@article{MTMT:34536295, title = {Detection and characterization of mono- and bimetallic nanoparticles produced by electrical discharge plasma generators using laser-induced breakdown spectroscopy}, url = {https://m2.mtmt.hu/api/publication/34536295}, author = {Palásti, Dávid Jenő and Villy, Lajos Péter and Leits, B. and Kéri, Albert and Kohut, Attila and Bélteki, Ádám and Kajner, Gyula and Casian Plaza, Fernando Alexander and Kovács-Széles, Éva and Ajtai, Tibor and Veres, Miklós and Geretovszky, Zsolt and Galbács, Gábor}, doi = {10.1016/j.sab.2023.106804}, journal-iso = {SPECTROCHIM ACTA B}, journal = {SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY}, volume = {209}, unique-id = {34536295}, issn = {0584-8547}, year = {2023}, eissn = {1873-3565}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; Kohut, Attila/0000-0003-4545-2943; Geretovszky, Zsolt/0000-0002-7878-9174; Galbács, Gábor/0000-0002-1799-5329} } @article{MTMT:34131501, title = {Selenate triggers diverse oxidative responses in Astragalus species with diverse selenium tolerance and hyperaccumulation capacity}, url = {https://m2.mtmt.hu/api/publication/34131501}, author = {Szőllősi, Réka and Molnár, Árpád and Janovszky, Patrick Martin and Kéri, Albert and Galbács, Gábor and Dernovics, Mihály and Kolbert, Zsuzsanna}, doi = {10.1016/j.plaphy.2023.107976}, journal-iso = {PLANT PHYSIOL BIOCH (PPB)}, journal = {PLANT PHYSIOLOGY AND BIOCHEMISTRY}, volume = {202}, unique-id = {34131501}, issn = {0981-9428}, year = {2023}, eissn = {1873-2690}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; Galbács, Gábor/0000-0002-1799-5329; Dernovics, Mihály/0000-0002-7249-9328; Kolbert, Zsuzsanna/0000-0002-7819-4672} } @article{MTMT:34028055, title = {Quantitative elemental mapping of biological tissues by laser-induced breakdown spectroscopy using matrix recognition}, url = {https://m2.mtmt.hu/api/publication/34028055}, author = {Janovszky, Patrick Martin and Kéri, Albert and Palásti, Dávid Jenő and Brunnbauer, Lukas and Domoki, Ferenc and Limbeck, Andreas and Galbács, Gábor}, doi = {10.1038/s41598-023-37258-y}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {13}, unique-id = {34028055}, issn = {2045-2322}, abstract = {The present study demonstrates the importance of converting signal intensity maps of organic tissues collected by laser-induced breakdown spectroscopy (LIBS) to elemental concentration maps and also proposes a methodology based on machine learning for its execution. The proposed methodology employs matrix-matched external calibration supported by a pixel-by-pixel automatic matrix (tissue type) recognition performed by linear discriminant analysis of the spatially resolved LIBS hyperspectral data set. On a swine (porcine) brain sample, we successfully performed this matrix recognition with an accuracy of 98% for the grey and white matter and we converted a LIBS intensity map of a tissue sample to a correct concentration map for the elements Na, K and Mg. Found concentrations in the grey and white matter agreed the element concentrations published in the literature and our reference measurements. Our results revealed that the actual concentration distribution in tissues can be quite different from what is suggested by the LIBS signal intensity map, therefore this conversion is always suggested to be performed if an accurate concentration distribution is to be assessed.}, year = {2023}, eissn = {2045-2322}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; Domoki, Ferenc/0000-0002-5581-2167; Galbács, Gábor/0000-0002-1799-5329} } @article{MTMT:33208918, title = {Continuous spark plasma synthesis of Au/Co binary nanoparticles with tunable properties}, url = {https://m2.mtmt.hu/api/publication/33208918}, author = {Villy, Lajos Péter and Kohut, Attila and Kéri, Albert and Bélteki, Ádám and Radnóczi, György and Fogarassy, Zsolt and Radnóczi, György Zoltán and Galbács, Gábor and Geretovszky, Zsolt}, doi = {10.1038/s41598-022-22928-0}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {12}, unique-id = {33208918}, issn = {2045-2322}, abstract = {We present here a scalable and environmentally friendly gas phase technique employing atmospheric pressure electrical spark discharge plasmas for the production of Au/Co binaries, an effective catalyst system for the decomposition of hydrogen-rich compounds, such as ammonium borane. We demonstrate that Au/Co alloy nanoparticles can be produced via the spark plasma-based technique. The possibility of varying the morphology and phase structure via real time heat treatment of the generated aerosol to form Au/Co/CoO particles with continuous control over a wide particle compositional range (from 24 to 64 at.% [Co]/([Co] + [Au]) content) is also demonstrated. Since our spark-based approach is proven to be capable of providing reasonable particle yields, these results may contribute to the transition of lab-scale, nanocatalyst-based hydrogen storage systems to real world applications.}, year = {2022}, eissn = {2045-2322}, orcid-numbers = {Kohut, Attila/0000-0003-4545-2943; Kéri, Albert/0000-0001-7663-5422; Radnóczi, György/0000-0002-5056-7625; Fogarassy, Zsolt/0000-0003-4981-1237; Radnóczi, György Zoltán/0000-0002-7106-6272; Galbács, Gábor/0000-0002-1799-5329; Geretovszky, Zsolt/0000-0002-7878-9174} } @article{MTMT:32919211, title = {Multifunctional microfluidic chips for the single particle inductively coupled plasma mass spectrometry analysis of inorganic nanoparticles}, url = {https://m2.mtmt.hu/api/publication/32919211}, author = {Kajner, Gyula and Kéri, Albert and Bélteki, Ádám and Valkai, Sándor and Dér, András and Geretovszky, Zsolt and Galbács, Gábor}, doi = {10.1039/D2LC00377E}, journal-iso = {LAB CHIP}, journal = {LAB ON A CHIP}, volume = {22}, unique-id = {32919211}, issn = {1473-0197}, abstract = {This study aimed at exploiting the so far unexploited potential of carrying out on-line sample pretreatment steps on microfluidic chips for single particle inductively coupled plasma mass spectrometry (spICP-MS) measurements, and demonstrating their ability to practically facilitate most of the simpler tasks involved in the spICP-MS analysis of nanoparticles. For this purpose, polydimethylsiloxane microfluidic chips, capable of high-range dilution and sample injection were made by casting, using high-precision, 3D-printed molds. Optimization of their geometry and functions was done by running several hydrodynamic simulations and by gravimetric, fluorescence enhanced microscope imaging and solution-based ICP-MS experiments. On the optimized microfluidic chips, several experiments were done, demonstrating the benefits of the approach and these devices, such as the determination of nanoparticle concentration using only a few tens of microliters of sample, elimination of solute interferences by dilution, solution-based size calibration and characterisation of binary nanoparticles. Due to the unique design of the chips, they can be linked together to extend the dilution range of the system by more than a magnitude per chip. This feature was also demonstrated in applications requiring multiple-magnitude dilution rates, when two chips were sequentially coupled}, year = {2022}, eissn = {1473-0189}, pages = {2766-2776}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; Valkai, Sándor/0000-0001-8479-8141; Geretovszky, Zsolt/0000-0002-7878-9174; Galbács, Gábor/0000-0002-1799-5329} } @inproceedings{MTMT:33668123, title = {Breakdown spectroscopy}, url = {https://m2.mtmt.hu/api/publication/33668123}, author = {Casian Plaza, Fernando Alexander and Janovszky, Patrick Martin and Heszlerné Kopniczky, Judit and Kéri, Albert and M. Tóth, Tivadar and Galbács, Gábor}, booktitle = {Proceedings of the 27th International Symposium on Analytical and Environmental Problems}, unique-id = {33668123}, year = {2021}, pages = {128-133}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; M. Tóth, Tivadar/0000-0003-1012-1095; Galbács, Gábor/0000-0002-1799-5329} } @article{MTMT:32121906, title = {Nanoparticles in analytical laser and plasma spectroscopy - a review of recent developments in methodology and applications}, url = {https://m2.mtmt.hu/api/publication/32121906}, author = {Galbács, Gábor and Kéri, Albert and Kohut, Attila and Veres, Miklós and Geretovszky, Zsolt}, doi = {10.1039/d1ja00149c}, journal-iso = {J ANAL ATOM SPECTROM}, journal = {JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY}, volume = {36}, unique-id = {32121906}, issn = {0267-9477}, year = {2021}, eissn = {1364-5544}, pages = {1826-1872}, orcid-numbers = {Galbács, Gábor/0000-0002-1799-5329; Kéri, Albert/0000-0001-7663-5422; Kohut, Attila/0000-0003-4545-2943; Geretovszky, Zsolt/0000-0002-7878-9174} } @article{MTMT:31879425, title = {Full range tuning of the composition of Au/Ag binary nanoparticles by spark discharge generation}, url = {https://m2.mtmt.hu/api/publication/31879425}, author = {Kohut, Attila and Villy, Lajos Péter and Kéri, Albert and Bélteki, Ádám and Megyeri, Dániel and Hopp, Béla and Galbács, Gábor and Geretovszky, Zsolt}, doi = {10.1038/s41598-021-84392-6}, journal-iso = {SCI REP}, journal = {SCIENTIFIC REPORTS}, volume = {11}, unique-id = {31879425}, issn = {2045-2322}, year = {2021}, eissn = {2045-2322}, orcid-numbers = {Kohut, Attila/0000-0003-4545-2943; Kéri, Albert/0000-0001-7663-5422; Hopp, Béla/0000-0002-4272-7721; Galbács, Gábor/0000-0002-1799-5329; Geretovszky, Zsolt/0000-0002-7878-9174} } @article{MTMT:31791880, title = {Methodology and applications of elemental mapping by laser induced breakdown spectroscopy}, url = {https://m2.mtmt.hu/api/publication/31791880}, author = {Limbeck, A. and Brunnbauer, L. and Lohninger, H. and Pořízka, P. and Modlitbová, P. and Kaiser, J. and Janovszky, Patrick Martin and Kéri, Albert and Galbács, Gábor}, doi = {10.1016/j.aca.2020.12.054}, journal-iso = {ANAL CHIM ACTA}, journal = {ANALYTICA CHIMICA ACTA}, volume = {1147}, unique-id = {31791880}, issn = {0003-2670}, year = {2021}, eissn = {1873-4324}, pages = {72-98}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; Galbács, Gábor/0000-0002-1799-5329} } @inproceedings{MTMT:31877001, title = {On-line characterization of nanoparticles by single particle ICP-MS utilizing microfluidic devices}, url = {https://m2.mtmt.hu/api/publication/31877001}, author = {Kajner, Gyula and Kéri, Albert and Bélteki, Ádám and Valkai, Sándor and Dér, András and Geretovszky, Zsolt and Galbács, Gábor}, booktitle = {Proceedings of the 26th International Symposium on Analytical and Environmental Problems}, unique-id = {31877001}, year = {2020}, pages = {183-187}, orcid-numbers = {Kéri, Albert/0000-0001-7663-5422; Valkai, Sándor/0000-0001-8479-8141; Geretovszky, Zsolt/0000-0002-7878-9174; Galbács, Gábor/0000-0002-1799-5329} }