Table of Contents
Journal of Materials
Volume 2016, Article ID 3194154, 7 pages
Research Article

Fabrication and Antibacterial Effects of Polycarbonate/Leaf Extract Based Thin Films

1Department of Chemistry, Anjalai Ammal Mahalingam Engineering College, Anna University, Kovilvenni 614 403, India
2Department of Biotechnology, Rajalakshmi Engineering College, Anna University, Thandalam, Chennai 602105, India

Received 22 April 2016; Revised 23 August 2016; Accepted 1 September 2016

Academic Editor: Huan-Tsung Chang

Copyright © 2016 R. Mahendran et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We have reported the preparation and antibacterial activities of leaf extract incorporated polycarbonate thin films to improve the antibacterial characteristics of host polycarbonates (PCs). Crude extracts of Azadirachta indica, Psidium guajava, Acalypha indica, Andrographis paniculata, and Ocimum sanctum were prepared by maceration using Dimethylformamide as solvent. The leaf extracts (LE) were incorporated into the PC matrix by solution blending method, and the thin films were fabricated by Thermally Induced Phase Separation (TIPS) technique. The antibacterial activities of the as-prepared films were evaluated against E. coli and S. aureus by disk diffusion method. The inhibitory effects of the PC/LE films are higher for S. aureus than the E. coli, but pristine PC film did not exhibit any remarkable antibacterial characteristics. Further, the model fruit (Prunus) studies revealed that the PC/LE films retained the freshness of the fruits for more than 11 days. This study demonstrates that the PC/LE films have excellent antibacterial activities; thus, the films could be promising candidate for active antibacterial packaging applications.