Abstract

A new type of nanomaterial has been developed as antibacterial additive for food packaging applications. This nanocomposite is composed of copper nanoparticles embedded in polylactic acid, combining the antibacterial properties of copper nanoparticles with the biodegradability of the polymer matrix. Metal nanoparticles have been synthesised by means of laser ablation, a rising and easy route to prepare nanostructures without any capping agent in a liquid environment. As prepared, nanoparticle suspensions have been easily mixed to a polymer solution. The resulting hybrid solutions have been deposited by drop casting, thus obtaining self-standing antibacterial packages. All samples have been characterized by UV-Vis spectroscopy, X-ray photoelectron spectroscopy and electro-thermal atomic absorption spectroscopy. Ion release data have been matched with bioactivity tests performed by Japanese Industrial Standard (JIS) method (JIS Z 2801:2000) against Pseudomonas spp., a very common Gram-negative microbial group able to proliferate in processed food.

Autore Pugliese

• Sabbatini Luigia , Torsi Luisa , Cioffi Nicola , Ditaranto Nicoletta

Tutti gli autori

• SABBATINI L.;TORSI L.;CIOFFI N.;DITARANTO N.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2012

ISSN

1618-2642

ISBN

Non Disponibile

Numero di citazioni Wos

62

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

67

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile