Browsing by Author "Swar Sumita"
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- ItemBiocompatible Surface Modification of Poly(ethylene Terephthalate) Focused on Pathogenic Bacteria: Promising Prospects in Biomedical Applications(Wiley-Blackwell, 2017) Zajícová Veronika; Rysová Miroslava; Lovětinská Šlamborová Irena; Voleský Lukáš; Stibor Ivan; Swar Sumita
- ItemThe Covalent Tethering of Poly(ethylene glycol) to Nylon 6 Surface via N,N&prime-Disuccinimidyl Carbonate Conjugation: A New Approach in the Fight against Pathogenic Bacteria(2020) Swar Sumita; Máková Veronika; Stibor Ivan
- ItemEffective poly(ethylene glycol) methyl ether grafting technique onto Nylon 6 surface to achieve resistance against pathogenic bacteria Staphylococcus aureus and Pseudomonas aeruginosa.(Kluwer Academic Publishers, 2018) Swar Sumita; Máková Veronika; Müllerová Jana; Horáková Jana; Dolenský Bohumil; Řezanka Michal; Stibor Ivan; Šubrtová PetraOur study is focused on an efficient reduction of amide functional groups to secondary amine on Nylon 6 surface with borane–tetrahydrofuran (BH3–THF) complex, followed by N-alkylation with benzyl chloride (C6H5CH2Cl) which has been successfully used as a model system for further grafting of the reduced Nylon 6 surface by poly(ethylene glycol) methyl ether tosylate (Me-PEG-OTs). The amine-activated surface has been obtained by treatment of reduced Nylon 6 with n-butyllithium or tert-butyllithium in THF. Modified Nylon 6 has been found to be antibacterial particularly due to the presence of hydrophilic poly(ethylene glycol) methyl ether (H3C-PEG) chains. The surface modifications were successfully characterized by various techniques. Water contact angle and free surface energy analyses indicated a significant change in the surface morphology. It was further supported by scanning electron microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy and Raman spectroscopy. Finally, antibacterial tests were performed against two pathogenic bacterial strains Pseudomonas aeruginosa (CCM 3955) and Staphylococcus aureus (CCM 3953).
- ItemImportance and necessity of the surface modification of nylon 6 films for future biomedical application(TANGER LTD, KELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH REPUBLIC, 2016) Swar Sumita; Zajícová Veronika; Müllerová Jana; Voleský Lukáš; Stibor Ivan
- ItemPre-treatment of Polyethylene Terephthalate by Grignard Reagents for High Quality Polypyrrole Coatings And for Altering the Hydrophobicity(Springer Nature, 2017) Martinek Michal; Swar Sumita; Zajícová Veronika; Voleský Lukáš; Blažková Lenka; Müllerová Jana; Stuchlík Martin; Řezanka Michal; Stibor Ivan