4.7 Article

Biological Impact of γ-Fe2O3 Magnetic Nanoparticles Obtained by Laser Target Evaporation: Focus on Magnetic Biosensor Applications

Journal

BIOSENSORS-BASEL
Volume 12, Issue 8, Pages -

Publisher

MDPI
DOI: 10.3390/bios12080627

Keywords

magnetic nanoparticles; constant magnetic field; biomedical applications; human skin fibroblasts; cell proliferation; cytokine secretion

Funding

  1. Ministry of Health of the Russian Federation [121032300335-1]
  2. Ministry of Science and Higher Education of the RF [FEUZ-2020-0051]
  3. University of the Basque Country Research Groups Funding [IT1245-19]

Ask authors/readers for more resources

The biological activity of gamma-Fe2O3 magnetic nanoparticles (MNPs) and their effects on human dermal fibroblasts were investigated. MNPs uptake stimulated fibroblast proliferation, while extracellular MNPs stimulated the release of pro-inflammatory cytokines. However, the constant magnetic field did not significantly affect fibroblast proliferation and secretion.
The biological activity of gamma-Fe2O3 magnetic nanoparticles (MNPs), obtained by the laser target evaporation technique, was studied, with a focus on their possible use in biosensor applications. The biological effect of the MNPs was investigated in vitro on the primary cultures of human dermal fibroblasts. The effects of the MNPs contained in culture medium or MNPs already uptaken by cells were evaluated for the cases of the fibroblast's proliferation and secretion of cytokines and collagen. For the tests related to the contribution of the constant magnetic field to the biological activity of MNPs, a magnetic system for the creation of the external magnetic field (having no commercial analogues) was designed, calibrated, and used. It was adapted to the size of standard 24-well cell culture plates. At low concentrations of MNPs, uptake by fibroblasts had stimulated their proliferation. Extracellular MNPs stimulated the release of pro-inflammatory cytokines (Interleukin-6 (IL-6) and Interleukin-8 (IL-8) or chemokine (C-X-C motif) ligand 8 (CXCL8)) in a concentration-dependent manner. However, the presence of MNPs did not increase the collagen secretion. The exposure to the uniform constant magnetic field (H approximate to 630 or 320 Oe), oriented in the plane of the well, did not cause considerable changes in fibroblasts proliferation and secretion, regardless of presence of MNPs. Statistically significant differences were detected only in the levels of IL-8/CXCL8 release.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available