A Study of Antimicrobial Property of Textile Fabric Treated with Modified Dendrimers

摘要

Dendrimers have been used as a vehicle todevelop the antimicrobial properties of textile fabrics. Wehave taken advantage of the large number of functionalgroups present in the regular and highly branched three-dimensional architecture of dendrimers. In this study, thepoly(amidoamine) (PAMAM) G-3 dendrimer was modifiedto provide antimicrobial properties. Following a proceduresimilar to what is suggested in the literature, PAMAM (G3)with primary amine end groups was converted into ammo-nium functionalities. The modification was then confirmedby FTIR and ~(13)C-NMR analysis. Dendrimers have uniqueproperties owing to their globular shape and tunable cav-ities, this allows them to form complexes with a variety ofions and compounds; and also act as a template to fabricate metal nanoparticles. AgNO_3—PAMAM (G3) complex as wellas a MesoSilver—PAMAM (G3) complex were formed andthese modified dendrimers were characterized by a UV—Visible spectrophotometer to study the complex formation.Modified dendrimers were applied to the Cotton/Nylonblend fabric. SEM and EDX analysis were performed tostudy the dispersion of silver nanoparticles onto the fabric.An antimicrobial test of the treated-fabric against Staphylo-coccus aureus exhibited significant biocidal activities for eachtype of modified-dendrimer.