A review of opportunities for electrospun nanofibers in analytical chemistry

Chigome, Samuel; Torto, Nelson

doi:10.1016/j.aca.2011.08.021

Cited by 117 publications

(56 citation statements)

References 118 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electrospinning is a versatile method of obtaining fibrous structures for the wide scope of applications, including analytical chemistry, environmental protection, or medicine [1][2][3]. Considering the range of fibres diameters (from several micrometers to nanometers [4]) obtained via ES, this technique has an increasing importance in the biomaterials and tissue engineering fields.…”

Section: Introductionmentioning

confidence: 99%

Degradation Behavior of Electrospun PLA and PLA/CNT Nanofibres in Aqueous Environment

Magiera

Markowski

Pilch

et al. 2018

Journal of Nanomaterials

View full text Add to dashboard Cite

The aim of the work was to compare the degradation behavior of electrospun nanofibres obtained from pure poly(lactic acid) (PLA) and modified with carbon nanotubes (CNTs) in aqueous environment. The nanofibres in the form of mats were manufactured using the electrospinning technique (ES) with potential biomedical application. To investigate the degradation behavior, onecomponent and composite (containing CNTs) nanofibres were compared using scanning electron microscopy (SEM), water contact angle measurements, differential scanning calorimetry (DSC), and mechanical testing. The changes in their morphology, structure, and selected physical and mechanical properties during incubation up to 14 days were analysed. Two types of CNTs differing in concentration of surface functional groups were used to modify the PLA nanofibres. PLA and composite nanofibres (PLA + CNT) during incubation underwent swelling and partial degradation due to the penetration of water into polymer matrix. Changes in the mechanical properties of composite mats were higher than those observed for pure PLA mats. After 14-day incubation, samples retained from 47 to 78% of their initial tensile strength, higher for PLA samples. Morphological changes in pure PLA nanofibres were more dynamic than in composite nanofibres. No significant changes in crystallinity, wettability, and porosity of the samples occurred.

show abstract

Section: Introductionmentioning

confidence: 99%

Degradation Behavior of Electrospun PLA and PLA/CNT Nanofibres in Aqueous Environment

Magiera

Markowski

Pilch

et al. 2018

Journal of Nanomaterials

View full text Add to dashboard Cite

show abstract

“…The wide range of applications of fibrous structures obtained via electrospinning, including analytical chemistry, environmental protection, electrochemistry, industry, medicine, or everyday life products [1][2][3], makes this technique both versatile and prospective in the manufacture of high performance nanofibres. Considering the range of fibre diameters (i.e., several m to 10s nm [4]) possible to be obtained by ES, this technique has found interest in specific tissue engineering applications.…”

Section: Introductionmentioning

confidence: 99%

PLA-Based Hybrid and Composite Electrospun Fibrous Scaffolds as Potential Materials for Tissue Engineering

Magiera

Markowski

Menaszek

et al. 2017

Journal of Nanomaterials

View full text Add to dashboard Cite

The aim of the study was to manufacture poly(lactic acid)-(PLA-) based nanofibrous nonwovens that were modified using two types of modifiers, namely, gelatin-(GEL-) based nanofibres and carbon nanotubes (CNT). Hybrid nonwovens consisting of PLA and GEL nanofibres (PLA/GEL), as well as CNT-modified PLA nanofibres with GEL nanofibres (PLA + CNT/GEL), in the form of mats, were manufactured using concurrent-electrospinning technique (co-ES). The ability of such hybrid structures as potential scaffolds for tissue engineering was studied. Both types of hybrid samples and one-component PLA and CNTs-modified PLA mats were investigated using scanning electron microscopy (SEM), water contact angle measurements, and biological and mechanical tests. The morphology, microstructure, and selected properties of the materials were analyzed. Biocompatibility and bioactivity in contact with normal human osteoblasts (NHOst) were studied. The coelectrospun PLA and GEL nanofibres retained their structures in hybrid samples. Both types of hybrid nonwovens were not cytotoxic and showed better osteoinductivity in comparison to scaffolds made from pure PLA. These samples also showed significantly reduced hydrophobicity compared to one-component PLA nonwovens. The CNT-contained PLA nanofibres improved mechanical properties of hybrid samples and such a 3D system appears to be interesting for potential application as a tissue engineering scaffold.

show abstract

“…It has been found that traditional liquid-liquid extraction does not satisfy the current preparation requirements because of its large consumption of toxic organic solvents, tedious procedures, and low sensitivity. Thus, much effort has changed to simplify the operating procession and improve the sensitivity and selectivity [1,2]. Therefore, fabricating novel materials as absorbents has resulted in significant achievements toward the problems mentioned above.…”

Section: Introductionmentioning

confidence: 99%

Preparation of a concentric layered structure of an electrospun nanofiber column for solid-phase extraction of mass viscous crude extracts

et al. 2016

View full text Add to dashboard Cite

The packed nanofiber solid-phase extraction of crude extracts of a mass viscous sample is challenging because the interference and recalcitrant particulates in the sample may attach to the nanofiber and block the column, which leads to insufficient sample extraction. A novel concentric layered nanofiber solid-phase extraction (SPE) column using polystyrene-based electrospun nanofiber as the stationary phase has been employed for the pretreatment of mass viscous crude extracts. The layered column was fabricated by using untouched nanofiber with its natural morphology rather than hand-packing of spoiled fiber to the control packing density of the column. In the novel column, the SPE packed bed was divided into a multi-layer structure to provide uniform radial and axial packing and to part the mobile phase stream by the isolated layer with great superiority in aspects such as lower column pressure and faster elution speed. The feasibility and efficiency of the LFSPE column were then evaluated via determination of rhodamine B (RB) from spiked chili samples. Based on the LFSPE column, a linear spiked calibration curve in the range of 0.02-5 mg/kg was obtained. The limit of detection (LOD) and limit of quantification (LOQ) of the method were 0.001 and 0.004 mg/kg, respectively; recoveries at 0.1, 1, and 2 mg/kg (n = 3) were all up to 95 %; and the RSD values of inter-day and intra-day were all below 5 %. This novel LFSPE column overcame heterogeneous packing and exploited the wall effect in subtle ways, and exhibited great superiority by comparison with some existing methods. Graphical Abstract ᅟ.

show abstract

A review of opportunities for electrospun nanofibers in analytical chemistry

Cited by 117 publications

References 118 publications

Degradation Behavior of Electrospun PLA and PLA/CNT Nanofibres in Aqueous Environment

Degradation Behavior of Electrospun PLA and PLA/CNT Nanofibres in Aqueous Environment

PLA-Based Hybrid and Composite Electrospun Fibrous Scaffolds as Potential Materials for Tissue Engineering

Preparation of a concentric layered structure of an electrospun nanofiber column for solid-phase extraction of mass viscous crude extracts

Contact Info

Product

Resources

About