engleski

Investigating organic-anorganic hybrid materials with natural compounds for wound dressings

Silica-cinnamon and silica-garlic hybrid materials were prepared and characterized as a potential new material for medical textiles, i.e. wound dressings. Wound dressings made using the most modern textile processes with the addition of antimicrobial agents and the like, depending on their purpose, are very efficient for their treatment. For the treatment of chronic wound a large number of wound dressings of various structural characteristics and mechanisms of action are used. Most of them are based on high performance fabrics in form of non-woven with different collagen products/alginate fibres/ foams or hydrogels with antimicrobial compounds such as silver, betaine, chitin, or polyhexamethylene biguanide etc. to try to both protect the healing wound from infection and also to help promote the wound healing process itself. Some of new research in wound healing have focused on novel molecules of interest such as nitric oxide but for some chronic wounds the answer could be in the nature with naturally compounds honey, curcuma, aloe vera, cinnamon, garlic, peppermint oil, etc. Cinnamomum verum (cinnamon) and Allium sativum (garlic) contain compounds with a wide range of proven antibacterial, antiviral, antipyretic, anti-inflammatory and antifungal properties. Silica-cinnamon and silica-neem hybrid cotton fabrics were prepared by dip-coating from 3-glycidyloxypropyltrimethoxysilane (GLYMO) as a precursor with catalyst and with commercially available powder of cinnamon and granule of garlic. The aim was to achieve cinnamon / garlic evenly distributed and represented along the fibres, still present in sufficiently quantity after laundering. The coatings were characterized by infrared spectroscopy (FTIR-ATR), scanning electron microscopy (SEM) and crease recovery angle. Determination of antibacterial activity was performed by agar diffusion plate test to Staphylococcus and Escherichia coli.

natural compounds, medical textiles, wound dressings

Rad je nastao u okviru Hrvatsko-austrijskog projekta 2018./2019. ; Tekstilo-tehnološki fakultet Zagreb, voditelj izv. prof. dr. sc. sc. Iva Rezić ; Utjecaj raspoloživosti kationa i aniona iz biomase na lignocelulozne enzime i primjena u tekstilnoj industriji Universität für Bodenkultur Wien, partner dr. sc. Roland Ludwig