Bioactive Composite Nonwoven Surgical Dressing based on Cellulose Coated with Nanofiber Membrane using the layer-by-layer technique

Abstract

Nonwoven fabric with a cellulosic base has many features, including the ability to absorb biological fluids and can easily adapt to different types and locations of wounds, which makes it common and unique in surgical dressing. The study aimed to design different samples made of one layer and two layers of nonwoven fabrics for the inner layer of deep endoscopic wound dressings to control the biological fluid leakage. 100% cotton, 100% viscose, and viscose/polyester (70:30) were used as onelayer samples, and the two different materials were used interchangeably to design the two-layer (layer-by-layer) samples. One-layer samples were dyed using green coffee extraction, while the two-layer samples were enhanced by adding powdered green coffee between them, as an innovative use in the surgical dressing applications. An electrospinning technique was used to form a delicate membrane of Ciprofloxacin (CIP) antibiotic and Kylie Collagen to coat the single-layer samples without coffee dyeing to compare their performance with the dyed samples. Also, to compare the results of the two layers of samples that were enhanced with green coffee powder with and without the coating nanofibers membrane, Designed samples were evaluated for mechanical and physical properties for nonwoven fabrics, in addition to FTIR, SEM, absorbency and antimicrobial activity, and K/S, especially for dyed samples, and finally cytotoxicity for CIP, Kylie collagen, and green coffee. The results pointed to the fact that the dyed one-layer samples with green coffee extraction achieved a highperformance function for air permeability and antimicrobial activity, while the layer-by-layer samples that were enhanced by adding green coffee powder showed improvement for strength, absorbency properties, and antimicrobial activity, especially for the samples made of cotton/viscose layers and viscose/viscose blended polyester layers, followed by the sample of cotton/viscose blended polyester layers that were coated with 0.1wt% CIP antibiotic and the Kylie Collagen membrane.

Constructing Fireproof MXene-Based Cotton Fabric/Thermoplastic Polyurethane Hierarchical Composites via Encapsulation Strategy

“…21 However, cotton fabrics are easily ignited, which causes the rapid spread of flame. 22 With the increasing demand for flame retardant textiles, there are some advances in flame-retardant technology of textiles. 23,24 For example, surface modifications, including chemical grafting, 25 layer-by-layer (LBL) assembly, 26 spraying 27 and dip coating, 28 are convenient and efficient approaches to impart flame retardancy to combustible materials.…”

“…It is worth noting that cotton fabrics have acquired wide applications in the realms of clothing, bedding, and home furnishing . However, cotton fabrics are easily ignited, which causes the rapid spread of flame …”

Innovation of anti-viral, anti-bacterial and water-repellent textile wall hanging, depending on nanotechnology and modern printing technologies

“…That is why it gains the attention of creative designers to produce a different way to the art. Due to the pandemic of coronavirus, the reaction between art and science became a must, in order to produce a unique product with special properties [1][2][3][4][5].…”

Enhancement of Antimicrobial and Dyeing Properties of Cellulosic Fabrics via Chitosan Nanoparticles

“…CSNPs have a high surface area and zeta potential stability. Therefore, CSNPs have higher biological activity than CS [ 21 , 22 , 23 , 24 , 25 ], especially in drug, gene, and vaccine delivery [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 ]. Therefore, CSNPs can be used to enhance cellulosic dyeability and antimicrobial activity more than CS itself [ 38 , 39 , 40 ].…”