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Article

Proactive Release of Antimicrobial Essential Oil from a “Smart” Cotton Fabric

1
Department of Textiles, Graphic Arts and Design, Faculty of Natural Sciences and Engineering, University of Ljubljana, Aškerčeva 12, 1000 Ljubljana, Slovenia
2
National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia
3
The Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000 Ljubljana, Slovenia
*
Author to whom correspondence should be addressed.
Coatings 2019, 9(4), 242; https://doi.org/10.3390/coatings9040242
Received: 25 March 2019 / Revised: 5 April 2019 / Accepted: 7 April 2019 / Published: 10 April 2019
(This article belongs to the Special Issue Functional Coatings for Textile Applications)
Two temperature and pH responsive submicron hydrogels based on poly(N- methylenebisacrylamide), chitosan and β-cyclodextrines (PNCS/CD hydrogel) with varying poly(N-isopropylacrylamide) to chitosan ratios were synthesized according to a simplified procedure, reflecting improved stimuli responsive properties and excellent bio-barrier properties, granted by incorporated chitosan. Hydrogels were applied to cotton-cellulose fabric as active coatings. Subsequently, antimicrobially active savory essential oil (EO) was embedded into the hydrogels in order to develop temperature- and pH-responsive cotton-cellulose fabric with double antimicrobial activity, i.e., bio-barrier formation of chitosan along with the proactive release of savory EO at predetermined conditions. The influence of the hydrogels chemical composition on stimuli responsive and antibacterial properties were assessed. Both PNCS/CD hydrogels showed stimuli responsiveness along with controlled release of savory EO. The chemical composition of the hydrogels strongly influenced the size of the hydrogel particles, their temperature and pH responsiveness, and the bio-barrier forming activity. The increased concentration of chitosan resulted in superior overall stimuli responsiveness and excellent synergy between the antimicrobial activities of the hydrogel and released savory EO. View Full-Text
Keywords: antimicrobial activity; chitosan; essential oils; smart textiles; stimuli-responsive hydrogel; β-cyclodextrin antimicrobial activity; chitosan; essential oils; smart textiles; stimuli-responsive hydrogel; β-cyclodextrin
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MDPI and ACS Style

Štular, D.; Šobak, M.; Mihelčič, M.; Šest, E.; German Ilić, I.; Jerman, I.; Simončič, B.; Tomšič, B. Proactive Release of Antimicrobial Essential Oil from a “Smart” Cotton Fabric. Coatings 2019, 9, 242. https://doi.org/10.3390/coatings9040242

AMA Style

Štular D, Šobak M, Mihelčič M, Šest E, German Ilić I, Jerman I, Simončič B, Tomšič B. Proactive Release of Antimicrobial Essential Oil from a “Smart” Cotton Fabric. Coatings. 2019; 9(4):242. https://doi.org/10.3390/coatings9040242

Chicago/Turabian Style

Štular, Danaja, Matic Šobak, Mohor Mihelčič, Ervin Šest, Ilija German Ilić, Ivan Jerman, Barbara Simončič, and Brigita Tomšič. 2019. "Proactive Release of Antimicrobial Essential Oil from a “Smart” Cotton Fabric" Coatings 9, no. 4: 242. https://doi.org/10.3390/coatings9040242

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