An overview on the role of cyclodextrins in the synthesis of silver nanoparticles by chemical reduction

Abstract

The association between cyclodextrins (CDs) and silver nanoparticles (AgNPs) has been successfully exploited in a large number of applications. Generally, CDs act as stabilizers, however, their reactivity as reducing agents can be directly involved in the synthesis of AgNPs. Herein, the most recent results regarding AgNPs prepared by chemical reduction from native α-, β-and γ-cyclodextrins are reported. The behavior of CDs in host-guest inclusion complexes onto the metal surface, and the effects on the AgNPs properties have also been examined. Unlike β-CD/AgNPs and γ-CD/AgNPs, additional reducing agents were required for the investigated α-CD/AgNPs.

Cyclocurcumin as Promising Bioactive Natural Compound: An Overview

“…The SBE-βCD molecule is one of the most common β-cyclodextrin derivatives in which the replacement of the hydroxyl groups of the native cyclodextrin with an average of seven negatively charged sulfobutylether groups leads to the extension of both the hydrophilic moiety and the hydrophobic cavity of the macrocycle. In addition, the use of SBE-βCD offers suitable properties for pharmaceutical formulations such as high solubility, low toxicity and better complexation in comparison to native β-cyclodextrine [91][92][93][94]. It was demonstrated that in the SBE-βCD aqueous solution, cyclocurcumin acts as a guest by forming a supramolecular complex according to a 1:1 stoichiometry.…”