TY - JOUR AU - Akbulut, Elif Sila AU - Holló, Gábor AU - Lagzi, István László AU - Baytekin, Bilge TI - Complex Patterning of Matter with Liesegang Patterns Propagating through Different Concentration Media─Gel Lenses for Liesegang Waves JF - CRYSTAL GROWTH & DESIGN J2 - CRYST GROWTH DES VL - 23 PY - 2023 IS - 12 SP - 8718 EP - 8725 PG - 8 SN - 1528-7483 DO - 10.1021/acs.cgd.3c00871 UR - https://m2.mtmt.hu/api/publication/34417514 ID - 34417514 N1 - Export Date: 22 December 2023 CODEN: CGDEF Correspondence Address: Lagzi, I.; ELKH-BME Condensed Matter Research Group, Hungary; email: lagzi.istvan.laszlo@ttk.bme.hu Correspondence Address: Baytekin, B.; Chemistry Department, Turkey; email: bbaytekin3@gmail.com Funding details: Nemzeti Kutatási Fejlesztési és Innovációs Hivatal, NKFI, K131425 Funding text 1: This work was supported by the National Research, Development and Innovation Office of Hungary (K131425), the Ministry of Culture and Innovation, and the National Research, Development and Innovation Office under grant Nr. TKP2021-EGA-02 and TÜBİTAK under award number 219Z263. AB - The patterns formed in natural biochemical and geochemical media are never spatially or geometrically homogeneous. On the other hand, the artificial systems trying to mimic nature are usually homogeneous and far from depicting the complexity of the natural ones. Liesegang patterns (LPs) are artificial reaction-diffusion precipitate patterns that can be formed in hydrogels. Although these patterns can be made to “sense” the environment, they are mostly formed in homogeneous media. Here, we present that a simple setting of different gel concentration boundaries can cause refractions of the pattern waves and changes in the band spacings. The extent of refraction is dependent on the macroscopic shape of the boundary. As imaged by scanning electron microscopy, the LP bands “crossing the boundaries” are formed by the product of a new morphology. This study can be a step forward in straightforwardly achieving complexity in artificial systems and developing new crystal forms of solids. © 2023 American Chemical Society. LA - English DB - MTMT ER - TY - JOUR AU - Itatani, Masaki AU - Holló, Gábor AU - Zámbó, Dániel AU - Nakanishi, Hideyuki AU - Deák, András AU - Lagzi, István László TI - Oppositely Charged Nanoparticles Precipitate Not Only at the Point of Overall Electroneutrality JF - JOURNAL OF PHYSICAL CHEMISTRY LETTERS J2 - J PHYS CHEM LETT VL - 14 PY - 2023 IS - 40 SP - 9003 EP - 9010 PG - 8 SN - 1948-7185 DO - 10.1021/acs.jpclett.3c01857 UR - https://m2.mtmt.hu/api/publication/34190845 ID - 34190845 LA - English DB - MTMT ER - TY - JOUR AU - Tootoonchian, Pedram AU - Kwiczak‐Yiğitbaşı, Joanna AU - Turab Ali Khan, Muhammad AU - Chalil Oglou, Ramadan AU - Holló, Gábor AU - Karadas, Ferdi AU - Lagzi, István László AU - Baytekin, Bilge TI - Cover Feature: A Dormant Reagent Reaction‐Diffusion Method for the Generation of Co‐Fe Prussian Blue Analogue Periodic Precipitate Particle Libraries (Chem. Eur. J. 48/2023) JF - CHEMISTRY-A EUROPEAN JOURNAL J2 - CHEM-EUR J VL - 29 PY - 2023 IS - 48 SN - 0947-6539 DO - 10.1002/chem.202302164 UR - https://m2.mtmt.hu/api/publication/34111629 ID - 34111629 LA - English DB - MTMT ER - TY - JOUR AU - Német, Norbert AU - Lawson, Hugh Shearer AU - Holló, Gábor AU - Valletti, Nadia AU - Rossi, Federico AU - Schuszter, Gábor AU - Lagzi, István László TI - Non-autonomous zinc–methylimidazole oscillator and the formation of layered precipitation structures in a hydrogel JF - SCIENTIFIC REPORTS J2 - SCI REP VL - 13 PY - 2023 IS - 1 PG - 7 SN - 2045-2322 DO - 10.1038/s41598-023-37954-9 UR - https://m2.mtmt.hu/api/publication/34051189 ID - 34051189 N1 - Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary Department of Earth, Environmental and Physical Sciences, University of Siena, Pian Dei Mantellini 44, Siena, 53100, Italy Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla Tér 1, Szeged, 6720, Hungary Export Date: 20 July 2023 Correspondence Address: Lagzi, I.; Department of Physics, Műegyetem Rkp. 3, Hungary; email: lagzi.istvan.laszlo@ttk.bme.hu AB - Oscillations are one of the intrinsic features of many animate and inanimate systems. The oscillations manifest in the temporal periodic change of one or several physical quantities describing the systems. In chemistry and biology, this physical quantity is the concentration of the chemical species. In most chemical oscillatory systems operating in batch or open reactors, the oscillations persist because of the sophisticated chemical reaction networks incorporating autocatalysis and negative feedback. However, similar oscillations can be generated by periodically changing the environment providing non-autonomous oscillatory systems. Here we present a new strategy for designing a non-autonomous chemical oscillatory system for the zinc–methylimidazole. The oscillations manifested in the periodic change of the turbidity utilizing the precipitation reaction between the zinc ions and 2-methylimidazole (2-met) followed by a partial dissolution of the formed precipitate due to a synergetic effect governed by the ratio of the 2-met in the system. Extending our idea spatiotemporally, we also show that these precipitation and dissolution phenomena can be utilized to create layered precipitation structures in a solid agarose hydrogel. LA - English DB - MTMT ER - TY - JOUR AU - Tootoonchian, P. AU - Kwiczak-Yiğitbaşı, J. AU - Turab, Ali Khan M. AU - Chalil, Oglou R. AU - Holló, Gábor AU - Karadas, F. AU - Lagzi, István László AU - Baytekin, B. TI - A Dormant Reagent Reaction-Diffusion Method for the Generation of Co-Fe Prussian Blue Analogue Periodic Precipitate Particle Libraries JF - CHEMISTRY-A EUROPEAN JOURNAL J2 - CHEM-EUR J VL - 29 PY - 2023 IS - 48 PG - 9 SN - 0947-6539 DO - 10.1002/chem.202301261 UR - https://m2.mtmt.hu/api/publication/34019354 ID - 34019354 N1 - Department of Chemistry, Bilkent University, Ankara, 06800, Turkey UNAM, Bilkent University, Ankara, 06800, Turkey ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Budapest, H-1111, Hungary Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Budapest, H-1111, Hungary Export Date: 15 June 2023 CODEN: CEUJE Correspondence Address: Baytekin, B.; Department of Chemistry, Turkey; email: bbaytekin3@gmail.com LA - English DB - MTMT ER - TY - JOUR AU - Dúzs, Brigitta AU - Holló, Gábor AU - Kitahata, Hiroyuki AU - Ginder, Elliott AU - Suematsu, Nobuhiko J. AU - Lagzi, István László AU - Szalai, István TI - Appearance and suppression of Turing patterns under a periodically forced feed JF - COMMUNICATIONS CHEMISTRY J2 - COMMUN CHEM VL - 6 PY - 2023 IS - 1 SN - 2399-3669 DO - 10.1038/s42004-022-00800-6 UR - https://m2.mtmt.hu/api/publication/33544961 ID - 33544961 N1 - Laboratory of Nonlinear Chemical Dynamics, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/A, Budapest, H-1117, Hungary ELKH-BME Condensed Matter Research Group, Műegyetem rkp. 3, Budapest, H-1111, Hungary Graduate School of Science, Chiba University, Yayoi-cho 1-33, Chiba, Inage-ku, 263-8522, Japan School of Interdisciplinary Mathematical Sciences, Graduate School of Advanced Mathematical Sciences, and Meiji Institute for Advanced Study of Mathematical Sciences (MIMS), Meiji University, 4-21-1, Nakano, Tokyo, 164-8525, Japan Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest, H-1111, Hungary University of Mainz, Duesbergweg 10-14, Mainz, 55128, Germany Export Date: 29 September 2023 Correspondence Address: Szalai, I.; Laboratory of Nonlinear Chemical Dynamics, Pázmány Péter stny. 1/A, Hungary; email: istvan.szalai@ttk.elte.hu Correspondence Address: Lagzi, I.; ELKH-BME Condensed Matter Research Group, Műegyetem rkp. 3, Hungary; email: lagzi.istvan.laszlo@ttk.bme.hu AB - Turing instability is a general and straightforward mechanism of pattern formation in reaction–diffusion systems, and its relevance has been demonstrated in different biological phenomena. Still, there are many open questions, especially on the robustness of the Turing mechanism. Robust patterns must survive some variation in the environmental conditions. Experiments on pattern formation using chemical systems have shown many reaction–diffusion patterns and serve as relatively simple test tools to study general aspects of these phenomena. Here, we present a study of sinusoidal variation of the input feed concentrations on chemical Turing patterns. Our experimental, numerical and theoretical analysis demonstrates that patterns may appear even at significant amplitude variation of the input feed concentrations. Furthermore, using time-dependent feeding opens a way to control pattern formation. The patterns settled at constant feed may disappear, or new patterns may appear from a homogeneous steady state due to the periodic forcing. LA - English DB - MTMT ER - TY - JOUR AU - Holló, Gábor AU - Zámbó, Dániel AU - Deák, András AU - Rossi, Federico AU - Cucciniello, Raffaele AU - Lo Nostro, Pierandrea AU - Nabika, Hideki AU - Baytekin, Bilge AU - Lagzi, István László AU - Itatani, Masaki TI - Effect of the Polarity of Solvents on Periodic Precipitation: Formation of Hierarchical Revert Liesegang Patterns JF - JOURNAL OF PHYSICAL CHEMISTRY B J2 - J PHYS CHEM B VL - 126 PY - 2022 IS - 41 SP - 8322 EP - 8330 PG - 9 SN - 1520-6106 DO - 10.1021/acs.jpcb.2c05810 UR - https://m2.mtmt.hu/api/publication/33176491 ID - 33176491 AB - Liesegang pattern (LP) is one example of self-organized periodic precipitation patterns in nonequilibrium systems. Several studies have demonstrated that the LP morphology can track physicochemical environmental conditions (e.g., temperature); however, the polarity effect has not been explored to date. In this study, a copper chromate system is used to reveal the impact of solvent polarity on the evolving LP structure using water/organic solvent mixtures. In the typical case of using water/dimethyl sulfoxide (DMSO) mixtures, two drastic changes in LP morphology with increasing DMSO contents were found: (i) increasing frequency of the original structure and (ii) formation of a hierarchical pattern with the appearance of another, lower-frequency structure. Furthermore, the simulation model operating with a bimodal size distribution, allowing both homogeneous and heterogeneous precipitations showed good agreement with the experimental results. Therefore, this study demonstrated that LP can be tailored by solvent polarity and can be used for designing hierarchical precipitation patterns in a straightforward manner. LA - English DB - MTMT ER - TY - JOUR AU - Miele, Ylenia AU - Holló, Gábor AU - Lagzi, István László AU - Rossi, Federico TI - Shape Deformation, Budding and Division of Giant Vesicles and Artificial Cells: A Review JF - LIFE-BASEL J2 - LIFE-BASEL VL - 12 PY - 2022 IS - 6 PG - 20 SN - 2075-1729 DO - 10.3390/life12060841 UR - https://m2.mtmt.hu/api/publication/32865884 ID - 32865884 N1 - Funding Agency and Grant Number: National Research, Development and Innovation Office of Hungary [K131425]; National Research, Development, and Innovation Fund of Hungary [TKP2021-EGA-02] Funding text: This research was funded by the National Research, Development and Innovation Office of Hungary, grant number K131425 and the National Research, Development, and Innovation Fund of Hungary under Grant TKP2021-EGA-02. LA - English DB - MTMT ER - TY - JOUR AU - Farkas, Szabolcs AU - Fonyi, Máté Sándor AU - Holló, Gábor AU - Német, Norbert AU - Valletti, Nadia AU - Kukovecz, Ákos AU - Schuszter, Gábor AU - Rossi, Federico AU - Lagzi, István László TI - Periodic Precipitation of Zeolitic Imidazolate Frameworks in a Gelled Medium JF - JOURNAL OF PHYSICAL CHEMISTRY C J2 - J PHYS CHEM C VL - 126 PY - 2022 IS - 22 SP - 9580 EP - 9586 PG - 7 SN - 1932-7447 DO - 10.1021/acs.jpcc.2c02371 UR - https://m2.mtmt.hu/api/publication/32841795 ID - 32841795 N1 - Funding Agency and Grant Number: National Research, Development and Innovation Office of Hungary [K131425, K138844]; National Research, Development, and Innovation Fund of Hungary [TKP2021-EGA-02] Funding text: This work was supported by the National Research, Development and Innovation Office of Hungary (K131425 and K138844) and the National Research, Development, and Innovation Fund of Hungary under Grant TKP2021-EGA-02. AB - Formation of spatially periodic patterns is a ubiquitous process in nature and man-made systems. Periodic precipitation is the oldest type of pattern formation, in which the formed colloid particles are self-assembled into a sequence of spatially separated precipitation zones in solid hydrogels. Chemical systems exhibiting periodic precipitation mostly comprise oppositely charged inorganic ions. Here, we present a new sub-group of this phenomenon driven by the diffusion and reaction of several transition metal cations (Zn2+, Co2+, Cd2+, Cu2+, Fe2+, Mn2+, and Ni2+) with an organic linker (2-methylimidazole) producing periodic precipitation of zeolitic imidazolate frameworks. In some cases, the formed crystals reached the size of ∼50 μm showing that a gel matrix can provide optimal conditions for nucleation and crystal growth. We investigated the effect of the gel concentration and solvent composition on the morphology of the pattern. To support the experimental observations, we developed a reaction–diffusion model, which qualitatively describes the spatially periodic pattern formation. LA - English DB - MTMT ER - TY - JOUR AU - Német, Norbert AU - Holló, Gábor AU - Schuszter, Gábor AU - Horváth, Dezső AU - Tóth, Ágota AU - Rossi, Federico AU - Lagzi, István László TI - Application of a chemical clock in material design: chemically programmed synthesis of zeolitic imidazole framework-8 JF - CHEMICAL COMMUNICATIONS J2 - CHEM COMMUN VL - 58 PY - 2022 IS - 38 SP - 5777 EP - 5780 PG - 4 SN - 1359-7345 DO - 10.1039/d2cc01139e UR - https://m2.mtmt.hu/api/publication/32812609 ID - 32812609 N1 - Funding Agency and Grant Number: National Research, Development and Innovation Office of HungaryNational Research, Development & Innovation Office (NRDIO) - Hungary [K131425, K138844]; National Research, Development, and Innovation Fund of Hungary [TKP2021-EGA-02] Funding text: The authors acknowledge the financial support of the National Research, Development and Innovation Office of Hungary (K131425 and K138844) and National Research, Development, and Innovation Fund of Hungary under Grant TKP2021-EGA-02. AB - Here we show a time-programmed and autonomous synthesis of zeolitic imidazole framework-8 (ZIF-8) using a methylene glycol-sulfite clock reaction. The induction period of the driving clock reaction, thus, the appearance of the ZIF-8 can be adjusted by the initial concentration of one reagent of the chemical clock. The autonomously synthesized ZIF-8 showed excellent morphology and crystallinity. LA - English DB - MTMT ER -