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Montoro-Leal P, Frías IAM, Vereda Alonso E, Errachid A, Jaffrezic-Renault N. A Molecularly Imprinted Polypyrrole/GO@Fe3O4 Nanocomposite Modified Impedimetric Sensor for the Routine Monitoring of Lysozyme. BIOSENSORS 2022; 12:bios12090727. [PMID: 36140112 PMCID: PMC9496344 DOI: 10.3390/bios12090727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 12/21/2022]
Abstract
Lysozyme (LYS) applications encompass anti-bacterial activity, analgesic, and anti-inflammatory effects. In this work, a porous framework that was based on the polymerization of pyrrole (PPy) in the presence of multi-functional graphene oxide/iron oxide composite (GO@Fe3O4) has been developed. Oxygen-containing and amine groups that were present in the nanocomposite were availed to assembly LYS as the molecularly imprinted polymer (MIP) template. The synthesized material (MIPPy/GO@Fe3O4) was electrodeposited on top of a gold microelectrode array. Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) were used to confirm the adequate preparation of GO@Fe3O4, and the characterization of the resulting molecularly imprinted electrochemical sensor (MIECS) was carried out by electrochemical impedance spectrometry (EIS), FT-IR analysis, and scanning electron microscopy (SEM). The impedimetric responses were analyzed mathematically by fitting to a Q(Q(RW)) equivalent circuit and quantitative determination of LYS was obtained in a linear range from 1 pg/mL to 0.1 µg/mL, presenting good precision (RSD ≈ 10%, n = 5) and low limit of detection (LOD = 0.009 pg/mL). The fabrication of this device is relatively simple, scalable, rapid, and economical, and the sensor can be used up to nine times without disintegration. The MIECS was successfully applied to the determination of LYS in fresh chicken egg white sample and in a commercial drug, resulting in a straightforward platform for the routine monitoring of LYS.
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Affiliation(s)
- Pablo Montoro-Leal
- Department of Analytical Chemistry, Faculty of Sciences, University of Málaga, 29016 Málaga, Spain
| | - Isaac A. M. Frías
- Institut des Sciences Analytiques, University of Lyon, 69100 Villeurbanne, France
| | - Elisa Vereda Alonso
- Department of Analytical Chemistry, Faculty of Sciences, University of Málaga, 29016 Málaga, Spain
- Correspondence:
| | - Abdelhamid Errachid
- Institut des Sciences Analytiques, University of Lyon, 69100 Villeurbanne, France
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Downs ML, McClure BA, Jayasena S, Ramachandran B, Krawitzky M, Ribeiro T, Wallace J, Tallman S, Mortola B. Development and Interlaboratory Evaluation of an LC-MS/MS Method for the Quantification of Lysozyme in Wine across Independent Instrument Platforms. J AOAC Int 2021; 105:433-441. [PMID: 34519763 DOI: 10.1093/jaoacint/qsab120] [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: 05/20/2021] [Revised: 08/11/2021] [Accepted: 08/30/2021] [Indexed: 11/13/2022]
Abstract
BACKGROUND Various processing aids and fining agents are used in winemaking to help improve sensory characteristics. Some of these materials may contain or be derived from allergenic foods, such as eggs. In order to ensure food safety and that products meet regulatory compliance, it is essential to have robust and effective analytical methods to verify the removal of allergenic proteins following their use. Current methods include immunoassays (ELISA) and mass spectrometry methods, which can target either whole foods or individual proteins, and provide either quantitative data or qualitative confirmation of proteins. Mass spectrometry methods offer the potential to test for multiple proteins within a single assay to improve cost and efficiency, whereas ELISA methods typically analyze for a single protein per assay. OBJECTIV This study focuses on the development of a LC-MS/MS quantitative method for lysozyme in white wine and compares performance across two laboratories utilizing two different instrument platforms. METHODS Lysozyme target peptides were selected by conducting bottom-up discovery proteomics. Candidate targets were evaluated using parallel reaction monitoring (PRM) or selected reaction monitoring (SRM) LC-MS/MS, depending on the instrument in each laboratory. Quantification of lysozyme was conducted using internal, stable-isotope-labeled synthetic peptide standards. RESULTS Three of eight candidate target peptides showed performance suitable for the final quantitative method. White wine spiked with 0.1 and 0.5 ppm lysozyme demonstrated quantitative recovery of 70-120%. While the PRM method delivered better repeatability, the SRM method gave higher quantitative recovery values. CONCLUSION A targeted LC-MS/MS method for quantification of lysozyme in white wine has been developed and deployed on two different MS instrument platforms in two laboratories. HIGHLIGHTS Both SRM and PRM targeted LC-MS/MS methodologies can be used for quantification of lysozyme in white wine. This study is among the first to evaluate an MS method for food allergen quantification in multiple laboratories.
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Affiliation(s)
- Melanie L Downs
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Food Innovation Center, 1901 North 21st Street, Lincoln, NE
| | | | - Shyamali Jayasena
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Food Innovation Center, 1901 North 21st Street, Lincoln, NE
| | - Bini Ramachandran
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Food Innovation Center, 1901 North 21st Street, Lincoln, NE
| | - Michael Krawitzky
- Food Allergy Research and Resource Program, Department of Food Science and Technology, University of Nebraska-Lincoln, Food Innovation Center, 1901 North 21st Street, Lincoln, NE
| | - Tony Ribeiro
- E & J Gallo Winery, 600 Yosemite Blvd, Modesto, CA
| | | | | | - Bill Mortola
- E & J Gallo Winery, 600 Yosemite Blvd, Modesto, CA
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Zhang X, Tang B, Li Y, Liu C, Jiao P, Wei Y. Molecularly Imprinted Magnetic Fluorescent Nanocomposite-Based Sensor for Selective Detection of Lysozyme. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1575. [PMID: 34203859 PMCID: PMC8232576 DOI: 10.3390/nano11061575] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 12/26/2022]
Abstract
A new strategy for the design and construction of molecularly imprinted magnetic fluorescent nanocomposite-based-sensor is proposed. This multifunctional nanocomposite exhibits the necessary optics, magnetism and biocompatibility for use in the selective fluorescence detection of lysozyme. The magnetic fluorescent nanocomposites are prepared by combining carboxyl- functionalized Fe3O4 magnetic nanoparticles with l-cysteine-modified zinc sulfide quantum dots (MNP/QDs). Surface molecular imprinting technology was employed to coat the lysozyme molecularly imprinted polymer (MIP) layer on the MNP/QDs to form a core-shell structure. The molecularly imprinted MNP/QDs (MNP/QD@MIPs) can rapidly separate the target protein and then use fluorescence sensing to detect the protein; this reduces the background interference, and the selectivity and sensitivity of the detection are improved. The molecularly imprinted MNP/QDs sensor presented good linearity over a lysozyme concentration range from 0.2 to 2.0 μM and a detection limit of 4.53 × 10-3 μM for lysozyme. The imprinting factor of the MNP/QD@MIPs was 4.12, and the selectivity coefficient ranged from 3.19 to 3.85. Furthermore, the MNP/QD@MIPs sensor was applied to detect of lysozyme in human urine and egg white samples with recoveries of 95.40-103.33%. Experimental results showed that the prepared MNP/QD@MIPs has potential for selective magnetic separation and fluorescence sensing of target proteins in biological samples.
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Affiliation(s)
- Xin Zhang
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China; (Y.L.); (C.L.); (P.J.); (Y.W.)
| | - Bo Tang
- Key Laboratory of Molecular Medicine and Biotherapy, School of Life Science, Beijing Institute of Technology, Beijing 100081, China;
| | - Yansong Li
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China; (Y.L.); (C.L.); (P.J.); (Y.W.)
| | - Chengbin Liu
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China; (Y.L.); (C.L.); (P.J.); (Y.W.)
| | - Pengfei Jiao
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China; (Y.L.); (C.L.); (P.J.); (Y.W.)
| | - Yuping Wei
- School of Life Science and Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China; (Y.L.); (C.L.); (P.J.); (Y.W.)
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FRET-Based Aptasensor for the Selective and Sensitive Detection of Lysozyme. SENSORS 2020; 20:s20030914. [PMID: 32050422 PMCID: PMC7038949 DOI: 10.3390/s20030914] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/03/2020] [Accepted: 02/05/2020] [Indexed: 12/12/2022]
Abstract
Lysozyme is a conserved antimicrobial enzyme and has been cited for its role in immune modulation. Increase in lysozyme concentration in body fluids is also regarded as an early warning of some diseases such as Alzheimer’s, sarcoidosis, Crohn’s disease, and breast cancer. Therefore, a method for a sensitive and selective detection of lysozyme can benefit many different areas of research. In this regard, several aptamers that are specific to lysozyme have been developed, but there is still a lack of a detection method that is sensitive, specific, and quantitative. In this work, we demonstrated a single-molecule fluorescence resonance energy transfer (smFRET)-based detection of lysozyme using an aptamer sensor (also called aptasensor) in which the binding of lysozyme triggers its conformational switch from a low-FRET to high-FRET state. Using this strategy, we demonstrated that the aptasensor is sensitive down to 2.3 picomoles (30 nM) of lysozyme with a dynamic range extending to ~2 µM and has little to no interference from similar biomolecules. The smFRET approach used here requires a dramatically small amount of aptasensor (~3000-fold less as compared to typical bulk fluorescence methods), and it is cost effective compared to enzymatic and antibody-based approaches. Additionally, the aptasensor can be readily regenerated in situ via a process called toehold mediated strand displacement (TMSD). The FRET-based aptasensing of lysozyme that we developed here could be implemented to detect other protein biomarkers by incorporating protein-specific aptamers without the need for changing fluorophore-labeled DNA strands.
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Titoiu AM, Porumb R, Fanjul‐Bolado P, Epure P, Zamfir M, Vasilescu A. Detection of Allergenic Lysozyme during Winemaking with an Electrochemical Aptasensor. ELECTROANAL 2019. [DOI: 10.1002/elan.201900333] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ana Maria Titoiu
- International Centre of Biodynamics 1B Intrarea Portocalelor 060101 Bucharest Romania
| | - Roxana Porumb
- Research and Development Institute for Vine and Wine 2 Valea Mantei Valea Calugareasca, Prahova Romania
| | - Pablo Fanjul‐Bolado
- Metrohm Dropsens, S.L.,Ed.CEEI, Parque Tecnológico de Asturias 33428 - Llanera, Asturias Spain
| | - Petru Epure
- Epi Sistem SRL 145 Blv Brasovului, Sacele 500295 Brasov Romania
| | - Medana Zamfir
- Institute of Biology 296 Splaiul Independentei 060031 Bucharest Romania
| | - Alina Vasilescu
- International Centre of Biodynamics 1B Intrarea Portocalelor 060101 Bucharest Romania
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Fu F, Li L, Luo Q, Li Q, Guo T, Yu M, Song Y, Song E. Selective and sensitive detection of lysozyme based on plasmon resonance light-scattering of hydrolyzed peptidoglycan stabilized-gold nanoparticles. Analyst 2019; 143:1133-1140. [PMID: 29392248 DOI: 10.1039/c7an01570d] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The simple, economic, rapid, and sensitive detection of lysozyme has an important significance for disease diagnosis since it is a potential biomarker. In this work, a new detection strategy for lysozyme was developed based on the change of the plasmon resonance light scattering (PRLS) signal of peptidoglycan stabilized gold nanoparticles (PGN-AuNPs). Peptidoglycan (PGN) was employed as a stabilizer to prepare PGN-AuNPs which have the properties of a uniform particle size, good stability, and a specific biological function. Due to the specific cleavage of lysozyme to PGN, a very simple specific and sensitive detection method for lysozyme was developed based on the PRLS signal of PGN-AuNPs after mixing with lysozyme for 1.5 h. The enhanced PRLS signals (ΔIPRLS, at 560 nm) increased linearly with increasing lysozyme in the range 5 nM to 1600 nM with the detection limit down to 2.32 nM (ΔIPRLS = 41.6397 + 0.5332c, R = 0.9961). When the PGN-AuNP based method was applied to assay lysozyme in authentic human serum samples, the recovery efficiency was 106.76-119.32% with the relative standard deviations in the range of 0.14-3.11%, showing good feasibility. The PGN-AuNP based method for lysozyme assay developed here is simple, rapid, selective, and sensitive, which is expected to provide a feasible new method for the diagnosis or prognosis of lysozyme-related diseases in a clinical setting.
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Affiliation(s)
- Fei Fu
- Key Laboratory of Luminescence and Real-Time Analytical Chemistry, Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing, 400715, China.
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Fischer C, Wessels H, Paschke-Kratzin A, Fischer M. Aptamers: Universal capture units for lateral flow applications. Anal Biochem 2017; 522:53-60. [PMID: 28111303 DOI: 10.1016/j.ab.2017.01.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 01/11/2017] [Accepted: 01/18/2017] [Indexed: 01/07/2023]
Abstract
The present work demonstrates the implementation of aptamers as capture molecules for a wide range of target classes in lateral flow assay applications. The targets were chosen in order to cover a wide range of target classes (small sized - metabolite, medium sized - protein, and large sized - whole cell/spore). For each target class one target molecule was selected as representative and appropriate aptamers were used for lateral flow assay development. The work points out that the implementation of aptamers as capture molecules in a universal lateral flow test platform was successful independent form target size. Furthermore, the limit of detection for p-aminohippuric acid in urine (200 ppm), lysozyme in white wine (20 ppm), and Alicyclobacillus spores in buffered orange juice (>8 CFU/mL) were determined using aptamers as capture molecules. The whole approach is considered as a proof of concept, regarding the ability of aptamers as an alternative to antibodies (in conjunction with directive 2010/63/EU on the protection of animals used for scientific purposes) in lateral flow applications.
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Affiliation(s)
- Christin Fischer
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Hauke Wessels
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Angelika Paschke-Kratzin
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany
| | - Markus Fischer
- Hamburg School of Food Science; Institute of Food Chemistry, University of Hamburg, Grindelallee 117, 20146 Hamburg, Germany.
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Costa J, Fernandes TJ, Villa C, P.P. Oliveira MB, Mafra I. Advances in Food Allergen Analysis. Food Saf (Tokyo) 2016. [DOI: 10.1002/9781119160588.ch9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Wessels H, Paschke-Kratzin A. New SPR-based methods for analysis of allergenic agents used in wine treatment. BIO WEB OF CONFERENCES 2016. [DOI: 10.1051/bioconf/20160704002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
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Morschheuser L, Wessels H, Pille C, Fischer J, Hünniger T, Fischer M, Paschke-Kratzin A, Rohn S. HPTLC-aptastaining - Innovative protein detection system for high-performance thin-layer chromatography. Sci Rep 2016; 6:26665. [PMID: 27220270 PMCID: PMC4879557 DOI: 10.1038/srep26665] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 05/03/2016] [Indexed: 02/07/2023] Open
Abstract
Protein analysis using high-performance thin-layer chromatography (HPTLC) is not commonly used but can complement traditional electrophoretic and mass spectrometric approaches in a unique way. Due to various detection protocols and possibilities for hyphenation, HPTLC protein analysis is a promising alternative for e.g., investigating posttranslational modifications. This study exemplarily focused on the investigation of lysozyme, an enzyme which is occurring in eggs and technologically added to foods and beverages such as wine. The detection of lysozyme is mandatory, as it might trigger allergenic reactions in sensitive individuals. To underline the advantages of HPTLC in protein analysis, the development of innovative, highly specific staining protocols leads to improved sensitivity for protein detection on HPTLC plates in comparison to universal protein derivatization reagents. This study aimed at developing a detection methodology for HPTLC separated proteins using aptamers. Due to their affinity and specificity towards a wide range of targets, an aptamer based staining procedure on HPTLC (HPTLC-aptastaining) will enable manifold analytical possibilities. Besides the proof of its applicability for the very first time, (i) aptamer-based staining of proteins is applicable on different stationary phase materials and (ii) furthermore, it can be used as an approach for a semi-quantitative estimation of protein concentrations.
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Affiliation(s)
- Lena Morschheuser
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Hauke Wessels
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Christina Pille
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Judith Fischer
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Tim Hünniger
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Markus Fischer
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Angelika Paschke-Kratzin
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
| | - Sascha Rohn
- University of Hamburg, Hamburg School of Food Science, Institute of Food Chemistry, Grindelallee 117, D-20146 Hamburg
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Bioanalytical methods for food allergy diagnosis, allergen detection and new allergen discovery. Bioanalysis 2016; 7:1175-90. [PMID: 26039813 DOI: 10.4155/bio.15.49] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
For effective monitoring and prevention of the food allergy, one of the emerging health problems nowadays, existing diagnostic procedures and allergen detection techniques are constantly improved. Meanwhile, new methods are also developed, and more and more putative allergens are discovered. This review describes traditional methods and summarizes recent advances in the fast evolving field of the in vitro food allergy diagnosis, allergen detection in food products and discovery of the new allergenic molecules. A special attention is paid to the new diagnostic methods under laboratory development like various immuno- and aptamer-based assays, including immunoaffinity capillary electrophoresis. The latter technique shows the importance of MS application not only for the allergen detection but also for the allergy diagnosis.
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