Nanoparticles: a novel use in bioactive textiles

Gadkari, Rahul R.; Ali, S. Wazed; Das, Apurba; Alagirusamy, R.

doi:10.1016/b978-0-12-821381-0.00013-2

Cited by 3 publications

(4 citation statements)

References 31 publications

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“…Silver leaching-out behavior of optimized CS/PLA/AgNW composite nanofibrous membrane was determined using static method. [34,38] For this, 10 mg CS/PLA/AgNW composite nanofibrous membrane was immersed into the flask containing phosphate buffer saline keeping 1:100 M:L ratio. After this, the flask was kept in a temperature-controlled environment (37 ± 3 °C) under shaking at 100 rpm for 36 h. The amount of silver released from membrane was measured by atomic absorption spectrometry (ICP-MS Agilent 7900), at different time intervals (30 min, 1, 2, 8, 12, and 36 h).…”

Section: Assessment Of Silver Leach-outmentioning

confidence: 99%

“…[34][35][36] However, as AgNPs are prone to leaching out, they might enter the filtered water. [31,34,[37][38][39] Notably, according to WHO guidelines, higher levels of silver in drinking water (>0.1 ppm) may pose a risk to human health. [40] Thus, it is required to find another variant of nano-silver, which integrates better within the fibrous structure of the filter membrane and does not leach-out.…”

Section: Introductionmentioning

confidence: 99%

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Silver Nanowires Embedded Chitosan/Poly‐Lactic Acid Electrospun Nanocomposite Web Based Nanofibrous Multifunctional Membrane for Safe Water Purification

Gadkari

Ali

Das

et al. 2022

Advanced Sustainable Systems

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This paper reports the development of a three‐layer antibacterial cartridge system for water filtration applications. Chitosan/poly(lactic acid) (CS/PLA) nanofibers with various blend ratios are produced through an electrospinning technique. Finer and more uniform nanofibers are obtained at a 70/30 CS/PLA blend ratio, which demonstrate average 86% and 84% antibacterial activity against Staphylococcus aureus (S. aureus, Gram positive) and Escherichia coli (E. coli, Gram negative) bacteria, respectively. In order to further enrich the antibacterial activity, silver nanowires (AgNWs) are synthesized by a Solvothermal method and loaded into 70/30 CS/PLA nanofibers, in varying concentrations, to fabricate a CS/PLA/AgNW composite nanofibrous membrane. The CS/PLA/AgNW nanofibrous membrane loaded with 3% AgNWs demonstrates 100% antibacterial activity against both types of bacteria. The developed novel materials also adsorb heavy metal ions. Moreover, the silver leach‐out tendency of this fibrous web is found to be just 0.003 ppm over a 36 h time frame, which is well within the acceptable limit prescribed by WHO (<0.1 ppm). This 3% CS/PLA/AgNW composite nanofibrous membrane is coated over polyester nonwoven and used as a middle‐layer in the development of a three‐layer antibacterial cartridge system, which effectively removes bacterial and heavy metal ion contaminants from pond water to an extent desired to deem it potable.

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Section: Assessment Of Silver Leach-outmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Silver Nanowires Embedded Chitosan/Poly‐Lactic Acid Electrospun Nanocomposite Web Based Nanofibrous Multifunctional Membrane for Safe Water Purification

Gadkari

Ali

Das

et al. 2022

Advanced Sustainable Systems

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“…The antenna effect can, for instance, raise the excitation rates of a quantum dot (QD) leading to higher yield of fluorescence and reactive species (Holzinger et al 2014). Thus, AgNPs and AuNPs, when associated with different matrices such as polymers and textiles, can give virucidal properties for these materials (Simoncic & Tomsic 2010, Gadkari et al 2020. Films of poly (3-hydroxybutyrate-co-3-hydroxy valerate) (PHBV) associated with AgNPs revealed an efficient virucidal activity.…”

Section: Gold and Silver Nanoparticlesmentioning

confidence: 99%

Promising Nanostructured Materials against Enveloped Virus

Toledo

Lanfredi

et al. 2020

An. Acad. Bras. Ciênc.

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“…Through the literature, it is evidenced that CHI can be used in various applications, including cosmetics, biomedicine, food packaging, and environmental applications. [ 1–7 ] Pickering Emulsion (PE) has been an object of scientific interest due to the possibility of dispersing hydrophobic compounds in an aqueous solvent through solid substances that act as stabilizers. [ 8–12 ] Due to the extraordinary colloidal stability and the possibility to control the diameter of the oil droplets from 1 nm to several µm, PE are interesting for many versatile applications.…”

Section: Introductionmentioning

confidence: 99%

Filling of Chitosan Film with Wax/Halloysite Microparticles for Absorption of Hydrocarbon Vapors

Caruso,

D'Agostino,

Wasserbauer

et al. 2024

Advanced Sustainable Systems

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The effect of the preparation protocol of chitosan (CHI) based films filled with wax microparticles stabilized by halloysite nanotubes (HNTs) in Pickering emulsions (PE) is investigated. The obtained results show that the addition of acetic acid (before or after the preparation of wax/HNT microspheres) affects the properties of the composite films as well as the colloidal stability of PE. The colloidal behavior of CHI/HNT/wax PE by optical microscopy and sedimentation tests are studied. On the other hand, the corresponding composite films (prepared by solvent casting method) are characterized through several techniques, including Scanning Electron Microscopy, UV–vis spectrometer, water permeability, and contact angle measurements. Dynamic Mechanical Analysis allows this to estimate the effect of wax microparticles on the tensile performances of CHI‐based films. As a general consideration, the filling of the CHI matrix with wax/HNT improves the physicochemical properties of the films. Finally, the efficacy of the films as adsorbents of n‐dodecane vapors is explored. Due to the presence of hydrophobic domains (wax embedded in CHI), the composite films possess higher adsorption efficiencies compared to pristine CHI. Accordingly, it can be stated that the combination of CHI with wax/HNT microparticles is promising to obtain biocompatible composite films useful for remediation purposes.

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Nanoparticles: a novel use in bioactive textiles

Cited by 3 publications

References 31 publications

Silver Nanowires Embedded Chitosan/Poly‐Lactic Acid Electrospun Nanocomposite Web Based Nanofibrous Multifunctional Membrane for Safe Water Purification

Silver Nanowires Embedded Chitosan/Poly‐Lactic Acid Electrospun Nanocomposite Web Based Nanofibrous Multifunctional Membrane for Safe Water Purification

Promising Nanostructured Materials against Enveloped Virus

Filling of Chitosan Film with Wax/Halloysite Microparticles for Absorption of Hydrocarbon Vapors

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