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Food Chem Toxicol. 2018 Jan;111:546-556. doi: 10.1016/j.fct.2017.11.051. Epub 2017 Dec 2.

Stable PEG-coated silver nanoparticles - A comprehensive toxicological profile.

Author information

1
Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: iuliapinzaru@umft.ro.
2
Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: dorinacoricovac@umft.ro.
3
Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: cadehelean@umft.ro.
4
Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: alina.moaca@umft.ro.
5
Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: marius.mioc@umft.ro.
6
Faculty of Medicine, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: flaviabaderca@gmail.com.
7
Department of Chemistry, Wright State University, Dayton, OH, 45435-0001, USA. Electronic address: ioana.pavel@wright.edu.
8
Department of Chemistry, Wright State University, Dayton, OH, 45435-0001, USA. Electronic address: brittle.3@wright.edu.
9
Western University Vasile Goldis Arad, 94 Revolutiei Blvd., 310025, Arad, Romania. Electronic address: dana_m73@yahoo.com.
10
Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, Petru Rares 2, 200349, Craiova, Romania. Electronic address: calinadaniela@gmail.com.
11
Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion 71003, Greece. Electronic address: tsatsaka@uoc.gr.
12
Faculty of Pharmacy, "Victor Babes" University of Medicine and Pharmacy, 2nd Eftimie Murgu Sq., Timisoara, 300041, Romania. Electronic address: codrutasoica@umft.ro.

Abstract

The present study was purported to assess the toxicological profile of bare and polyethylene glycol (PEG) coated spherical silver nanoparticles (AgNPs) by means of in vitro (on human keratinocytes - HaCat cells) and in vivo non-invasive tests (after intraperitoneal - i.p. administration to mice). Bare and PEG-coated AgNPs were synthesized by applying Turkevich's method slightly modified. The physico-chemical characterization revealed the formation of stable, spherical AgNPs and PEG-AgNPs, with narrow size distributions and mean hydrodynamic sizes in the range of 19 nm and 50 nm, respectively. Toxicity data revealed a dose-dependent safe profile for low concentrations of test compounds (<10 μM) in terms of cell viability, whereas higher concentrations were associated with a high rate of cell mortality. In vivo acute/subacute toxicity data showed no denotive changes in mice health status after i.p. administration. Histological observations of internal organs and the biochemical parameters analyzed together with the other biological observations showed a low toxicity level with no major differences related to control, albeit at skin level a reduced number of mast cells was detected. All these observations provide strong support for the idea that coated silver nanoparticles could be applied as targeted nanocarriers for skin pathologies and diagnostic.

KEYWORDS:

Acute/subacute toxicity; In vitro; Mast cells; Non-invasive techniques; SKH-1 mice; Silver nanoparticles

PMID:
29191727
DOI:
10.1016/j.fct.2017.11.051
[Indexed for MEDLINE]

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