Tea Plant Leaves for Green Synthesis of Metallic Nanoparticles

Abstract

Synthesis of metallic nanoparticles using tea plant leaves is a well-recognized and non-toxic method. During the last few decades, synthesis of metal nanoparticles using plant extract is useful not only because of its reduced environmental but also because it can be used to produce large quantities of nanoparticles. Plant extracts may act both as reducing agents and stabilizing agents in the synthesis of nanoparticles, this has motivated the researchers to synthesis the nanoparticles using this route that allows better control of shape and size for various applications. This paper reviews the methods of synthesizing by using metals (e.g., gold [Au], silver [Ag], Iron [Fe], Cadmium [Cd], Palladium [Pd], copper [Cu]), nanoparticles from tea plant leaves extracts as well as their characteristics and some applications. The aim of this review is to report the effect of tea extraction for synthesis metallic nanoparticles (NPs) and compare the nanoscale properties and its applications.

Green Synthesis of Silver Nanoparticles: Optimizing Green Tea Leaf Extraction for Enhanced Physicochemical Properties

“…Therefore, tea fermentation processes have been optimized, and microwaves have been used during extraction . Tea leaves as a reach plant source of natural reducing compounds have gained recognition among the interests of researchers not only in terms of extraction but also in the synthesis of nanoparticles of various metals. – Of all types of tea, green tea deserved special attention. AgNPs obtained through its extracts have been examined for antibacterial and antifungal activity. ,– In certain cases, even their catalytic activity in the degradation of dyes present in industrial wastewater like Reactive Yellow 160, Direct Fast Rose FR Red 227, Basic Brilliant Flavine Y-40, Reactive Red 81, Congo Red Direct, Orange E3 and Crystal Violet have been confirmed.…”

“… 45 Tea leaves as a reach plant source of natural reducing compounds have gained recognition among the interests of researchers not only in terms of extraction but also in the synthesis of nanoparticles of various metals. 46 – 48 Of all types of tea, green tea deserved special attention. AgNPs obtained through its extracts have been examined for antibacterial and antifungal activity.…”

The Antimicrobial and Mosquitocidal Activity of Green Magnesium Oxide Nanoparticles Synthesized by an Aqueous Peel Extract of Punica granatum

“…Plants and microorganisms have huge potential for bioreduction and the production of stable NPs thanks to coating agents, with the possibility of the extra/intracellular synthesis of NPs [11]. In addition, plant synthesis methods are the best biological options for producing NPs at a low cost, easily, and in large quantities, with better control over their size, shape, and biocompatibility, which allows them to be applied medically in the treatment of cancer, drug delivery, and as antibacterial and antifungal agents, as well as enabling their successful use in insecticide [12].…”