Surface properties and antibacterial testing of a partially alicyclic polyimide film modified by RF plasma and NaOH/AgNO3 treatment |
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| Institution: | 1. “Petru Poni” Institute of Macromolecular Chemistry, Iasi 700487, Romania;2. University “POLITEHNICA” of Bucharest, 011061 Bucharest, Romania;3. “Alexandru Ioan Cuza” University, Faculty of Biology, 700506 Iasi, Romania;1. Nuclear Physics Institute of the Czech Academy of Sciences, v. v. i., 250 68 Rez, Czech Republic;2. Department of Physics, Faculty of Science, J.E. Purkinje University, Ceske Mladeze 8, 400 96 Usti nad Labem, Czech Republic;3. Department of Inorganic Chemistry, University of Chemistry and Technology, 166 28 Prague, Czech Republic;4. Institute of Ion Beam Physics and Materials Research, Helmholtz Zentrum Dresden-Rossendorf, 01328 Dresden, Germany;1. Karlsruhe Institute of Technology (KIT), Institute of Microstructure Technology, Karlsruhe, Germany;2. Tohoku University, Institute of Multidisciplinary Research for Advanced Materials, Sendai, Japan;3. Tohoku University, Frontier Research Institute for Interdisciplinary Sciences, Sendai, Japan;4. Tohoku University, Institute of Fluid Science, Sendai, Japan;1. National Isotope Centre, GNS Science, PO Box 31312, Lower Hutt 5010, New Zealand;2. The MacDiarmid Institute for Advanced Materials and Nanotechnology, PO Box 600, Wellington 6140, New Zealand;1. Department of Physics, Faculty of Science, Al-Azahar University, Assiut 71542, Egypt;2. Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia;3. Nano-Science & Semiconductor Labs, Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt;4. Physics Department, Faculty of Science, Assiut University, Assiut, Egypt;5. Thin Film Laboratory, Department of Physics, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt;6. Institute of Physics, Polish Academy of Sciences, Al. Lotnikow, 32/46, 02-668 Warszawa, Poland;1. Physics Department, Harbin Institute of Technology, Harbin 150001, China;2. National Key Lab of Materials Behaviors and Evaluation Technology in Space Environments, Harbin Institute of Technology, Harbin 150001, China;3. Chinese Academy of Sciences, Beijing 100029, China;4. Qian Xuesen Laboratory of Space Technology, Beijing 100029, China;5. Lanzhou Institute of Physics, CAST, Lanzhou 730000, China;1. Department of Physics, MIT Campus, Anna University, Chennai 600044, India;2. Division of Applied Physics, University of Tsukuba, Ibaraki 305-8573, Japan;3. Department of Nuclear Physics, Guindy Campus, University of Madras, Chennai 600025, India |
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| Abstract: | A polyimide containing alicyclic sequences was synthesized by a two steps solution polycondensation reaction and further processed into the film form for antibacterial purposes. The sample surface was activated by RF plasma treatment to ensure the biocide attachment by immersion in by NaOH/AgNO3 solution. Surface properties of the synthesized polyimide film were analyzed by FTIR, contact angle and atomic force microscopy measurements, before and after the treatments with plasma and silver-based biocide. Antibacterial tests revealed that the pristine sample inhibit the growth of Staphylococcus aureus ATCC 25923 and Escherichia coli ATCC 25922, and this behavior is more pronounced after the biocide surface treatment. The differences in the biocidal activity were discussed in terms of sample and bacteria hydrophobic/hydrophilic interactions. |
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| Keywords: | Polyimide Plasma Silver-based biocide Antibacterial activity |
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