Combustion synthesis of Ti-C-Co-Ca3(PO4)2-Ag-Mg electrodes and their utilization for pulsed electrospark deposition of bioactive coatings having an antibacterial effect

Litovchenko, N. V.; Potanin, A. Yu.; Zamulaeva, E. I.; Сухорукова, И. В.; Pogozhev, Yu. S.; Gloushankova, Natalia A.; Ignatov, Sergei G.; Левашов, Е. А.; Shtansky, Dmitry V.

doi:10.1016/j.surfcoat.2016.11.030

Cited by 7 publications

(6 citation statements)

References 35 publications

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“…baumannii), and Enterococcus faecium (E. faecium)) that were in the parts per million (ppm) range, whereas numerous studies demonstrated a noticeable antibacterial effect for substantially lower bactericide ion concentrations in the parts per billion (ppb) range. , Ag-doped films were reported to demonstrate a fast and pronounced antibacterial effect at a very low Ag ion concentration of 0.1–0.3 ppb . Heavy metals (Cr, Co, Cu, Au, Fe, Ni, Pt, Ag, Ta, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…19 For example, Vaidya et al 20 reported minimal bactericidal concentrations for five types of bactericidal ions (Ag, Cu, Pt, Au, and Pd) against three types of bacteria (Klebsiella pneumoniae (K. pneumoniae), Acinetobacter baumannii (A. baumannii), and Enterococcus faecium (E. faecium)) that were in the parts per million (ppm) range, whereas numerous studies demonstrated a noticeable antibacterial effect for substantially lower bactericide ion concentrations in the parts per billion (ppb) range. 11,21 Ag-doped films were reported to demonstrate a fast and pronounced antibacterial effect at a very low Ag ion concentration of 0.1−0.3 ppb. 22 Heavy metals (Cr, Co, Cu, Au, Fe, Ni, Pt, Ag, Ta, etc.)…”

Section: Introductionmentioning

confidence: 99%

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TiCaPCON-Supported Pt- and Fe-Based Nanoparticles and Related Antibacterial Activity

Ponomarev

Sheveyko

Permyakova

et al. 2019

ACS Appl. Mater. Interfaces

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A rapid increase in the number of antibiotic-resistant bacteria urgently requires the development of new more effective yet safe materials to fight infection. Herein, we uncovered the contribution of different metal nanoparticles (NPs) (Pt, Fe, and their combination) homogeneously distributed over the surface of nanostructured TiCaPCON films in the total antibacterial activity toward eight types of clinically isolated bacterial strains ( Escherichia coli K261, Klebsiella pneumoniae B1079k/17-3, Acinetobacter baumannii B1280A/17, Staphylococcus aureus no. 839, Staphylococcus epidermidis i5189-1, Enterococcus faecium Ya-235: VanA, E. faecium I-237: VanA, and E. coli U20) taking into account various factors that can affect bacterial mechanisms: surface chemistry and phase composition, wettability, ion release, generation of reactive oxygen species (ROS), potential difference and polarity change between NPs and the surrounding matrix, formation of microgalvanic couples on the sample surfaces, and contribution of a passive oxide layer, formed on the surface of films, to general kinetics of the NP dissolution. The results indicated that metal ion implantation and subsequent annealing significantly changed the chemistry of the TiCaPCON film surface. This, in turn, greatly affected the shedding of ions, ROS formation, potential difference between film components, and antibacterial activity. The presence of NPs was critical for ROS generation under UV or daylight irradiation. By eliminating the potential contribution of ions and ROS, we have shown that bacteria can be killed using direct microgalvanic interactions. The possibility of charge redistribution at the interfaces between Pt NPs and TiO 2 (anatase and rutile), TiC, TiN, and TiCN components was demonstrated using density functional theory calculations. The TiCaPCON-supported Pt and Fe NPs were not toxic for lymphocytes and had no effect on the ability of lymphocytes to activate in response to a mitogen. This study provides new insights into understanding and designing of antibacterial yet biologically safe surfaces.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

TiCaPCON-Supported Pt- and Fe-Based Nanoparticles and Related Antibacterial Activity

Ponomarev

Sheveyko

Permyakova

et al. 2019

ACS Appl. Mater. Interfaces

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“…In all of the synthesized samples, a ternary compound of complex titanium and cobalt phosphite CoTiP, calcium oxide CaO, and an Ag-based substitution solid solution with a cubical lattice are present. The calculated value of the silver lattice constant equals from 4.104 to 4.117 Å, which greatly exceeds its standard value (a = 4.086 Å), and can be a consequence of the dissolution of Mg in Ag [7]. In the sample obtained from the charge mixture activated for 9 min, besides calcium oxide, there is 5% of MgO.…”

Section: Research Results and Discussionmentioning

confidence: 71%

“…%, respectively, in the composition. Low-energy mixing was performed in a ball rotating mill (BRM) (MISiS, Moscow, Russia) at the following technological parameters: the working volume of the hard-alloy drum was 3 L, the drum rotational speed was 100 rpm, the ratio of the hard-alloy balls' mass to the charge mixture mass was 6:1, and the mixing time was 8 h [7]. High-energy mixing (mechanical activation) was performed in an Aktivator-2S (OOO Machine-Building Plant "Aktivator", Novosibirsk, Russia) high-speed planetary centrifugal mill (PCM) in inert argon atmosphere (1 atm.)…”

Section: Introductionmentioning

confidence: 99%

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Ceramic Materials in a Ti–C–Co–Ca3(PO4)2–Ag–Mg System Obtained by MA SHS for the Deposition of Biomedical Coatings

Potanin

Pogozhev

Новиков

et al. 2017

Metals

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This study aimed to obtain biocompatible ceramic materials in a Ti-C-Co-Ca 3 (PO 4 ) 2 -Ag-Mg system by the combustion mode of mechanically activated (MA) reaction mixtures. The influence of the MA time on the reaction ability capability of the mixtures, on their structural and chemical homogeneity, on the combustion parameters and structural-phase conversions in the combustion wave, as well as on the structure and phase composition of the electrode materials has been researched. It was found that the intense treatment of powder mixtures causes plastic deformation of components, the formation of lamellar composite granules, a reduction in the sizes of coherent scattering regions, and also the formation of minor amounts of products. The influence of the activation duration of the ignition temperature and heat release during the combustion of the reaction mixtures was studied. By the method of quenching the combustion front, it was demonstrated that in a combustion wave, chemical transformations occur within the lamellar structures formed during the process of mechanoactivation. It was shown that in the combustion wave, parallel chemical reactions of Ti with C as well as Ti with Co and Ca 3 (PO 4 ) 2 occur, with a Ti-Co-based melt forming the reaction surface. Ceramic electrodes with different contents of Ag and Mg were synthesized by force self-propagating high-temperature synthesis (SHS)-pressing technology using the MA mixtures. The microstructure of the materials consisted of round-shaped grains of nonstoichiometric titanium carbide TiC x grains, intermetallic matrix (TiCo, TiCo 2 , CoTiP), inclusions of Ca and Mg oxides, and grains of the Ag-based solid solution. An increased content of Ag and Mg in the composition of the electrodes, as well as an increased MA duration, leads to an enlargement of the inclusions of the Ag-containing phase size and deterioration in the uniformity of their distribution.

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Comparative investigation of antibacterial yet biocompatible Ag-doped multicomponent coatings obtained by pulsed electrospark deposition and its combination with ion implantation

Zamulaeva

Sheveyko

Potanin

et al. 2018

Ceramics International

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Combustion synthesis of Ti-C-Co-Ca3(PO4)2-Ag-Mg electrodes and their utilization for pulsed electrospark deposition of bioactive coatings having an antibacterial effect

Cited by 7 publications

References 35 publications

TiCaPCON-Supported Pt- and Fe-Based Nanoparticles and Related Antibacterial Activity

TiCaPCON-Supported Pt- and Fe-Based Nanoparticles and Related Antibacterial Activity

Ceramic Materials in a Ti–C–Co–Ca3(PO4)2–Ag–Mg System Obtained by MA SHS for the Deposition of Biomedical Coatings

Comparative investigation of antibacterial yet biocompatible Ag-doped multicomponent coatings obtained by pulsed electrospark deposition and its combination with ion implantation

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