4.5 Article

Development of sodium alginate/PVA antibacterial nanofibers by the incorporation of essential oils

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MATERIALS RESEARCH EXPRESS
卷 5, 期 3, 页码 -

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IOP Publishing Ltd
DOI: 10.1088/2053-1591/aab0b4

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nanofibers; antibacterial; dressing; Sodium Alginate

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Electrospinning is a well known method for the manufacturing of nanoscale fibers. Electrospun nanofibers have higher surface area to volume ratio and can be used for the incorporation of different materials. Essential oils are well known for their antimicrobial and healing properties since ancient times. The main objective of this study was to develop antibacterial nanofibers by the incorporation of essential oils in sodium alginate/PVA solution. Sodium alginate and PVA have excellent biocompatible properties which are the base of their use in wound care applications. Three different essential oils (cinnamon, clove, and lavender) at three different concentrations (0.5, 1 and 1.5%) were used to optimize the fiber forming conditions during electrospinning and then the desired antibacterial properties were evaluated. Addition of oils in PVA/SA solutions increased the viscosity but reduced the surface tension and conductivity as compared to pure PVA/sodium alginate solution. FTIR Spectra of composite fibers verified the successful incorporation of essential oils in nanofibers through electrospinning. All oil containing samples showed good antibacterial properties against staphylococcus aureus which make them a good replacement of antibiotics. Cinnamon oil loaded nanofibers showed the best results among selected oils regarding the antibacterial properties. Nanofibers with 1.5% cinnamon oil exhibited highest zone of inhabitation of 2.7 cm. Nanofibrous coated cotton gauze showed higher liquid absorptions as compared to simple cotton gauze and potential to be used as wound dressings for its improved liquid absorption and antibacterial activity.

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