Nanofibrous membrane of wool keratose/silk fibroin blend for heavy metal ion adsorption

Ki, Chang Seok; Gang, Eun Hee; Um, In Chul; Park, Young Hwan

doi:10.1016/j.memsci.2007.06.003

Cited by 210 publications

(93 citation statements)

References 24 publications

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“…The different approaches for nanofiber membranes with recognition abilities can be divided into first the direct incorporation of the specific affinity into the membranes bulk material, e.g. the specific adsorption of Cu 2+ by wool keterose blended with silk fibron [13] prior to electrospinning, second the post-modification of the nanofiber's surface, e.g. by grafting, [10] and third by immobilizing MIP microspheres within the nanofiber membrane.…”

Section: Discussionmentioning

confidence: 99%

Membranes for Specific Adsorption: Immobilizing Molecularly Imprinted Polymer Microspheres using Electrospun Nanofibers

Büttiker¹,

Ebert²,

Hinderling³

et al. 2011

Chimia

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Molecularly imprinted polymer microspheres were immobilized within a polymer nanofiber membrane by electrospinning. Such membranes simplify the handling of functional microspheres and provide specific recognition capabilities for solid-phase extraction and filtration applications. In this study, microspheres were prepared by precipitation polymerization of methacrylic acid and divinylbenzene as a cross-linker with the target molecule (-)-cinchonidine and then, they were electro spun into a non-woven polyacrylonitrile nanofiber membrane. The composite membrane showed specific affinity for (-)-cinchonidine which was attributed to the functional microspheres as confirmed by Raman microscopy. The target molecule capturing capacity of the composite membrane was 5 mg/g or 25 mg/g immobilized functional microsphere. No difference in target affinity was observed between the immobilized microspheres and the free microspheres. These results reveal that electrospun composite membranes are a feasible approach to immobilizing functional microspheres.

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Section: Discussionmentioning

confidence: 99%

Membranes for Specific Adsorption: Immobilizing Molecularly Imprinted Polymer Microspheres using Electrospun Nanofibers

Büttiker¹,

Ebert²,

Hinderling³

et al. 2011

Chimia

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“…In addition, these metal ions can lead to lung failure and liver damage [30]. It has been confirmed that the electrospun wool keratose (WK)/silk fibroin (SF) nanofiber mats exhibit an excellent performance as a heavy metal ions adsorbent [31].…”

Section: Filtrationmentioning

confidence: 99%

Potential Applications of Nonwoven Polymer Mats – Review

Louda

Fijalkowski

Rożek

et al. 2013

Contemporary Materials

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Nonwoven polymer mats with fibre diameters in the nanometer and micrometer range are distinguished for their high porosity with very small pore size, interconnectivity and controllable mesh thickness. These characteristics associated to the easy way to obtain the polymer nanofibres and a large surface area to volume ratio make the nonwoven fiber mats a suitable material for different applications, such as biosensor, electronic materials and filters. Polymer nanofibers mats are being considered for use in biomedical applications, including the production of artificial blood vessels, scaffolds for engineered tissues, wound dressings.

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“…It was suggested that the chitosan' adsorption followed a monolayer mechanism. A nanofibrous membrane of pure silk fibroin (SF), and a blend of wool keratose and silk fibroin (WK/SF), were compared with pure silver wool and filter paper for their Cu(II) adsorption capacity [255]. The nanofibrous membranes displayed a significant Cu(II) adsorption capacity compared to silver wool and filter paper because of the large specific area which is ~50 times larger than those of filter paper and silver wool.…”

Section: Bioremediationmentioning

confidence: 99%

A review on electrospun bio-based polymers for water treatment

Mokhena¹,

Jacobs²,

Luyt³

2015

Express Polym. Lett.

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Abstract. Over the past decades, electrospinning of biopolymers down to nanoscale garnered much interest to address most of the millennia issues related to water treatment. The fabrication of these nanostructured membranes added a new dimension to the current nanotechnologies where a wide range of materials can be processed to their nanosize. Electrospinning is a simple and versatile technique to fabricate unique nanostructured membranes with fascinating properties for a wide spectrum of applications such as filtration and others. These nanostructured membranes, fabricated by electrospinning, were found to be of a paramount importance because of their advanced inherited properties such as large surface-to-volume ratio, as well as tuneable porosity, stability, and high permeability. The extensive research conducted on these materials extended the success of electrospinning not only to bio-based polymer nanofibres, but to their hybrids and their derivatives. The technique also created avenues for advanced and massive production of nanofibres. This paper reviews the recent developments in the electrospinning technique. Electrospinning of biopolymers, their blends and functionalization using metals/metal oxides, and the potential applications of electrospun nanofibrous membranes in water filtration are discussed.

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Nanofibrous membrane of wool keratose/silk fibroin blend for heavy metal ion adsorption

Cited by 210 publications

References 24 publications

Membranes for Specific Adsorption: Immobilizing Molecularly Imprinted Polymer Microspheres using Electrospun Nanofibers

Membranes for Specific Adsorption: Immobilizing Molecularly Imprinted Polymer Microspheres using Electrospun Nanofibers

Potential Applications of Nonwoven Polymer Mats – Review

A review on electrospun bio-based polymers for water treatment

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