Non-enveloped virus reduction with quaternized chitosan nanofibers containing graphene

Bai, Bingyu; Mi, Xue; Xiang, Xu; Heiden, Patricia A.; Heldt, Caryn L.

doi:10.1016/j.carres.2013.08.020

Cited by 57 publications

(29 citation statements)

References 51 publications

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“…In virus cases, concentration is tested by titration with the MTT assay before and after contact with electrospun nanofibers. The antiviral activity of nanofiber can be evaluated using a static approach by shaking nanofiber cut into a tube containing a defined concentration of virus in PBS saline buffer ( Bai et al, 2013 ). In the dynamic conditions, the defined PFU of viral cell solution passed through sterilized membranes produced and collected.…”

Section: Antiviral Performance Evaluation Of Electrospun Nanofiber Fomentioning

confidence: 99%

Efficient removal of water bacteria and viruses using electrospun nanofibers

Fahimirad

Sillanpää

2021

Science of The Total Environment

135

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Pathogenic contamination has been considered as a significant worldwide water quality concern. Due to providing promising opportunities for the production of nanocomposite membranes with tailored porosity, adjustable pore size, and scaled-up ability of biomolecules incorporation, electrospinning has become the center of attention. This review intends to provide a detailed summary of the recent advances in the fabrication of antibacterial and antiviral electrospun nanofibers and discuss their application efficiency as a water filtration membrane. The current review attempts to give a functionalist perspective of the fundamental progress in construction strategies of antibacterial and antiviral electrospun nanofibers. The review provides a list of antibacterial and antiviral agents commonly used as water membrane filters and discusses the challenges in the incorporation process. We have thoroughly studied the recent application of functionalized electrospun nanofibers in the water disinfection process, with an emphasis on their efficiency. Moreover, different antibacterial and antiviral assay techniques for membranes are discussed, the gaps and limitations are highlighted and promising strategies to overcome barriers are studies.

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Section: Antiviral Performance Evaluation Of Electrospun Nanofiber Fomentioning

confidence: 99%

Efficient removal of water bacteria and viruses using electrospun nanofibers

Fahimirad

Sillanpää

2021

Science of The Total Environment

135

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“…[111,135,136] For the particular case of soluble polysaccharides such as CHI, the wet–dry methodology is the most used. Bai et al [137] explored the development of electrospun CHI nanofibers functionalized with a quaternary amine, N-[(2-hydroxy-3-trimethylammonium) propyl] chitosan chloride (HTCC), to adsorb and reduce virus presence. Because of the difficulties in electrospinning HTCC alone, these authors used graphene as additive.…”

Section: Materials Processing Strategies For Chitosan Nanocompositesmentioning

confidence: 99%

“…They found that the good interaction between the graphene and the highly charged trimethyl amine group on the HTCC allowed a 95% reduction of porcine parvovirus due to the higher amount of HTCC that was able to reach the collector. [137] Najafabadi et al [138] studied the ability of CHI and GO to absorb metal ions such as , , and , showing that the obtained nanocomposites were able to absorb such ions, but with a decreasing capacity when pH values were above 6. Moreover, the adsorbent could be used up to five times without losing its initial adsorption capacity.…”

Section: Materials Processing Strategies For Chitosan Nanocompositesmentioning

confidence: 99%

Chitosan nanocomposites based on distinct inorganic fillers for biomedical applications

Moura

Mano

Paiva

et al. 2016

Science and Technology of Advanced Materials

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Chitosan (CHI), a biocompatible and biodegradable polysaccharide with the ability to provide a non-protein matrix for tissue growth, is considered to be an ideal material in the biomedical field. However, the lack of good mechanical properties limits its applications. In order to overcome this drawback, CHI has been combined with different polymers and fillers, leading to a variety of chitosan-based nanocomposites. The extensive research on CHI nanocomposites as well as their main biomedical applications are reviewed in this paper. An overview of the different fillers and assembly techniques available to produce CHI nanocomposites is presented. Finally, the properties of such nanocomposites are discussed with particular focus on bone regeneration, drug delivery, wound healing and biosensing applications.

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“…In the electric field, spherical drops within a needle become cones, and then fiber filaments extend from the cone tip. Electrospinning is a simple, effective, and widely available new processing technology for synthesizing nanofibers, in which a polymer fluid atomized by static electricity is moved a long distance, and finally stretched into fiber [31][32][33][34][35].…”

Section: Electrospinningmentioning

confidence: 99%

“…However, water purification systems require high pressure and membranes to eliminate parvovirus and heavy metal ions. Bai et al [35] discovered that a composite fiber of CS and GO formed by electrospinning could adsorb membraneless viruses and remove viruses and bacteria from water. Thus, this discovery is significant for areas that are short of fresh water and where filtration membranes cannot be used.…”

Section: Electrospinningmentioning

confidence: 99%

A review: synthesis and applications of graphene/chitosan nanocomposites

Yuan¹,

Meng²,

Park³

2016

Carbon letters

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Recently, with continuous developments in the field of materials science, graphene oxide (GO) has emerged as a promising material with excellent electrical, thermal, mechanical, and optical properties, which play important roles in most fields. Researchers have achieved considerable progress with graphene. Chitosan (CS) is a natural polymer that has been studied intensively owing to its specific formation, high chemical resistance, and excellent physical properties. These outstanding properties have led to its universal use in applications such as textile fabrics, tissue engineering, medicine and health, coatings, and paints. By combining the advantages of GO and CS, different types of promising materials can be obtained. This review discusses the preparation of GO-CS fibers, hydrogel and aerogel, and the applications of GO-CS nanocomposites. In addition, directions for future research on graphene material composites are discussed.

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Non-enveloped virus reduction with quaternized chitosan nanofibers containing graphene

Cited by 57 publications

References 51 publications

Efficient removal of water bacteria and viruses using electrospun nanofibers

Efficient removal of water bacteria and viruses using electrospun nanofibers

Chitosan nanocomposites based on distinct inorganic fillers for biomedical applications

A review: synthesis and applications of graphene/chitosan nanocomposites

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