Abstract

In this study, monodispersed silver nanoparticles with diameter in the range 4-10 nm were first synthesized by chemical reduction from silver nitrate using glucose as reducing agent and sucralose as capping agent, through microwave assisted method. Then, a strong enhancement of the yield of the synthesized nanoparticles and their self-assembly could be achieved through the injection into the colloidal solution, at room temperature, of a tertiary amine (triethylamine, TEA), which acted both as promoter and as directing agent for silver nanoparticles. The yield of the synthesized nanoparticles and the length of the chains could be tuned by facile adjustment of the TEA concentration and reaction time. The interaction between amine and silver nanoparticles made the non-uniform spatial distribution of stabilizers at nanoparticles surfaces and led to the 1D assembly. Transmission electron microscopy (TEM) and UV-Vis spectroscopy have been employed for monitoring the nanochains formation. This mechanism evidenced that sucralose capped silver nanoparticles could also be useful for the real-time naked-eye detection of amine.

Autore Pugliese

• Serra Antonio , Manno Daniela Erminia

Tutti gli autori

• E. Filippo , A. Serra , A. Buccolieri , D. Manno

Titolo volume/Rivista

COLLOIDS AND SURFACES. A, PHYSICOCHEMICAL AND ENGINEERING ASPECTS

Anno di pubblicazione

2013

ISSN

0927-7757

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

9

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile