Biopolymers from Composted Biowaste as Stabilizers for the Synthesis of Spherical and Homogeneously Sized Silver Nanoparticles for Textile Applications on Natural Fibers. Issue 18 (28th October 2015)

• Record Type: Journal Article
• Authors: Nisticò, Roberto; Barrasso, Marco; Carrillo Le Roux, Galo Antonio; Seckler, Marcelo Martins; Sousa, Walter; Malandrino, Mery; Magnacca, Giuliana
• Is Part Of: Chemphyschem. Volume 16:Issue 18(2015)
• Page Start: 3902
• Page End: 3909
• Publication Date: 2015-10-28
• Subjects: biopolymers -- cotton -- nanoparticles -- silver -- wool; Chemistry, Physical and theoretical -- Periodicals; 541.05
• DOI: 10.1002/cphc.201500721
• Languages: English
• ISSNs: 1439-4235

Abstract

Abstract: The use of bio‐based substances (BBS) obtained from composted biowaste as stabilizers for the production of silver nanoparticles (AgNPs) in substitution to citrate is investigated herein, evaluating the functionalization of natural fibers for textile antibacterial applications. The results obtained evidenced that BBS can substitute citrate as reducing/stabilizing agent in the synthesis, inducing a geometrical control (in shape and size) of the AgNPs. Two different substrates were selected (wool and cotton) and two dip‐coating deposition techniques investigated. The release of AgNPs from the supports in water was evaluated under two different experimental conditions: 1) soaking (static conditions) for 7 and 15 days, simulating the contact with sweat, and 2) centrifugation (dynamic conditions), simulating a washing machine treatment. A wide physicochemical characterization was carried out to evaluate the effects of BBS on the morphology and stability of AgNPs suspensions as well as the functionalization effectiveness. Abstract : The greener, the better : Biopolymers obtained from biowaste are used as reducing agents/stabilizers for the production of Ag nanoparticles with an increased control in terms of shape, size, and aging. Surface functionalization of natural fibers (wool and cotton) and the release of Ag under both static and dynamic conditions, simulating the normal life of a tissue, are evaluated.