Detection of viral antibodies in camel sera using magnetic particle spectroscopy

© 2023. The Author(s)..

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:

E-Artikel

Erscheinungsjahr:

2023

Erschienen:

2023

Enthalten in:

Zur Gesamtaufnahme - volume:107

Enthalten in:

Applied microbiology and biotechnology - 107(2023), 10 vom: 15. Mai, Seite 3329-3339

Sprache:

Englisch

Beteiligte Personen:

Friedrich, Bernhard [VerfasserIn]
Vogel, Patrick [VerfasserIn]
Rückert, Martin A [VerfasserIn]
Lyer, Stefan [VerfasserIn]
Günther, Johanna [VerfasserIn]
Wernery, Ulrich [VerfasserIn]
Joseph, Sunitha [VerfasserIn]
Müller, Judith [VerfasserIn]
Behr, Volker C [VerfasserIn]
Alexiou, Christoph [VerfasserIn]
Tietze, Rainer [VerfasserIn]

Links:

Volltext

Themen:

Antibodies, Viral
Antibody detection
COMPASS
Camels
Journal Article
MNPs
MPS
RNA, Viral
Rapid bioassay
SARS-Cov-2

Anmerkungen:

Date Completed 08.05.2023

Date Revised 08.05.2023

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1007/s00253-023-12513-4

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM355645904