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Pasquardini L, Cennamo N, Arcadio F, Perri C, Chiodi A, D'agostino G, Zeni L. Immuno-SPR biosensor for the detection of Brucella abortus. Sci Rep 2023; 13:22832. [PMID: 38129569 PMCID: PMC10739931 DOI: 10.1038/s41598-023-50344-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
A proof of principle biosensor for the Brucella abortus recognition onsite is presented. The system is based on a plasmonic optical fiber probe functionalized with an oriented antibody layer immobilized on a short polyethyleneglycol (PEG) interface through carbodiimide chemistry and protein G as an intermediate layer. The biosensor is inserted in a holder built in 3D printing technology, obtaining a custom holder useful for housing the sample to be measured and the equipment. The removable sensor chip is a low-cost Surface Plasmon Resonance (SPR) platform based on D-shaped plastic optical fibers (POFs), built-in in 3D printed connectors, used here for the first time to detect bacteria via a bio-receptor layer specific for its membrane protein. The performances of the biosensor in Brucella abortus recognition are tested by using two different SPR-POF probes combined with the same bio-receptor layer. The best sensor configuration has presented a sensitivity at low concentrations of one order of magnitude greater than the other. A limit of detection (LoD) of 2.8 bacteria/mL is achieved well competitive with other systems but without the need for amplification or special sample treatments. Specificity has been tested using Salmonella bacteria, and reproducibility, regenerability and stability are moreover evaluated. These experimental results pave the way for building an efficient and specific biosensor system for Brucella abortus detection onsite and in a few minutes. Moreover, the proposed POF-based SPR biosensor device, with respect to the already available technologies, could be a Point-of-care-test (POCT), simple to use, small-size and portable, low-cost, don't necessary of a microfluidic system, and can be connected to the Internet (IoT).
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Affiliation(s)
- Laura Pasquardini
- Indivenire Srl, Via Sommarive 18, 38123, Trento, Italy.
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031, Aversa, Italy.
| | - Nunzio Cennamo
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031, Aversa, Italy
| | - Francesco Arcadio
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031, Aversa, Italy
| | - Chiara Perri
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031, Aversa, Italy
- Moresense Srl, Filarete Foundation, Viale Ortles 22/4, 20139, Milan, Italy
| | - Alessandro Chiodi
- Moresense Srl, Filarete Foundation, Viale Ortles 22/4, 20139, Milan, Italy
| | | | - Luigi Zeni
- Department of Engineering, University of Campania "Luigi Vanvitelli", Via Roma 29, 81031, Aversa, Italy.
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Pasquardini L, Vanzetti L, Canteri R, Cennamo N, Arcadio F, Perri C, D'Agostino G, Pitruzzella R, Rovida R, Chiodi A, Zeni L. Optimization of the immunorecognition layer towards Brucella sp. on gold surface for SPR platform. Colloids Surf B Biointerfaces 2023; 231:113577. [PMID: 37797466 DOI: 10.1016/j.colsurfb.2023.113577] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 08/08/2023] [Accepted: 09/30/2023] [Indexed: 10/07/2023]
Abstract
A successful immunosensor is characterized by a proper antibody immobilization and orientation in order to enhance the antigen recognition. In this work, a thorough characterization of the antibody functionalized gold surface is performed to set up the best conditions to implement in an optical platform for the detection of Brucella sp. Two different strategies are evaluated, based on a random immobilization and on an oriented one: a direct antibody immobilization on carboxylic mixed polyethylene (PEG) self-assembled monolayer (SAM) or only carboxylic PEG SAM interface is compared to an oriented immobilization on a layer of protein G on the same PEG SAM interfaces. X-ray Photoelectron Spectroscopy (XPS), Time of Flight Secondary Ion Mass Spectrometry (ToF-SIMS) and contact angle (CA) are used to chemically characterize the gold functionalized surface and ToF-SIMS is also used to confirm the right antibody orientation. Optical characterization is applied to monitor the functionalization steps and fluorescence measurements are used to set up the proper experimental conditions and also to detect Brucella bacteria on the surface. Best results are obtained with a 10 ng/μl incubation solution of antibody immobilized, in an oriented way, on a mixed PEG SAM interface.
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Affiliation(s)
| | - Lia Vanzetti
- Fondazione Bruno Kessler (FBK), Micro Nano Facility (MNF), Via Sommarive 18, 38123 Trento, Italy
| | - Roberto Canteri
- Fondazione Bruno Kessler (FBK), Micro Nano Facility (MNF), Via Sommarive 18, 38123 Trento, Italy
| | - Nunzio Cennamo
- Department of Engineering, University of Campania "L. Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| | - Francesco Arcadio
- Department of Engineering, University of Campania "L. Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| | - Chiara Perri
- Moresense srl, Filarete Foundation, Viale Ortles 22/4, 20139 Milano, Italy
| | | | - Rosalba Pitruzzella
- Department of Engineering, University of Campania "L. Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| | - Riccardo Rovida
- Department of Engineering, University of Campania "L. Vanvitelli", Via Roma 29, 81031 Aversa, Italy
| | - Alessandro Chiodi
- Moresense srl, Filarete Foundation, Viale Ortles 22/4, 20139 Milano, Italy
| | - Luigi Zeni
- Department of Engineering, University of Campania "L. Vanvitelli", Via Roma 29, 81031 Aversa, Italy.
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Cai J, Liu Y, Shu X. Long-Period Fiber Grating Sensors for Chemical and Biomedical Applications. SENSORS (BASEL, SWITZERLAND) 2023; 23:542. [PMID: 36617140 PMCID: PMC9823881 DOI: 10.3390/s23010542] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 06/17/2023]
Abstract
Optical fiber biosensors (OFBS) are being increasingly proposed due to their intrinsic advantages over conventional sensors, including their compactness, potential remote control and immunity to electromagnetic interference. This review systematically introduces the advances of OFBS based on long-period fiber gratings (LPFGs) for chemical and biomedical applications from the perspective of design and functionalization. The sensitivity of such a sensor can be enhanced by designing the device working at or near the dispersion turning point, or working around the mode transition, or their combination. In addition, several common functionalization methods are summarized in detail, such as the covalent immobilization of 3-aminopropyltriethoxysilane (APTES) silanization and graphene oxide (GO) functionalization, and the noncovalent immobilization of the layer-by-layer assembly method. Moreover, reflective LPFG-based sensors with different configurations have also been introduced. This work aims to provide a comprehensive understanding of LPFG-based biosensors and to suggest some future directions for exploration.
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Affiliation(s)
| | | | - Xuewen Shu
- Wuhan National Laboratory for Optoelectronics & School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
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Manessis G, Gelasakis AI, Bossis I. Point-of-Care Diagnostics for Farm Animal Diseases: From Biosensors to Integrated Lab-on-Chip Devices. BIOSENSORS 2022; 12:455. [PMID: 35884258 PMCID: PMC9312888 DOI: 10.3390/bios12070455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 02/06/2023]
Abstract
Zoonoses and animal diseases threaten human health and livestock biosecurity and productivity. Currently, laboratory confirmation of animal disease outbreaks requires centralized laboratories and trained personnel; it is expensive and time-consuming, and it often does not coincide with the onset or progress of diseases. Point-of-care (POC) diagnostics are rapid, simple, and cost-effective devices and tests, that can be directly applied on field for the detection of animal pathogens. The development of POC diagnostics for use in human medicine has displayed remarkable progress. Nevertheless, animal POC testing has not yet unfolded its full potential. POC devices and tests for animal diseases face many challenges, such as insufficient validation, simplicity, and portability. Emerging technologies and advanced materials are expected to overcome some of these challenges and could popularize animal POC testing. This review aims to: (i) present the main concepts and formats of POC devices and tests, such as lateral flow assays and lab-on-chip devices; (ii) summarize the mode of operation and recent advances in biosensor and POC devices for the detection of farm animal diseases; (iii) present some of the regulatory aspects of POC commercialization in the EU, USA, and Japan; and (iv) summarize the challenges and future perspectives of animal POC testing.
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Affiliation(s)
- Georgios Manessis
- Laboratory of Anatomy and Physiology of Farm Animals, Department of Animal Science, Agricultural University of Athens (AUA), Iera Odos 75 Str., 11855 Athens, Greece; (G.M.); (A.I.G.)
| | - Athanasios I. Gelasakis
- Laboratory of Anatomy and Physiology of Farm Animals, Department of Animal Science, Agricultural University of Athens (AUA), Iera Odos 75 Str., 11855 Athens, Greece; (G.M.); (A.I.G.)
| | - Ioannis Bossis
- Laboratory of Animal Husbandry, Department of Animal Production, School of Agriculture, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Bu S, Wang K, Li Z, Wang C, Hao Z, Liu W, Wan J. An electrochemical biosensor based on methylene blue-loaded nanocomposites as signal-amplifying tags to detect pathogenic bacteria. Analyst 2021; 145:4328-4334. [PMID: 32367088 DOI: 10.1039/d0an00470g] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A sandwich-type electrochemical biosensor was successfully constructed for the sensitive detection of pathogenic bacteria. In this biosensor platform, methylene blue (MB) organic-inorganic nanocomposites (MB@MI) were synthesized from magainin I (MI, antimicrobial peptide specific to Escherichia coli O157:H7), Cu3(PO4)2 and MB via a one-pot method, and were explored as a novel electrochemical signal label of biosensors generating amplified electrochemical signals by differential pulse voltammetry (DPV). E. coli O157:H7 specifically sandwich bound to the aptamers on the electrode surface and MB@MI nanocomposites, and the changes in the current signal generated on the electrode surface were used for the quantitative determination of E. coli O157:H7. Under optimum conditions, the proposed biosensor showed excellent performance with a wide linear range of 102-107 CFU mL-1 and a low detection limit of 32 CFU mL-1, featuring favorable selectivity, repeatability and stability. According to the experiments conducted on real samples, the proposed approach is capable of detecting pathogenic bacteria in clinical diagnostics.
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Affiliation(s)
- Shengjun Bu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Kuiyu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China. and Southern Laboratory of Ocean Science and Engineering, School of Chemical Engineering and Technology, Sun Yat-sen University, Guangdong, 519082, China
| | - Zhongyi Li
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Chengyu Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Zhuo Hao
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Wensen Liu
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
| | - Jiayu Wan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun, 130122, China.
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Rippa M, Castagna R, Sagnelli D, Vestri A, Borriello G, Fusco G, Zhou J, Petti L. SERS Biosensor Based on Engineered 2D-Aperiodic Nanostructure for In-Situ Detection of Viable Brucella Bacterium in Complex Matrix. NANOMATERIALS 2021; 11:nano11040886. [PMID: 33807185 PMCID: PMC8067257 DOI: 10.3390/nano11040886] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/21/2021] [Accepted: 03/27/2021] [Indexed: 11/16/2022]
Abstract
Brucella is a foodborne pathogen globally affecting both the economy and healthcare. Surface Enhanced Raman Spectroscopy (SERS) nano-biosensing can be a promising strategy for its detection. We combined high-performance quasi-crystal patterned nanocavities for Raman enhancement with the use of covalently immobilized Tbilisi bacteriophages as high-performing bio-receptors. We coupled our efficient SERS nano-biosensor to a Raman system to develop an on-field phage-based bio-sensing platform capable of monitoring the target bacteria. The developed biosensor allowed us to identify Brucella abortus in milk by our portable SERS device. Upon bacterial capture from samples (104 cells), a signal related to the pathogen recognition was observed, proving the concrete applicability of our system for on-site and in-food detection.
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Affiliation(s)
- Massimo Rippa
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello” of CNR, 80078 Pozzuoli, Italy; (M.R.); (R.C.); (D.S.); (G.F.)
| | - Riccardo Castagna
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello” of CNR, 80078 Pozzuoli, Italy; (M.R.); (R.C.); (D.S.); (G.F.)
| | - Domenico Sagnelli
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello” of CNR, 80078 Pozzuoli, Italy; (M.R.); (R.C.); (D.S.); (G.F.)
| | - Ambra Vestri
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello” of CNR, 80078 Pozzuoli, Italy; (M.R.); (R.C.); (D.S.); (G.F.)
- Correspondence: (A.V.); (L.P.)
| | - Giorgia Borriello
- Istituto Zooprofilattico Sperimentale del Mezzogiorno (IZSM), 80055 Portici, Italy;
| | - Giovanna Fusco
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello” of CNR, 80078 Pozzuoli, Italy; (M.R.); (R.C.); (D.S.); (G.F.)
- Istituto Zooprofilattico Sperimentale del Mezzogiorno (IZSM), 80055 Portici, Italy;
| | - Jun Zhou
- Institute of Photonics, Faculty of Science, Ningbo University, Ningbo 315211, China;
| | - Lucia Petti
- Institute of Applied Sciences and Intelligent Systems “E. Caianiello” of CNR, 80078 Pozzuoli, Italy; (M.R.); (R.C.); (D.S.); (G.F.)
- Correspondence: (A.V.); (L.P.)
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