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Pořízka P, Brunnbauer L, Porkert M, Rozman U, Marolt G, Holub D, Kizovský M, Benešová M, Samek O, Limbeck A, Kaiser J, Kalčíková G. Laser-based techniques: Novel tools for the identification and characterization of aged microplastics with developed biofilm. Chemosphere 2023; 313:137373. [PMID: 36435319 DOI: 10.1016/j.chemosphere.2022.137373] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 06/16/2023]
Abstract
Microplastics found in the environment are often covered with a biofilm, which makes their analysis difficult. Therefore, the biofilm is usually removed before analysis, which may affect the microplastic particles or lead to their loss during the procedure. In this work, we used laser-based analytical techniques and evaluated their performance in detecting, characterizing, and classifying pristine and aged microplastics with a developed biofilm. Five types of microplastics from different polymers were selected (polyamide, polyethylene, polyethylene terephthalate, polypropylene, and polyvinyl chloride) and aged under controlled conditions in freshwater and wastewater. The development of biofilm and the changes in the properties of the microplastic were evaluated. The pristine and aged microplastics were characterized by standard methods (e.g., optical and scanning electron microscopy, and Raman spectroscopy), and then laser-induced breakdown spectroscopy (LIBS) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) were used. The results show that LIBS could identify different types of plastics regardless of the ageing and major biotic elements of the biofilm layer. LA-ICP-MS showed a high sensitivity to metals, which can be used as markers for various plastics. In addition, LA-ICP-MS can be employed in studies to monitor the adsorption and desorption (leaching) of metals during the ageing of microplastics. The use of these laser-based analytical techniques was found to be beneficial in the study of environmentally relevant microplastics.
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Affiliation(s)
- Pavel Pořízka
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 61200, Brno, Czech Republic; Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 61669, Brno, Czech Republic
| | - Lukas Brunnbauer
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060, Vienna, Austria
| | - Michaela Porkert
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060, Vienna, Austria
| | - Ula Rozman
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, 1000, Ljubljana, Slovenia
| | - Gregor Marolt
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, 1000, Ljubljana, Slovenia
| | - Daniel Holub
- Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 61669, Brno, Czech Republic
| | - Martin Kizovský
- Institute of Scientific Instruments, Czech Academy of Sciences, Královopolská 147, 612 64, Brno, Czech Republic
| | - Markéta Benešová
- Institute of Scientific Instruments, Czech Academy of Sciences, Královopolská 147, 612 64, Brno, Czech Republic
| | - Ota Samek
- Institute of Scientific Instruments, Czech Academy of Sciences, Královopolská 147, 612 64, Brno, Czech Republic
| | - Andreas Limbeck
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060, Vienna, Austria
| | - Jozef Kaiser
- Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 61200, Brno, Czech Republic; Faculty of Mechanical Engineering, Brno University of Technology, Technická 2896/2, 61669, Brno, Czech Republic
| | - Gabriela Kalčíková
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot 113, 1000, Ljubljana, Slovenia.
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Pilát Z, Jonáš A, Pilátová J, Klementová T, Bernatová S, Šiler M, Maňka T, Kizovský M, Růžička F, Pantůček R, Neugebauer U, Samek O, Zemánek P. Analysis of Bacteriophage-Host Interaction by Raman Tweezers. Anal Chem 2020; 92:12304-12311. [PMID: 32815709 DOI: 10.1021/acs.analchem.0c01963] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Bacteriophages, or "phages" for short, are viruses that replicate in bacteria. The therapeutic and biotechnological potential of phages and their lytic enzymes is of interest for their ability to selectively destroy pathogenic bacteria, including antibiotic-resistant strains. Introduction of phage preparations into medicine, biotechnology, and food industry requires a thorough characterization of phage-host interaction on a molecular level. We employed Raman tweezers to analyze the phage-host interaction of Staphylococcus aureus strain FS159 with a virulent phage JK2 (=812K1/420) of the Myoviridae family and a temperate phage 80α of the Siphoviridae family. We analyzed the timeline of phage-induced molecular changes in infected host cells. We reliably detected the presence of replicating phages in bacterial cells within 5 min after infection. Our results lay the foundations for building a Raman-based diagnostic instrument capable of real-time, in vivo, in situ, nondestructive characterization of the phage-host relationship on the level of individual cells, which has the potential of importantly contributing to the development of phage therapy and enzybiotics.
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Affiliation(s)
- Zdeněk Pilát
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Alexandr Jonáš
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Jana Pilátová
- Department of Experimental Plant Biology, Faculty of Science, Charles University, Viničná 5, 128 44 Prague 2, Czech Republic
| | - Tereza Klementová
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Silvie Bernatová
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Martin Šiler
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Tadeáš Maňka
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Martin Kizovský
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Filip Růžička
- Department of Microbiology, Faculty of Medicine, Masaryk University and St. Anne's Faculty Hospital, Pekařská 53, 656 91 Brno, Czech Republic
| | - Roman Pantůček
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
| | - Ute Neugebauer
- Center for Sepsis Control and Care (CSCC), Jena University Hospital, Am Klinikum 1, D-07747 Jena, Germany.,Leibniz Institute of Photonic Technology (Leibniz-IPHT), Albert-Einstein-Str. 9, D-07745 Jena, Germany
| | - Ota Samek
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
| | - Pavel Zemánek
- Institute of Scientific Instruments of the Czech Academy of Sciences, v.v.i., Czech Academy of Sciences, Královopolská 147, 612 64 Brno, Czech Republic
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Pilát Z, Kizovský M, Ježek J, Krátký S, Sobota J, Šiler M, Samek O, Buryška T, Vaňáček P, Damborský J, Prokop Z, Zemánek P. Detection of Chloroalkanes by Surface-Enhanced Raman Spectroscopy in Microfluidic Chips. Sensors (Basel) 2018; 18:E3212. [PMID: 30249041 PMCID: PMC6210807 DOI: 10.3390/s18103212] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 09/18/2018] [Accepted: 09/21/2018] [Indexed: 01/12/2023]
Abstract
Optofluidics, a research discipline combining optics with microfluidics, currently aspires to revolutionize the analysis of biological and chemical samples, e.g., for medicine, pharmacology, or molecular biology. In order to detect low concentrations of analytes in water, we have developed an optofluidic device containing a nanostructured substrate for surface enhanced Raman spectroscopy (SERS). The geometry of the gold surface allows localized plasmon oscillations to give rise to the SERS effect, in which the Raman spectral lines are intensified by the interaction of the plasmonic field with the electrons in the molecular bonds. The SERS substrate was enclosed in a microfluidic system, which allowed transport and precise mixing of the analyzed fluids, while preventing contamination or abrasion of the highly sensitive substrate. To illustrate its practical use, we employed the device for quantitative detection of persistent environmental pollutant 1,2,3-trichloropropane in water in submillimolar concentrations. The developed sensor allows fast and simple quantification of halogenated compounds and it will contribute towards the environmental monitoring and enzymology experiments with engineered haloalkane dehalogenase enzymes.
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Affiliation(s)
- Zdeněk Pilát
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Martin Kizovský
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Jan Ježek
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Stanislav Krátký
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Jaroslav Sobota
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Martin Šiler
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Ota Samek
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
| | - Tomáš Buryška
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5/A13, 62500 Brno, Czech Republic.
| | - Pavel Vaňáček
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5/A13, 62500 Brno, Czech Republic.
| | - Jiří Damborský
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5/A13, 62500 Brno, Czech Republic.
| | - Zbyněk Prokop
- Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5/A13, 62500 Brno, Czech Republic.
| | - Pavel Zemánek
- Institute of Scientific Instruments of the CAS, v.v.i., Czech Academy of Sciences, Kralovopolska 147, 61264 Brno, Czech Republic.
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