Performance of electrodes synthesized with polyacrylonitrile-based carbon nanofibers for application in electrochemical sensors and biosensors

Adabi, Mahdi; Saber, Reza; Faridi‐Majidi, Reza; Faridbod, Farnoush

doi:10.1016/j.msec.2014.12.051

Cited by 65 publications

(35 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We observed the average fibre diameter was increasing first then dropped at 3000 µl min −1 , and subsequently increased when increasing the flow rate further. The same phenomenon also occurred in the electrospinning studies by De Schoenmaker et al [40], Faridi-Majidi et al [41] and Adabi et al [42]. It suggests that the reduction in average fibre diameter is due to a balance of volume of solution transfer through the orifice operating in competition with other experimental variables including flow rate and pressure.…”

Section: Resultssupporting

confidence: 59%

Empirical modelling and optimization of pressure-coupled infusion gyration parameters for the nanofibre fabrication

2019

View full text Add to dashboard Cite

Pressure-coupled infusion gyration (PCIG) is a novel promising technique for economical and effective mass production of nanofibres with desirable geometrical characteristics. The average diameter of spun fibres significantly influences the structural, mechanical and physical properties of the produced fibre mats. Having a comprehensive understanding of the significant effects of PCIG experimental variables on the spun fibres is beneficial. In this work, response surface methodology was used to explore the interaction effects and the optimal PCIG experimental variables for achieving the desired morphological characteristics of fibres. The effect of experimental variables, namely solution concentration, infusion (flow) rate, applied pressure and rotational speed, was studied on the average fibre diameter and standard deviations. A numerical model for the interactional influences of experimental variables was developed and optimized with a nonlinear interior point method that can be used as a framework for selecting the optimal conditions to obtain poly-ethylene oxide fibres with desired morphology (targeted average diameter and narrow standard deviation). The adequacy of the models was verified by a set of validation experiments. The results proved that the predicted optimal conditions were able to achieve the average diameter that matched the pre-set desired value with less than 10% of difference.

show abstract

Section: Resultssupporting

confidence: 59%

Empirical modelling and optimization of pressure-coupled infusion gyration parameters for the nanofibre fabrication

2019

View full text Add to dashboard Cite

show abstract

“…Among nanofiber production methods, electrospinning has been recognized as simple and cost-effective method [10][11][12]. Various polymeric nanofibers have been already produced by using electrospinning technique.…”

Section: Introductionmentioning

confidence: 99%

Encapsulation of gallic acid/cyclodextrin inclusion complex in electrospun polylactic acid nanofibers: Release behavior and antioxidant activity of gallic acid

Aytaç

Küskü

Durgun

et al. 2016

Materials Science and Engineering: C

149

View full text Add to dashboard Cite

Cyclodextrin-inclusion complexes (CD-ICs) possess great prominence in food and pharmaceutical industries due to their enhanced ability for stabilization of active compounds during processing, storage and usage. Here, CD-IC of gallic acid (GA) with hydroxypropyl-beta-cyclodextrin (GA/HPβCD-IC) was prepared and then incorporated into polylactic acid (PLA) nanofibers (PLA/GA/HPβCD-IC-NF) using electrospinning technique to observe the effect of CD-ICs in the release behavior of GA into three different mediums (water, 10% ethanol and 95% ethanol). The GA incorporated PLA nanofibers (PLA/GA-NFs) were served as control. Phase solubility studies showed an enhanced solubility of GA with increasing amount of HPβCD. The detailed characterization techniques (XRD, TGA and 1 H-NMR) confirmed the formation of inclusion complex between GA and HPβCD. Computational modeling studies indicated that the GA made an efficient complex with HPβCD at 1:1 either in vacuum or aqueous system. SEM images revealed the bead-free and uniform morphology of PLA/GA/HPβCD-IC-NF. The release studies of GA from PLA/GA/HPβCD-IC-NF and PLA/GA-NF were carried out in water, 10% ethanol and 95% ethanol, and the findings revealed that PLA/GA/HPβCD-IC-NF has released much more amount of GA in water and 10% ethanol system when compared to PLA/GA-NF. In addition, GA was released slowly from PLA/GA/HPβCD-IC-NF into 95% ethanol when compared to PLA/GA-NF. It was also observed that electrospinning process had no negative effect on the antioxidant activity of GA when GA was incorporated in PLA nanofibers.

show abstract

“…3, the cyclic voltammetric behavior of the bare CNF electrode is exhibited. In our previous work [18], we explained that the current of the CNFs depends on the diameter and morphology of CNFs. Decreasing in both the diameter of CNFs and the number of beads results in the higher amount of current.…”

Section: Cyclic Voltammetric Behavior Of the Modified Cnf Electrodementioning

confidence: 96%

“…The CNFs were prepared according to our previous work [18]. Briefly, PAN polymer (with the concentration of 8 wt%) was dissolved in a mixture of DMF and acetone at 8 to 2 ratio with magnetic stirring at 50 °C for 8 hours.…”

Section: Preparation Of Cnf Electrodementioning

confidence: 99%

Electrospun carbon nanofiber-based electrochemical biosensor for the detection of hepatitis B virus

2019

Biointerface Res Appl Chem

View full text Add to dashboard Cite

The purpose of this work was to design the electrochemical DNA biosensor based on carbon nanofibers (CNFs) for detecting hepatitis B virus (HBV). The CNFs, due to high conductivity and surface-to-volume ratio, was known as an effective material in the electrochemical biosensor. In this work, we directly used electrospun CNF as the electrode. CNF electrode was modified with electropolymerized glutamic acid (Glu). Then, the probe DNA (pDNA) was conjugated to Glu modified CNFs electrode. The surface morphology of CNFs and Glu modified CNFs were characterized via scanning electron microscopy (SEM). Electropolymerized Glu on the surface of CNF electrode was characterized by Fourier transform infrared spectroscopy (FTIR) as well. The cyclic voltammetry (CV) was used to monitor the target DNA (tDNA). The tDNA was quantified at a linear range from 1 × 10-12 to 1 × 10-6 M with a detection limit of 1.58 × 10-12 M. This electrochemical HBV biosensor had good stability, repeatability, and selectivity for distinguishing complementary DNA from non-complementary and mis-matched DNA sequences.

show abstract

Performance of electrodes synthesized with polyacrylonitrile-based carbon nanofibers for application in electrochemical sensors and biosensors

Cited by 65 publications

References 44 publications

Empirical modelling and optimization of pressure-coupled infusion gyration parameters for the nanofibre fabrication

Empirical modelling and optimization of pressure-coupled infusion gyration parameters for the nanofibre fabrication

Encapsulation of gallic acid/cyclodextrin inclusion complex in electrospun polylactic acid nanofibers: Release behavior and antioxidant activity of gallic acid

Electrospun carbon nanofiber-based electrochemical biosensor for the detection of hepatitis B virus

Contact Info

Product

Resources

About