|
1
|
Grase L, Onufrijevs P, Rezevska D, Racenis K, Skadins I, Karosas J, Gecys P, Iesalnieks M, Pludons A, Kroica J, Raciukaitis G. Effect of Femtosecond Laser-Irradiated Titanium Plates on Enhanced Antibacterial Activity and Preservation of Bacteriophage Stability. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2032. [PMID: 37513043 PMCID: PMC10384951 DOI: 10.3390/nano13142032] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/03/2023] [Accepted: 07/07/2023] [Indexed: 07/30/2023]
Abstract
Titanium (Ti) is widely recognized for its exceptional properties and compatibility with medical applications. In our study, we successfully formed laser-induced periodic surface structures (LIPSS) on Ti plates with a periodicity of 520-740 nm and a height range of 150-250 nm. To investigate the morphology and chemical composition of these surfaces, we employed various techniques, including field emission scanning electron microscopy, energy dispersive X-ray spectroscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. Additionally, we utilized a drop-shape analyzer to determine the wetting properties of the surfaces. To evaluate the antibacterial activity, we followed the ISO 22196:2011 standard, utilizing reference bacterial cultures of Gram-positive Staphylococcus aureus (ATCC 25923) and Gram-negative Escherichia coli (ATCC 25922). The results revealed enhanced antibacterial properties against Staphylococcus aureus by more than 99% and Escherichia coli by more than 80% in comparison with non-irradiated Ti. Furthermore, we conducted experiments using the Escherichia coli bacteriophage T4 (ATCC 11303-B4) and the bacterial host Escherichia coli (ATCC 11303) to investigate the impact of Ti plates on the stability of the bacteriophage. Overall, our findings highlight the potential of LIPSS on Ti plates for achieving enhanced antibacterial activity against common bacterial strains while maintaining the stability of bacteriophages.
Collapse
Affiliation(s)
- Liga Grase
- Institute of Materials and Surface Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 7 Paula Valdena Street, LV-1048 Riga, Latvia
| | - Pavels Onufrijevs
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 7 Paula Valdena Street, LV-1048 Riga, Latvia
| | - Dace Rezevska
- Department of Biology and Microbiology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia
| | - Karlis Racenis
- Department of Biology and Microbiology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia
| | - Ingus Skadins
- Department of Biology and Microbiology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia
| | - Jonas Karosas
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania
| | - Paulius Gecys
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania
| | - Mairis Iesalnieks
- Institute of Materials and Surface Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 7 Paula Valdena Street, LV-1048 Riga, Latvia
| | - Arturs Pludons
- Institute of Materials and Surface Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, 7 Paula Valdena Street, LV-1048 Riga, Latvia
| | - Juta Kroica
- Department of Biology and Microbiology, Riga Stradins University, 16 Dzirciema Street, LV-1007 Riga, Latvia
| | - Gediminas Raciukaitis
- Department of Laser Technologies, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania
| |
Collapse
|
|
2
|
Costache F, Valette S, Bonse J. Special Issue "Dynamics and Processes at Laser-Irradiated Surfaces-A Themed Issue in Honor of the 70th Birthday of Professor Jürgen Reif". NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:611. [PMID: 36770572 PMCID: PMC9920410 DOI: 10.3390/nano13030611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
The Special Issue "Dynamics and Processes at Laser-irradiated Surfaces" is dedicated to the 70th birthday of Jürgen Reif, retired full professor, former Chair of Experimental Physics II of the Faculty of Physics of the Brandenburg University of Technology Cottbus-Senftenberg in Germany [...].
Collapse
Affiliation(s)
- Florenta Costache
- Fraunhofer Institute for Photonic Microsystems, IPMS, Maria-Reiche-Str. 2, 01109 Dresden, Germany
| | - Stéphane Valette
- Ecole Centrale de Lyon, LTDS, 36 Avenue Guy de Collongue, 69134 Ecully, France
| | - Jörn Bonse
- Bundesanstalt für Materialforschung und -prüfung (BAM), Unter den Eichen 87, 12205 Berlin, Germany
| |
Collapse
|