Physicochemical and Biological Activity Analysis of Low-Density Polyethylene Substrate Modified by Multi-Layer Coatings Based on DLC Structures, Obtained Using RF CVD Method

Kyzioł, Karol; Oczkowska, Julia; Kottfer, Daniel; Klich, M.; Kaczmarek, Ł.; Kyzioł, Agnieszka; Grzesik, Z.

doi:10.3390/coatings8040135

Cited by 13 publications

(11 citation statements)

References 51 publications

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“…The cytotoxic effect of PU substrates, both the unmodified one and those after the deposition of DLC:N and/or DLC:Si layers on MG-63 and HaCaT cells, was performed using the colorimetric test of viability (Alamar Blue assay) as described above [27]. Briefly, the cells were seeded at a density of 50 × 10 4 cells suspended in 1 ml of culture media onto each of the samples placed inside 24-well microplates.…”

Section: Cytotoxicitymentioning

confidence: 99%

Deposition, morphology and functional properties of layers based on DLC:Si and DLC:N on polyurethane

et al. 2020

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DLC:Si and DLC:N (diamond-like carbons doped with Si or N) functional layers in different configurations are deposited on polyurethane (PU) for bioengineering applications using CCP (capacitively coupled plasma) discharge generated in the PE CVD (plasma-enhanced chemical vapor deposition) system. Scanning electron microscopy (SEM) observations show that the obtained single and multilayers are continuous and well adherent to the substrates, but they differ in surface morphologies. DLC:Si layers form granular-like outer surfaces, while DLC:N ones a mosaic structure of plain areas. Topography analyses by atomic force microscopy (AFM) and optical profilometry reveal that Si-doped layers are characterized by significantly higher surface roughness (Ra ca. 5 nm) in comparison to N-doped layers (Ra ca. 0.3 nm) and also higher values of profile roughness parameter Rz (up to 32 μm vs. about 13 μm). Energy-dispersive X-ray spectroscopy (EDS) analysis indicates the homogenous chemical composition of the layers. DLC:N layers, are characterized by significantly higher polar component of surface free energy (up to ca. 5.0 mJ/m2). DLC:Si layers exhibit higher values of diiodomethane contact angle (up to ca. 90°) compared with DLC:N layers (up to ca. 55°). The attenuated total reflectance Fourier transform infrared spectroscopic measurements (ATR-FTIR) of the layers reveal that the addition of silicon to the DLC structure increases the content of terminal CHn bonds (n = 1, 2, 3) as well as beneficial Si–H and Si–CHn bonds, which significantly reduce the internal stresses in the layers. Both DLC:Si and DLC:N layers exhibit no cytotoxic effects using the human osteoblast-like cell line and human keratinocytes.

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Section: Cytotoxicitymentioning

confidence: 99%

Deposition, morphology and functional properties of layers based on DLC:Si and DLC:N on polyurethane

et al. 2020

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“…This high rate of complications associated with decreasing reimbursement for the operation alone has reduced the usability of the tissue expanders themselves in the current medical environment even despite the large amount of procedures. Therefore, it has become a necessity to design a technique that would reduce this complication while maintaining the effectiveness of the reconstruction technique, significantly improving the clinical utility of tissue extension [37,[44][45][46][47][48]. These objectives have been achieved in many surgical areas using endoscopic approaches to performing routine procedures.…”

Section: Complications Of Tissue Expansionmentioning

confidence: 99%

New Technologies of Tissue Expansion - Review Article

Trebuňová¹,

Živčák²,

Hudák³

et al. 2019

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Currently, plastic surgeons are often challenged to reconstruct extensive and complex tissue defects in various areas of the body. Despite the availability of a variety of operative approaches in practice that are applicable in the long term for the reconstruction of tissue defects, donor and autologous transplants, skin grafts, implants, etc., the result is often not satisfactory. Restrictions of these techniques in restoring and repairing tissue serve as a driving force for the development of new techniques, the development of adipose tissue in tissue engineering. From a didactic point of view, the expansion could be divided into 3 rd groups. The first group consists of physiological expansion, e.g. growth of an individual. The second group includes pathological expansion, i. skin growth over areas of tumours. The third group includes artificial expansion, which was an important part of cosmetic or ethnic adaptations for some tribes. This review article is addresses the application of tissue expansion in various types of tissues, skin, muscles and bones, as well as its localization and its side effects.

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“…Plasma surfacing is one of the widely used methods for steel surface strengthening [1][2][3] owing to several advantages, including the wide variety of surfacing materials, low dilution rate, and high production efficiency [4,5]. Compared with thermal spraying and chemical deposition, plasma surfacing increases the bonding force of the surfacing layer formed with the matrix, resulting in metallurgical bonding and a thickness larger than that obtained using other methods [6][7][8][9][10][11]. The performance of the surfacing layer is closely linked to the material from which it is made.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Content and Elements Mo and V on the Microstructure and Properties of Stainless Steel Powder Surfacing Layer

Wei

Han

et al. 2020

Coatings

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This study evaluated the effect of an increase in carbon content and the presence of the elements Mo and V on the microstructure and properties of the surfacing layer of stainless steel powder for knives and scissors production. Various types of high-quality stainless steel powder (5Cr 13 , 8Cr 13 , and 8Cr 13 MoV) were deposited on the surface of low-grade stainless steel used to produce knives and scissors (2Cr 13 ). The microstructure, comprehensive hardness, wear resistance, impact toughness, and corrosion resistance of the stainless steel powder surfacing layers were tested and analyzed. Results indicate that the increase in carbon content and the presence of Mo and V improve the comprehensive hardness and wear resistance of the stainless steel powder surfacing layer, and both exert the superposition effect. However, the increase in carbon content and the presence of Mo and V slightly influence the impact toughness of the surfacing layer. In addition, the increase in carbon content significantly reduces the corrosion resistance of the surfacing layer. This adverse effect is reduced when Mo and V exist. Other advantages of the presence of Mo and V in the stainless steel powder surfacing layer include the refinement of grain size, reduction of carbide particle size, and improvement of the metallurgical bonding of the surfacing layer and the matrix.Coatings 2020, 10, 371 2 of 16 barber tools, which are seldom used in daily life. Therefore, to manufacture high-quality knives and scissors that can be used by the general public, this study explores a method to produce such instruments by plasma surfacing. The surfacing layer obtained by plasma surfacing can achieve large thickness [20,21]. This characteristic is used for surfacing powders of high-grade materials for knife and scissors production on the surface of massive low-grade materials for knife and scissors production. The composite material is then longitudinally cut. The thicker surfacing layer is directly used to produce the edge of knives and scissors, while the matrix (low-grade materials) is used to produce the body of knives and scissors. The method belongs to local strengthening of knives and scissors. The advantage of this method is that only the edge of a knife or scissors is mainly forced and abraded during use [22][23][24]; most high-grade materials are in an idle state of inaction. Limiting the use of high-grade materials to the production of the edge of a knife or scissors can not only meet the requirements for knife and scissors production but also reduce waste (of high-quality materials) and limit costs. However, no studies have been reported on surfacing high-quality stainless steel powder for knife and scissors production, and no methods have been developed to evaluate the microstructure and properties of the surfacing layer of high-quality stainless steel powder for such production.This study mainly aims to explore the microstructure and properties of the surfacing layer of high-quality stainless steel powder for knife and scissors product...

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Physicochemical and Biological Activity Analysis of Low-Density Polyethylene Substrate Modified by Multi-Layer Coatings Based on DLC Structures, Obtained Using RF CVD Method

Cited by 13 publications

References 51 publications

Deposition, morphology and functional properties of layers based on DLC:Si and DLC:N on polyurethane

Deposition, morphology and functional properties of layers based on DLC:Si and DLC:N on polyurethane

New Technologies of Tissue Expansion - Review Article

Effect of Carbon Content and Elements Mo and V on the Microstructure and Properties of Stainless Steel Powder Surfacing Layer

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