Observation of Brownian Relaxation of Magnetic Nanoparticles using HTS SQUID
Artikel i vetenskaplig tidskrift, 2017

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 mu L sample at a concentration of 1 mg/mL and field of 7.5 nT was 20 m Phi(0). 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.

Physics

immunoassay

high-temperature superconducting films

magnetic

SQUID

magnetometry

Författare

O. V. Snigirev

Lomonosov Moscow State University

, II Soloviev

Lomonosov Moscow State University

Alexei Kalaboukhov

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Maxim Chukharkin Leonidovich

Chalmers, Mikroteknologi och nanovetenskap (MC2), Kvantkomponentfysik

Moscow University Physics Bulletin (English Translation of Vestnik Moskovskogo Universiteta, Fizika)

0027-1349 (ISSN)

Vol. 72 95-100

Styrkeområden

Nanovetenskap och nanoteknik

Ämneskategorier

Analytisk kemi

DOI

10.3103/s0027134917010143