Green synthesis of silver nanoparticles toward bio and medical applications: review study

Abstract

Development of biologically inspired green synthesis of silver nanoparticles has attracted considerable worldwide attention in matter of medical science and disease treatment. Herein, the green synthesis of silver nanomaterials using organic green sources has been evaluated and discussed. These kinds of materials are widely used for treatment of antibiotic-resistant bacteria, cancer and etc due to their elegant properties compared with other chemical ways and drugs. Moreover, the outcome of green-based approaches were compared with chemical procedures and obtained data were examined via various analyses including UV-visible spectroscopy, scanning electron microscope (SEM), energy dispersive Xray spectroscopy (EDX), transmission electron microscope (TEM), atomic force microscopy (AFM) and Fourier transforms infrared spectroscopy (FT-IR). In this study, variety of green methods were investigated to present a summary of recent achievements toward highlighting biocompatible nanoparticles, all of which can reduce the toxicity of nanoparticles, make them eco-friendly, reduce their side effects and decrease the production cost. The nature of these biological organisms also affect the structure, shape, size and morphology of synthesized nanoparticles.

Synthesis of silver nanoparticles from extracts of Scytonema geitleri HKAR-12 and their in vitro antibacterial and antitumor potentials

“…Since long back, silver-based compounds have been used as antibacterial agent as they have strong antibacterial properties against various microorganisms [63][64][65][66][67][68][69][70][71][72]. Earlier studies have shown the antibacterial activity of biosynthesized NPs [73][74][75]29].…”

Nanoformulations to Enhance the Bioavailability and Physiological Functions of Polyphenols

“…Similar to gold nanoparticles, silver nanoparticles also have anti-inflammatory, antibacterial, anti-cancer and other biological activities [ 290 ]. In recent years, researchers have been interested in the use of plant extracts, such as polyphenols, as reducing agents and stabilizers for green synthesis of silver nanoparticles [ 291 ].…”

Development of graphene based nanocomposites towards medical and biological applications

“…For instance, graphene has been credited for a variety of intriguing properties, such as exceptional thermal conductivity (5000 Wm À1 K À1 ), rapid electron mobility at ambient condition (250,000 cm 2 V À1 s À1 ), and excellent mechanical properties (Young's modulus up to 1 TPa) [3,[6][7][8]. Many attempts have been explored over different derivatives and composites of graphene, whereas synthesised Graphene Oxide (GO) without any further functionalisation process has been revealed as a toxic material.…”