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26th Congress of SCTM

20–23 Sept 2023
Metropol Lake Resort, Ohrid
Europe/Skopje timezone

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Multifunctional cotton impregnated with multilayer chitosan/lignin nanocoating and Ag nanoparticles

Not scheduled
20m
Metropol Lake Resort, Ohrid

Metropol Lake Resort, Ohrid
Poster presentation

Speaker

Dr Darka Marković (Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Serbia)

Description

The demand for clothes with antimicrobial and UV protective properties is continually growing. In an attempt to develop a simple and efficient treatment for cotton fabrics, layer-by-layer deposition of chitosan and magnesium lignosulfonate followed by in situ synthesis of Ag nanoparticles (NPs) was performed. Magnesium lignosulfonate acts as a stabilizing agent and UV blocker while NaBH4 is applied as a reducing agent. The influence of the number of bilayers (4 and 12) and the initial concentration of AgNO3 solution (10 mM and 20 mM) on UV protection factor (UPF) and antimicrobial activity against Gram-negative bacteria Escherichia coli, Gram-positive bacteria Staphylococcus aureus and yeast Candida albicans was studied. The presence of nanocoating on the surface of cotton fabric is confirmed by FTIR and XPS analyses. XPS and FESEM analyses reveal a successful synthesis of Ag NPs on the surface of cotton fibers with an average dimension of 35 nm. A four bilayer coating is sufficient to reach maximum 50+ UV protection. Maximum reduction of all investigated microorganisms is achieved with 12 bilayers and application of 20 mM AgNO3 solution.

Primary author

Dr Darka Marković (Innovation Center of the Faculty of Technology and Metallurgy, University of Belgrade, Serbia)

Co-authors

Jovana Petkovska (Department of Textile Engineering, Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University, Skopje, Republic of North Macedonia) Mrs Nina Mladenovic (Department of Textile Engineering, Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University, Skopje, Republic of North Macedonia) Dr Marija Radoičić (“Vinča“ Institute of Nuclear Sciences, University of Belgrade, Belgrade, Serbia) Danixa Rodriguez-Melendez (Department of Chemistry, Texas A&M University, College Station, USA) Prof. Maja Radetić (Textile Engineering Department, Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia) Prof. Jaime Grunlan (Department of Chemistry, Texas A&M University, College Station, USA, Department of Materials Science and Engineering, Texas A&M University, College Station, USA, Department of Mechanical Engineering, Texas A&M University, College Station, USA) Prof. Igor Jordanov (Department of Textile Engineering, Faculty of Technology and Metallurgy, Ss. Cyril and Methodius University, Skopje, Republic of North Macedonia)

Presentation materials

33.pdf
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