Krzyminiewski R, Dobosz B, Schroeder G, Kurczewska J. ESR as a monitoring method of the interactions between TEMPO-functionalized magnetic nanoparticles and yeast cells.
Sci Rep 2019;
9:18733. [PMID:
31822759 PMCID:
PMC6904674 DOI:
10.1038/s41598-019-55335-z]
[Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 11/20/2019] [Indexed: 02/08/2023] Open
Abstract
Potential application of magnetic nanoparticles as drug carriers in medical treatment requires prior determination of their effects on cells. In this work different spin labels and magnetic nanoparticles functionalized with spin labels as well as their interaction with yeast cells were investigated using electron spin resonance (ESR) method. ESR was demonstrated to be a suitable method for monitoring of magnetic core and attached spin labels. Particular emphasis was placed on characterization of endocytosis and redox processes running inside the cell, resulting in recombination of spin labels. Such data could only be obtained at reduced temperature of ESR measurements.
Collapse