Adsorption and Antibacterial Activity of Soluble and Precipitated Chitosan on Cellulose Viscose Fibers

Zemljič, Lidija Fras; Ristić, Tijana; Tkavc, Tina

doi:10.1177/155892501200700105

Cited by 18 publications

(14 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Several studies dealing with application of chitosan to impart antimicrobial efficiency to cellulose fibres, as well as fibre characterization were provided and reported from our group (Fras et al 2012;Zemljic et al 2013Zemljic et al , 2009. Zeta potential measurements of cellulose fibres functionalized with chitosan (CS) and trimethyl chitosan (TMC) nanoparticles were not reported until now.…”

Section: Introductionmentioning

confidence: 98%

Electrokinetic properties of fibres functionalised by chitosan and chitosan nanoparticles

2015

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 98%

Electrokinetic properties of fibres functionalised by chitosan and chitosan nanoparticles

2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this regard, functionalization is performed by the use of non-toxic, biodegradable and environmentally friendly reagents, which include alternative and less used polysaccharides and their derivatives such as chitosan (CS) [6]. Various procedures for viscose functionalization with CS have been presented until now [1,7,8,9,10,11,12,13]; however, attention has not been paid to washing durability of viscose functionalized with CS, to the best of our knowledge. For obtaining textiles with washing durable antibacterial activity, efficient and permanent fixation of CS into/onto viscose is of major importance.…”

Section: Introductionmentioning

confidence: 99%

Influence of Different Pretreatments on the Antibacterial Properties of Chitosan Functionalized Viscose Fabric: TEMPO Oxidation and Coating with TEMPO Oxidized Cellulose Nanofibrils

et al. 2019

View full text Add to dashboard Cite

The main objective of this study was to obtain chitosan functionalized viscose fabric with improved antibacterial properties and washing durability. In this regard carboxyl and aldehyde groups, as binding points for irreversible chitosan attachment into/onto viscose fabric, were introduced by two different pretreatments: 2,2,6,6-tetramethylpiperidine-1-oxy radical (TEMPO) oxidation and coating with TEMPO oxidized cellulose nanofibrils (TOCN). The Fourier transform infrared spectroscopy, elemental analysis, zeta potential measurements, scanning electron microscopy, breaking strength and antibacterial testing were used to evaluate the influence of these pretreatments on chitosan binding, but also on chemical, electrokinetic, morphological, mechanical and antibacterial properties of pretreated and chitosan functionalized viscose fabrics. Washing durability of chitosan functionalized viscose was monitored through changes in the chitosan content, electrokinetic and antibacterial properties after multiple washing. TOCN coating improves mechanical properties of fabric, while TEMPO oxidation deteriorates them. The results show that both pretreatments improve chitosan adsorption and thus antibacterial properties, which are highly durable to washing. After five washings, the chitosan functionalized pretreated viscose fabrics preserve their antibacterial activity against Staphylococcus aureus, while antibacterial activity against Escherichia coli was lost. TOCN coated and chitosan functionalized viscose fabric is a high value-added product with simultaneously improved antibacterial and mechanical properties, which may find application as medical textiles.

show abstract

“…This research clearly suggest that chemical bounds (-N=CH), which could be formed between aldehyde groups of oxidized cellulose and (deprotonated) amino groups of chitosan as proved in similar previous research [29], enables more stable coating of chitosan onto fiber surface. It has to be noted that at pH=5 (adsorption conditions) around 70 % of amino groups are protonated (pK value of chitosan is around 6.3) [28] and those groups are available for electrostatic interactions with partially deprotonated carboxyl groups. Residual 30 % of deprotonated amino groups are ideal for Schiff base formation (with fiber carboxyl groups).…”

Section: Gravimetric Methodsmentioning

confidence: 99%

“…The average values of the duplicates were, after multiplying by the dilution factor, converted into CFU/mL in the flasks. The antimicrobial activity was expressed as a R = % reduction of the organism after contact with the test specimen, compared to the number of bacterial cells surviving after contact with the control [26,28].…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Chemical Binding of Chitosan and Chitosan Nanoparticles onto Oxidized Cellulose

Šauperl

Kostić

Milanović

et al. 2015

Journal of Engineered Fibers and Fabrics

View full text Add to dashboard Cite

The aim of this study was to analyze binding of chitosan and chitosan nanoparticles onto cellulose via oxidized cellulose. The ability of chitosan and chitosan nanoparticles to be adsorbed onto surfaces was determined by the use of the XPS spectroscopy which provided information about chemical composition of the fiber surface. On the other hand, the gravimetric method was also used by which the amount of chitosan and chitosan nanoparticles bounded onto surface was calculated based on the difference in masses before and after functionalization. The most important was to study the influence of aldehyde groups on the stability of chitosan binding onto cellulose. Thus, desorption of chitosan/chitosan nanoparticles from the fiber surfaces was evaluated by the presence of total nitrogen (TN) in desorption bath as well as by polyelectrolyte titrations. Together with these two methods, desorption was evaluated also by gravimetric method, where the extent of desorption was evaluated on the basis of the differences in the masses of fibers before and after desorption. It is concluded that the chitosan and chitosan nanoparticles are more efficiently bounded onto oxidized cellulose in comparison with the nonoxidized (reference) ones. Despite the binding of the positively-charged amino groups with the negative groups of cellulose and consequently smaller amount of available/residual protonated amino groups that are responsible for bioactivity, such functionalized fibers are still specifically antimicrobial.

show abstract

Adsorption and Antibacterial Activity of Soluble and Precipitated Chitosan on Cellulose Viscose Fibers

Cited by 18 publications

References 19 publications

Electrokinetic properties of fibres functionalised by chitosan and chitosan nanoparticles

Electrokinetic properties of fibres functionalised by chitosan and chitosan nanoparticles

Influence of Different Pretreatments on the Antibacterial Properties of Chitosan Functionalized Viscose Fabric: TEMPO Oxidation and Coating with TEMPO Oxidized Cellulose Nanofibrils

Chemical Binding of Chitosan and Chitosan Nanoparticles onto Oxidized Cellulose

Contact Info

Product

Resources

About