![](/images/graphics-bg.png)
Silver Nanoparticles Obtained by Aqueous or Ethanolic Aloe vera Extracts: An Assessment of the Antibacterial Activity and Mercury Removal Capability
Joint Authors
Vélez, Ederley
Campillo, Gloria
Morales, Gladis
Hincapié, César
Osorio, Jaime
Arnache, Oscar
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-19
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Silver nanoparticles (AgNPs) were synthesized by chemical reduction of Ag+ ions (from silver nitrate AgNO3), using aqueous or ethanolic Aloe vera extracts as reducing, stabilizing, and size control agent.
The nanoparticles’ sizes were between 2 and 7 nm for ethanolic extract and between 3 and 14 nm for aqueous extract, as measured by High-Resolution Transmission Electron Microscope (HRTEM).
The antibacterial activity against a mesophilic microorganism, Kocuria varians, a Gram-positive coccus, was measured by counting bacterial colonies in agar plate for both extracts.
We found that 4% effective concentration is the lowest concentration that completely inhibited visible growth.
Mercury removal was investigated by Atomic Absorption Spectroscopy (AAS) measurements, where it was shown that it is not necessary to use high concentrations of nanoparticles for effective removal of mercury inasmuch as with a 20% V/V concentration of both extracts; the Hg(II) removal percentage was above 95%.
These results show that the mercury remaining unremoved from the different essays is below the level allowed by World Health Organization (WHO) and the Environmental Protection Agency (EPA).
American Psychological Association (APA)
Vélez, Ederley& Campillo, Gloria& Morales, Gladis& Hincapié, César& Osorio, Jaime& Arnache, Oscar. 2018. Silver Nanoparticles Obtained by Aqueous or Ethanolic Aloe vera Extracts: An Assessment of the Antibacterial Activity and Mercury Removal Capability. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1194760
Modern Language Association (MLA)
Vélez, Ederley…[et al.]. Silver Nanoparticles Obtained by Aqueous or Ethanolic Aloe vera Extracts: An Assessment of the Antibacterial Activity and Mercury Removal Capability. Journal of Nanomaterials No. 2018 (2018), pp.1-7.
https://search.emarefa.net/detail/BIM-1194760
American Medical Association (AMA)
Vélez, Ederley& Campillo, Gloria& Morales, Gladis& Hincapié, César& Osorio, Jaime& Arnache, Oscar. Silver Nanoparticles Obtained by Aqueous or Ethanolic Aloe vera Extracts: An Assessment of the Antibacterial Activity and Mercury Removal Capability. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-7.
https://search.emarefa.net/detail/BIM-1194760
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194760