Electrospinning chitosan/poly(ethylene oxide) solutions with essential oils: Correlating solution rheology to nanofiber formation

Rieger, Katrina A.; Birch, Nathan P.; Schiffman, Jessica D.

doi:10.1016/j.carbpol.2015.11.073

Cited by 91 publications

(55 citation statements)

References 63 publications

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“…Electrospinning of pure chitosan solution leads to the formation of beads instead of fine nanofibers. Then, taking into account data from literature [10,17,18,35,36,42], it was decided to mix chitosan with PEO, allowing for better electrospinning.…”

Section: Resultsmentioning

confidence: 99%

“…A wide range of methods has been used to produce chitosan-based nanofibrous materials, typically electrospinning which has received a lot of attention in several scientific studies [1,15]. Electrospinning of chitosan has been improved, optimizing the affecting factors such as the solution properties (viscosity, surface tension and conductivity) [16,17,18], processing parameters and ambient conditions [16,19,20,21,22]. …”

Section: Introductionmentioning

confidence: 99%

“…The use of ionic liquid was also mentioned with 1,1,1,3,3,3-hexafluoro-2-propanol [28]. More generally, it has been shown that fine nanofibers can be obtained in chitosan blends with poly (vinyl alcohol) (PVA) [23,25,29,30], gelatin or collagen [2,7,31,32,33,34], silk fibroin [5], polycaprolactone [35] but mainly with poly(ethylene oxide) (PEO) [6,17,18,36,37,38,39,40,41]. Usually, to generate composite fibers the spinning solutions are obtained by mixing the two polymers solutions prepared separately in the same solvent.…”

Section: Introductionmentioning

confidence: 99%

“…The chitosan molecular weight from which nanofibers have been obtained varies from 85 kg/mol [42] up to 570 kg/mol [18,27,39], nevertheless the real molecular weight is often difficult to obtain precisely due to the presence of aggregates [11]. Most generally moderate molecular weights in the range of 100 to 200 kg/mol, used in different solvents.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Pure and Stable Chitosan Nanofibers by Electrospinning in the Presence of Poly(ethylene oxide)

Lemma

Bossard

Rinaudo³

2016

IJMS

101

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Electrospinning was employed to obtain chitosan nanofibers from blends of chitosans (CS) and poly(ethylene oxide) (PEO). Blends of chitosan (MW (weight-average molecular weight) = 102 kg/mol) and PEO (M (molecular weight) = 1000 kg/mol) were selected to optimize the electrospinning process parameters. The PEO powder was solubilized into chitosan solution at different weight ratios in 0.5 M acetic acid. The physicochemical changes of the nanofibers were determined by scanning electron microscopy (SEM), swelling capacity, and nuclear magnetic resonance (NMR) spectroscopy. For stabilization, the produced nanofibers were neutralized with K2CO3 in water or 70% ethanol/30% water as solvent. Subsequently, repeated washings with pure water were performed to extract PEO, potassium acetate and carbonate salts formed in the course of chitosan nanofiber purification. The increase of PEO content in the blend from 20 to 40 w% exhibited bead-free fibers with average diameters 85 ± 19 and 147 ± 28 nm, respectively. Their NMR analysis proved that PEO and the salts were nearly completely removed from the nanostructure of chitosan, demonstrating that the adopted strategy is successful for producing pure chitosan nanofibers. In addition, the nanofibers obtained after neutralization in ethanol-aqueous solution has better structural stability, at least for six months in aqueous solutions (phosphate buffer (PBS) or water).

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Preparation of Pure and Stable Chitosan Nanofibers by Electrospinning in the Presence of Poly(ethylene oxide)

Lemma

Bossard

Rinaudo³

2016

IJMS

101

View full text Add to dashboard Cite

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“…The lower boiling point solvents undergo the quicker evaporations after the spraying and splitting of an unstable jet [5]. Various polymers, such as poly (vinyl alcohol) (PVA) [6], poly(ethylene oxide) PEO [7,8], and polyacrylonitril (PAN) [9], have been used in the past to examine the effect of fiber formation parameters.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Properties of Electrospun Poly (Vinyl Pyrrolidone)/Cellulose Nanocrystal/Silver Nanoparticle Composite Fibers

et al. 2016

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Poly (vinyl pyrrolidone) (PVP)/cellulose nanocrystal (CNC)/silver nanoparticle composite fibers were prepared via electrospinning using N,N′-dimethylformamide (DMF) as a solvent. Rheology, morphology, thermal properties, mechanical properties, and antimicrobial activity of nanocomposites were characterized as a function of material composition. The PVP/CNC/Ag electrospun suspensions exhibited higher conductivity and better rheological properties compared with those of the pure PVP solution. The average diameter of the PVP electrospun fibers decreased with the increase in the amount of CNCs and Ag nanoparticles. Thermal stability of electrospun composite fibers was decreased with the addition of CNCs. The CNCs help increase the composite tensile strength, while the elongation at break decreased. The composite fibers included Ag nanoparticles showed improved antimicrobial activity against both the Gram-negative bacterium Escherichia coli (E. coli) and the Gram-positive bacterium Staphylococcus aureus (S. aureus). The enhanced strength and antimicrobial performances of PVP/CNC/Ag electrospun composite fibers make the mat material an attractive candidate for application in the biomedical field.

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Interfacing Electrospun Nanofibers with Microorganisms

Diep¹,

Kurtz²,

Schiffman³

2022

Applications of Polymer Nanofibers

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Electrospinning chitosan/poly(ethylene oxide) solutions with essential oils: Correlating solution rheology to nanofiber formation

Cited by 91 publications

References 63 publications

Preparation of Pure and Stable Chitosan Nanofibers by Electrospinning in the Presence of Poly(ethylene oxide)

Preparation of Pure and Stable Chitosan Nanofibers by Electrospinning in the Presence of Poly(ethylene oxide)

Preparation and Properties of Electrospun Poly (Vinyl Pyrrolidone)/Cellulose Nanocrystal/Silver Nanoparticle Composite Fibers

Interfacing Electrospun Nanofibers with Microorganisms

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