Detection of viral antibodies in camel sera using magnetic particle spectroscopy
Abstract Pandemics like SARS-Cov-2 very frequently have their origin in different animals and in particular herds of camels could be a source of zoonotic diseases. This study took advantage on a highly sensitive and adaptable method for the fast and reliable detection of viral antibodies in camels using low-cost equipment. Magnetic nanoparticles (MNP) have high variability in their functionalization with different peptides and proteins. We confirm that 3-aminopropyl triethoxysilane (APTES)-coated MNP could be functionalized with viral proteins. The protein loading could be confirmed by simple loading controls using FACS-analysis (p < 0.05). Complementary combination of antigen and antibody yields in a significant signal increase could be proven by both FACS and COMPASS. However, COMPASS needs only a few seconds for the measurement. In COMPASS, the phase φn on selected critical point of the fifth higher harmonic (n = 5th). Here, positive sera display highly significant signal increase over the control or negative sera. Furthermore, a clear distinction could be made in antibody detection as an immune response to closely related viruses (SARS-CoV2 and MERS). Using modified MNPs along with COMPASS offers a fast and reliable method that is less cost intensive than current technologies and offers the possibility to be quickly adapted in case of new occurring viral infections. Key points • COMPASS (critical offset magnetic particle spectroscopy) allows the fast detection of antibodies. • Magnetic nanoparticles can be adapted by exchange of the linked bait molecule. • Antibodies could be detected in camel sera without washing steps within seconds..
Medienart: |
Artikel |
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Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:107 |
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Enthalten in: |
Applied microbiology and biotechnology - 107(2023), 10 vom: 15. Apr., Seite 3329-3339 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Friedrich, Bernhard [VerfasserIn] |
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Links: |
Volltext [lizenzpflichtig] |
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Themen: |
Antibody detection |
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Anmerkungen: |
© The Author(s) 2023 |
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doi: |
10.1007/s00253-023-12513-4 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
OLC2134807377 |
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520 | |a Abstract Pandemics like SARS-Cov-2 very frequently have their origin in different animals and in particular herds of camels could be a source of zoonotic diseases. This study took advantage on a highly sensitive and adaptable method for the fast and reliable detection of viral antibodies in camels using low-cost equipment. Magnetic nanoparticles (MNP) have high variability in their functionalization with different peptides and proteins. We confirm that 3-aminopropyl triethoxysilane (APTES)-coated MNP could be functionalized with viral proteins. The protein loading could be confirmed by simple loading controls using FACS-analysis (p < 0.05). Complementary combination of antigen and antibody yields in a significant signal increase could be proven by both FACS and COMPASS. However, COMPASS needs only a few seconds for the measurement. In COMPASS, the phase φn on selected critical point of the fifth higher harmonic (n = 5th). Here, positive sera display highly significant signal increase over the control or negative sera. Furthermore, a clear distinction could be made in antibody detection as an immune response to closely related viruses (SARS-CoV2 and MERS). Using modified MNPs along with COMPASS offers a fast and reliable method that is less cost intensive than current technologies and offers the possibility to be quickly adapted in case of new occurring viral infections. Key points • COMPASS (critical offset magnetic particle spectroscopy) allows the fast detection of antibodies. • Magnetic nanoparticles can be adapted by exchange of the linked bait molecule. • Antibodies could be detected in camel sera without washing steps within seconds. | ||
650 | 4 | |a SARS-Cov-2 | |
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650 | 4 | |a Antibody detection | |
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700 | 1 | |a Vogel, Patrick |4 aut | |
700 | 1 | |a Rückert, Martin A. |4 aut | |
700 | 1 | |a Lyer, Stefan |4 aut | |
700 | 1 | |a Günther, Johanna |4 aut | |
700 | 1 | |a Wernery, Ulrich |4 aut | |
700 | 1 | |a Joseph, Sunitha |4 aut | |
700 | 1 | |a Müller, Judith |4 aut | |
700 | 1 | |a Behr, Volker C. |4 aut | |
700 | 1 | |a Alexiou, Christoph |4 aut | |
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