fulltext.study @t Gmail

Antioxidant and anti-inflammatory activities of zinc oxide nanoparticles synthesized using Polygala tenuifolia root extract

Paper ID Volume ID Publish Year Pages File Format Full-Text
29395 44384 2015 8 PDF Available
Title
Antioxidant and anti-inflammatory activities of zinc oxide nanoparticles synthesized using Polygala tenuifolia root extract
Abstract

•ZnO NPs were developed using the root extract of Polygala tenuifolia.•The green synthesized ZnO NPs showed moderate antioxidant and excellent anti-inflammatory activities.•Green synthesis is a simple, clean, inexpensive and eco-friendly.

The exploitation of various plant materials for the green synthesis of nanoparticles is considered an eco-friendly technology because it does not involve toxic chemicals. In this study, zinc oxide nanoparticles (ZnO NPs) were synthesized using the root extract of Polygala tenuifolia. Synthesized ZnO NPs were characterized by UV–Vis spectroscopy, FTIR, TGA, TEM, SEM and EDX. Anti-inflammatory activity was investigated in LPS-stimulated RAW 264.7 macrophages, whereas antioxidant activity was examined using a DPPH free radical assay. ZnO NPs demonstrated moderate antioxidant activity by scavenging 45.47% DPPH at 1 mg/mL and revealed excellent anti-inflammatory activity by dose-dependently suppressing both mRNA and protein expressions of iNOS, COX-2, IL-1β, IL-6 and TNF-α.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slide

First Page Preview
Antioxidant and anti-inflammatory activities of zinc oxide nanoparticles synthesized using Polygala tenuifolia root extract
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 146, May 2015, Pages 10–17
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering