Title | New biomaterial based on cotton with incorporated Biomolecules |
Publication Type | Papers in Scientific Journals |
Year of Publication | 2014 |
Authors | Gomes A. P., Mano J. F., Queiroz J. A., and Gouveia I. C. |
Abstract | The aim of this study was to investigate a method of embedding l-cysteine (l-cys), an antimicrobial agent, between layers of chitosan (CH) and sodium alginate (ALG) onto cotton samples obtained via a layer-by-layer electrostatic deposition technique via several embedding methods. The results show that the best way to incorporate l-cys into the layers was the one that used the property of gelling ALG. To monitor the l-cys embedding into the CH/ALG multilayer film, different methods were used: energy-dispersive X-ray spectrometry analysis to assess the presence of sulfur on the sample, Ellman's reagent method to analyze l-cys release from the sample, and attenuated total reflectance (ATR) Fourier transform infrared spectroscopy (FTIR) to compare the ATR–FTIR spectra of the pure l-cys and l-cys embedded in the CH/ALG multilayer film to study the interaction between the l-cys and the CH/ALG multilayer films. Functionalized CH/ALG cotton samples were also investigated for their antibacterial properties toward Staphylococcus aureus andKlebsiella pneumonia with the Japanese Industrial Standard method JIS L 1902:2002, and the results show an enhancement of the antibacterial effect due to the presence of l-cys. |
Journal | Journal of Applied Polymer Science |
Volume | 131 |
Issue | 15 |
Date Published | 2014-11-05 |
DOI | 10.1002/app.40519 |
Keywords | Biomaterials, BIOMEDICAL APPLICATIONS, functionalization of polymers, self-assembly, textiles |
Rights | openAccess |
Peer reviewed | yes |
Status | published |