of N-atoms in graphene quantum dots (GQDs). Here, a clean, simple, one-step, and eco-friendly method for N-doping of GQDs using gamma irradiation is reported. GQDs were irradiated in the presence of the different ethylenediamine (EDA) amounts (1 g, 5 g, and 10 g) and the highest % of N was detected in the presence of 10 g. N-doped GQDs emitted strong, blue photoluminescence (PL). Photoluminescence quantum yield was increased from 1.45, as obtained for non-irradiated dots, to 7.24% for those irradiated in the presence of 1 g of EDA. Modified GQDs were investigated as a PL probe for the detection of insecticide Carbofuran (2,2-Dimethyl-2,3-dihydro-1-benzofuran-7-yl methylcarbamate) and herbicide Amitrole (3-amino-1,2,4-triazole). The limit of detection was 5.4 μmol L-1 for Carbofuran. For the first time, Amitrole was detected by GQDs in a turn-off/turn-on mechanism using Pd(II) ions as a quenching agent. First, Pd(II) ions were quenched (turn-off) PL of GQDs, while after Amitrole addition, PL was recovered linearly with Amitrole concentration (turn-on). LOD was 2.03 μmol L-1. These results suggest that modified GQDs can be used as an efficient new material for Carbofuran and Amitrole detection. Furthermore, the phototoxicity of dots was investigated on both Gram-positive and Gram-negative bacterial strains. When bacterial cells were exposed to different GQD concentrations and illuminated with light of 470 nm wavelength, the toxic effects were not observed.
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Affiliation(s)
- Sladjana Dorontic
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Aurelio Bonasera
- Department of Physics and Chemistry—Emilio Segrè, University of Palermo, 90128 Palermo, Italy
- Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, Viale delle Scienze, Bld. 17, 90128 Palermo, Italy
| | - Michelangelo Scopelliti
- Department of Physics and Chemistry—Emilio Segrè, University of Palermo, 90128 Palermo, Italy
- Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Palermo Research Unit, Viale delle Scienze, Bld. 17, 90128 Palermo, Italy
| | - Olivera Markovic
- Department of Chemistry, Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
| | | | - Gabriele Ciasca
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 11158 Rome, Italy
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158 Belgrade, Serbia
| | - Sabrina Romanò
- Dipartimento di Neuroscienze, Sezione di Fisica, Università Cattolica del Sacro Cuore, 00168 Rome, Italy
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS, 11158 Rome, Italy
| | - Ivica Dimkić
- Faculty of Biology, University of Belgrade, Studentski Trg 16, 11158 Belgrade, Serbia
| | - Milica Budimir
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Dragana Marinković
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
| | - Svetlana Jovanovic
- Vinča Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, P.O. Box 522, 11000 Belgrade, Serbia
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16
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EL AAMRI M, MOHAMMADI H, Amine A. Development of a Novel Electrochemical Sensor Based on Functionalized Carbon Black for the Detection of Guanine Released from DNA Hydrolysis. ELECTROANAL 2022. [DOI: 10.1002/elan.202100613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Maliana EL AAMRI
- University Hassan II Mohammedia Casablanca Faculty of Science Techniques MOROCCO
| | - Hasna MOHAMMADI
- University Hassan II Mohammedia Casablanca Faculty of Science Techniques MOROCCO
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17
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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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18
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Sahu S, Roy R, Anand R. Harnessing the Potential of Biological Recognition Elements for Water Pollution Monitoring. ACS Sens 2022; 7:704-715. [PMID: 35275620 DOI: 10.1021/acssensors.1c02579] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Environmental monitoring of pollutants is an imperative first step to remove the genotoxic, embryotoxic, and carcinogenic toxins. Various biological sensing elements such as proteins, aptamers, whole cells, etc., have been used to track down major pollutants, including heavy metals, aromatic pollutants, pathogenic microorganisms, and pesticides in both environmental samples and drinking water, demonstrating their potential in a true sense. The intermixed use of nanomaterials, electronics, and microfluidic systems has further improved the design and enabled robust on-site detection with enhanced sensitivity. Through this perspective, we shed light on the advances in the field and entail recent efforts to optimize these systems for real-time, online sensing and on-site field monitoring.
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Affiliation(s)
- Subhankar Sahu
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Rohita Roy
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ruchi Anand
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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19
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Hua Y, Ma J, Li D, Wang R. DNA-Based Biosensors for the Biochemical Analysis: A Review. BIOSENSORS 2022; 12:bios12030183. [PMID: 35323453 PMCID: PMC8945906 DOI: 10.3390/bios12030183] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 03/09/2022] [Accepted: 03/16/2022] [Indexed: 05/21/2023]
Abstract
In recent years, DNA-based biosensors have shown great potential as the candidate of the next generation biomedical detection device due to their robust chemical properties and customizable biosensing functions. Compared with the conventional biosensors, the DNA-based biosensors have advantages such as wider detection targets, more durable lifetime, and lower production cost. Additionally, the ingenious DNA structures can control the signal conduction near the biosensor surface, which could significantly improve the performance of biosensors. In order to show a big picture of the DNA biosensor's advantages, this article reviews the background knowledge and recent advances of DNA-based biosensors, including the functional DNA strands-based biosensors, DNA hybridization-based biosensors, and DNA templated biosensors. Then, the challenges and future directions of DNA-based biosensors are discussed and proposed.
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20
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Zhang W, Wang Z, Singh R, Wang Y, Xie Y, Su X, Gao F, Li G, Swarnakar S, Min R, Zhang B, Kumar S. Performance analysis of an SMF-/MMF-based single/double/quadruple tapered optical fiber structure. APPLIED OPTICS 2022; 61:2140-2146. [PMID: 35333240 DOI: 10.1364/ao.453486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 02/12/2022] [Indexed: 06/14/2023]
Abstract
This paper primarily discusses the structural performance analysis of a single/double/quadruple tapered optical fiber (TOF) structure based on single-mode fiber (SMF) and multi-mode fiber (MMF). Furthermore, the TOF's performance, including its diameter distribution, transmitted intensity, and reproducibility, is also evaluated. According to the experimental results, it can be concluded that the quadruple TOF structure based on SMF has a higher density of evanescent waves (EWs) on the surface of the tapered area, which is essential for the fabrication of high-sensitivity optical fiber sensors. The structure proposed in this article is feasible, and it can be used for optical fiber sensing while offering significant practical and promising applications as well.
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21
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Boregowda N, Jogigowda SC, Bhavya G, Sunilkumar CR, Geetha N, Udikeri SS, Chowdappa S, Govarthanan M, Jogaiah S. Recent advances in nanoremediation: Carving sustainable solution to clean-up polluted agriculture soils. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 297:118728. [PMID: 34974084 DOI: 10.1016/j.envpol.2021.118728] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/05/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Agriculture is one of the foremost significant human activities, which symbolizes the key source for food, fuel and fibers. This activity results in a lot of ecological harms particularly with the excessive usage of chemical fertilizers and pesticides. Different agricultural practices have remained industrialized to advance food production, due to the growth in the world population and to meet the food demand through the routine use of more effective fertilizers and pesticides. Soil is intensely embellished by environmental contamination and it can be stated as "universal incline." Soil pollution usually occurs from sewage wastes, accidental discharges or as byproducts of chemical residues of unrestrained production of numerous materials. Soil pollution with hazardous materials alters the physical, chemical, and biological properties, causing undesirable changes in soil fertility and ecosystem. Engineered nanomaterials offer various solutions for remediation of contaminated soils. Engineered nanomaterial-enable technologies are able to prevent the uncontrolled release of harmful materials into the environment along with capabilities to combat soil and groundwater borne pollutants. Currently, nanobiotechnology signifies a hopeful attitude to advance agronomic production and remediate polluted soils. Studies have outlined the way of nanomaterial applications to restore the eminence of the environment and assist the detection of polluted sites, along with potential remedies. This review focuses on the latest developments in agricultural nanobiotechnology and the tools developed to combat soil or land and or terrestrial pollution, as well as the benefits of using these tools to increase soil fertility and reduce potential toxicity.
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Affiliation(s)
- Nandini Boregowda
- Nanobiotechnology Laboratory, DOS in Biotechnology, Manasagangotri, University of Mysore, Mysuru, 570 006, India
| | - Sanjay C Jogigowda
- Department of Oral Medicine & Radiology, JSS Dental College & Hospital, JSS Academy of Higher Education & Research, Sri Shivarathreeshwara Nagara, Mysuru, 570015, India
| | - Gurulingaiah Bhavya
- Nanobiotechnology Laboratory, DOS in Biotechnology, Manasagangotri, University of Mysore, Mysuru, 570 006, India
| | - Channarayapatna Ramesh Sunilkumar
- Nanobiotechnology Laboratory, DOS in Biotechnology, Manasagangotri, University of Mysore, Mysuru, 570 006, India; Global Association of Scientific Young Minds, GASYM, Mysuru, India
| | - Nagaraja Geetha
- Nanobiotechnology Laboratory, DOS in Biotechnology, Manasagangotri, University of Mysore, Mysuru, 570 006, India
| | - Shashikant Shiddappa Udikeri
- Agricultural Research Station, Dharwad Farm, University of Agricultural Sciences, Dharwad, 580005, Karnataka, India
| | - Srinivas Chowdappa
- Department of Microbiology and Biotechnology, Jnana Bharathi Campus, Bangalore University, Bengaluru, 560 056, Karnataka, India
| | - Muthusamy Govarthanan
- Department of Environmental Engineering, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, South Korea
| | - Sudisha Jogaiah
- Laboratory of Plant Healthcare and Diagnostics, PG Department of Biotechnology and Microbiology, Karnatak University, Dharwad, 580 003, India.
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22
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Toppo AL, Jujjavarapu SE. New insights for integration of nano particle with microfluidic systems for sensor applications. Biomed Microdevices 2022; 24:13. [PMID: 35171352 DOI: 10.1007/s10544-021-00598-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/10/2021] [Indexed: 11/29/2022]
Abstract
A biosensor is a compact device, which utilizes biological derived recognition component, immobilized on a transducer to analyze an analyte. Nanoparticles with their unique chemical and physical properties are versatile in their applications to develop as sensors. Different nanoparticles play different roles in the sensing systems like metal and metal oxide nanoparticles. The application of Gold, Silver and Copper nanoparticles will be discussed in brief. The nanoparticles typically function as substrates for immobilization of biomolecules, as catalytic agent, electron transfer agent between electrode surface and the biomolecules, and as reactants. Microfluidic deals with manipulating very small volumes of fluids (micro and nanoliters). This miniaturized platform enhances control of flow conditions and mixing rate of fluids. The microfluidics improves the sensitivity of the analysis, and reduces the volumes of sample and reagent in the analysis. The review specifically aims at representing microfluidics-based sensors and nanoparticle based sensors. This review will also focus on probable merger of these two fields to take advantage of both the fields and this will help in pushing the boundaries of these fields further more.
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Affiliation(s)
- A L Toppo
- Deparment of Biotechnology, National Institute of Technology Raipur, Raipur, India
| | - S E Jujjavarapu
- Deparment of Biotechnology, National Institute of Technology Raipur, Raipur, India.
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23
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Luka G, Samiei E, Tasnim N, Dalili A, Najjaran H, Hoorfar M. Comprehensive review of conventional and state-of-the-art detection methods of Cryptosporidium. JOURNAL OF HAZARDOUS MATERIALS 2022; 421:126714. [PMID: 34325293 DOI: 10.1016/j.jhazmat.2021.126714] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2021] [Revised: 07/06/2021] [Accepted: 07/19/2021] [Indexed: 06/13/2023]
Abstract
Cryptosporidium is a critical waterborne protozoan pathogen found in water resources that have been a major cause of death and serious illnesses worldwide, costing millions of dollars annually for its detection and treatment. Over the past several decades, substantial efforts have been made towards developing techniques for the detection of Cryptosporidium. Early diagnostic techniques were established based on the existing tools in laboratories, such as microscopes. Advancements in fluorescence microscopy, immunological, and molecular techniques have led to the development of several kits for the detection of Cryptosporidium spp. However, these methods have several limitations, such as long processing times, large sample volumes, the requirement for bulky and expensive laboratory tools, and the high cost of reagents. There is an urgent need to improve these existing techniques and develop low-cost, portable and rapid detection tools for applications in the water quality industry. In this review, we compare recent advances in nanotechnology, biosensing and microfluidics that have facilitated the development of sophisticated tools for the detection of Cryptosporidium spp.Finally, we highlight the advantages and disadvantages, of these state-of-the-art detection methods compared to current analytical methodologies and discuss the need for future developments to improve such methods for detecting Cryptosporidium in the water supply chain to enable real-time and on-site monitoring in water resources and remote areas.
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Affiliation(s)
- George Luka
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Ehsan Samiei
- Department of Mechanical & Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada.
| | - Nishat Tasnim
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Arash Dalili
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Homayoun Najjaran
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
| | - Mina Hoorfar
- School of Engineering, University of British Columbia, 3333 University Way, Kelowna, BC V1V1V7, Canada.
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Abstract
Coronaviruses are well known airborne viruses that infect humans, other mammals, and birds. COVID-19 is the disease caused by the last emerging type of corona viruses; SARS-CoV-2 which resulted in the ongoing pandemic. Since its first identification, SARS-CoV-2 has spread globally causing significant morbidity and mortality. Fast and reliable diagnostic methods are crucial to control the virus outbreak. In this chapter, we summarize the traditional methods used to detect corona viruses. Various biosensors used for the detection of the virus antibodies and antigens were briefly discussed. Different biosensing approaches for the detection of corona viruses were presented with special emphasis on the reported biosensors for the detection of SARS-CoV-2. Major advancements in the biosensors area for corona viruses such as the use of cotton, magnetic nanoparticles, graphene, gold nanoparticles, and portable devices are highlighted. The challenges and future perspectives in the biosensors for the detection of corona viruses are discussed.
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25
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Sensitive recognition of Shiga toxin using biosensor technology: An efficient platform towards bioanalysis of pathogenic bacterial. Microchem J 2022. [DOI: 10.1016/j.microc.2021.106900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Sammi A, Divya, Mahapatra S, Kumar R, Chandra P. Nano-Bio-engineered Silk Matrix based Devices for Molecular Bioanalysis. Biotechnol Bioeng 2021; 119:784-806. [PMID: 34958139 DOI: 10.1002/bit.28021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/05/2021] [Accepted: 12/21/2021] [Indexed: 11/08/2022]
Abstract
Silk is a fibrous protein, has been a part of human lives for centuries and was used as suture and textile material. Silk is mainly produced by members of certain arthropods such as spiders, butterflies, mites, and moths. However, recent technological advances have revolutionized silk as a biomaterial for various applications ranging from heat sensors to robust fibers. The biocompatibility, mechanical resilience, and biodegradability of the material make it a suitable candidate for biomaterials. Silk can also be easily converted into several morphological forms, including fibers, films, sponges, and hydrogels. Provided these abilities, silk have received excellent traction from scientists worldwide for various developments, one of them being its use as a bio-sensor. The diversity of silk materials offers various options, giving scientists the freedom to choose from and personalize them as per their needs. In this review, we foremost look upon the composition, production, properties, and various morphologies of silk. The numerous applications of silk and its derivatives for fabricating biosensors to detect small molecules, macromolecules, and cells have been explored comprehensively. Also, the data from various globally developed sensors using silk have been described into organized tables for each category of molecules, along with their important analytical details. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Aditi Sammi
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, Uttar Pradesh, 221005, India
| | - Divya
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, Uttar Pradesh, 221005, India
| | - Supratim Mahapatra
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, Uttar Pradesh, 221005, India
| | - Rahul Kumar
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, Uttar Pradesh, 221005, India
| | - Pranjal Chandra
- Laboratory of Bio-Physio Sensors and Nanobioengineering, School of Biochemical Engineering, Indian Institute of Technology (BHU) Varanasi, Varanasi, Uttar Pradesh, 221005, India
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27
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Luka GS, Nowak E, Toyata QR, Tasnim N, Najjaran H, Hoorfar M. Portable on-chip colorimetric biosensing platform integrated with a smartphone for label/PCR-free detection of Cryptosporidium RNA. Sci Rep 2021; 11:23192. [PMID: 34853388 PMCID: PMC8636559 DOI: 10.1038/s41598-021-02580-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 11/16/2021] [Indexed: 11/13/2022] Open
Abstract
Cryptosporidium, a protozoan pathogen, is a leading threat to public health and the economy. Herein, we report the development of a portable, colorimetric biosensing platform for the sensitive, selective and label/PCR-free detection of Cryptosporidium RNA using oligonucleotides modified gold nanoparticles (AuNPs). A pair of specific thiolated oligonucleotides, complementary to adjacent sequences on Cryptosporidium RNA, were attached to AuNPs. The need for expensive laboratory-based equipment was eliminated by performing the colorimetric assay on a micro-fabricated chip in a 3D-printed holder assembly. A smartphone camera was used to capture an image of the color change for quantitative analysis. The detection was based on the aggregation of the gold nanoparticles due to the hybridization between the complementary Cryptosporidium RNA and the oligonucleotides immobilized on the AuNPs surface. In the complementary RNA's presence, a distinctive color change of the AuNPs (from red to blue) was observed by the naked eye. However, in the presence of non-complementary RNA, no color change was observed. The sensing platform showed wide linear responses between 5 and 100 µM with a low detection limit of 5 µM of Cryptosporidium RNA. Additionally, the sensor developed here can provide information about different Cryptosporidium species present in water resources. This cost-effective, easy-to-use, portable and smartphone integrated on-chip colorimetric biosensor has great potential to be used for real-time and portable POC pathogen monitoring and molecular diagnostics.
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Affiliation(s)
- George S Luka
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Ephraim Nowak
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Quin Robert Toyata
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Nishat Tasnim
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Homayoun Najjaran
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Mina Hoorfar
- School of Engineering, Faculty of Applied Science, The University of British Columbia, Kelowna, BC, V1V 1V7, Canada.
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Singh MK, Pal S, Verma A, Das R, Prajapati YK. A nanolayered structure for sensitive detection of hemoglobin concentration using surface plasmon resonance. APPLIED PHYSICS. A, MATERIALS SCIENCE & PROCESSING 2021; 127:832. [PMID: 34658541 PMCID: PMC8511850 DOI: 10.1007/s00339-021-04985-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 10/03/2021] [Indexed: 06/13/2023]
Abstract
The objective of the proposed work is to design a biosensor that monitors hemoglobin (Hb) concentration using the combination of nanolayer, i.e., barium titanate (BaTiO3) and antimonene based on surface plasmon resonance (SPR) technique. Antimonene is used here as bio-recognition element (BRE) layer to attach the Hb analyte through physical adsorption due to its hydrophilic nature, higher adsorption energy and larger active surface area. The use of BaTiO3 adlayer (7 nm) just before antimonene is to enhance the refractive index (RI) sensitivity up to 1.90 times for the proposed SPR biosensor. The reason behind sensitivity enhancement is its high dielectric constant which enhances the electromagnetic field with in analyte medium. The performance of the biosensor is demonstrated with performance parameters namely sensitivity, detection accuracy (DA), figure of merit (FOM) and resolution. The proposed biosensor has potential to achieve much higher performance in terms of RI sensitivity of 303.83°/RIU, FOM of 50.39 RIU-1 and resolution of 0.021 g/l in comparison with reported biosensors in the literature for detection of Hb concentration. Thus, based on the obtained results one can say that the proposed work unlocks a reliable sensing in the field of medical science to detect hemoglobin-related diseases in human being.
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Affiliation(s)
- Maneesh Kumar Singh
- Department of Electronics Engineering, National Institute of Technology Uttarakhand, Srinagar, Pauri Garhwal, Uttarakhand 246174 India
| | - Sarika Pal
- Department of Electronics Engineering, National Institute of Technology Uttarakhand, Srinagar, Pauri Garhwal, Uttarakhand 246174 India
| | - Alka Verma
- Department of Electronics and Communication Engineering, Institute of Engineering and Rural Technology Allahabad, Prayagraj, Uttar Pradesh 211002 India
| | - Ritwick Das
- School of Physical Sciences, National Institute of Science Education and Research, Bhubaneswar, 752050 India
| | - Yogendra Kumar Prajapati
- Department of Electronics and Communication Engineering, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, Uttar Pradesh 211004 India
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Cai Y, Zhang J, Zhou Y, Chen C, Lin F, Wang L. Refractive index sensor with alternative high performance using black phosphorus in the all-dielectric configuration. OPTICS EXPRESS 2021; 29:23810-23821. [PMID: 34614639 DOI: 10.1364/oe.433195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/03/2021] [Indexed: 05/23/2023]
Abstract
We theoretically propose a nonplasmonic optical refractive index sensor based on black phosphorus (BP) and other dielectric materials in the infrared band. Due to the anisotropic property of BP, the proposed sensor can achieve alternative sensitivity and figure of merit (FOM) in its different crystal directions. The high sensitivity and FOM are attributed to the strong magnetic resonance in the all-dielectric configuration. The coupled-mode theory (CMT) is used to verify the simulation results and reveal the physical mechanism. Furthermore, influences of the sample and the incident angle on the performance of the sensor are also discussed. Our design utilizes a simple dielectric structure with a BP monolayer, which exhibits great potential for the future high-performance sensor with low cost.
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Novikova OD, Naberezhnykh GA, Sergeev AA. Nanostructured Biosensors Based on Components of Bacterial Membranes. Biophysics (Nagoya-shi) 2021. [DOI: 10.1134/s0006350921040187] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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Zhang Y, Wu Y, Wu Y, Chang Y, Liu M. CRISPR-Cas systems: From gene scissors to programmable biosensors. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116210] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Cao Y, Zhang B, Zhu Z, Xin X, Wu H, Chen B. Microfluidic Based Whole-Cell Biosensors for Simultaneously On-Site Monitoring of Multiple Environmental Contaminants. Front Bioeng Biotechnol 2021; 9:622108. [PMID: 33791284 PMCID: PMC8006271 DOI: 10.3389/fbioe.2021.622108] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 02/18/2021] [Indexed: 12/20/2022] Open
Abstract
Monitoring of environmental contaminants serves a vital role in proactive environmental management and pollution control. Research efforts have been centered on the development of robust whole-cell biosensors in recent years. However, data acquisition, multiple contaminants detection and biosafety issues limit the on-site application of such biosensors. Microfluidic system exhibits great potential to face these challenges via coupling biosensors. Here, we prospect a novel microfluidic based whole-cell biosensor (MWCB) for multiplexing monitoring of diverse contaminants, and design strategies to further increase the specificity, sensitivity and accuracy, reduce signal delay and expand shelf life of the proposed MWCB for on-site environmental applications. The development of MWCB demands multidisciplinary cooperation, and the sensing platforms are highly promising for real-world contaminants monitoring.
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Affiliation(s)
- Yiqi Cao
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Zhiwen Zhu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Xiayin Xin
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Hongjing Wu
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
| | - Bing Chen
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John's, NL, Canada
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Feng Z, Xia G, Lu R, Cai X, Cui H, Hu M. High-Performance Ultra-Thin Spectrometer Optical Design Based on Coddington's Equations. SENSORS 2021; 21:s21020323. [PMID: 33418864 PMCID: PMC7825106 DOI: 10.3390/s21020323] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/02/2021] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
A unique method to design a high-throughput and high-resolution ultrathin Czerny-Turner (UTCT) spectrometer is proposed. This paper reveals an infrequent design process of spectrometers based on Coddington's equations, which will lead us to develop a high-performance spectrometer from scratch. The spectrometer is composed of cylindrical elements except a planar grating. In the simulation design, spot radius is sub-pixel size, which means that almost all of the energy is collected by the detector. The spectral resolution is 0.4 nm at central wavelength and 0.75 nm at edge wavelength when the width of slit is chosen to be 25 μm and the groove density is 900 lines/mm.
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Affiliation(s)
- Zhiwei Feng
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China; (Z.F.); (R.L.); (X.C.); (H.C.)
| | - Guo Xia
- Academy of Opto-Electric Technology, Hefei University of Technology, Hefei 230009, China;
- Special Display and Imaging Technology Innovation Center of Anhui Province, Hefei 230009, China
- National Engineering Laboratory of Special Display Technology, Hefei 230009, China
- Correspondence:
| | - Rongsheng Lu
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China; (Z.F.); (R.L.); (X.C.); (H.C.)
| | - Xiaobo Cai
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China; (Z.F.); (R.L.); (X.C.); (H.C.)
| | - Hao Cui
- School of Instrument Science and Opto-Electronics Engineering, Hefei University of Technology, Hefei 230009, China; (Z.F.); (R.L.); (X.C.); (H.C.)
| | - Mingyong Hu
- Academy of Opto-Electric Technology, Hefei University of Technology, Hefei 230009, China;
- Special Display and Imaging Technology Innovation Center of Anhui Province, Hefei 230009, China
- National Engineering Laboratory of Special Display Technology, Hefei 230009, China
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Gul I, Le W, Jie Z, Ruiqin F, Bilal M, Tang L. Recent advances on engineered enzyme-conjugated biosensing modalities and devices for halogenated compounds. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116145] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Relevance of Biosensor in Climate Smart Organic Agriculture and Their Role in Environmental Sustainability: What Has Been Done and What We Need to Do? CONCEPTS AND STRATEGIES IN PLANT SCIENCES 2021. [DOI: 10.1007/978-3-030-66165-6_7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Akhtar MW, Hassan SA, Ghaffar R, Jung H, Garg S, Hossain MS. The shift to 6G communications: vision and requirements. HUMAN-CENTRIC COMPUTING AND INFORMATION SCIENCES 2020. [PMCID: PMC7750912 DOI: 10.1186/s13673-020-00258-2] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
The sixth-generation (6G) wireless communication network is expected to integrate the terrestrial, aerial, and maritime communications into a robust network which would be more reliable, fast, and can support a massive number of devices with ultra-low latency requirements. The researchers around the globe are proposing cutting edge technologies such as artificial intelligence (AI)/machine learning (ML), quantum communication/quantum machine learning (QML), blockchain, tera-Hertz and millimeter waves communication, tactile Internet, non-orthogonal multiple access (NOMA), small cells communication, fog/edge computing, etc., as the key technologies in the realization of beyond 5G (B5G) and 6G communications. In this article, we provide a detailed overview of the 6G network dimensions with air interface and associated potential technologies. More specifically, we highlight the use cases and applications of the proposed 6G networks in various dimensions. Furthermore, we also discuss the key performance indicators (KPI) for the B5G/6G network, challenges, and future research opportunities in this domain.
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Mao MX, Zheng R, Peng CF, Wei XL. DNA-Gold Nanozyme-Modified Paper Device for Enhanced Colorimetric Detection of Mercury Ions. BIOSENSORS-BASEL 2020; 10:bios10120211. [PMID: 33353224 PMCID: PMC7766257 DOI: 10.3390/bios10120211] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022]
Abstract
In this work, a paper device consisted of a patterned paper chip, wicking pads, and a base was fabricated. On the paper chip, DNA–gold nanoparticles (DNA–AuNPs) were deposited and Hg2+ ions could be adsorbed by the DNA–AuNPs. The formed DNA–AuNP/Hg2+ nanozyme could catalyze the tetramethylbenzidine (TMB)–H2O2 chromogenic reaction. Due to the wicking pads, a larger volume of Hg2+ sample could be applied to the paper device for Hg2+ detection and therefore the color response could be enhanced. The paper device achieved a cut-off value of 50 nM by the naked eye for Hg2+ under optimized conditions. Moreover, quantitative measurements could be implemented by using a desktop scanner and extracting grayscale values. A linear range of 50–2000 nM Hg2+ was obtained with a detection limit of 10 nM. In addition, the paper device could be applied in the detection of environmental water samples with high recoveries ranging from 85.7% to 105.6%. The paper-device-based colorimetric detection was low-cost, simple, and demonstrated high potential in real-sample applications.
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Affiliation(s)
- Min-Xin Mao
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China;
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
| | - Rong Zheng
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
| | - Chi-Fang Peng
- State Key Laboratory of Dairy Biotechnology, Shanghai Engineering Research Center of Dairy Biotechnology, Dairy Research Institute, Bright Dairy & Food Co., Ltd., Shanghai 200436, China;
- School of Food Science and Technology, Jiangnan University, Wuxi 214122, China;
- Correspondence:
| | - Xin-Lin Wei
- School of Agriculture and Biology, Shanghai Jiaotong University, Shanghai 200240, China;
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Abstract
Chemometrics play a critical role in biosensors-based detection, analysis, and diagnosis. Nowadays, as a branch of artificial intelligence (AI), machine learning (ML) have achieved impressive advances. However, novel advanced ML methods, especially deep learning, which is famous for image analysis, facial recognition, and speech recognition, has remained relatively elusive to the biosensor community. Herein, how ML can be beneficial to biosensors is systematically discussed. The advantages and drawbacks of most popular ML algorithms are summarized on the basis of sensing data analysis. Specially, deep learning methods such as convolutional neural network (CNN) and recurrent neural network (RNN) are emphasized. Diverse ML-assisted electrochemical biosensors, wearable electronics, SERS and other spectra-based biosensors, fluorescence biosensors and colorimetric biosensors are comprehensively discussed. Furthermore, biosensor networks and multibiosensor data fusion are introduced. This review will nicely bridge ML with biosensors, and greatly expand chemometrics for detection, analysis, and diagnosis.
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Affiliation(s)
- Feiyun Cui
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
| | - Yun Yue
- Department of Electrical & Computer Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, United States
| | - Yi Zhang
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Ziming Zhang
- Department of Electrical & Computer Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, United States
| | - H. Susan Zhou
- Department of Chemical Engineering, Worcester Polytechnic Institute, 100 Institute Road, Worcester, Massachusetts 01609, United States
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He Z, Yin H, Chang CC, Wang G, Liang X. Interfacing DNA with Gold Nanoparticles for Heavy Metal Detection. BIOSENSORS 2020; 10:E167. [PMID: 33172098 PMCID: PMC7694790 DOI: 10.3390/bios10110167] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/02/2020] [Accepted: 11/04/2020] [Indexed: 12/12/2022]
Abstract
The contamination of heavy metals (e.g., Hg, Pb, Cd and As) poses great risks to the environment and human health. Rapid and simple detection of heavy metals of considerable toxicity in low concentration levels is an important task in biological and environmental analysis. Among the many convenient detection methods for heavy metals, DNA-inspired gold nanoparticles (DNA-AuNPs) have become a well-established approach, in which assembly/disassembly of AuNPs is used for colorimetric signaling of the recognition event between DNA and target heavy metals at the AuNP interface. This review focuses on the recent efforts of employing DNA to manipulate the interfacial properties of AuNPs, as well as the major advances in the colorimetric detection of heavy metals. Beginning with the introduction of the fundamental aspects of DNA and AuNPs, three main strategies of constructing DNA-AuNPs with DNA binding-responsive interface are discussed, namely, crosslinking, electrostatic interaction and base pair stacking. Then, recent achievements in colorimetric biosensing of heavy metals based on manipulation of the interface of DNA-AuNPs are surveyed and compared. Finally, perspectives on challenges and opportunities for future research in this field are provided.
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Affiliation(s)
- Zhiyu He
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (Z.H.); (H.Y.); (X.L.)
| | - Huiling Yin
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (Z.H.); (H.Y.); (X.L.)
| | - Chia-Chen Chang
- Department of Medical Biotechnology and Laboratory Sciences, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan;
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 33302, Taiwan
| | - Guoqing Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (Z.H.); (H.Y.); (X.L.)
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
| | - Xingguo Liang
- College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China; (Z.H.); (H.Y.); (X.L.)
- Laboratory for Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266237, China
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Antiochia R. Developments in biosensors for CoV detection and future trends. Biosens Bioelectron 2020; 173:112777. [PMID: 33189015 PMCID: PMC7591947 DOI: 10.1016/j.bios.2020.112777] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 10/24/2020] [Accepted: 10/27/2020] [Indexed: 12/24/2022]
Abstract
This review summarizes the state of art of biosensor technology for Coronavirus (CoV) detection, the current challenges and the future perspectives. Three categories of affinity-based biosensors (ABBs) have been developed, depending on their transduction mechanism, namely electrochemical, optical and piezoelectric biosensors. The biorecognition elements include antibodies and DNA, which undergo important non-covalent binding interactions, with the formation of antigen-antibody and ssDNA/oligonucleotide-complementary strand complexes in immuno- and DNA-sensors, respectively. The analytical performances, the advantages and drawbacks of each type of biosensor are highlighted, discussed, and compared to traditional methods. It is hoped that this review will encourage scientists and academics to design and develop new biosensing platforms for point-of-care (POC) diagnostics to manage the coronavirus disease 2019 (COVID-19) pandemic, providing interesting reference for future studies.
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Affiliation(s)
- Riccarda Antiochia
- Department of Chemistry and Drug Technologies, Sapienza University of Rome, P.le Aldo Moro 5, 00185, Rome, Italy.
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41
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Lee JU, Kim S, Sim SJ. SERS-based Nanoplasmonic Exosome Analysis: Enabling Liquid Biopsy for Cancer Diagnosis and Monitoring Progression. BIOCHIP JOURNAL 2020. [DOI: 10.1007/s13206-020-4301-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Chang M, Song T, Liu X, Lin Q, He B, Ren J. Cellulose-based Biosensor for Bio-molecules Detection in Medical Diagnosis: A Mini-Review. Curr Med Chem 2020; 27:4593-4612. [DOI: 10.2174/0929867327666200221145543] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/26/2018] [Accepted: 04/01/2019] [Indexed: 12/11/2022]
Abstract
Background::
Biosensors are widely applied for the detection of bio-molecules in blood
glucose , cholesterol, and gene. Cellulose as the most dominating natural polymer has attracted
more and more interest, especially in the field of medicine such as advanced medical diagnosis.
Cellulose could endow biosensors with improved biocompatibility, biodegradability and nontoxicity,
which could help in medical diagnosis. This mini-review summarizes the current development
of cellulose-based biosensors as well as their applications in medical diagnosis in recent
years.
Methods:
After reviewing recent years’ publications we can say that, there are several kinds of
cellulose used in biosensors including different cellulose derivatives, bacterial cellulose and nanocellulose.
Different types of cellulose-based biosensors, such as membrane, nano-cellulose and
others were briefly described in addition to the detection principle. Cellulose-based biosensors
were summarized as in the previous papers. The description of various methods used for preparing
cellulose-based biosensors was also provided.
Results:
Cellulose and its derivatives with their unique chemical structure proved to be versatile
materials providing a good platform for achieving immobilizing bioactive molecules in biosensors.
These cellulose-based biosensors possess various desirable properties such as accuracy, sensitivity,
convenience, low cost and fast response. Among them, cellulose paper-based biosensors
have the advantages of low cost and easy operation. Nano-cellulose has unique properties such as
a large aspect ratio, good dispersing ability and high absorption capacity.
Conclusion:
Cellulose displays a promising application in biosensors which could be used to detect
different bio-molecules such as glucose, lactate, urea, gene, cell, amino acid, cholesterol, protein
and hydroquinone. In future, the attention will be focused on designing miniaturized, multifunctional,
intelligent and integrated biosensors. Creation of low cost and environmentally
friendly biosensors is also very important.
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Affiliation(s)
- Minmin Chang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Tao Song
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xinxin Liu
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Qixuan Lin
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Bei He
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Junli Ren
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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Jung W, Uddin MJ, Namkoong K, Chung W, Kim JH, Shim JS. Toward a disposable low-cost LOC device: heterogeneous polymer micro valve and pump fabricated by UV/ozone-assisted thermal fusion bonding. RSC Adv 2020; 10:28390-28396. [PMID: 35519138 PMCID: PMC9055662 DOI: 10.1039/d0ra03830j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/23/2020] [Indexed: 12/26/2022] Open
Abstract
Herein, a heterogeneous polymer micro valve and pump with a polypropylene (PP) membrane was developed in a low-cost manner via UV/ozone-assisted thermal fusion bonding. The proposed fabrication technique allowed for a geometrically selective bonding; consequently, the membrane was prevented from bonding with the valve seat of the diaphragm micro-valve, without patterning a protection layer or introducing an additional structure. The developed device withstands 480 kPa of static pressure and up to 350 kPa of a vibration pressure, providing sufficient bonding strength for microfluidic actuations. The fabricated micro valve and pump are fully characterized and compared with a poly(dimethylsiloxane) (PDMS) membrane glass device, showing comparable valving and pumping performance. As a result, the robust PP membrane micro valve and pump are simply implemented in a facile manner, and demonstrated excellent performance, which is highly desirable for mass production of disposable lab-on-a-chip (LOC) devices. Herein, a heterogeneous polymer micro valve and pump with a polypropylene (PP) membrane was developed in a low-cost manner via UV/ozone-assisted thermal fusion bonding.![]()
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Affiliation(s)
- Wonjong Jung
- Healthcare Sensor Lab., Device Research Centre, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd. Suwon Gyeonggi-do 16678 Republic of Korea
| | - M Jalal Uddin
- Bio-IT Convergence Lab., Department of Electronics and Convergence Engineering, Kwangwoon University Seoul 01897 Republic of Korea .,Department of Electrical and Electronic Engineering, Islamic University Kushtia-7003 Bangladesh
| | - Kak Namkoong
- Healthcare Sensor Lab., Device Research Centre, Samsung Advanced Institute of Technology (SAIT), Samsung Electronics Co., Ltd. Suwon Gyeonggi-do 16678 Republic of Korea
| | - Wonseok Chung
- BioNano Health Guard Research Centre Daejeon 34141 Republic of Korea
| | - Joon-Ho Kim
- Sensor Lab., Smart Device Team, Samsung Research, Samsung Electronics Co., Ltd. Seoul 06765 Republic of Korea +82-10-41213075
| | - Joon S Shim
- Bio-IT Convergence Lab., Department of Electronics and Convergence Engineering, Kwangwoon University Seoul 01897 Republic of Korea
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Khan MA, Zhu Y, Yao Y, Zhang P, Agrawal A, Reece PJ. Impact of metal crystallinity-related morphologies on the sensing performance of plasmonic nanohole arrays. NANOSCALE 2020; 12:7577-7585. [PMID: 32073105 DOI: 10.1039/d0nr00619j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Plasmonic nanohole arrays for biosensing applications have attracted tremendous attention because of their flexibility in optical signature design, high multiplexing capabilities, simple optical alignment setup, and high sensitivity. The quality of the metal film, including metal crystallinity and surface roughness, plays an important role in determining the sensing performance because the interaction between free electrons in the metal and incident light is strongly influenced by the metal surface morphology. We systematically investigated the influence of metal crystallinity-related morphologies on the sensing performance of plasmonic nanohole arrays after different metal deposition processes. We utilised several non-destructive nanoscale surface characterisation techniques to perform a quantitative and comparative analysis of the Au quality of the fabricated sensor. We found empirically how the surface roughness and grain sizes influence the permittivity of the Au film and thus the sensitivity of the fabricated sensor. Finally we confirmed that the deposition conditions that provide both low surface roughness and large metal grain sizes improve the sensitivity of the plasmonic sensor.
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Affiliation(s)
- Mansoor Ali Khan
- St George and Sutherland Clinical School, UNSW Sydney, NSW 2052, Australia.
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Real-Time Sensing with Patterned Plasmonic Substrates and a Compact Imager Chip. Methods Mol Biol 2020. [PMID: 31309475 DOI: 10.1007/978-1-4939-9616-2_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
Optical sensing is an important research field due to its proven ability to be extremely sensitive, nondestructive, and applicable to sensing a wide range of chemical, thermal, electric, or magnetic phenomena. Beyond traditional optical sensors that often rely on bulky setups, plasmonic nanostructures can offer many advantages based on their sensitivity, compact form, cost-effectiveness, multiplexing compatibility, and compatibility with many standard semiconductor nanofabrication techniques. In particular, plasmon-enhanced optical transmission through arrays of nanostructured holes has led to the development of a new generation of optical sensors. In this chapter we present a simple fabrication technique to use plasmonic nanostructures as compact sensors. We position the nanohole array, an LED illumination source, and a spacer layer directly on top of a standard complementary metal-oxide-semiconductor (CMOS) imager chip. This setup is a viable sensor platform in both liquid and gas environments. These devices could operate as low-cost sensors for environmental monitoring, security, food safety, or monitoring small-molecule binding to extract affinity information and binding constants.
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Cassedy A, Mullins E, O'Kennedy R. Sowing seeds for the future: The need for on-site plant diagnostics. Biotechnol Adv 2020; 39:107358. [DOI: 10.1016/j.biotechadv.2019.02.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 01/28/2019] [Accepted: 02/21/2019] [Indexed: 01/09/2023]
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Xiang W, Lv Q, Shi H, Xie B, Gao L. Aptamer-based biosensor for detecting carcinoembryonic antigen. Talanta 2020; 214:120716. [PMID: 32278406 DOI: 10.1016/j.talanta.2020.120716] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 12/30/2019] [Accepted: 01/03/2020] [Indexed: 02/07/2023]
Abstract
Carcinoembryonic antigen (CEA), as one of the common tumor markers, is a human glycoprotein involved in cell adhesion and is expressed during human fetal development. Since the birth of human, CEA expression is largely inhibited, with only low levels in the plasma of healthy adults. Generally, CEA will overexpressed in many cancers, including gastric, breast, ovarian, lung, and pancreatic cancers, especially colorectal cancer. As one of the important tumor markers, the detection of CEA has great significance in differential diagnosis, condition monitoring and therapeutic evaluation of diseases. Conventional CEA testing typically uses immunoassay methods. However, immunoassay methods require complex and expensive instruments and professional personnel to operate. Moreover, radioactive element may cause certain damage to the human body, which limits their wide application. In the past few years, biosensors, especially aptamer-based biosensors, have attracted extensive attention due to their high sensitivity, good selectivity, high accuracy, fast response and low cost. This review briefly classifies and describes the advance in optical and electrochemical aptamer biosensors for CEA detection, also explains and compares their advantages and disadvantages.
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Affiliation(s)
- Wenwen Xiang
- Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China
| | - Qiuxiang Lv
- Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China
| | - Haixia Shi
- P. E. Department of Jiangsu University, Zhenjiang, 212013, PR China
| | - Bing Xie
- Department of Obstetrics and Gynecology, The Fourth People's Hospital of Zhenjiang, Zhenjiang, 212000, PR China
| | - Li Gao
- Institute of Life Sciences, Jiangsu University, Zhenjiang, 212013, PR China.
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Brognara A, Mohamad Ali Nasri IF, Bricchi BR, Li Bassi A, Gauchotte-Lindsay C, Ghidelli M, Lidgi-Guigui N. Highly sensitive detection of estradiol by a SERS sensor based on TiO 2 covered with gold nanoparticles. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2020; 11:1026-1035. [PMID: 32733777 PMCID: PMC7372251 DOI: 10.3762/bjnano.11.87] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/02/2020] [Indexed: 05/07/2023]
Abstract
We propose the use of gold nanoparticles grown on the surface of nanoporous TiO2 films as surface-enhanced Raman scattering (SERS) sensors for the detection of 17β-estradiol. Gold deposition on top of a TiO2 surface leads to the formation of nanoparticles the plasmonic properties of which fulfil the requirements of a SERS sensor. The morphological and optical properties of the surface were investigated. Specifically, we demonstrate that the TiO2 background pressure during pulsed laser deposition and the annealing conditions offer control over the formation of Au nanoparticles with different sizes, shapes and distributions, yielding a versatile sensor. We have exploited the surface for the detection of 17β-estradiol, an emerging contaminant in environmental waters. We have found a limit of detection of 1 nM with a sensitivity allowing for a dynamic range of five orders of magnitude (up to 100 µM).
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Affiliation(s)
- Andrea Brognara
- Dipartimento di Energia, Laboratorio Materiali Micro e Nanostrutturati, Politecnico di Milano, via Ponzio 34/3, I-20133 Milano, Italy
- Department of Structure and Nano/-Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany
| | - Ili F Mohamad Ali Nasri
- James Watt School of Engineering, Rankine Building, Oakfield Avenue, G12 8LT, University of Glasgow, Glasgow, United Kingdom
| | - Beatrice R Bricchi
- Dipartimento di Energia, Laboratorio Materiali Micro e Nanostrutturati, Politecnico di Milano, via Ponzio 34/3, I-20133 Milano, Italy
| | - Andrea Li Bassi
- Dipartimento di Energia, Laboratorio Materiali Micro e Nanostrutturati, Politecnico di Milano, via Ponzio 34/3, I-20133 Milano, Italy
| | - Caroline Gauchotte-Lindsay
- James Watt School of Engineering, Rankine Building, Oakfield Avenue, G12 8LT, University of Glasgow, Glasgow, United Kingdom
| | - Matteo Ghidelli
- Dipartimento di Energia, Laboratorio Materiali Micro e Nanostrutturati, Politecnico di Milano, via Ponzio 34/3, I-20133 Milano, Italy
- Department of Structure and Nano/-Micromechanics of Materials, Max-Planck-Institut für Eisenforschung GmbH, Max-Planck-Straße 1, 40237 Düsseldorf, Germany
- now at Laboratoire des Sciences des Procédés et des Matériaux (LSPM), CNRS, Université Sorbonne Paris Nord, 93430, Villetaneuse, France
| | - Nathalie Lidgi-Guigui
- now at Laboratoire des Sciences des Procédés et des Matériaux (LSPM), CNRS, Université Sorbonne Paris Nord, 93430, Villetaneuse, France
- CSPBAT, UMR 7244, Université Sorbonne Paris Nord, 93430 Villetaneuse, France
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Biological Biosensors for Monitoring and Diagnosis. ENVIRONMENTAL AND MICROBIAL BIOTECHNOLOGY 2020. [PMCID: PMC7340096 DOI: 10.1007/978-981-15-2817-0_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Quantification and detection of various contaminants in the ecosystem have become critically important in the past few decades due to their exhaustive use in soil and aquatic ecosystems. The contamination by both organic and inorganic contaminants in the ecosystem has drawn attention due to their persistence, biological accumulation, and toxicity. Organic contaminants reach the air, water, food, soil, and other systems through drift mechanism and have detrimental effect on various life systems after entering the food chain, thus interfering the normal biological process of the ecosystem. Inorganic contaminants have less solubility, primarily get adsorbed, and accumulate on lower sediments. The sources of both organic and inorganic contaminants include anthropogenic activities which dispose industrial and sewage effluent directly into water bodies. Most of the contaminants are very much toxic and have tumorigenic, carcinogenic, and mutagenic effect on various life-forms. Biosensors have various prospective and existing applications in the detection of these compounds in the environment by transducing a signal. It also has immense applications in the detection of different contaminants in the food industry, environmental monitoring, disease diagnosis, etc. where reliable and precise analyses are required. This chapter points out a comprehensive glimpse on different biosensors and their characteristics, operating principles, and their designs, based on transduction types and biological components. Efforts have been made to summarize various applications of biosensors in food industry, environmental monitoring, drug delivery systems, and clinical diagnostics etc.
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Long F, Li W, Song D, Han X, Zhou Y, Fang S, Xu W, Liu J, Zhu A. Portable and automated fluorescence microarray biosensing platform for on-site parallel detection and early-warning of multiple pollutants. Talanta 2019; 210:120650. [PMID: 31987168 DOI: 10.1016/j.talanta.2019.120650] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 12/08/2019] [Accepted: 12/14/2019] [Indexed: 01/26/2023]
Abstract
The portable and automated fluorescence microarray biosensing platform (FMB) that employed a compact hybrid optical structure, microfluidics, and microarray biosensors was constructed for on-site parallel detection of multiple analytes. In the FMB, a hybrid optical structure that composed of a 1 × 4 single mode fiber optic coupler, four fiber optic switches, a single-multi mode fiber optic bundle coupler was at the first time developed for the transmission of the excitation light and the collection and transmission of multi-channel fluorescence signals. Through the control of fiber optic switches, the parallel fluorescence assay of four channels could be achieved using only one excitation light and one photodiode detector on the basis of the time-resolved effect. This optical design not only greatly increased the efficiency of light transmission and fluorescence collection and detection sensitivity of the FMB, but also allows the miniaturization and portability of the whole system because of few optical separation elements used and no requirement of rigorous optical alignment. Taking Microcystin-LR (MC-LR), 2,4-D, atrazine (ATZ), and bisphenol A (BPA) for example, the application potential of the FMB to rapidly and parallelly detect four typical pollutants in real water with high sensitivity and specificity was demonstrated. The limits of detection of MC-LR, 2,4-D, ATZ, and BPA were 0.04 μg/L, 0.09 μg/L, 0.02 μg/L, and 0.03 μg/L, respectively. The FMB could also achieve early-warning of pollutants thanks to its ability of rapidity, high-frequency, and multiple-analyte detection. The FMB has significant implications as a multiplexable, portable, rapid, and quantitative detection platform for pollution accidents and water quality management to satisfy the increasing demands of alerting and protecting civilians.
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Affiliation(s)
- Feng Long
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China.
| | - Wei Li
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Dan Song
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Xiangzhi Han
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Yue Zhou
- Research Institute of Chemical Defense, Beijing, 102205, China
| | - Shunyan Fang
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Wenjuan Xu
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Jiayao Liu
- School of Environment and Natural Resources, Renmin University of China, Beijing, 100872, China
| | - Anna Zhu
- Research Institute of Chemical Defense, Beijing, 102205, China; State Key Laboratory of NBC Protection FOR Civilian, Beijing, 102205, China
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