The fabrications and characterizations of antibacterial PVA/Cu nanofibers composite membranes by synthesis of Cu nanoparticles from solution reduction, nanofibers reduction and immersion methods

Khan, Muhammad Qamar; Kharaghani, Davood; Nishat, Nazish; Sanaullah,; Shahzad, Amir; Hussain, Tanveer; Kim, Kyu Oh; Kim, Ick Soo

doi:10.1088/2053-1591/ab1688

Cited by 22 publications

(18 citation statements)

References 17 publications

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“…Water contact angle meter. To investigate the wetting behavior of PICT, PVA and PICT/PVA nanofibers, a static angle with a contact angle meter by drop method (Kyowa Interface Science, Japan), was used 25 . As per ASTM D7334, a web having 2.54 cm × 5.08 cm dimensions from each sample was prepared and fixed at a glass strap where a drop of water from the needle of the water contact angle meter was dropped at the fixed web on five different places and behavior was examined.…”

Section: Fabrication Of Scaffoldmentioning

confidence: 99%

“…2 that resultant scaffold was prepared by the co-electrospinning in which two types of nanofibers were entangled to each other by mechanical interlacement. Both types of nanofibers have different properties of stress strain behavior, but their blend showed the different behavior from them due to the interlacement of high elongated PVA nanofibers and high stiffed PICT nanofibers 24,25 . The behavior of PICT/ PVA nanofibers is appropriate for the scaffold application because there is need of appropriate elongation and stiffness which was obtained by co-electrospinning of PVA and PICT polymers 26 .…”

Section: Study Of Hydrophilic/hydrophobic Behaviormentioning

confidence: 99%

“…https://doi.org/10.1038/s41598-020-76471-x www.nature.com/scientificreports/ ideal scaffold. The scaffold which must use in wound dressings, drug delivery, filtration of blood or urine must have an absorbency level from 70 to 100 water contact angle25 . So proposed PVA/PICT nanofibers have the ideal level of absorbency as per requirements of scaffolds.…”

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confidence: 99%

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In-vitro assessment of appropriate hydrophilic scaffolds by co-electrospinning of poly(1,4 cyclohexane isosorbide terephthalate)/polyvinyl alcohol

Salam

Khan

Hassan

et al. 2020

Sci Rep

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Textile-based Scaffolds preparation has the attractive features to fulfill the stated and implied needs of the consumer but there are still challenges of stability, elongation, appreciable bio-compatibility, and stated hydrophilic behavior. To overcome these challenges, the authors tried to fabricate a scaffold by blending of two highly biocompatible polymers; polyvinyl alcohol and poly(1,4 cyclohexane isosorbide terephthalate) through co-electrospinning. The resultant scaffold by the stated innovative approach evaluated from different characterizations such as dimensional stability/morphology was evaluated by scanning electron microscopy, chemical interactions by that Fourier transmission infrared spectra, wetting behavior was analyzed by a static angle with a contact angle meter from drop method, elongation was examined by tensile strength tester and in-vitro assessment was done by MTT analysis. Based on verified results, it was concluded that PVA/PICT scaffold has a potential for dual nature of hydrophilicity & hydrophobicity and appreciable cell culture growth, stated dimensional stability and suitable elongation as per requirements of the nature of scaffold.

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Section: Fabrication Of Scaffoldmentioning

confidence: 99%

Section: Study Of Hydrophilic/hydrophobic Behaviormentioning

confidence: 99%

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In-vitro assessment of appropriate hydrophilic scaffolds by co-electrospinning of poly(1,4 cyclohexane isosorbide terephthalate)/polyvinyl alcohol

Salam

Khan

Hassan

et al. 2020

Sci Rep

Self Cite

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“…CuNWs are also effectively produced by electrospinning, which makes use of electrostatic stretching of polymer fluids, such as a polymer solution or melt, through a "Taylor cone" into nanoscale polymeric filaments [66][67][68][69][70]. The polymer fluids for electrospinning CuNWs are a mixture of copper salts and polymer, such as copper acetate or CuSO 4 and poly(vinyl acetate) or PVP [70][71][72][73]. The obtained nanofibers further went through oxidation to form CuO nanofibers and were subject to reduction in H 2 environment for the production of CuNWs (Fig.…”

Section: Copper Nanowiresmentioning

confidence: 99%

Copper nanomaterials and assemblies for soft electronics

Yang

Zhu

2019

Sci. China Mater.

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Soft electronics that can simultaneously offer electronic functions and the capability to be deformed into arbitrary shapes are becoming increasingly important for wearable and bio-implanted applications. The past decade has witnessed tremendous progress in this field with a myriad of achievements in the preparation of soft electronic conductors, semiconductors, and dielectrics. Among these materials, copper-based soft electronic materials have attracted considerable attention for their use in flexible or stretchable electrodes or interconnecting circuits due to their low cost and abundance with excellent optical, electrical and mechanical properties. In this review, we summarize the recent progress on these materials with the detailed discussions of the synthesis of copper nanomaterials, approaches for their assemblies, strategies to resist the ambient corrosion, and their applications in various fields including flexible electrodes, sensors, and other soft devices. We conclude our discussions with perspectives on the remaining challenges to make copper soft conductors available for more widespread applications.

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“…One of the best ways to prevail over this limitation is to protect the –OH groups with a cover material such as hydrogen sulfate (Maleki et al, 2019b ), clay (Kokabia et al, 2007 ), zinc acetate (Yang et al, 2004 ), TiO 2 (Yang, 2007 ), etc. Copper is an element that can be used as a useful protecting cover for improving and modifying PVA attributes (Khan et al, 2019 ). Copper element has singular properties, including propounded electrical conductivity and antibacterial activities (Lu et al, 2004 ; Kong et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Fe3O4@PVA-Cu Nanocomposite and Its Application for Facile and Selective Oxidation of Alcohols

2020

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Fe 3 O 4 @PVA-Cu nanocomposite was introduced as an affordable catalyst for selective oxidation of alcohols into various aldehydes and ketones. The synthesized nanocomposite was characterized by applying essential analyses. The peaks that are appeared in FT-IR spectroscopy confirmed the production of the Fe 3 O 4 @PVA-Cu nanocomposite. In addition, EDX analysis proved the presence of oxygen, carbon, iron, and copper elements in the catalyst. Further, TGA analysis showed high thermal stability of the nanocomposite. VSM technique was applied to examine the magnetic property of the nanocomposite. The results demonstrated a high magnetic property in the catalyst, which enables easy separation of it from the reaction solution. TEM and SEM imaging showed the nanoscale size of the particles (~20 nm) in the catalyst. Additionally, XRD data was compatible with that of Fe 3 O 4 nanoparticles. The application of the nanocomposite has been studied in the selective oxidation of alcohols in the presence of acetonitrile as solvent, and hydrogen peroxide as a supplementary oxidizing agent. This technique is remarkably facile and inexpensive. Further, the products showed high yields. In addition, the calculated TON and TOF values indicated the phenomenal efficiency of the nanocomposite in preparation of targeted products.

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The fabrications and characterizations of antibacterial PVA/Cu nanofibers composite membranes by synthesis of Cu nanoparticles from solution reduction, nanofibers reduction and immersion methods

Cited by 22 publications

References 17 publications

In-vitro assessment of appropriate hydrophilic scaffolds by co-electrospinning of poly(1,4 cyclohexane isosorbide terephthalate)/polyvinyl alcohol

In-vitro assessment of appropriate hydrophilic scaffolds by co-electrospinning of poly(1,4 cyclohexane isosorbide terephthalate)/polyvinyl alcohol

Copper nanomaterials and assemblies for soft electronics

Fabrication of Fe3O4@PVA-Cu Nanocomposite and Its Application for Facile and Selective Oxidation of Alcohols

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