Antibacterial Applications of Biosynthesized AgNPs: A Short Review (2015-2020)

Abstract

Bacterial resistance to a wide spectrum of antimicrobial medicines has evolved as a major public health concern. Antibiotics are medications that are used to kill microorganisms that could cause serious illness or death. Nanotechnology has exploded as a significant and appealing field of research, with innovative features and functionalities in a variety of fields. Silver is a versatile antibacterial and anticancer medicinal agent in the form of nanoparticles. Silver Nanoparticles (AgNPs) have been implicated in a wide variety of medicinal benefits. This review article addresses antibacterial applications of biosynthesized AgNPsthat have been researched over the last decade. AgNPs' antimicrobial potential against a variety of bacterial agents is discussed.

Green Synthesis of Silver Nanoparticles from Cannabis sativa: Properties, Synthesis, Mechanistic Aspects, and Applications

“…Research indicates that AgNPs are more effective against Grampositive bacteria, such as Staphylococcus aureus, due to the structural peculiarities of Grampositive cell walls, which allow easier penetration of nanoparticles. In contrast, their action against Gram-negative bacteria, like Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae, involves complex interactions with outer membrane proteins and the periplasmic space, which may also lead to the disruption of the bacterial membrane integrity [123].…”

5,12‐Dihydroindolo[3,2‐a]Carbazole Derivatives‐Based Water Soluble Photoinitiators for 3D Antibacterial Hydrogels Preparation

“…coli was employed in this investigation to examine the bacte ricidal activity of hydrogels encapsulating AgNPs since it's gen eral known that AgNPs have potent antibacterial effects. [54][55][56] E. coli initially cultivated on solid LBagar utilizing silver nan oparticlecontaining hydrogels as the experimental group and pure PEG hydrogels served as the experimental control. After an overnight incubation, it was revealed that a growth inhibi tion halo was only clearly apparent around hydrogel containing AgNPs (see Figure 7b).…”

Green Synthesis and Applications of Silver Nanoparticles: A Systematic Review

“…Bacterial membranes are largely loaded with negative charges due to the presence of lipopolysaccharide, peptidoglycan, and various groups, including carboxyl, amino, and phosphate groups. 176,177 Electrostatic attraction aids AgNPs adhesion to bacterial membranes when positive charges are present. As a result, adjusting the charge on the surface of AgNPs might help them have a better antibacterial activity.…”