Synthesis and characterization of chitosan and silver loaded chitosan nanoparticles for bioactive polyester

Ali, S. Wazed; Rajendran, S.; Joshi, Mangala

doi:10.1016/j.carbpol.2010.08.004

Cited by 397 publications

(179 citation statements)

References 21 publications

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“…Nevertheless, bacterial growth was not observed in any of the lines residing under the treated fabric. These results are indeed consistent with the findings previously published by Scholz et al [37], Tessier et al [38] and Ali et al [39].…”

Section: Antimicrobial Activity Of Agnps Treated Fabricsupporting

confidence: 94%

Biosynthesis and evaluation of the characteristics of silver nanoparticles using Cassia fistula fruit aqueous extract and its antibacterial activity

Ghafoori

Entezari

Taghva

et al. 2017

Adv. Nat. Sci: Nanosci. Nanotechnol.

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There are several ways to produce nanoparticles, but the biological method of nanoparticle production is considered most efficient by researchers due to its eco-friendly and energy saving properties. In this study, the biosynthesis of silver nanoparticles (AgNPs) via Cassia fistula fruit pulp extract was examined. Furthermore, its antibacterial effects were investigated both in vitro and in vivo. To achieve biosynthesis, 10 ml of C. fistula extract was added to 90 ml of aqueous solution of 1 mM silver nitrate. The solution was incubated in darkness overnight, at room temperature. After changing the color of solution, the production of AgNPs was examined by UV–Vis spectrophotometry, XRD and DLS methods. Finally, the antibacterial activity of AgNPs was investigated by using three methods: (1) agar well diffusion, (2) MIC determining and (3) effect on prevention of infection in wound on rat models. The results revealed that synthesized silver nanoparticles have strong antibacterial activity in vitro and in vivo conditions. Undeniably, further research is required to investigate the side effects of such particles.

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Section: Antimicrobial Activity Of Agnps Treated Fabricsupporting

confidence: 94%

Biosynthesis and evaluation of the characteristics of silver nanoparticles using Cassia fistula fruit aqueous extract and its antibacterial activity

Ghafoori

Entezari

Taghva

et al. 2017

Adv. Nat. Sci: Nanosci. Nanotechnol.

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“…The effectiveness of chitosan's nanoparticles is seen from the comparison of samples treated only with bulk chitosan (at pH = 7). Ali et al (2011b) have also observed greater bacterial reduction of nano-chitosan functionalized-PET fabric compared to bulk chitosantreated fabric. Surprisingly, sample CSNP4 show a similar antibacterial activity compared to CS-S4, despite the introduction of nanoparticles onto the fibres.…”

Section: Antimicrobial Activity Of Cs-treated Fibresmentioning

confidence: 80%

“…0.1 % (w/v) of sodium tripolyphosphate (TPP) solution was added to a fixed volume of chitosan or trimethyl chitosan solution in order to obtain 5:1 chitosan to TPP weight ratio. This ratio was chosen according to the previously published work, reporting it as an optimal ratio for obtaining desirable antimicrobial activity of nanoparticles' dispersion (Ali et al 2011a), as well as efficient antimicrobial coating for textile materials (Ali et al 2011b). Particles were formed spontaneously under magnetic stirring for 1 h at room temperature.…”

Section: Preparation Of Chitosan Nanoparticles Dispersionsmentioning

confidence: 99%

Electrokinetic properties of fibres functionalised by chitosan and chitosan nanoparticles

2015

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Adsorption of chitosan solution as well as chitosan nanoparticles dispersion onto cellulose fibres was implemented at pH = 4 and 7, respectively, in order to investigate the influence of different pH values on chitosan macromolecules' conformation and consequently on its adsorption ability and resultant coating morphology, as well as on antimicrobial activity of coated fibres. Adsorption capacity, charging behaviour and electrokinetical response of fibres at different pH values were analysed by determining zeta potential. Obtained results were related to the antimicrobial activity of fibres, determined by standard ASTM E2149 method.

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“…[9] It was also reported that chitosan can be used as finishing materials for polyester fabric to enhance antimicrobial activity. [10] A report on the improvement in the antibacterial activity of cotton fabrics treated with chitosan nanoparticles suggested that an increase of the nanoparticle concentration would increase the antibacterial activity. [11] The application of nanoparticles to textile materials is an interest of several studies which aimed to improve functional surface modifications.…”

Section: Introductionmentioning

confidence: 98%

Potential Antibacterial Activity of Polystyrene Nanoparticles/Chitosan Coated on Cotton Fabrics

Siralertmukul

Watcharamul

Wicheanpaisan

et al. 2015

Macromolecular Symposia

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Summary: This research is to study the potential of using polystyrene nanoparticles and chitosan solution to increase the anti-bacterial activity on cotton fabrics prepared by a conventional pad-dry-cure method. Firstly, cotton fabrics were coated with chitosan solutions at the concentrations of 0.1, 0.5, and 1.0 (%w/v) and tested for the antibacterial property which was determined by clear zone measurement and viable count assay using Escherichia coli (ATCC 25922) as a tested microorganism. The results showed that, the percentage bacterial reductions were 87.2, 86.3, and 48.5%, respectively, when the cotton fabrics was coated only with chitosan solution. When polystyrene nanoparticle solution was coated onto cotton fabrics prior to coating with chitosan solutions at the concentrations of 0.1, 0.5, and 1.0 (%w/v), the percentage bacterial reductions were 90.3, 90.8, and 65.5%, respectively. This indicated that coating the cotton fabrics with polystyrene nanoparticles prior to chitosan coating would remarkably increase the antibacterial activity. The scanning electron micrographs showed that polystyrene nanoparticles were aggregated and inserted in between the interfiber spacings. The thin film of chitosan was also observed on the surface of cotton fabrics and hydrophobic property of the fabrics was tested via contact angle measurement.

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Synthesis and characterization of chitosan and silver loaded chitosan nanoparticles for bioactive polyester

Cited by 397 publications

References 21 publications

Biosynthesis and evaluation of the characteristics of silver nanoparticles using Cassia fistula fruit aqueous extract and its antibacterial activity

Biosynthesis and evaluation of the characteristics of silver nanoparticles using Cassia fistula fruit aqueous extract and its antibacterial activity

Electrokinetic properties of fibres functionalised by chitosan and chitosan nanoparticles

Potential Antibacterial Activity of Polystyrene Nanoparticles/Chitosan Coated on Cotton Fabrics

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