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. 2020 Feb 15;10(2):308. doi: 10.3390/biom10020308

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© 2020 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Calcium ion imaging following stimulation with different types of magnetic particles. Images of [Ca²⁺]_i in EPG+GFP-transfected HEK293T cells (the original GFP images: left column, 340/380 ratio pseudo-images before adding MPs: middle column, 340/380 nm ratio image after the addition of MPs: right column, 20×). (A) HEK293T^EPG+GFP with SMNPs. (B) HEK293T^GFP with Ferromagnetic particles (FMPs). (C) HEK293T^EPG+GFP with FMPs.