A Novel Approach of Using Green Synthesized Tellurium Nanoparticles to Protect Historical Oil Paintings from Bacterial Degradation

Document Type : research articles

Authors

4th square

Abstract

A novel approach was developed to investigate the applicability of green-synthesized tellurium nanoparticles (Te-NPs) for the conservation of historical oil paintings from the bacteria effects. The Te-NPs were prepared using two eco-friendly methods. Te-NPs prepared using polyvinylpyrrolidone (PVP) and ascorbic acid (AP-Te-NPs) and those synthesized using Pluchea dioscoridis extract (PE-Te-NPs) were characterized using transmission electron microscopy (TEM) and X-ray diffraction (XRD) to confirm the formation of Te-NPs. Antibacterial activities of Te-NPs, blank mock-up painting models (MPMs), and those treated with Te-NPs (0.1-5 mM) were evaluated against Gram-positive and Gram-negative bacteria. Scanning electron microscopy (SEM) was used to examine the MPMs degraded by the tested bacteria, then, the cytotoxicity of the Te-NPs was evaluated. Additionally, the color properties of the MPMs were determined to evaluate the impact of the prepared Te-NPs on the MPMs. The Te nanorods exhibited lengths in the range of 5-102 nm, and diameters ranged from 1 to 11.5 nm. In addition, Te-NPs with spherical and flower-like shapes ranged from 3.4 to 17.9 nm. Te-NPs showed outstanding antibacterial activity, especially against Gram-negative bacteria. PE-Te-NPs showed higher antibacterial activity against the tested bacteria than AP-Te-NPs did. SEM micrographs and color measurements revealed that the use of Te-NPs significantly minimized the harmful effects of the tested bacteria on MPMs surfaces. Cytotoxicity test also confirmed the potential applicability of Te-NPs (1 mM) as sustainable agents for the conservation of historical oil paintings

Keywords

Main Subjects

Shedet

Articles in Press, Accepted Manuscript
Available Online from 17 April 2024

Files

Share

How to cite

Statistics