Investigating the effect of silver nanoparticles on biodeteriogen fungi isolated from Masjed-e Jāmé of Isfahan

BACKGROUND AND ABJECTIVEBiodeterioration is an irreversible damage caused by microorganisms or their metabolites to artworks and monuments. Fungi are one of the most important agents in the biodeterioration of cultural works in external environments. Nowadays, nanoparticles obtained from plant extracts have been attracted the attention of researchers to control and treat the biodeterioration due to their availability, effectiveness, low cost and compatibility with the environment. The aim of this study is to investigate the antifungal properties of silver nanoparticles prepared from the aqueous extract of walnut (Juglans regia) skin against ۶ deteriogen fungi isolated from the plaster, brick and ceramic surfaces of Isfahan Jame Mosque.MATERIALS AND METHODSIn this study, the antifungal effect of silver nanoparticle on the selected fungi with deteriorative effect was performed using disk diffusion method and microtiter plate. Then, the minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) was determined.RESULTS AND DISCUSSIONSilver nanoparticle at ۲x۱۰۴ μg/ml concentration had the greatest effect on Parengyodontium album with inhibition zone ۲۴ mm, and MIC ۶۲۵ μg/ml. Furthermore, the lowest effect of silver nanoparticle was on Aspergillus flavus with inhibition zone ۱۲ mm and MIC of ۲x۱۰۳ μg/ml without any fungicidal effect.CONCLUSIONAccording to the results of this study, it is concluded that silver nanoparticles are effective on fungi, which are biodeteriogen in cultural heritage buildings, although more investigation should be done for the efficiency of this nanoparticle on stone.

کلیدواژه ها:

Antifungals ، Biodeterioration ، Biological nanoparticle ، Cultural heritage ، Green synthesis