Bioremediation and pharmacological applications of gold nanoparticles synthesized from plant materials

Abstract

Nanotechnology and nanoscience are gaining remarkable attention in this era due to their distinctive properties and multi applications. Gold nanoparticles (AuNPs) is one of the most relevant metal nanoparticles with enormous applications in various field of research and industries. The demand for AuNPs is increasing rapidly. Extensive awareness has been allotted to the development of novel approaches for the synthesis of AuNPs with quality morphological properties using biological sources due to the limitations associated with the chemical and physical methods. Several factors such as contact time, temperature, pH of solution media, concentration of gold precursors and volume of plant extract influences the synthesis, characterization and applications of AuNPs. Characterization of synthesized AuNPs is important in evaluating the morphological properties of AuNPs since the morphological properties of AuNPs affect their potential use in various applications. This review highlights various methods of synthesizing AuNPs, parameters influencing the biosynthesis of AuNPs from plant extract, several techniques used for AuNPs characterization and their potential in bioremediation and biomedical applications.

Honeybee pollen assisted biosynthesis of nanogold and its application as catalyst in reduction of 4-nitrophenol

“…To date, many techniques have been used to treat urban effluence, but each has some advantages and disadvantages. Interestingly, the J o u r n a l P r e -p r o o f remediation of toxic chemicals using biosynthesized AuNPs from plant materials offers an inexpensive and environmentally sound approach to addressing this global issue [35]. Many studies report the reduction of 4-NP in the presence of a metallic nanocatalyst.…”

Recent progress in nanotechnology-based drug carriers for resveratrol delivery

“…However, GNPs are usually synthesized by physical or chemical methods that may be toxic to humans. In contrast, synthesizing GNPs with plant-derived secondary metabolites such as RES is environmentally friendlier and may be safer for subsequent in vivo use (Bharadwaj et al., 2021 ; Akintelu et al., 2021 ). For example, RES-loaded GNPs were synthesized at room temperature through the RES-mediated reduction of Au 3+ into Au 0 , and the nanoparticle surface was then wrapped with highly branched gum Arabic to improve drug loading efficiency and overall stability.…”

Gold nanoparticles synthesis mediated by fungus isolated from aerobic granular sludge: Process and mechanisms

“…As a result, the toxic reagents and high costs associated with physical and chemical synthesis have become a major source of obstacles [ 14 ]. In addition, the extraction of nanoparticles from plant extracts is also a hot research topic [ 15 , 16 ]. Due to the large amount of phytochemicals contained in the extracts, the reaction rate and pathway may not be easy to control, thus restricting the development of this technology [ 17 ].…”