Preparation of anti-bacterial cellulose fiber via electrospinning and crosslinking with β-cyclodextrin

Abstract

In the study, we successfully produced electrospun cellulose fibers crosslinked with β-CD. For electrospinning, cellulose was dissolve in 1-ethyl-3-methylimidazolium acetate and DMF was added to the prepared solution for better spinnability. The prepared cellulose fiber was immersed in the solution containing β-CD, crosslinking agent and sodium hypophosphite. In order to understand the effect of a crosslinking agent, two different types of the agents, BTCA (1,2,3,4-butanetetracarboxylic acid) and citric acid with various concentrations were used for cross-linking. The crosslinking degree was increased with the concentration of the crosslinking agents, for the both agents. The cross-linked web changed into membrane like morphology when the concentration of the cross-linking agent was higher than 5 wt%. The concentration of crosslinking agent also gave influence on the crystallinity, the thermal property and the antibacterial activity of fibers. Due to the cross-linking the crystallinity was decreased. The cross-linked fiber showed selective bacterial behavior according to the bacterial strain and the cross-linking agent.

Adsorption of Fatty Acid on Beta-Cyclodextrin Functionalized Cellulose Nanofiber

“…The result based on this FTIR spectrum clearly indicates the effective crosslinking of citric acid with β-CD and CNF. Similar results were also reported by other studies including cyclodextrin functionalized cellulose nanofiber composites [33] as well as cellulose fiber synthesis via electrospinning and crosslinking with β-cyclodextrin [34].…”

Effective Use of Cinnamon Essential Oil Encapsulated in β-cyclodextrin Citrate as an Antimicrobial for Food Packaging

“…Moreover, the band at 890 cm -1 was the distinctive band of α-(1,4) glucopyranose in β-cyclodextrin citrate (Yuan et al, 2013). The very poor solubility of β-CD in water, which does not allow the direct dissolution for film casting procedure, can be improved through chemical modification of the external hydrophilic groups at 2, 3, and 6 positions (Kang, et al, 2015).…”

Cotton Cord Coated with Cyclodextrin Polymers for Paraquat Removal from Water

“…A tetrafunctional cross-linking agent (1,2,3,4-butanetetracarboxylic acid (BTCA)) was used as a bridging agent to establish the cross-linked network with cyclodextrin to form insoluble nanosponges for the adsorption of bisphenol A, radionuclides (Uranium (VI) and Europium (III)) [ 48 ], and paraquat [ 17 , 19 , 22 ]. BTCA was also used to react with cellulose [ 49 , 50 ], starch [ 51 ], poly (vinyl alcohol) [ 52 , 53 ], and wool [ 54 ]. Interestingly, poly (vinyl alcohol) is a linear water-soluble polymer with the existence of hydroxyl groups, which show an outstanding degree of swelling, biodegradability, and nontoxicity that is possible to also esterify with BTCA.…”