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Křenek T, Vála L, Medlín R, Pola J, Jandová V, Vavruňková V, Mikysek P, Bělský P, Koštejn M. A novel route of colloidal chemistry: room temperature reactive interactions between titanium monoxide and silicon monoxide sols produced by laser ablation in liquid resulting in the formation of titanium disilicide. Dalton Trans 2022; 51:13831-13847. [PMID: 36039852 DOI: 10.1039/d2dt02065c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In spite of advanced research on functional colloidal inorganic nanoparticles and their reactivity, room temperature reactive interactions between two different colloids have remained challenging so far. Laser ablation of titanium monoxide and silicon monoxide in ethanol and water allows the generation of TiO-derived and SiO-derived colloidal nanoparticles which were characterized for their stability, size distribution and zeta potentials with dynamic light scattering and after evaporation of solvent examined for their morphology, chemical and phase composition by scanning electron microscopy, Raman spectroscopy, high resolution transmission electron microscopy and electron diffraction and small angle X-ray scattering. Aqueous and ethanolic TiO-derived colloids consist of anatase and monoclinic TiO, while ethanolic SiO-derived colloids are composed of crystalline and amorphous Si, nanocrystalline Si and SiO2 and aqueous SiO-derived colloids contain, in addition to these phases, a high pressure form of cristobalite. Simple room temperature mixing of ethanolic TiO- and SiO-derived colloids allows the formation of TiSi2, which is a case of so far unreported room temperature reactive interactions between two colloidal species. All colloids absorb solar light and act as photocatalysts for methylene blue degradation. These findings present a challenge for further search for feasible room-temperature reactions between distinct colloidal particles and open the potential for green synthesis of other desirable and hardly achievable phases.
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Affiliation(s)
- Tomáš Křenek
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic.
| | - Lukáš Vála
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic.
| | - Rostislav Medlín
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic.
| | - Josef Pola
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic. .,Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02, Prague 6, Czech Republic
| | - Věra Jandová
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic. .,Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02, Prague 6, Czech Republic
| | - Veronika Vavruňková
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic.
| | - Petr Mikysek
- Institute of Geology of the Czech Academy of Sciences, Rozvojová 269, 165 00, Praha 6, Czech Republic
| | - Petr Bělský
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic.
| | - Martin Koštejn
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14, Pilsen, Czech Republic. .,Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02, Prague 6, Czech Republic
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Stich T, Alagboso F, Křenek T, Kovářík T, Alt V, Docheva D. Implant-bone-interface: Reviewing the impact of titanium surface modifications on osteogenic processes in vitro and in vivo. Bioeng Transl Med 2022; 7:e10239. [PMID: 35079626 PMCID: PMC8780039 DOI: 10.1002/btm2.10239] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/08/2021] [Accepted: 06/13/2021] [Indexed: 12/12/2022] Open
Abstract
Titanium is commonly and successfully used in dental and orthopedic implants. However, patients still have to face the risk of implant failure due to various reasons, such as implant loosening or infection. The risk of implant loosening can be countered by optimizing the osteointegration capacity of implant materials. Implant surface modifications for structuring, roughening and biological activation in favor for osteogenic differentiation have been vastly studied. A key factor for a successful stable long-term integration is the initial cellular response to the implant material. Hence, cell-material interactions, which are dependent on the surface parameters, need to be considered in the implant design. Therefore, this review starts with an introduction to the basics of cell-material interactions as well as common surface modification techniques. Afterwards, recent research on the impact of osteogenic processes in vitro and vivo provoked by various surface modifications is reviewed and discussed, in order to give an update on currently applied and developing implant modification techniques for enhancing osteointegration.
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Affiliation(s)
- Theresia Stich
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
| | - Francisca Alagboso
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
| | - Tomáš Křenek
- New Technologies Research CentreUniversity of West BohemiaPilsenCzech Republic
| | - Tomáš Kovářík
- New Technologies Research CentreUniversity of West BohemiaPilsenCzech Republic
| | - Volker Alt
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
- Clinic and Polyclinic for Trauma Surgery, University Regensburg Medical CentreRegensburgGermany
| | - Denitsa Docheva
- Experimental Trauma Surgery, Department of Trauma SurgeryUniversity Regensburg Medical CentreRegensburgGermany
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Křenek T, Vála L, Kovářík T, Medlín R, Fajgar R, Pola J, Jandová V, Vavruňková V, Pola M, Koštejn M. Novel perspectives of laser ablation in liquids: the formation of a high-pressure orthorhombic FeS phase and absorption of FeS-derived colloids on a porous surface for solar-light photocatalytic wastewater cleaning. Dalton Trans 2020; 49:13262-13275. [PMID: 32966468 DOI: 10.1039/d0dt01999b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A pulsed Nd : YAG laser ablation of FeS in water and ethanol produces FeS-derived colloidal nanoparticles that absorb onto immersed porous ceramic substrates and create solar-light photocatalytic surfaces. The stability, size distribution and zeta potential of the nanoparticles were assessed by dynamic light scattering. Raman, UV-Vis and XP spectroscopy and electron microscopy reveal that the sol nanoparticles have their outmost layer composed of ferrous and ferric sulphates and those produced in water are made of high-pressure orthorhombic FeS, cubic magnetite Fe3O4 and tetragonal maghemite γ-Fe2O3, while those formed in ethanol contain hexagonal FeS and cubic magnetite Fe3O4. Both colloids absorb solar light and their adsorption to porous ceramic surfaces creates functionalized ceramic surfaces that induce methylene blue degradation by daylight. The laser induced process thus offers an easy and efficient way for the functionalization of porous surfaces by photocatalytic nanoparticles that avoids aggregation in the liquid phase. The formation of an orthorhombic high-pressure FeS phase stable under ambient conditions is the first example of high-pressure structures produced by laser ablation in liquid without the assistance of an electric field.
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Affiliation(s)
- Tomáš Křenek
- New Technologies-Research Center, University of West Bohemia, Univerzitní 8, 306 14 Pilsen, Czech Republic.
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Deshmukh K, Kovářík T, Křenek T, Docheva D, Stich T, Pola J. Recent advances and future perspectives of sol–gel derived porous bioactive glasses: a review. RSC Adv 2020; 10:33782-33835. [PMID: 35519068 PMCID: PMC9056785 DOI: 10.1039/d0ra04287k] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 09/02/2020] [Indexed: 12/22/2022] Open
Abstract
Sol–gel derived bioactive glasses have been extensively explored as a promising and highly porous scaffold materials for bone tissue regeneration applications owing to their exceptional osteoconductivity, osteostimulation and degradation rates.
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Affiliation(s)
- Kalim Deshmukh
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Tomáš Kovářík
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Tomáš Křenek
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
| | - Denitsa Docheva
- Experimental Trauma Surgery
- Department of Trauma Surgery
- University Regensburg Medical Centre
- Regensburg
- Germany
| | - Theresia Stich
- Experimental Trauma Surgery
- Department of Trauma Surgery
- University Regensburg Medical Centre
- Regensburg
- Germany
| | - Josef Pola
- New Technologies – Research Center
- University of West Bohemia
- Plzeň
- Czech Republic
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Vála L, Medlín R, Koštejn M, Karatodorov S, Jandová V, Vavruňková V, Křenek T. Laser‐Induced Reactive Deposition of Nanostructured CoS
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‐ and Co
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CuS
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‐Based Films with Fenton Catalytic Properties. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201801403] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Lukáš Vála
- New Technologies ‐ Research Centre University of West Bohemia Univerzitni 8 306 14 Pilsen Czech Republic
| | - Rostislav Medlín
- New Technologies ‐ Research Centre University of West Bohemia Univerzitni 8 306 14 Pilsen Czech Republic
| | - Martin Koštejn
- Institute of Chemical Process Fundamentals Academy of Sciences of the Czech Republic Rozvojová 135 160 00 Prague Czech Republica
| | - Stefan Karatodorov
- Georgi Nadjakov Institute of Solid State Physics Bulgarian Academy of Sciences 72 Tzarigradsko Chaussee 1784 Sofia Bulgaria
| | - Věra Jandová
- Institute of Chemical Process Fundamentals Academy of Sciences of the Czech Republic Rozvojová 135 160 00 Prague Czech Republica
| | - Veronika Vavruňková
- New Technologies ‐ Research Centre University of West Bohemia Univerzitni 8 306 14 Pilsen Czech Republic
| | - Tomáš Křenek
- New Technologies ‐ Research Centre University of West Bohemia Univerzitni 8 306 14 Pilsen Czech Republic
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Abstract
The reactive deposition of laser ablated FeS1–xparticles on a room-temperature copper surface allows the formation of Cu sulfides.
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Affiliation(s)
- J. Pola
- Laboratory of Laser Chemistry
- Institute of Chemical Process Fundamentals of the ASCR
- 16502 Prague, Czech Republic
| | - M. Urbanová
- Laboratory of Laser Chemistry
- Institute of Chemical Process Fundamentals of the ASCR
- 16502 Prague, Czech Republic
| | - D. Pokorná
- Laboratory of Laser Chemistry
- Institute of Chemical Process Fundamentals of the ASCR
- 16502 Prague, Czech Republic
| | - P. Bezdička
- Institute of Inorganic Chemistry of the ASCR
- 25068 Husinec-Řež, Czech Republic
| | - J. Kupčík
- Institute of Inorganic Chemistry of the ASCR
- 25068 Husinec-Řež, Czech Republic
| | - T. Křenek
- Research Centre of New Technologies
- University of West Bohemia
- 30614 Plzeň, Czech Republic
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Křenek T, Murafa N, Bezdička P, Šubrt J, Masoudi HM, Pola J. IR laser-induced breakdown in tetramethyltin adjacent to Ag or Au: deposition of β-Sn nanograin-containing amorphous Au-Sn/C and Ag-Sn/C films. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Nataliya Murafa
- Institute of Inorganic Chemistry, ASCR; 25068 ; Husinec-Řež; Czech Republic
| | - Petr Bezdička
- Institute of Inorganic Chemistry, ASCR; 25068 ; Husinec-Řež; Czech Republic
| | - Jan Šubrt
- Institute of Inorganic Chemistry, ASCR; 25068 ; Husinec-Řež; Czech Republic
| | - Husain M. Masoudi
- Electrical Engineering and Physics Departments; King Fahd University of Petroleum and Minerals; 31261 ; Dhahran; Saudi Arabia
| | - Josef Pola
- Laboratory of Laser Chemistry; Institute of Chemical Process Fundamentals, ASCR; 16502 ; Prague; Czech Republic
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