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Review
. 2019 Jul 10:14:5087-5107.
doi: 10.2147/IJN.S200254. eCollection 2019.

Green nanotechnology: a review on green synthesis of silver nanoparticles - an ecofriendly approach

Shabir Ahmad  1 , Sidra Munir  1 , Nadia Zeb  1   2 , Asad Ullah  1 , Behramand Khan  1 , Javed Ali  3 , Muhammad Bilal  3 , Muhammad Omer  4 , Muhammad Alamzeb  5 , Syed Muhammad Salman  1 , Saqib Ali  5
Affiliations
Review

Green nanotechnology: a review on green synthesis of silver nanoparticles - an ecofriendly approach

Shabir Ahmad et al. Int J Nanomedicine. .

Abstract

Background: Nanotechnology explores a variety of promising approaches in the area of material sciences on a molecular level, and silver nanoparticles (AgNPs) are of leading interest in the present scenario. This review is a comprehensive contribution in the field of green synthesis, characterization, and biological activities of AgNPs using different biological sources. Methods: Biosynthesis of AgNPs can be accomplished by physical, chemical, and green synthesis; however, synthesis via biological precursors has shown remarkable outcomes. In available reported data, these entities are used as reducing agents where the synthesized NPs are characterized by ultraviolet-visible and Fourier-transform infrared spectra and X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. Results: Modulation of metals to a nanoscale drastically changes their chemical, physical, and optical properties, and is exploited further via antibacterial, antifungal, anticancer, antioxidant, and cardioprotective activities. Results showed excellent growth inhibition of the microorganism. Conclusion: Novel outcomes of green synthesis in the field of nanotechnology are appreciable where the synthesis and design of NPs have proven potential outcomes in diverse fields. The study of green synthesis can be extended to conduct the in silco and in vitro research to confirm these findings.

Keywords: green synthesis; microorganism; plant mediated synthesis; silver bioactivity.

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Conflict of interest statement

The authors report no conflicts of interest in this work.

Figures

Figure 1
Figure 1
Different approaches to nanomaterial (NM) classification. Abbreviation: NPs, nanoparticles.
Figure 2
Figure 2
Various approaches to the synthesis of Ag nanoparticles (NPs).
Figure 3
Figure 3
Plant mediated synthesis of AgNPs.
See this image and copyright information in PMC

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MeSH terms