| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8039587 | Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms | 2016 | 8 Pages |
Abstract
Polycarbonate (PC) polymers were investigated before and after high energy heavy ion irradiation for anti-bacterial properties. These PC films were irradiated by Fe heavy ions with two energies, viz, 60 and 120Â MeV, at different fluences in the range from 1Â ÃÂ 1011Â ions/cm2 to 1Â ÃÂ 1013Â ions/cm2. UV-Visible spectroscopic results showed optical band gap decreased with increase in ion fluences due to chain scission mainly at carbonyl group of PC which is also corroborated by Fourier transform infrared spectroscopic results. X-ray diffractogram results showed decrease in crystallinity of PC after irradiation which leads to decrease in molecular weight. This is confirmed by rheological studies and also by differential scanning calorimetric results. The irradiated PC samples showed modification in their surfaces prevents biofilm formation of human pathogen, Salmonella typhi.
Related Topics
Physical Sciences and Engineering
Materials Science
Surfaces, Coatings and Films
Authors
R.P. Joshi, K. Hareesh, A. Bankar, Ganesh Sanjeev, K. Asokan, D. Kanjilal, S.S. Dahiwale, V.N. Bhoraskar, S.D. Dhole,