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Observation of Brownian Relaxation of Magnetic Nanoparticles using HTS SQUID

O. Snigirev, I. Soloviev, A. Kalabukhov, M. Chukharkin

Moscow University Physics Bulletin

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

Some features of the grazing interaction of fast electrons with dielectric surfaces

K.A. Vokhmyanina$^1$, A.A. Kaplii$^1$, A.S. Kubankin$^{1,2}$, V.S. Sotnikova$^1$, T.B. Nikulicheva$^1$, A.S. Chepurnov$^3$

Moscow University Physics Bulletin

The paper provides an analysis of experimental data obtained in the study of the mechanisms of interaction of fast electron beams with flat dielectric surfaces of various materials. In addition the new experimental results on the grazing interaction of 10 keV electrons with the metallized structured surface are presented. It is shown the difference in the interaction processes of the fast electron beams with flat and structured surfaces.

Observation of Brownian relaxation for magnetic nanoparticles using HTS SQUID

O. Snigirev$^{1,2}$, I. Soloviev$^3$, A. Kalabukhov$^4$, M. Chukharkin$^4$

Moscow University Physics Bulletin

We performed a sensitivity analysis for the scheme of immunoassay using functionalized magnetic nanoparticles (IPM) and sensitive HTS SQUID magnetometer. The signal from the sample (100 μ) at a concentration of 1 mg/ml in a field 7.5 nT is equal to 20 мФ$_0$. This allows the sensitivity in the range of 50 ng/ml at time cost up to 100 s to a point in frequency spectrum.

Elsevier's Scopus released their CiteScore journal metric

December 8, 2016 Elsevier's Scopus released their CiteScore journal metric. This new metric is intended as an alternative to the popular Thomson-Reuters (now Clarivate Analytics) Impact Factor.

Moscow University Physics Bulletin

"Moscow University Physics Bulletin" (Published since 1946) - The authoritative scientific publication, magazine articles and materials reflect the theme of the most important areas of theoretical and experimental studies on the full range of scientific questions, studied at the Physics Department of Moscow State University.

The magazine publishes experimental and theoretical works (reviews, articles) in the following areas of physics:

  • Theoretical and Mathematical Physics
  • Nuclear physics and elementary particles
  • Radio physics, electronics, acoustics
  • Optics and Spectroscopy. Laser physics
  • Condensed matter physics
  • Chemical physics, physical kinetics and plasma physics
  • Biophysics and Medical Physics
  • Astronomy , Astrophysics and Cosmology
  • Physics of the Earth, the atmosphere and hydrosphere

The journal publishes articles of employees and students of the Moscow State University and other universities and research institutions have permits to publish articles obtained in the scientific department at the place of work or study.

The magazine is published once every two months (6 issues per year). The journal is translated into English and distributed on-line publishing Allerton Press on the Springer platform. The English version of the magazine is available at link: Moscow University Physics Bulletin.