Tunable functionality and nanogeometry in tetrahydrofuran hydroperoxide and 3-aminopropyl-trimethoxysilane mediated synthesis of gold nanoparticles; functional application in glutathione sensing

Abstract

We report herein a process involving the active role of tetrahydrofuran hydroperoxide and 3-aminopropyltrimethoxysilane that allows controlled synthesis of functional gold nanoparticles.

Tetrahydrofuran hydroperoxide and 3-Aminopropyltrimethoxysilane mediated controlled synthesis of Pd, Pd-Au, Au-Pd nanoparticles: Role of Palladium nanoparticles on the redox electrochemistry of ferrocene monocarboxylic acid

“…The properties of as synthesized PdNPs and bimetallic nanoparticles (as shown in Fig. 1) are analogous to that reported earlier [24,26,35,36] justifying novelty of the present process for rapid and controlled synthesis of these nanoparticles under ambient conditions. The time taken during such nanoparticle formation lie between 5 min to 2 h validating the use of 3-APTMS and THF-HPO as most efficient reagents in the synthesis of noble metal nanoparticles and bimetallic nanoparticles.…”

“…When gold salt was replaced by tetrachloropalladate, it has been found that THF-HPO on mixing with 3-APTMS capped Pd 2+ ions immediately converted into a light yellow solution which subsequently leads into black color PdNPs sol. The role of 3-APTMS and THF-HPO has been examined and the observations based on TEM and AFM analysis justify the similar behavior as that recorded for the synthesis of AuNPs [26]. In addition to that the process also enables the synthesis of bimetallic nanoparticles of palladium and gold of variable ratio under two different conditions of reacting system: (a) simultaneous and (b) sequential.…”

“…The role of 3-aminopropyltrimethoxysilane (3-APTMS) and tetrahydrofuran hydroperoxide (THF-HPO) has been studied in details for the synthesis of gold nanoparticles (AuNPs) of controlled nanogeometry [26]. Similar, process for the conversion of 3-APTMS capped Pd 2+ ions by THF-HPO is observed.…”

“…Recently, we have demonstrated that 3-APTMS acts as an active reagent for the synthesis and stabilization of noble metal nanoparticles of palladium, gold and silver [24,25]. Further, the use of 3-APTMS, tetrahydrofuron hydroperoxide (THF-HPO) has been investigated and the findings justify precise conversion of Au 3+ into gold nanoparticles (AuNPs) [26]. In addition to that 3-APTMS and cyclohexanone precisely convert potassium ferricyanide into polycrystalline Prussian blue nanoparticles [27].…”

3-Aminopropyltrimethoxysilane and 3-Glycidoxypropyltrimethoxysilane Mediated Synthesis of Graphene and its Nanocomposite: Potential Bioanalytical Appliactions

“…In addition to that some of such functional alkoxysilanes like 3-aminopropyltrimethoxysilane (3-APTMS) and 3-glycidoxypropyltrimethoxysilane (3-GPTMS)) have recently been utilized as reagents and stabilizer during the synthesis of noble metal nanoparticles under ambient [10][11][12]. Further the active role of 3-APTMS has also been demonstrated during the synthesis of prussian blue nanoparticles (PBNPs) [13,14].…”