Antibacterial efficiency of cellulose-based fibers covered with ZnO and Al2O3 by Atomic Layer Deposition

Popescu, M.; Ungureanu, Camelia; Buse, E.; Nastase, F.; Ţucureanu, Vasilica; Suchea, M.; Draga, S.; Popescu, Marian

doi:10.1016/j.apsusc.2019.03.268

Cited by 45 publications

(28 citation statements)

References 77 publications

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“…The growth of these nanostructures on the surface of the fibres has proven to be useful for increasing the interfacial adhesion between fibre and matrix, at least for synthetic fibres [57,58]. In literature there are very few studies investigating the effect of ZnO on natural fibres and specifically one is more focused on the antibacterial effect of ZnO on cellulose-based fibres [59] and the other is focused on the role that zinc oxides have in interfacial adhesion using poly (lactic acid) as a matrix [60]. Therefore, the ZnOs are of great interest both for the possibility of increasing the interfacial adhesion in composites but also for the ability to add new functionalities to natural fibres, such as antibacterial activity.…”

Section: Introductionmentioning

confidence: 99%

Interface tailoring between flax yarns and epoxy matrix by ZnO nanorods

Sbardella

Lilli

Seghini

et al. 2021

Composites Part A: Applied Science and Manufacturing

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The ideal mechanical performance of a composite is controlled by the level of interfacial adhesion and to overcome the incompatibility issues between plant fibres and polymeric matrices, the surface of flax yarns has been modified by zinc oxide (ZnO) nanostructures. The ZnO nanorods were synthesized through a lowtemperature hydrothermal treatment, and several parameters have been analysed in order to obtain a uniform and homogeneous ZnO interphase, such as the number of the seeding cycles, the growth reaction times and the replacement of the growth solution. The results showed that it is possible to obtain highly oriented and well aligned ZnO nanostructures (by FE-SEM), with an hexagonal wurtzite structure (by XRD) and a high degree of coverage along the whole yarn (by TGA), reducing the number of the seed cycles, with rather long growth times (5 hours) and substituting the growth solution at least once during the synthesis. The experimental conditions preserved the breaking force of the yarns, while Single Fibre Fragmentation Tests (SFFT) highlighted a better interfacial adhesion of ZnO-modified flax yarns with epoxy matrix, which displayed a 29 % reduction in average debonding length relative to untreated yarns.

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Section: Introductionmentioning

confidence: 99%

Interface tailoring between flax yarns and epoxy matrix by ZnO nanorods

Sbardella

Lilli

Seghini

et al. 2021

Composites Part A: Applied Science and Manufacturing

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“…Other methods of incorporation have been used by Lu et al [71], through the functionalization of a non-woven fabric with a side-by-side fiber configuration combining the wet paper manufacturing method and the thermal bonding process. ZnO like other semiconductor oxides (TiO2, SiO 2 and Al 2 O 3 ) is used as a UV shield [72] and other antibacterial applications that grant this type of nanoparticles including silver and copper; it comprises the Rayleigh dispersion, specifically between 200 to 400 nm [73]. Some inert textile surfaces must be pretreated to make certain functional groups available at the junction with the finishing agents (nanocomposites and others).…”

Section: Claysmentioning

confidence: 99%

Nanocomposite and biodegradable polymers applied to technical textiles

Caicedo

Melo-López

Cabello-Alvarado

et al. 2019

DYNA

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Based on the results of research papers reflected in the scientific literature, the main examples, methods and perspectives for the development of technical textiles are considered. The focus of this work is to concentrate the results obtained for different textile applications (technical textiles) through the use of biodegradable polymers modified and improved with nanoparticles. The techniques for obtaining polymeric nanocomposites, finishing processes, type and structure of textiles are specified. In general, key aspects are identified for a better understanding of the technical challenges and physicochemical effects of the fibers.

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“…Investigations confirmed that it works as a powerful biocide and antioxidant in both the biomedical and pharmaceutical industries. Besides, ZnO in the form of nanoparticles exhibits photocatalytic properties similar to those of titanium oxide, which, in combination with the lower cost of ZnO, may allow its use in large-scale water purification [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

“…After implantation of the biomaterial into the living organism, it comes into direct contact with body fluid. Dynamic phenomena occurring on the surface of the biomaterial, which take place after its implementation, will have a strong impact on the life expectancy of the implant [ 4 , 5 , 12 , 13 , 14 , 15 , 16 , 24 , 25 ].…”

Section: Introductionmentioning

confidence: 99%

“…In the case of the ZnO layer, the ALD temperature window has been investigated by many authors, and there exists no doubt regarding this matter [ 2 , 4 , 7 , 8 , 9 , 18 , 19 , 20 , 21 , 35 , 36 , 37 ]. Unfortunately, there is little research work related to determining the optimal number of ALD cycles for this layer applied to a steel substrate, which would ensure the best performance properties, in particular corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Structure and Properties of ZnO Coatings Obtained by Atomic Layer Deposition (ALD) Method on a Cr-Ni-Mo Steel Substrate Type

et al. 2020

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This paper aimed to investigate the structure and physicochemical and tribological properties of ZnO coatings deposited by ALD on 316L stainless steel for biomedical applications. To obtain ZnO films, diethylzinc (DEZ) and water were used as ALD precursors. Zinc oxide layers were deposited at the same temperature of 200 °C using three types of ALD cycles: 500, 1000 and 1500. The structure and morphology of ZnO coatings were examined using SEM and AFM microscopes. The XRD and GIXRD methods were used for the phase analysis of the obtained coatings. To determine the resistance to pitting corrosion, potentiodynamic investigations and impedance spectroscopy were conducted in a Ringer solution at a temperature of 37 °C. The obtained results showed that the number of ALD cycles had a significant impact on the structure, morphology and corrosion resistance of the ZnO layers. It was found that after increasing the coating thickness of the ZnO on the material, its electrochemical properties determining the corrosion resistance also increased. Moreover, on the basis of the ball-on-plate tribological investigations, we found a significant reduction in the friction coefficient of the samples with the investigated coatings in relation to the noncoated substrates.

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Antibacterial efficiency of cellulose-based fibers covered with ZnO and Al2O3 by Atomic Layer Deposition

Cited by 45 publications

References 77 publications

Interface tailoring between flax yarns and epoxy matrix by ZnO nanorods

Interface tailoring between flax yarns and epoxy matrix by ZnO nanorods

Nanocomposite and biodegradable polymers applied to technical textiles

Structure and Properties of ZnO Coatings Obtained by Atomic Layer Deposition (ALD) Method on a Cr-Ni-Mo Steel Substrate Type

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