Preparation and characterizations of multifunctional PVA/ZnO nanofibers composite membranes for surgical gown application

Khan, Muhammad Qamar; Kharaghani, Davood; Nishat, Nazish; Shahzad, Amir; Hussain, Tanveer; Khatri, Zeeshan; Zhu, Chunhong; Kim, Ick Soo

doi:10.1016/j.jmrt.2018.08.013

Cited by 69 publications

(34 citation statements)

References 13 publications

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“…This particle size increase may be explained by the molecular interactions between PVA and EN and the uneven charge distribution resulting from unstable electrostatic spinning. Khan et al reported similar findings for PVA/ZnO nanofibers [ 37 ]. They found that the nanofiber diameter increased with ZnO content.…”

Section: Resultssupporting

confidence: 60%

Long-Term Antibacterial Effect of Electrospun Polyvinyl Alcohol/Polyacrylate Sodium Nanofiber Containing Nisin-Loaded Nanoparticles

Jiang

et al. 2020

Nanomaterials

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Response Surface Methodology (RSM) was used to assess the optimal conditions for a Water/Oil/Water (W/O/W) emulsion for encapsulated nisin (EN). Nano-encapsulated nisin had high encapsulation efficiencies (EE) (86.66 ± 1.59%), small particle size (320 ± 20 nm), and low polydispersity index (0.27). Biodegradable polyvinyl alcohol (PVA) and polyacrylate sodium (PAAS) were blended with EN and prepared by electrospinning. Scanning electron microscopy (SEM) revealed PVA/PAAS/EN nanofibers with good morphology, and that their EN activity and mechanical properties were enhanced. When the ultrasonication time was 15 min and 15% EN was added, the nanofibers had optimal mechanical, light transmittance, and barrier properties. Besides, the release behavior of nisin from the nanofibers fit the Korsemeyer–Peppas (KP) model, a maximum nisin release rate of 85.28 ± 2.38% was achieved over 16 days. At 4 °C, the growth of Escherichia coli and Staphylococcus aureus was inhibited for 16 days in nanofibers under different ultrasonic times. The application of the fiber in food packaging can effectively inhibit the activity of food microorganisms and prolong the shelf life of strawberries, displaying a great potential application for food preservation.

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Section: Resultssupporting

confidence: 60%

Long-Term Antibacterial Effect of Electrospun Polyvinyl Alcohol/Polyacrylate Sodium Nanofiber Containing Nisin-Loaded Nanoparticles

Jiang

et al. 2020

Nanomaterials

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“…On the other hand, in the case of synthetic or man-made fibers, the antimicrobial agents are incorporated into the polymer solution physically, which is spun into the filaments or fibers by extrusion. In that frame, electrospinning has also become an attractive process enabling production of antimicrobial nanofiber nets by using versatile polymers and additives, to be applied in biomedicine (Agarwal et al 2012;Rieger and Schiffman 2014;Sridhar et al 2015;Pajoumshariati et al 2016), wound dressings (Suganya et al 2011;Khan et al 2019) and protective textiles (Kampeerapappun 2012;Gorji et al 2017;Teli et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial properties of viscose yarns ring-spun with integrated amino-functionalized nanocellulose

et al. 2021

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Bio-based, renewable and biodegradable products with multifunctional properties are also becoming basic trends in the textile sector. In this frame, cellulose nanofibrils (CNFs) have been surface modified with hexamethylenediamine/HMDA and used as an antimicrobial additive to a ring-spun viscose yarn. The CNF-HMDA suspension was first characterized in relation to its skin irritation potential, antimicrobial properties, and technical performance (dispersability and suspensability in different media) to optimize its sprayability on a viscose fiber sliver with the lowest sticking, thus to enable its spinning without flowing and tearing problems. The impact of CNF-HMDA content has been examined on the yarn`s fineness, tensile strength, surface chemistry, wettability and antimicrobial properties. The yarn`s antimicrobial properties were increasing with the content of CNF-HMDA, given a 99% reduction for S. aureus and C. albicans (log 1.6–2.1) in up to 3 h of exposure at minimum 33 mg/g, and for E. coli (log 0.69–2.95) at 100 mg/g of its addition, yielding 45–21% of bactericidal efficacy. Such an effect is related to homogeneously distributed CNF-HMDA when sprayed from a fast-evaporated bi-polar medium and using small (0.4 mm) nozzle opennings, thus giving a high positive charge (0.663 mmol/g) without affecting the yarn`s tenacity and fineness, but improving its wettability. However, a non-ionic surfactant being used in the durability testing of functionalized yarn to 10-washing cycles, adheres onto it hydrophobically via the methylene chain of the HMDA, thus blocking its amino groups, and, as such, decreasing its antibacterial efficiency, which was slightly affected in the case when the washing was carried out without using it.

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“…Recently, the ZnO NFs have become an attractive material for sensors due to their physical, functional, and structural properties. [24] NFs are used in batteries, [25,26] fuel cells [27] and supercapacitors [28,29] in the energy sector; in dust filters, [30,31] water filters, [32,33] face masks, [34] and photocatalysis [35,36] in the environment sector; and in drug delivery, [37] tissue engineering, [38] and wound dressing in the health care sector. [39] Fig.…”

Section: Electrospinning Of Nanofibersmentioning

confidence: 99%

Electrospun ZnO Nanofiber Based Resistive Gas/Vapor Sensors -A Review

Prabhu¹,

Chandra²,

Rajendra³

et al. 2022

Eng. Sci.

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Resistive zinc oxide (ZnO) sensors play a pivotal role in detecting various gases and vapors due to their high response, low cost, stability, tunability, and simple fabrication. Hence, it is necessary to know the recent status of research in resistive ZnO sensors. The sensitivity is determined by the reactions at the surface of the nanofiber (NF); therefore, the surface area defines the foremost sensor characteristics. Electrospun metal oxide NFs exhibit a high surface area and unique electrical properties that can be tuned, and they are highly sought as the materials for resistive gas sensors. So far, various strategies are adopted to improve the sensitivity and the selectivity of ZnO NFs. This review summarizes the recent methods utilized by various researchers to improve the sensitivity of the ZnO electrospun metal oxide NF-based resistive gas sensors. Also, it discusses the influence of process parameters on the structure and morphology of ZnO NFs, the mechanism of gas sensing and highlights its improvement through advanced methods. The sensitivity of the NF has been improved through tuning the structure and morphology of NFs and doping. Further, modification of NF sensitivity through functionalization, the addition of carbon nanomaterials, and high-energy irradiation are also discussed. Based on the recent literature, the performance of doped ZnO NF for various gas sensing is highlighted. The outcome of this review gives insight to academic researchers and industry for further investigation and development in resistive gas sensors and its applications.

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Preparation and characterizations of multifunctional PVA/ZnO nanofibers composite membranes for surgical gown application

Cited by 69 publications

References 13 publications

Long-Term Antibacterial Effect of Electrospun Polyvinyl Alcohol/Polyacrylate Sodium Nanofiber Containing Nisin-Loaded Nanoparticles

Long-Term Antibacterial Effect of Electrospun Polyvinyl Alcohol/Polyacrylate Sodium Nanofiber Containing Nisin-Loaded Nanoparticles

Antimicrobial properties of viscose yarns ring-spun with integrated amino-functionalized nanocellulose

Electrospun ZnO Nanofiber Based Resistive Gas/Vapor Sensors -A Review

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