RESUMO
Here, cellulose was cross-linked with folic acid (FA) using tetrafluoroborate (TBTU) and carbodiimide (DIC) as coupling reagents through the pad method at room temperature. The interactions between FA and cellulose were proposed and determined with FTIR, and UV-visible also confirmed with nitrogen content. The newly formed ester peak showed the grafting of FA to the cellulose through esterification followed by cellulose cross-linking. The surface morphology of treated fabrics indicated no significant changes and also remained similar after 5 washing cycles. This had no negative impacts on the various physical and mechanical fabric features. The fabric color was changed with reasonable fastness to laundering and light. More FA showed higher N content indicating more bacterial killing for Pseudomonas aeroginosa (Psa) and Methicillin-Resistant Staphylococcus (MRSA). The reasonable viability of L929 and MCF-7 cells showed for treated fabric with FA below 5 %.
