Novel mosquito repellent fiber mat containing nepeta essential oil prepared by coaxial electrospinning

Zhang, Zhongkai; Yang, Kongtan; Han, Xiao; Yu, Xiaobin; Cheng, Zhiqiang

doi:10.1002/pat.5760

Cited by 6 publications

(5 citation statements)

References 27 publications

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“…Nepeta essential oil (NEO) has been widely studied due to its effective mosquito repellent effect. 6,7 Some studies have pointed out that the mosquito repellent property of NEO is better than that of nepetalactone monomer (the main component of NEO). This suggests that some components of NEO may have synergistic mosquito repellent effects.…”

Section: Introductionmentioning

confidence: 99%

“…Essential oils are volatile substances extracted from natural plants and are nontoxic to humans and animals. Nepeta essential oil (NEO) has been widely studied due to its effective mosquito repellent effect 6, 7 . Some studies have pointed out that the mosquito repellent property of NEO is better than that of nepetalactone monomer (the main component of NEO).…”

Section: Introductionmentioning

confidence: 99%

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Mosquito repellent microcapsules of nepeta essential oil were prepared by electro‐atomization complex coacervation

Zhang

Pei

et al. 2023

Polymer International

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Microcapsules containing nepeta essential oil (NEO) are prepared by electro‐atomization complex coacervation with sodium alginate and gelatin as wall materials. The effects of conditions such as sodium alginate solution concentration, core‐to‐wall ratio and emulsifier content on the release of essential oil and mosquito repellent properties of the microcapsules are studied. The microcapsules prepared under optimal preparation conditions have good performance and morphology, the encapsulation efficiency and loading capacity being 86.65% and 13.93%, respectively. The prepared microcapsules have adequate morphological characteristics observed using scanning electron microscopy. Fourier transform infrared spectra and thermogravimetric analysis show that NEO is successfully loaded in the microcapsules, and the thermal stability of NEO is improved. In addition, the results of release and repellent tests show that the NEO in the microcapsules could achieve stable release within 15 days and maintain an avoidance rate above 80% within 48 h, indicating the potential application of the microcapsules in the field of mosquito repellents. © 2023 Society of Industrial Chemistry.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mosquito repellent microcapsules of nepeta essential oil were prepared by electro‐atomization complex coacervation

Zhang

Pei

et al. 2023

Polymer International

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“…Coaxial electrospinning has become increasingly popular in creating core‐sheath structures for various functional applications 26–32 . Hollow fibers, as a special core‐shell fibers with an empty core, are frequently generated using a combination of coaxial electrospinning and post‐treatment.…”

Section: Introductionmentioning

confidence: 99%

“…Coaxial electrospinning has become increasingly popular in creating core‐sheath structures for various functional applications. 26 , 27 , 28 , 29 , 30 , 31 , 32 Hollow fibers, as a special core‐shell fibers with an empty core, are frequently generated using a combination of coaxial electrospinning and post‐treatment. However, the post‐treatment is not always required when appropriate shell and core polymer solutions are chosen, for example, PCL in CHCl 3 /DMF as shell and PEO/water as core.…”

Section: Introductionmentioning

confidence: 99%

Direct jet coaxial electrospinning of axon‐mimicking fibers for diffusion tensor imaging

Grech‐Sollars

Statton

et al. 2023

Polymers for Advanced Techs

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Hollow polymer microfibers with variable microstructural and hydrophilic properties were proposed as building elements to create axon‐mimicking phantoms for validation of diffusion tensor imaging (DTI). The axon‐mimicking microfibers were fabricated in a mm‐thick 3D anisotropic fiber strip, by direct jet coaxial electrospinning of PCL/polysiloxane‐based surfactant (PSi) mixture as shell and polyethylene oxide (PEO) as core. Hydrophilic PCL‐PSi fiber strips were first obtained by carefully selecting appropriate solvents for the core and appropriate fiber collector rotating and transverse speeds. The porous cross‐section and anisotropic orientation of axon‐mimicking fibers were then quantitatively evaluated using two ImageJ plugins—nearest distance (ND) and directionality based on their scanning electron microscopy (SEM) images. Third, axon‐mimicking phantom was constructed from PCL‐PSi fiber strips with variable porous‐section and fiber orientation and tested on a 3T clinical MR scanner. The relationship between DTI measurements (mean diffusivity [MD] and fractional anisotropy [FA]) of phantom samples and their pore size and fiber orientation was investigated. Two key microstructural parameters of axon‐mimicking phantoms including normalized pore distance and dispersion of fiber orientation could well interpret the variations in DTI measurements. Two PCL‐PSi phantom samples made from different regions of the same fiber strips were found to have similar MD and FA values, indicating that the direct jet coaxial electrospun fiber strips had consistent microstructure. More importantly, the MD and FA values of the developed axon‐mimicking phantoms were mostly in the biologically relevant range.

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“…Core‐shell micro/nanofibers, double‐compartment materials with advantages of both core and shell components at the same time, 1–4 are a new type of functional fibers which are widely used in battery field, 5 gas sensor, 6,7 photocatalysis, 8,9 biomedical field, 10,11 and flexible electronics, 12,13 and drug delivery 14–17 . There are several methods to produce the core‐shell fibers such as single needle through phase separation, 18,19 emulsion electrospinning, 20,21 template method, 22,23 coaxial electrospinning, 24,25 tri‐axial and modified tri‐axial electrospinning 26,27 .…”

Section: Introductionmentioning

confidence: 99%

Coaxial mechano‐electrospinning of oriented fibers with core‐shell structure for tactile sensing

Zhang

Long

2022

Polymers for Advanced Techs

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Coaxial electrospinning is an effective technique to produce core‐shell fibers. Nevertheless, it is unable to realize accurate positioning of the fibers in two dimensions which limits its use in the field of high oriented and aligned structures over large area such as flexible tactile sensors. Here, we introduce the Mechano‐electrospinning, in which drawing force coming from moving substrate and electric static force are used to manipulate the fiber controllable into the traditional coaxial electrospinning to form a new method named coaxial Mechano‐electrospinning which can continuously direct‐write oriented core‐shell fiber with high deposition accuracy. This method uses a coaxial convex needle and a two dimensional moving collector to deposit core‐shell fibers by near‐field localization and mechanical drawing force. A series of experiments were performed to determine optimum process parameters and results showed that with the substrate moving speed of 50–200 mm/s, voltage of 5–6.5 kV and the tip‐collector distance of 20–50 mm, core‐shell fibers can be continuously deposited and well oriented. Additionally, a pressure sensor based on the core‐shell fibers was developed and exhibited good dynamic sensitivity in the range of 0.5–50 Hz.

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Novel mosquito repellent fiber mat containing nepeta essential oil prepared by coaxial electrospinning

Cited by 6 publications

References 27 publications

Mosquito repellent microcapsules of nepeta essential oil were prepared by electro‐atomization complex coacervation

Mosquito repellent microcapsules of nepeta essential oil were prepared by electro‐atomization complex coacervation

Direct jet coaxial electrospinning of axon‐mimicking fibers for diffusion tensor imaging

Coaxial mechano‐electrospinning of oriented fibers with core‐shell structure for tactile sensing

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