Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Feb 20;4(5):1900104.
doi: 10.1002/gch2.201900104. eCollection 2020 May.

Determination of Antimicrobial and Toxic Metal Removal Activities of Plant-Based Synthesized (Capsicum annuum L. Leaves), Ecofriendly, Gold Nanomaterials

Mehmet Firat Baran  1 , Hilal Acay  2 , Cumali Keskin  2
Affiliations

Determination of Antimicrobial and Toxic Metal Removal Activities of Plant-Based Synthesized (Capsicum annuum L. Leaves), Ecofriendly, Gold Nanomaterials

Mehmet Firat Baran et al. Glob Chall. .

Abstract

Nanoparticles are valuable materials with widespread use. The fact that these materials are obtained by biological resources with an environmentally friendly method contributes to the development of studies in this field. Gold nanoparticles (AuNPs) from waste vegetable sources (green leaves of Capsicum annum L.) are economically and easily synthesized. The obtained particles are characterized by UV-vis spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analysis. The antimicrobial activity of the particles on the pathogenic microorganisms Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 29213, Bacillus subtilis bacteria, and Candida albicans yeast are found to have a significant suppressive effect. The removal activities of eight toxic metals (Pd, Cd, Fe, Ni, Co, Mn, Zn, Pb) in Diyarbakır drinking water and artificially prepared water within different pHs are investigated. Gold nanoparticles synthesized from Capsicum annuum L. leaves are found to be effective in toxic metal removal in water samples.

Keywords: SEM; UV–vis; XRD; antimicrobial activity; nanoparticles; removal activity; toxic metals.

PubMed Disclaimer

Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Schematic representation of the synthesis of gold nanoparticles from waste vegetable source.[ 8 ]
Figure 2
Figure 2
UV–vis showing the formation and presence of AuNPs. Analysis results data. A) Before synthesis, B) after synthesis, C) absorbance data obtained from periodic measurements, D) maximum absorbance data.
Figure 3
Figure 3
FTIR analysis result data. A) Extract, B) evaluation of functional groups after synthesis.
Figure 4
Figure 4
Investigation of crystal structure and gold phases of AuNPs by XRD analysis.
Figure 5
Figure 5
Evaluation of the morphology of AuNPs in SEM results.
Figure 6
Figure 6
Investigation of the elemental composition of AuNPs by EDX analysis.
Figure 7
Figure 7
Toxic metals % removal activities of gold nanoparticle adsorbents at different pH.
Figure 8
Figure 8
Plant material (Capsicum annuum L.) used for extract preparation.
See this image and copyright information in PMC

References

    1. Zangeneh M. M., Zangeneh A., Pirabbasi E., Moradi R., Almasi M., Appl. Organomet. Chem. 2019, e5246.
    1. Eren A., Baran M. F., Appl. Ecol. Env. Res. 2019, 17, 4097.
    1. Khoshnamvand M., Ashtiani S., Huo C., Saeb S. P., Liu J., J. Mol. Struct. 2019, 1179, 749.
    1. Baran M. F., Appl. Ecol. Env. Res. 2019, 17, 2583.
    1. Boomi P., Ganesan R. M., Poorani G., Gurumallesh Prabu H., Ravikumar S., Jeyakanthan J., Mater. Sci. Eng., C 2019, 99, 202. - PubMed

LinkOut - more resources