Electrospinning design of functional nanostructures for biosensor applications

Mingfa, Zhang; Zhao, Xinne; Zhang, Guanghua; Wei, Gang; Su, Zhiqiang

doi:10.1039/c6tb03121h

Cited by 165 publications

(89 citation statements)

References 86 publications

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“…Electrospinning is a conventional and broadly employed method to fabricate micro‐/nanostructured fibers of polymers, ceramics, semiconductors and composites with diameters ranging from a few nanometers to several micrometers (usually between 50 and 500 nm) . In an electrospinning process, a high voltage (>5 kV) is applied between solution and a counter electrode to produce a repulsive force within the solution that overcomes its surface tension, forcing the solution to pass through the tip of a spinneret, and a grounded plate was used to collect the fibers .…”

Section: Fabrication Of Micro‐/nanostructurementioning

confidence: 99%

Micro‐/Nanostructured Interface for Liquid Manipulation and Its Applications

Duan

Zheng

Zhao

et al. 2019

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Understanding the relationship between liquid manipulation and micro‐/nanostructured interfaces has gained much attention due to the wide potential applications in many fields, such as chemical and biomedical assays, environmental protection, industry, and even daily life. Much work has been done to construct various materials with interfacial liquid manipulation abilities, leading to a range of interesting applications. Herein, different fabrication methods from the top‐down approach to the bottom‐up approach and subsequent surface modifications of micro‐/nanostructured interfaces are first introduced. Then, interactions between the surface and liquid, including liquid wetting, liquid transportation, and a number of corresponding models, together with the definition of hydrophilic/hydrophobic, oleophilic/olephobic, the definition and mechanism of superwetting, including superhydrophobicity, superhydrophilicity, and superoleophobicity, are presented. The micro‐/nanostructured interface, with major applications in self‐cleaning, antifogging, anti‐icing, anticorrosion, drag‐reduction, oil–water separation, water collection, droplet (micro)array, and surface‐directed liquid transport, is summarized, and the mechanisms underlying each application are discussed. Finally, the remaining challenges and future perspectives in this area are included.

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Section: Fabrication Of Micro‐/nanostructurementioning

confidence: 99%

Micro‐/Nanostructured Interface for Liquid Manipulation and Its Applications

Duan

Zheng

Zhao

et al. 2019

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“…Electrospun micro/nanofibers also provide various advantages, including a high surface area and porosity, tunable micro/nanofiber composition, and the capacity to conform to a wide variety of sizes and shapes. Given the strength of these advantages, electrospun micro/nanofibers have been extensively researched during the past decade for various applications, such as filtration [3], biosensors [4], tissue engineering [5], wound dressings [6,7], drug delivery [8], and composites [9]. Despite the several advantages offered by electrospinning, there are still challenges that demand proper consideration.…”

Section: Introductionmentioning

confidence: 99%

Determination of Electrospinning Parameters’ Strength in Poly(D,L)-lactide-co-glycolide Micro/Nanofiber Diameter Tailoring

Chen

Liu

et al. 2019

Journal of Nanomaterials

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Electrospinning has received increasing interest and attention in recent years for fabricating micro/nanofibers of various materials; this is due to its versatility and capability of multiple field applications, including filtration, biosensors, tissue engineering, wound dressings, drug delivery, and composites. Nonetheless, the optimization of the electrospinning process is based on a time-consuming trial-and-error procedure. An empirical study, in conformity with the Taguchi orthogonal matrix design, was carried out to investigate the influence of various processing variables on the electrospinning of resorbable poly(D,L)-lactide-co-glycolide (PLGA). Three different solvents, hexafluoro-2-propanol (HFIP), dichloromethane (DCM), and trichloromethane (TCM), were employed. Five variables were selected for evaluation, including PLGA concentration, the solution’s flow rate from the nozzle, the distance between the nozzle and ground collection, the voltage, and the type of solvents. After electrospinning, we performed a morphological analysis of nanofibers by scanning electron microscopy (SEM) and measured the fiber size by the evaluation of SEM images. Among the variables selected, the type of solvent and the applied voltage were found to be the principal variables influencing the diameter distribution of electrospun PLGA fibers. Nanofibers with the smallest fiber size (466.25±158.38 nm) could be obtained with HFIP solvent and an applied voltage of 15 kV.

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“…In addition, electrospun nanofibers have the potential to be applied as good sorbents for the extraction, removal, and filtration of heavy‐metal ions, dyes, pesticides, and phenolic endocrine disruptor pollutants from real samples . Furthermore, many functional additives, including dyes, biomolecules, and nanoparticles (NPs), have been incorporated into electrospun nanofibers to make them an excellent adsorption medium for the removal of contaminants …”

Section: Introductionmentioning

confidence: 99%

Simple preparation and characterization of molecularly imprinted nylon 6 nanofibers for the extraction of bisphenol A from wastewater

Ardekani

Borhani

Rezaei

2018

J of Applied Polymer Sci

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Nylon 6 nanofibers incorporated with molecularly imprinted polymers (MIPs) were successfully fabricated by electrospinning with fiber diameters in the range 80-145 nm. Then, they were used as a new material for the extraction of selected bisphenol A (BPA) in water samples. Field emission scanning electron microscopy images revealed that the nanofibers had a smooth morphology with a good incorporation of MIPs. The Fourier transform infrared and energy-dispersive X-ray spectroscopy results also confirmed the formation of the MIPs in the nanofibers. Furthermore, Raman spectroscopy showed that the crystalline structure of the pristine nylon 6 nanofiber was a kind of α form, and the incorporation of MIPs led to a γ-form structure in the nanofibers; this proved the interactions between nylon 6 and the MIPs. Adsorption studies also confirmed that the adsorption efficiency of BPA onto the molecularly imprinted polymer nanofibers (MIP-NFs; 83.5%) was much greater than that onto nonimprinted polymer nanofibers (NIP-NFs; 36.8%). Also, the imprinting factor was 3.4; this strongly implied the successful formation of molecularly imprinted cavities on the MIP-NFs with a strong affinity to BPA. The maximum adsorption capacity of the MIP-NFs was 103.8 mg/g.

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Electrospinning design of functional nanostructures for biosensor applications

Abstract: We summarize the recent advances in the electrospinning fabrication of hybrid polymer nanofibers decorated with functionalized nanoscale building blocks (NBBs) to obtain biosensors with better performances.

Cited by 165 publications

References 86 publications

Micro‐/Nanostructured Interface for Liquid Manipulation and Its Applications

Micro‐/Nanostructured Interface for Liquid Manipulation and Its Applications

Determination of Electrospinning Parameters’ Strength in Poly(D,L)-lactide-co-glycolide Micro/Nanofiber Diameter Tailoring

Simple preparation and characterization of molecularly imprinted nylon 6 nanofibers for the extraction of bisphenol A from wastewater

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