Nguyen, Dai Hai and Vo, Thanh Nguyet Nguyen and Nguyen, Ngoc Tung and Ching, Yern Chee and Hoang Thi, Thai Thanh (2020) Comparison of biogenic silver nanoparticles formed byMomordica charantiaandPsidium guajavaleaf extract and antifungal evaluation. PLoS ONE, 15 (9). ISSN 1932-6203, DOI https://doi.org/10.1371/journal.pone.0239360.
Full text not available from this repository.Abstract
Exploiting plant extracts to form metallic nanoparticles has been becoming the promising alternative routes of chemical and physical methods owing to environmentally friendly and abundantly renewable resources. In this study,Momordica charantiaandPsidium guajavaleaf extract (MC.broth and PG.broth) are exploited to fabricate two kinds of biogenic silver nanoparticles (MC.AgNPs and PG.AgNPs). Phytoconstituent screening is performed to identify the categories of natural compounds in MC.broth and PG.broth. Both extracts contain wealthy polyphenols which play a role of reducing agent to turn silver (I) ions into silver nuclei. Trace alkaloids, rich saponins and other oxygen-containing compounds creating the organic corona surrounding nanoparticles act as stabilizing agents. MC.AgNPs and PG.AgNPs are characterized by UV-vis and FTIR spectrophotometry, EDS and TEM techniques. FTIR spectra indicate the presence of O-H, C = O, C-O-C and C = C groups on the surface of silver nanoparticles which is corresponded with three elements of C, O and Ag found in EDS analysis. TEM micrographs show the spherical morphology of MC.AgNPs and PG.AgNPs. MC.AgNPs were 17.0 nm distributed in narrow range of 5-29 nm, while the average size of PG.AgNPs were 25.7 nm in the range of 5-53 nm. Further, MC.AgNPs and PG.AgNPs exhibit their effectively inhibitory ability againstA.niger,A.flavusandF.oxysporumas dose-dependence. Altogether, MC.AgNPs and PG.AgNPs will have much potential in scaled up production and become the promising fungicides for agricultural applications.
| Item Type: | Article |
|---|---|
| Funders: | None |
| Uncontrolled Keywords: | Plant extracts; Metallic nanoparticles; Agricultural applications; Renewable resources |
| Subjects: | Q Science > Q Science (General) T Technology > T Technology (General) |
| Divisions: | Faculty of Engineering > Department of Chemical Engineering |
| Depositing User: | Mrs. Siti Mawarni Salim |
| Date Deposited: | 20 Oct 2022 03:09 |
| Last Modified: | 20 Oct 2022 03:09 |
| URI: | http://eprints.um.edu.my/id/eprint/31606 |
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