Vpliv nanotehnološkega postopka kemijske modifikacije na protimikrobno aktivnost in biorazgradljivost tekstilnih vlaken

Ana Bras,Brigita Tomšič,Kristina Gramc,Marija Gorjanc,Tjaša Rozman,Mateja Kert,Barbara Simončič

doi:10.14502/tekstilec2017.60.14-24

Abstract

Vpliv nanotehnološkega postopka kemijske modifikacije na protimikrobno aktivnost in biorazgradljivost tekstilnih vlaken

Highlights

The introduction of nanotechnological processes, such as plasma treatment [1, 2], sol-gel technology [3, 4] and the application of nanoparticles [5, 6], has enabled breakthroughs in the production of textile products with unique properties and high added value
Scanning electron microscopy (SEM)/energy–dispersive X–ray spectroscopy (EDS) analysis revealed bright spots on the samples treated in the solutions of AgNO3 and nitrate (AgNO3) and sodium chloride (NaCl), which prove the formation of silver chloride (AgCl) particles in the in situ synthesis (Figure 2)
A three-step nanotechnological process for chemical modification of textile fibres consisting of plasma treatment followed by silica matrix creation and in situ synthesis of silver nanoparticles was successfully introduced with the aim of increasing the fibres’ antimicrobial activity

Summary

Introduction

The introduction of nanotechnological processes, such as plasma treatment [1, 2], sol-gel technology [3, 4] and the application of nanoparticles [5, 6], has enabled breakthroughs in the production of textile products with unique properties and high added value. In the process of chemical modification of textile fibres, organofunctional trialkoxysilanes that are the representatives of inorganic-organic hybrid (IOH) sol-gel precursors with a general formula R’-Si(OR) are of great importance [3, 10, 11]. The antimicrobial activity of silver nanoparticles is directly influenced by their particle size Because of their larger specific area, smaller particles have a greater reactivity than larger ones. To decrease the particle size as well as to increase the uniformity of their distribution, particles were incorporated into different matrixes, among them a sol-gel matrix [13, 14] To this end, different application processes were used, with in situ synthesis recognized as the most ecologically acceptable [19, 20]. The advantages of nanotechnological processes encouraged us to introduce a three-stage procedure for chemical modification of textile fibres to achieve their antimicrobial activity. Whereas the first two objectives can provide insight into the effectiveness of the process of fibre functionalisation, the third will produce information about the sustainability of the introduced procedure of chemical modification

Objectives

Methods

Results

Conclusion