Preparation of Antibacterial Nanofibre/Nanoparticle Covered Composite Yarns

Abstract

The antibacterial efficiency of nanofibre composite yarns with an immobilized antibacterial agent was tested. This novel type of nanofibrous composite material combines the good mechanical properties of the core yarn with the high specific surface of the nanofibre shell to gain specific targeted qualities. The main advantages of nanofibre covered composite yarns over the standard planar nanofibre membranes include high tensile strength, a high production rate, and their ability to be processed by standard textile techniques. The presented paper describes a study of the immobilization of an antibacterial agent and its interaction with two types of bacterial colonies. The aim of the study is to assess the applicability of the new composite nanomaterial in antibacterial filtration. During the experimental tests copper(II) oxide particles were immobilized in the polyurethane and polyvinyl butyral nanofibre components of a composite yarn. The antibacterial efficiency was evaluated by using both Gram-negativeEscherichia coliand Gram-positiveStaphylococcus gallinarumbacteria. The results showed that the composite yarn with polyvinyl butyral nanofibres incorporating copper(II) oxide nanoparticles exhibited better antibacterial efficiency compared to the yarn containing the polyurethane nanofibres. The nanofibre/nanoparticle covered composite yarns displayed good antibacterial activity against a number of bacteria.

Electrospinning of carboxymethyl starch/poly(L‐lactide acid) composite nanofiber

“…Electrospinning is a versatile technique for preparation of fine fibers down to a nanoscale size. An electrospun nanofiber provides high porosity, large surface area to volume ratio and good mechanical properties that can be used in various applications such as tissue engineering scaffold, filtration, and drug delivery system . In general, a needle electrospinning process consists of high voltage to create an electrical field between the electrodes.…”

Quantitative evaluation of antibacterial activities of nanoparticles (ZnO, TiO2, ZnO/TiO2, SnO2, CuO, ZrO2, and AgNO3) incorporated into polyvinyl butyral nanofibers

“…In addition, CuO/nanofiber hybrid yarn showed a disinfection effect for both Gram‐negative E. coli and Gram‐positive S . gallinarum …”

“…The excellent properties of PVB make PVB nanofibers very attractive for researchers . In previous work, it was found that PVB/NP nanofibers are a promising candidate for antibacterial materials . Herein, we compared the antibacterial efficiency of various particles incorporated into PVB nanofibers.…”

Electrospun Polyacrylonitrile Nanofibrous Membranes for Point‐of‐Use Water and Air Cleaning

“…However, this method still needs to optimize based on materials and the pattern of welding equipment. Other attempts to prevent damage of nanofiber webs have been done as nanofiber‐coated yarn . A macroscopic size random yarn has been used as core and nanofiber layer was covered around.…”