A facile and highly sensitive colorimetric sensor for the detection of formaldehyde based on electro-spinning/netting nano-fiber/nets

Wang, Xianfeng; Si, Yang; Wang, Jialin; Yu, Jianyong; Al‐Deyab, Salem S.

doi:10.1016/j.snb.2012.01.033

Cited by 92 publications

(55 citation statements)

References 46 publications

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“…They have a high porosity and a high specific surface, and are thus commonly used in many applications, including wound dressings [29,30], release control [31], tissue engineering scaffolds [32], filtrations in environmental applications [33], metal ion adsorption [34], battery separator [35], and bio-sensors [36]. In particular, the application of wound dressings involves a complicated process of wound healing where the cell extracellular matrix components and growth factors interact.…”

Section: Introductionmentioning

confidence: 99%

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

2016

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Twisted stainless steel wires are used as wire electrodes for electrospinning the polyvinyl alcohol (PVA)/zinc citrate nanofiber mats. The morphology and diameter of the nanofibers in PVA/zinc citrate nanofiber mats are evaluated. We measured the antibacterial efficacy against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) of the nanofiber mats. We also examined the cell adhesion affinity of mammalian tissue culture cells on these nanofiber mats. Our results indicate that an increase in zinc citrate increases the viscosity and electrical conductivity of PVA solution. In addition, increasing zinc citrate results in a smaller diameter of nanofibers that reaches below 100 nm. According to the antibacterial test results, increasing zinc citrate enlarges the inhibition zone of S. aureus but only has a bacteriostatic effect against E. coli. Finally, cell adhesion test results indicate that all nanofiber mats have satisfactory cell attachment regardless of the content of zinc citrate.

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Section: Introductionmentioning

confidence: 99%

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

2016

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“…The nano-nets can create enhanced interconnectivity and additional specific surface area (SSA) and facilitate the diffusion of analytes into the NFN membranes and thus attractive candidates as sensing substrate loaded with receptors for ultrasensitive sensors (Ding et al, 2010;Wang et al, 2011). So far, we have obtained polyamide-6 (PA-6) and polyaniline (PANI)/ PA-6 NFN membranes and exploited their colorimetric sensing performance to formaldehyde (Wang et al, 2012a) and Cu 2+ , respectively.…”

Section: Introductionmentioning

confidence: 99%

Colorimetric sensor strips for lead (II) assay utilizing nanogold probes immobilized polyamide-6/nitrocellulose nano-fibers/nets

Wang

et al. 2013

Biosensors and Bioelectronics

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“…Nanofibrous or NFN membranes which could afford a great number of activity sites for immobilization of sensing materials and reactions have attached tremendous attention. Generally, the nanofibrous or NFN membrane-based colorimetric sensors are prepared by immobilizing the probe which could specifically react with analytes on nanofibrous membranes through various methods, including in situ polymerization, dip coating, or direct electrospinning [33,104]. Due to the outstanding properties of colorimetric sensors, such as cost-effectiveness, portability, easy to use (detected by the color change that could be observed by the naked eye), and semiquantitative determination, many researchers have focused on the development of colorimetric sensors towards various analytes.…”

Section: Colorimetric Sensorsmentioning

confidence: 99%

Electrospun Nanofiber-Based Sensors

Wang

Ding

2014

Nanostructure Science and Technology

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Monitoring of usable, explosive, and hazardous materials (gases, heavy metal ions, and organic contaminants) is one of the most important concerns that has attracted growing attention in the past few decades. Numerous sensors have been developed to meet the demands and the pursuit of highly sensitive, selective, reversible, fast response and recovery, cost-effective, and portable sensors which have gained great interest. Electrospun nanofibrous membranes that possess large surface area, high porosity, good interconnected porous structure, and flexibility of surface functionalization are expected to be ideal candidates of substrates to improve the performance of the sensors. More interestingly, the novel two-dimensional nanofiber/net membranes fabricated by electrospinning/netting are demonstrated to have extremely large surface area and unique pore structure, which could further enhance the sensitivity, stability, and response speed of the sensors. In this chapter, we summarize recent progress in the development of electrospun nanofiber-based sensors, describe the design of different types of sensors, and discuss their sensing performances in detail. This chapter might bring further development and evolution of sensors based on electrospun nanofibers for the detection of various analytes.

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A facile and highly sensitive colorimetric sensor for the detection of formaldehyde based on electro-spinning/netting nano-fiber/nets

Cited by 92 publications

References 46 publications

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

Biomedical Applications of Antibacterial Nanofiber Mats Made of Electrospinning with Wire Electrodes

Colorimetric sensor strips for lead (II) assay utilizing nanogold probes immobilized polyamide-6/nitrocellulose nano-fibers/nets

Electrospun Nanofiber-Based Sensors

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