| Title |
Iron oxide magnetic nanoparticles functionalized by nisin / |
| Authors |
Gruškienė, Rūta ; Kavleiskaja, Tatjana ; Stanevičienė, Ramunė ; Servienė, Elena ; Sereikaitė, Jolanta |
| DOI |
10.15388/CCT.2023 |
| eISBN |
9786090708330 |
| Full Text |
|
| Is Part of |
Chemistry and chemical technology: international conference CCT-2023, March 10, 2023, Vilnius : conference book.. Vilnius : Vilnius University Press, 2023. P 027, p. 64.. eISBN 9786090708330 |
| Abstract [eng] |
Over the last decades iron oxide magnetic nanoparticles, mostly magnetite (Fe3O4) and maghemite (γ–Fe2O3), have increasingly attracted attention as an efficient tool in various fields of application [1]. Here, we present the preparation and characterization of iron oxide magnetic nanoparticles functionalized by nisin. Nisin is naturally produced by Lactococcus lactis subsp. lactis as a small cationic peptide composed of 34 amino acid residues and is a well-known bacteriocin approved as a food additive for food preservation [2]. Iron oxide magnetic nanoparticles were prepared by the co-precipitation method and characterized by X-ray diffraction method. Magnetic nanoparticles were stabilized by citric, ascorbic, gallic, or glucuronic acid coating and were functionalized by nisin using a simple and low-cost adsorption method (Fig. 1). Nisin loading was confirmed by FT-IR spectra, thermogravimetric analysis, and dynamic light scattering methods. Nisin-loaded iron oxide magnetic nanoparticles were stable for at least six weeks as judged by zeta-potential and hydrodynamic diameter measurements. The functionality of nisin-loaded iron oxide magnetic nanoparticles was demonstrated on Grampositive bacteria. Functionalized nanoparticles could find their application in innovative and emerging technologies as antimicrobials. |
| Published |
Vilnius : Vilnius University Press, 2023 |
| Type |
Conference paper |
| Language |
English |
| Publication date |
2023 |
| CC license |
|
