Reduced Graphene Oxide Sheets as Inhibitors of the Photochemical Reactions of α-Lipoic Acid in the Presence of Ag and Au Nanoparticles.
SERS spectroscopy
UV-VIS spectroscopy
α-lipoic acid
Journal
Nanomaterials (Basel, Switzerland)
ISSN: 2079-4991
Titre abrégé: Nanomaterials (Basel)
Pays: Switzerland
ID NLM: 101610216
Informations de publication
Date de publication:
11 Nov 2020
11 Nov 2020
Historique:
received:
12
10
2020
revised:
04
11
2020
accepted:
07
11
2020
entrez:
14
11
2020
pubmed:
15
11
2020
medline:
15
11
2020
Statut:
epublish
Résumé
The influence of Ag and Au nanoparticles and reduced graphene oxide (RGO) sheets on the photodegradation of α-lipoic acid (ALA) was determined by UV-VIS spectroscopy. The ALA photodegradation was explained by considering the affinity of thiol groups for the metallic nanoparticles synthesized in the presence of trisodium citrate. The presence of excipients did not induce further changes when ALA interacts with Ag and Au nanoparticles with sizes of 5 and 10 nm by exposure to UV light. Compared to the Raman spectrum of ALA powder, changes in Raman lines' position and relative intensities when ALA has interacted with films obtained from Au nanoparticles with sizes between 5 and 50 nm were significant. These changes were explained by considering the chemical mechanism of surface-enhanced Raman scattering (SERS) spectroscopy. The photodegradation of ALA that had interacted with metallic nanoparticles was inhibited in the presence of RGO sheets.
Identifiants
pubmed: 33187318
pii: nano10112238
doi: 10.3390/nano10112238
pmc: PMC7696841
pii:
doi:
Types de publication
Journal Article
Langues
eng
Subventions
Organisme : European Regional Development Fund under the Competitiveness Operational Program 2014-2020 and the National Authority for Scientific Research and Innovation as an Intermediate Body, on behalf of the Ministry of European Funds as Managing Authority for Ope
ID : POC 58/05.09.2016
Références
Biosens Bioelectron. 2011 Oct 15;28(1):152-7
pubmed: 21803563
J Chromatogr A. 2009 Oct 30;1216(44):7564-9
pubmed: 19268962
J Chromatogr A. 2007 Dec 21;1175(2):242-8
pubmed: 17996879
Biochim Biophys Acta. 2009 Oct;1790(10):1149-60
pubmed: 19664690
Anal Chim Acta. 2018 Apr 3;1004:22-31
pubmed: 29329705
Clin Nutr. 2018 Apr;37(2):419-428
pubmed: 28629898
Environ Sci Nano. 2019;6(2):592-598
pubmed: 31728194
Exp Clin Endocrinol Diabetes. 1999;107(7):421-30
pubmed: 10595592
Free Radic Biol Med. 1995 Aug;19(2):227-50
pubmed: 7649494
J Am Chem Soc. 2009 Dec 2;131(47):17042-3
pubmed: 19891442
Nanoscale. 2013 Feb 21;5(4):1475-8
pubmed: 23334777
Spectrochim Acta A Mol Biomol Spectrosc. 2017 May 15;179:155-162
pubmed: 28242444
Int J Mol Sci. 2014 Nov 07;15(11):20469-85
pubmed: 25387076
Proc Natl Acad Sci U S A. 2008 Jul 8;105(27):9157-62
pubmed: 18599443