Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity
Modified rice straw/Fe3O4/polycaprolactone nanocomposites (ORS/Fe3O4/ PCL-NCs) have been prepared for the first time using a solution casting method. The RS/Fe3O4-NCs were modified with octadecylamine (ODA) as an organic modifier. The prepared NCs were characterized by using X-ray powder diffraction...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/35504/1/Studies%20on%20Properties%20of%20Rice%20Straw%20Polymer%20Nanocomposites.pdf |
| _version_ | 1825948659796148224 |
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| author | Khandanlou, Roshanak Ahmad @ Ayob, Mansor Shameli, Kamyar Saki, Elnaz Kalantari, Katayoon |
| author_facet | Khandanlou, Roshanak Ahmad @ Ayob, Mansor Shameli, Kamyar Saki, Elnaz Kalantari, Katayoon |
| author_sort | Khandanlou, Roshanak |
| collection | UPM |
| description | Modified rice straw/Fe3O4/polycaprolactone nanocomposites (ORS/Fe3O4/ PCL-NCs) have been prepared for the first time using a solution casting method. The RS/Fe3O4-NCs were modified with octadecylamine (ODA) as an organic modifier. The prepared NCs were characterized by using X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FT-IR). The XRD results showed that as the intensity of the peaks decreased with the increase of ORS/Fe3O4-NCs content in comparison with PCL peaks, the Fe3O4-NPs peaks increased from 1.0 to 60.0 wt. %. The TEM and SEM results showed a good dispersion of ORS/Fe3O4-NCs in the PCL matrix and the spherical shape of the NPs. The TGA analysis indicated thermal stability of ORS/Fe3O4-NCs increased after incorporation with PCL but the thermal stability of ORS/Fe3O4/PCL-NCs decreased with the increase of ORS/Fe3O4-NCs content. Tensile strength was improved with the addition of 5.0 wt. % of ORS/Fe3O4-NCs. The antibacterial activities of the ORS/Fe3O4/PCL-NC films were examined against Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus) by diffusion method using nutrient agar. The results indicated that ORS/Fe3O4/PCL-NC films possessed a strong antibacterial activity with the increase in the percentage of ORS/Fe3O4-NCs in the PCL. |
| first_indexed | 2024-03-06T08:32:32Z |
| format | Article |
| id | upm.eprints-35504 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T08:32:32Z |
| publishDate | 2014 |
| publisher | MDPI AG |
| record_format | dspace |
| spelling | upm.eprints-355042018-10-11T03:44:52Z http://psasir.upm.edu.my/id/eprint/35504/ Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity Khandanlou, Roshanak Ahmad @ Ayob, Mansor Shameli, Kamyar Saki, Elnaz Kalantari, Katayoon Modified rice straw/Fe3O4/polycaprolactone nanocomposites (ORS/Fe3O4/ PCL-NCs) have been prepared for the first time using a solution casting method. The RS/Fe3O4-NCs were modified with octadecylamine (ODA) as an organic modifier. The prepared NCs were characterized by using X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FT-IR). The XRD results showed that as the intensity of the peaks decreased with the increase of ORS/Fe3O4-NCs content in comparison with PCL peaks, the Fe3O4-NPs peaks increased from 1.0 to 60.0 wt. %. The TEM and SEM results showed a good dispersion of ORS/Fe3O4-NCs in the PCL matrix and the spherical shape of the NPs. The TGA analysis indicated thermal stability of ORS/Fe3O4-NCs increased after incorporation with PCL but the thermal stability of ORS/Fe3O4/PCL-NCs decreased with the increase of ORS/Fe3O4-NCs content. Tensile strength was improved with the addition of 5.0 wt. % of ORS/Fe3O4-NCs. The antibacterial activities of the ORS/Fe3O4/PCL-NC films were examined against Gram-negative bacteria (Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus) by diffusion method using nutrient agar. The results indicated that ORS/Fe3O4/PCL-NC films possessed a strong antibacterial activity with the increase in the percentage of ORS/Fe3O4-NCs in the PCL. MDPI AG 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/35504/1/Studies%20on%20Properties%20of%20Rice%20Straw%20Polymer%20Nanocomposites.pdf Khandanlou, Roshanak and Ahmad @ Ayob, Mansor and Shameli, Kamyar and Saki, Elnaz and Kalantari, Katayoon (2014) Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity. International Journal of Molecular Sciences, 15 (10). pp. 18466-18483. ISSN 1422-0067 http://www.mdpi.com/1422-0067/15/10/18466 10.3390/ijms151018466 |
| spellingShingle | Khandanlou, Roshanak Ahmad @ Ayob, Mansor Shameli, Kamyar Saki, Elnaz Kalantari, Katayoon Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity |
| title | Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity |
| title_full | Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity |
| title_fullStr | Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity |
| title_full_unstemmed | Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity |
| title_short | Studies on properties of rice straw/polymer nanocomposites based on polycaprolactone and Fe₃O₄ nanoparticles and evaluation of antibacterial activity |
| title_sort | studies on properties of rice straw polymer nanocomposites based on polycaprolactone and fe₃o₄ nanoparticles and evaluation of antibacterial activity |
| url | http://psasir.upm.edu.my/id/eprint/35504/1/Studies%20on%20Properties%20of%20Rice%20Straw%20Polymer%20Nanocomposites.pdf |
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