Observation of Brownian relaxation of magnetic nanoparticles using HTS SQUID
- Autores: Snigirev O.V.1, Soloviev I.I.2, Kalabukhov A.S.2,3, Chukharkin M.L.3
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Afiliações:
- Department of Semiconductor Physics, Faculty of Physics
- Skobeltsyn Institute of Nuclear Physics
- Chalmers University of Technology
- Edição: Volume 72, Nº 1 (2017)
- Páginas: 95-100
- Seção: Biophysics and Medical Physics
- URL: https://journals.rcsi.science/0027-1349/article/view/164710
- DOI: https://doi.org/10.3103/S0027134917010143
- ID: 164710
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Resumo
We analyzed the sensitivity of a separationless immunoassay scheme using functionalized magnetic nanoparticles (MNPs) and a sensitive HTS SQUID magnetometer. The signal of a 100 μL sample at a concentration of 1 mg/mL and field of 7.5 nT was 20 mΦ0. This makes it possible for the sensitivity to be within the range of 50 ng/mL at the required time of up to 100 s per a point in the frequency spectrum.
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Sobre autores
O. Snigirev
Department of Semiconductor Physics, Faculty of Physics
Autor responsável pela correspondência
Email: oleg.snigirev@phys.msu.ru
Rússia, Moscow, 119991
I. Soloviev
Skobeltsyn Institute of Nuclear Physics
Email: oleg.snigirev@phys.msu.ru
Rússia, Moscow, 119991
A. Kalabukhov
Skobeltsyn Institute of Nuclear Physics; Chalmers University of Technology
Email: oleg.snigirev@phys.msu.ru
Rússia, Moscow, 119991; Kemivagen 9, Gothenburg, SE 412 96
M. Chukharkin
Chalmers University of Technology
Email: oleg.snigirev@phys.msu.ru
Suécia, Kemivagen 9, Gothenburg, SE 412 96
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