Peer reviewed publications

2025

Szekeres, G. P., Jordan, J. S., Riedel, J., Horlebein, J., Prabhu, G. R. D., Götze, M., Daly, S., Warnke, S., Pagel, K. (2025) Cryogenic gas-phase IR spectroscopy on a commercial ion mobility-mass spectrometry platform, submitted

Riedel, J., Safferthal, M., Szekeres, G. P.*, Pagel, K.* (2025) Deconvolution of high-dimensional ion mobility data using reversible-jump Markov chain Monte Carlo, submitted

Österlund, N., Jordan, J. S., Renzi, E., Szekeres, G. P., Pagel, K. (2025), Mass spectrometry detects folding intermediates populated during urea-induced protein denaturation, Chemical Science, DOI: 10.1039/D5SC05773F Article

Medina, N., Peralta-Moreno, M., Rubio-Martínez, J., Bechtella, L., Polewski, L., Szekeres, G. P., Berdalet, E., Moyano, E., Pagel, K. (2025) Ion mobility–mass spectrometry of palytoxin-like compounds produced by Ostreopsis cf. ovata, Analytical and Bioanalytical Chemistry, accepted (Preprint)

Szekeres, G. P., Moon, E., Elter, J. K., Roper, B., Kizhakkedathu, J., Ballauff, M., Haag, R., Pagel, K. (2025) Glycosaminoglycans as Polyelectrolytes: Charge, Interaction, and Applications, ChemBioChem, DOI: 10.1002/cbic.202500418 Article

Horlebein, J., Moon, E., Szekeres, G. P., von Helden, G., Österlund, N., Pagel, K. (2025) Gas-phase purification enables structural studies of amyloid intermediates, Trends in Chemistry, DOI: 10.1016/j.trechm.2025.04.006 Article

2024

Szekeres, G. P., Dyer, D. P., Miller, R. L., Pagel, K. (2024) Chemokine oligomers and the impact of fondaparinux binding, Journal of the American Society for Mass Spectrometry, 35: 1550-1555. Article

Polewski, L., Moon, E., Zappe, A., Götze, M., Szekeres, G. P., Roth, C., Pagel, K. (2024) Ion mobility mass spectrometry-based disaccharide analysis of glycosaminoglycans, Chemistry – A European Journal, e202400783. Article

2023

Szekeres, G. P.*, Hanozin, E., Diehn, R., Horlebein, J., Polewski, L., Zappe, A., Lauster, D., Pagel, K. (2023) Heparin increases the antibiotic efficacy of colistin, Frontiers in Analytical Science, 3: 22. Article

Riedel, J., Lettow, M., Grabarics, M., Götze, M., Miller, R., Boons, G. J., Meijer, G., von Helden, G., Szekeres, G. P.*, Pagel, K.* (2023), Predicting structural motifs of glycosaminoglycans using cryogenic infrared spectroscopy and random forest, Journal of the American Chemical Society, 145: 7859-7868. Article

2022

Kneipp, J., Panne, U., Bartkowiak, D., Gkogkou, D., Heck, C., Lin, W., Neubert, T., Pavlenko, E., Querebillo, C. J. U., Rezania, B., Ries, M., Rodriguez Zancajo, V. M., Sarhan, R. M., Szekeres, G. P., Xing, Y., Yadav, A., Zhang, Z., Zivanovic, V. (2022), A new generation of Raman spectroscopists: Thinking diversity in the analytical sciences, Asian Journal of Physics, 31: 283-302. Article

Szekeres, G. P., Pagel, K., Heiner, Z. (2022), Analytical challenges of glycosaminoglycans at biological interfaces, Analytical and Bioanalytical Chemistry, 441: 85-93. Article

Szabó, A., Szekeres, G. P., Gyulavári, T., Tóth, Z. R., Pápa, Z., Szamosvölgyi, Á., Sápi, A., Kónya, Z., Hernadi, K. (2022), Systematic investigation of experimental parameters on nitrogen incorporation into carbon nanotube forests, Materials Research Bulletin, 148: 111676. Article

2021

Karlsson, R., Chopra, P., Joshi, A., Yang, Z., Vakhrushev, S. Y., Clausen, T. M., Painter, C. D., Szekeres, G. P., Chen, Y. H., Sandoval, D. R., Hansen, L., Esko, J. D., Pagel, K., Dyer, D. P., Turnbull, J. E., Clausen, H., Boons, G. J., Miller, R. L. (2021), A comprehensive method for compositional disaccharide analysis of heparin and heparan sulfate, Science Advances, 7: eabl6026. Article

Yan, H., Lockhauserbäumer, J., Szekeres, G. P., Mallagaray, A., Creutznacher, R., Taube, S., Peters, T., Pagel, K., Uetrecht, C. (2021), Protein secondary structure affects glycan clustering in native mass spectrometry, Life, 11: 554. Article

Szekeres, G. P., Krekic, S., Miller, R. L., Mero, M., Pagel, K., Heiner, Z. (2021), The interaction of chondroitin sulfate with a lipid monolayer observed by using nonlinear vibrational spectroscopy, Physical Chemistry Chemical Physics, 23: 13389-13395. Article

Spedalieri, C., Szekeres, G. P., Werner, S., Guttmann, P., Kneipp, J. (2021), Probing the intracellular bio-nano interface in different cell lines with gold nanostars, Nanomaterials, 11: 1183. Article

Nie, C., Pouyan, P., Lauster, D., Trimpert, J., Kerkhoff, Y., Szekeres, G. P., Wallert, M., Block, S., Sahoo, A. K., Dernedde, J., Pagel, K., Kaufer, B. B., Netz, R. R., Ballauff, M., Haag, R. (2021), Polysulfates block SARS-CoV-2 uptake via electrostatic interactions, Angewandte Chemie, 133: 2-12. Article

Nemeth, K., Szekeres, G. P., Fejes, D., Reti, B., Seo, J. W., Forró, L., Hernadi, K. (2021), Controlling the structure of carbon deposit by nitrogen doping catalytic chemical vapor deposition synthesis, Journal of Nanoscience and Nanotechnology, 21: 2413-2418. Article

Spedalieri, C., Szekeres, G. P., Werner, S., Guttmann, P., Kneipp, J. (2021), Intracellular optical probing with gold nanostars, Nanoscale, 13: 968-979. Article

2020

Szekeres, G. P. (2020), Structure and Composition of the Protein Corona in Animal Cells, Humboldt-Universität zu Berlin, Dissertation

Szekeres, G. P., Werner, S., Guttmann, P., Spedalieri, C., Drescher, D., Živanović, V., Montes-Bayón, M., Bettmer, J., Kneipp, J. (2020), Relating the composition and interface interactions in the hard corona of gold nanoparticles to the induced response mechanisms in living cells, Nanoscale, 12: 17450-17461. Article

Szekeres, G. P., Montes-Bayón, M., Bettmer, J., Kneipp, J. (2020), Fragmentation of proteins in the corona of gold nanoparticles as observed in live cell surface-enhanced Raman scattering, Analytical Chemistry, 92: 8553-8560. Article

Szekeres, G. P., Fernández-Iglesias, N., Kneipp, J., Montes-Bayón, M., Bettmer, J. (2020), Mass spectrometric approach for the analysis of the hard protein corona of nanoparticles in living cells, Journal of Proteomics, 212: 103582. Article

2019

Živanović, V., Seifert, S., Drescher, D., Schrade, P., Werner, S., Guttmann, P., Szekeres, G. P., Bachmann, S., Schneider,G., Arenz, C., Kneipp, J. (2019), Optical nanosensing of lipid accumulation due to enzyme inhibition in live cells, ACS Nano, 13: 9363-9375. Article

Szekeres, G. P., Kneipp, J. (2019), SERS probing of proteins in gold nanoparticle agglomerates, Frontiers in Chemistry, 7: 30. Article

Németh, Z., Szekeres, G. P., Schabikowski, M., Schrantz, K., Traber, J., Pronk, W., Hernadi, K., Graule, T. (2019), Enhanced virus filtration in hybrid membranes with MWCNT nanocomposite, Royal Society Open Science, 6: 181294. Article

2018

Szekeres, G. P., Kneipp, J. (2018), Different binding sites of serum albumins in the protein corona of gold nanoparticles, Analyst, 143: 6061-6068. Article

Szabó, T., Janovics, R., Túri, M., Futó, I., Papp, I., Braun, M., Németh, K., Szekeres, G. P., Kinka, A., Szabó, A., Hernádi, K., Hajdu, K., Nagy, L., Rinyu, L. (2018), Isotope analytical characterization of carbon-based nanocomposites, Radiocarbon, 60: 1101-1114. Article

Szekeres, G. P., Nemeth, Z., Schrantz, K., Nemeth, K., Schabikowski, M., Traber, J., Pronk, W., Hernadi, K., Graule, T. (2018), Copper-coated cellulose-based water filters for virus retention, ACS Omega, 3: 446-454. Article

Szekeres, G. P., Nemeth, Z., Schrantz, K., Hernadi, K., Graule, T. (2018) Insights into pore size control in cellulose nanopapers through modeling and experiments, Journal of Nanoscience and Nanotechnology, 18: 3000-3005. Article

2015

Szekeres, G. P., Nemeth, K., Kinka, A., Magyar, M., Reti, B., Varga, E., Szegletes, Zs., Erdohelyi, A., Nagy, L. and Hernadi, K. (2015), Segmental nitrogen doping and carboxyl functionalization of multi-walled carbon nanotubes, Physica Status Solidi b, 252: 2472–2478. Article

Conference presentations and abstracts

ANAKON 2025 (Leipzig, Germany) 10-13.03.2025, Szekeres, G. P., Horlebein, J., Riedel, J., von Helden, G., Pagel, K.: Cryogenic messenger-tagging infrared spectroscopy of mass- and mobility-selected glycans (oral presentation)

DGMS Conference 2025 (Göttingen, Germany) 04-07.03.2025, Riedel, J., Szekeres, G. P., Pagel, K.: Deconvolution of high-dimensional ion mobility data from first principles (poster)

DGMS Conference 2025 (Göttingen, Germany) 04-07.03.2025, Götze, M., Szekeres, G. P., Horlebein, J., Jordan, J., Prabhu, R. G., Riedel, J., von Helden, G., Pagel, K.: Advancing glycomics and beyond: cryogenic multiplexed IR spectroscopy coupled to ion mobility MS (oral presentation by Michael Götze)

ICORS 2024 (Rome, Italy) 28.07-02.08.2024, Szekeres, G. P., Horlebein, J., Riedel, J., von Helden, G., Pagel, K.: Experimental assignment of glycosaminoglycan vibrational bands (oral presentation)

IBBI 2024 (Timmendorfer Strand, Germany) 21-26.04.2024, Szekeres, G. P., Horlebein, J., von Helden, G., Pagel, K.: Cryogenic messenger-tagging infrared spectroscopy of mass- and mobility-selected glycans (oral presentation)

IBBI 2024 (Timmendorfer Strand, Germany) 21-26.04.2024, Horlebein, J., Riedel, J., Szekeres, G. P., Lettow, M., Mucha, E., Meijer, G., Pagel, K., von Helden, G.: Gas-phase IR spectroscopy of ion-mobility separated biomolecules (poster)

IBBI 2024 (Timmendorfer Strand, Germany) 21-26.04.2024, Riedel, J., Szekeres, G. P., Pagel, K.: Automated deconvolution of ion mobility data using reversible jump Markov chain Monte Carlo (poster)

ICAVS 2023 (Kraków, Poland), 27.08-01.09.2023, Szekeres, G. P., Horlebein, J., Riedel, J., von Helden, G., Mero, M., Pagel, K., Heiner, Z.: Exploring the glycosaminoglycan structure: does it fold and how? (oral presentation)

ICAVS 2023 (Kraków, Poland), 27.08-01.09.2023, Riedel, J., Lettow, M., Grabarics, M., Götze, M., Miller, R. L., Boons, G. J., Meijer, G., von Helden, G., Szekeres, G. P., Pagel, K.: Random forest classification of glycosaminoglycans based on cryogenic gas-phase infrared spectra (poster)

Bunsen-Tagung 2023 (Berlin, Germany), 05-07.06.2023, Szekeres, G. P., Horlebein, J., Riedel, J., Greis, K., von Helden, G., Heiner, Z., Pagel, K.: Gas-phase IR spectroscopy provides insights on glycosaminoglycan folding (poster)

Bunsen-Tagung 2023 (Berlin, Germany), 05-07.06.2023, Riedel, J., Lettow, M., Grabarics, M., Götze, M., Miller, R. L., Boons, G. J., Meijer, G., von Helden, G., Szekeres, G. P., Pagel, K.: Predicting structural motifs of glycosaminoglycans using cryogenic infrared spectroscopy and random forest (poster)

Bunsen-Tagung 2023 (Berlin, Germany), 05-07.06.2023, Horlebein, J., Riedel, J., Petzschmann, P., Lettow, M., Mucha, E., Szekeres, G. P., Meijer, G., Pagel, K., von Helden, G.: Gas-phase IR spectroscopy of ion-mobility separated biomolecules (poster)

ANAKON 2023 (Vienna, Austria), 11-14.04.2023, Szekeres, G. P., Horlebein, J., Riedel, J., Greis, K., von Helden, G., Heiner, Z., Pagel, K.: Gas-phase IR spectroscopy provides insights into stabilizing forces in glycosaminoglycan folding (poster)

ANAKON 2023 (Vienna, Austria), 11-14.04.2023, Riedel, J., Lettow, M., Götze, M., Miller, R. L., Boons, G. J., Meijer, G., von Helden, G., Szekeres, G. P., Pagel, K.: Predicting structural motifs of glycosaminoglycans using cryogenic infrared spectroscopy and Random Forest (poster)

ICORS 2022 (Long Beach, CA, USA), 14-19.08.2022, Szekeres, G. P., Krekic, S., Miller, R. L., Mero, M., Pagel, K., Heiner, Z.: Vibrational sum-frequency generation spectroscopy reveals glycosaminoglycan structure and its interaction with lipid membranes (oral presentation)

EuroFAST2022 (Nijmegen, The Neatherlands), 19-22.04.2022, Szekeres, G. P., Dyer, D. P., Struwe, W., Pagel, K., Miller, R. L.: Revealing the structure of chemokine-glycosaminoglycan complexes by native mass spectrometry (poster)

11^th International Conference on Advanced Vibrational Spectroscopy (Krakow, Poland – Online), 23-26.08.2021, Szekeres, G. P., Krekic, S., Miller, R. L., Mero, M., Pagel, K., Heiner, Z.: Phospholipid-glycosaminoglycan interactions observed by using vibrational sum-frequency generation spectroscopy (flash presentation)

11^th International Conference on Advanced Vibrational Spectroscopy (Krakow, Poland – Online), 23-26.08.2021, Spedalieri, C., Szekeres, G. P., Kneipp, J.: Understanding intracellular interactions of gold nanostars (flash presentation by Cecilia Spedalieri)

13^th EBSA Congress (Vienna, Austria), 24-28.07.2021, Spedalieri, C., Szekeres, G. P., Kneipp, J.: Vibrational spectroscopy and nanotomography reveal the intracellular interactions of gold nanostars (poster)

DGMS Young Scientists 1^st Digital Meeting (Online), 17-18.05.2021, Szekeres, G. P., Dyer, D. P., Struwe, W., Pagel, K., Miller, R.: Studying the structure and formation of chemokine-glycosaminoglycan complexes (oral presentation)

DNA Plasmonics 2021 (Jena, Germany – Online), 03.05.2021, Kneipp, J., Madzharova, F., Spedalieri, C., Živanović, V., Szekeres, G. P., Drescher, D., Heiner, Z., Zhang, Z.: One- and two-photon excited SERS for applications in bioanalysis and catalysis: An update (invited talk by Janina Kneipp)

Fiatal Analitikusok Előadóülése – Symposium of Young Analytical Scientists (Budapest, Hungary – Online), 27.11.2020, Szekeres, G. P., Montes-Bayón, M., Bettmer, J., Kneipp, J.: “A sejten belüli arany nanorészecskék fehérjekoronájának széleskörű analízise”/Comprehensive analysis of the protein corona of intracellular gold nanoparticles (oral presentation)

2020 Winter Conference on Plasma Spectrochemistry (Tucson, Arizona), 13-18.01.2020, Bettmer, J., Álvarez-Fernández García, R., Corte Rodríguez, M., Montes-Bayón, M., López-Chaves, C., Sánchez-González, C., Llopis, J., Szekeres, G. P., Kneipp, J.: Exploring nanomaterials in biological systems by ICP-MS and other analytical techniques (invited talk by Jörg Bettmer)

12^th Workshop FT-IR Spectroscopy in Microbiological and Medical Diagnostics (Berlin, Germany), 10-11.10.2019: Spedalieri, C., Szekeres, G. P., Drescher, D., Kneipp, J.: Biocompatible nanostructures for label-free SERS in living cells (poster)

XX. Euroanalysis (Istanbul, Turkey), 01-05.09.2019: Szekeres, G. P., Fernández-Iglesias, N., Kneipp, J., Bettmer, J., Montes-Bayón, M.: The protein corona composition sheds light on the fate of intracellular gold nanoparticles (oral presentation – Best Oral Presentation Award)

7^th International Symposium on Metallomics (Warsaw, Poland), 30.06-03.07.2019: Szekeres, G. P., Fernández-Iglesias, N., Kneipp, J., Bettmer, J., Montes-Bayón, M.: Mass spectrometric analysis of the hard protein corona on intracellular gold nanoparticles (poster – Metallomics Poster Prize)

Molecular Plasmonics (Jena, Germany), 23-25.05.2019: Szekeres, G. P., Bettmer, J., Montes-Bayón, M., Kneipp, J.: Insights into nanoparticle-protein interactions by SERS (poster)

SPIE Photonics West (San Diego, USA), 02-07.02.2019: Kneipp, J., Živanovic, V., Szekeres, G. P., Drescher, D.: Nano-bio interactions as characterized by surface-enhanced Raman scattering (invited talk by Janina Kneipp)

10^th Joint BER II and BESSY II User Meeting (Berlin, Germany), 05-07.12.2018: Drescher, D., Büchner, T., Živanović, V., Szekeres, G.P., Zeise, I., Guttmann, P., Werner, S., Schneider, G., Kneipp, J.: 3D nanoparticle organization in the cellular ultrastructure from cryo X-ray tomography (invited talk by Vesna Živanović)

EUCMOS 2018 (Coimbra, Portugal), 19-24.08.2018: Szekeres, G. P., Kneipp, J.: Identifying binding sequences of intact protein molecules on gold nanoparticles with surface-enhanced Raman scattering (poster)

BIT’s 7^th Annual World Congress of Nano Science and Nanotechnology (Fukuoka, Japan), 24-26.10.2017: Nemeth, Z.., Szekeres, G. P., Schabikowski, M., Schrantz, K., Traber, J., Wouter, P., Hernadi, K., Graule, T.: Development of novel nanocomposite membranes for virus removal in drinking water (invited talk by Zoltan Nemeth)

Molecular Plasmonics (Jena, Germany), 18-20.05.2017: Szekeres, G. P., Zivanovic, V., Drescher, D., Büchner, T., Kneipp, J.: Characterization of the protein corona formation of nanoparticles in artificial systems and living cells (poster)

MRS Fall Meeting (Boston, USA), 29.11-04.12.2015: Németh, Z., Szekeres, G. P., Schrantz, K., Hernádi, K., Graule, T.: Development of MWCNT based composite filters for virus removal from contaminated water (poster)

XXIX. IWEPNM (Kirchberg, Austria), 07-14.03.2015: Szekeres, G. P., Németh, K., Kinka, A., Magyar, M., Réti, B., Varga, E., Szegletes, Zs., Erdőhelyi, A., Nagy, L., Hernádi, K.: Controlled nitrogen doping and carboxyl functionalization of MWCNTs (poster)

Youth Conference of the University of Szeged (Szeged, Hungary), 20.11.2014: Szekeres, G. P.: “Szén nanocsövek időben kontrollált nitrogén dópolása és karboxil-funkcionalizálása”/Timecontrolled nitrogen doping and carboxyl functionalization of carbon nanotubes (oral presentation, 2^nd Place)

Youth Conference of the University of Szeged (Szeged, Hungary), 29.04.2014: Szekeres, G. P.: “Szén nanocsövek időben kontrollált nitrogén dópolása CVD módszer segítségével”/Time-controlled nitrogen doping of carbon nanotubes via CVD (oral presentation, 3^rd Place)

Kémiai Előadói Napok – Youth Conference in Chemistry (Szeged, Hungary), 28-30.10.2013: Szekeres, G. P.: “Szén nanorészecskék szolvotermális szintézise alacsony hőmérsékleten”/Low-temperature solvothermal synthesis of carbon nanoparticles (oral presentation)

Nano 2012 (Rhodes, Greece), 26-31.08.2012: Szekeres, G. P., Németh, K., Seo, J. W., Forró, L., Hernádi, K.: CVD synthesis of nitrogen-doped carbon nanoparticles using nitrogenous organic compounds (poster)