Assessment of antibacterial activity of herbal finished surface modified polypropylene nonwoven fabric against bacterial pathogens of wound

Nithyakalyani, D.; Ramachandran, T.; Rajendran, R.; Muthusamy, M.

doi:10.1002/app.38765

Cited by 18 publications

(7 citation statements)

References 16 publications

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“…Namely, hydrophobic surfaces can be turned to hydrophilic, while hydrophilic materials become hydrophobic [130] after immersion in an aqueous solution of hydrophobin. Textile materials can be finished with various functionalization agents, such as chitosan microcomposites [131] or nanocomposites [132,133], medicinal herbs [134], nisin [135], polyhexamethylene biguanide [136], or PMMA nanocomposites [137], in order to obtain new surface properties like antimicrobial, hydrophobicity, resistance to laundering, or protection against decoloration. Due to exceptional surface properties and to the tuning opportunities, their use is envisaged in cosmetic industry, polymer emulsion synthesis, and biosensing [138].…”

Section: Znomentioning

confidence: 99%

Wettability of Nanostructured Surfaces

Duta¹,

Popescu²,

Zgura³

et al. 2015

Wetting and Wettability

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There are many studies in literature concerning contact angle measurements on different materials/substrates. It is documented that textiles can be coated with multifunctional materials in form of thin films or nanoparticles to acquire characteristics that can improve the protection and comfort of the wearer. The capacity of oxide nanostructures to inhibit fungal development and neutralize bacteria is a direct consequence of their wetting behavior [1-6]. Moreover, the radical modification of wetting behavior of nanostructures from hydrophilic to hydrophobic when changing the pulsed laser deposition (PLD) ambient will be thoroughly discussed. When an implant is introduced inside the human body, its surface is first wetted by the physiological fluids. This further controls the proteins adsorption followed by the attachment of cells to the implant surface. Hence, surface wettability is considered an important criterion that dictates biocompatibility of the implant and could stand for a decisive factor for its long-term stability inside the human body. In Section 1 of this chapter, the reader is briefly introduced to wetting phenomenon, and correlations between well-known Young, Cassie, and Wenzel approaches are made. Next, one of the most spread techniques to measure the wettability of surface, the contact angle measurement, is thoroughly explained and relevant examples are given. Section 2 begins with a summarized table about previous works on synthesis of hydrophobic or hydrophilic nanostructures with a special focus on ZnO, SiO x , TiO 2 , and DLC materials. A short presentation of the advantages of their synthesis by PLD, sol-gel, thermal evaporation, solution based on chemical approaches, sputtering, and plasma enhanced chemical vapor deposition will be introduced.

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Section: Znomentioning

confidence: 99%

Wettability of Nanostructured Surfaces

Duta¹,

Popescu²,

Zgura³

et al. 2015

Wetting and Wettability

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“…Nithakalyani et al [12] have assessed the antibacterial activity of herbal surface modified PP nonwoven fabric against bacterial wound pathogens. The herbal-coated fabric showed 99% bacterial reduction which is tested according to AATCC 100 method.…”

Section: Self-polymerization Psmentioning

confidence: 99%

Improvement of Polypropylene Properties by Irradiation / Grafting and other Modifications.

Gawish¹,

Mosleh

Ramadan

2018

Egypt. J. Chem.

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P OLYPROPYLENE (PP) is a cheap fabric, bearing chemical resistance and excellent mechanical properties. PP is hydrophobic in nature, inactive synthetic fabric due to the absence of reactive functional groups in the molecular structure, thus preventing its dyeing. For this reason, PP fibers are modified by irradiation methods to form free radical centers onto the surface and graft copolymerization of selected vinyl monomers. Different irradiation techniques are adopted involving plasma discharge, electron beams, ozone, UV, γ-rays and others. PP is grafted with selected monomers including methacrylate derivatives such as (2N-Dimethyl amino ethyl methacrylate, 2N morpholino ethyl methacrylate, 2-ethyl methacrylate phosphoric acid, methyl methacrylate, 2-hydroxy ethyl methacrylate) acrylic acid, styrene, chloro methyl styrene, vinyl acetate etc... The different variable factors affecting irradiation and grafting reactions are considered such as irradiation dose, storage time of irradiated fabric, monomer concentration, reaction time and temperature. Physical properties of grafted and those containing tertiary amino quaternized groups are improved for increase of moisture regain, melting point and enhancement affinity to dyeing by different classes of dyestuffs. The important properties improvement include ion exchange capacity, electrical conductivity, antistatic, insect repellent activity antibacterial property. PP containing Ag, Zn, ZnO, TiO 2 , Cu, Cu 2 O nano particles are antibacterial fabrics which are used as wound healing dressings.

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“…Different research groups did a plasma pretreatment on cotton and polyproplyne (PP) nonwovens respectively, followed by the immobilization of natural products [67][68][69]. Vaideki et al compared the uptake of neem leaf extract before and after RF air plasma treatment and found that both the increase in wettability as well as the surface etching resulted in a superior adsorption of the extract [67].…”

Section: Plasma Activation Grafting and Intermediate Bondingmentioning

confidence: 99%

“…Vaideki et al compared the uptake of neem leaf extract before and after RF air plasma treatment and found that both the increase in wettability as well as the surface etching resulted in a superior adsorption of the extract [67]. Nitkyakalyani et al made a mix of herbal plant parts that were dried and grinded after which they were dissolved so the PP could be soaked in it [68]. A wide variety of both Gram positive and negative bacteria were tested and excellent antimicrobial activity was noted.…”

Section: Plasma Activation Grafting and Intermediate Bondingmentioning

confidence: 99%