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Német N, Lawson HS, Holló G, Valletti N, Rossi F, Schuszter G, Lagzi I. Non-autonomous zinc-methylimidazole oscillator and the formation of layered precipitation structures in a hydrogel. Sci Rep 2023; 13:11029. [PMID: 37419884 PMCID: PMC10329012 DOI: 10.1038/s41598-023-37954-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/30/2023] [Indexed: 07/09/2023] Open
Abstract
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.
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Affiliation(s)
- Norbert Német
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary
| | - Hugh Shearer Lawson
- Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary
| | - Gábor Holló
- ELKH-BME Condensed Matter Research Group, Budapest University of Technology and Economics, Műegyetem Rkp. 3, Budapest, 1111, Hungary
| | - Nadia Valletti
- Department of Earth, Environmental and Physical Sciences, University of Siena, Pian Dei Mantellini 44, 53100, Siena, Italy
| | - Federico Rossi
- Department of Earth, Environmental and Physical Sciences, University of Siena, Pian Dei Mantellini 44, 53100, Siena, Italy
| | - Gábor Schuszter
- Department of Physical Chemistry and Materials Science, University of Szeged, Rerrich Béla Tér 1, Szeged, 6720, Hungary
| | - István Lagzi
- 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.
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Yuan L, Wang H, Meng C, Cheng Z, Lv X, Gao Q. Multiple iodide autocatalysis paths of chemo-hydrodynamical patterns in the Briggs-Rauscher reaction. Phys Chem Chem Phys 2023; 25:13183-13188. [PMID: 37129596 DOI: 10.1039/d3cp00011g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Autocatalytic feedback is often regarded as the core step for the chemo-hydrodynamical patterns in the nonlinear reaction system. The Briggs-Rauscher (BR) reaction shows sequential chemo-hydrodynamical patterns with three states, i.e. labyrinth, high iodine state, and rotating dendritic patterns. The short-lived labyrinth patterns, depending on [Mn2+]0, the ratio of [CH2(COOH)2]0 and [KIO3]0 and light intensities, result from iodide autocatalytic loop, which has three paths (involving Mn2+-induced radical reactions, the oxidation of iodomalonic compounds, and light-induced radical reactions, respectively). The high iodine state appears in a high ratio of [CH2(COOH)2]0 and [KIO3]0, relating to the autocatalytic path involving the oxidation of iodomalonic compounds. The light-induced radical autocatalytic path can act as a convenient control parameter to modulate the patterns in the first stage by increasing the iodine radicals. The dendritic patterns in the third stage result from the Marangoni effect caused by the evaporation of the solutions and reactions between H2O2 and iodine-containing species, which is independent of [CH2(COOH)2]0 and [Mn2+]0. This work contributes to a better understanding of the complex spatiotemporal patterns in the chemo-hydrodynamical system.
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Affiliation(s)
- Ling Yuan
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
| | - Hongzhang Wang
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
| | - Chunxiao Meng
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
| | - Zhenfang Cheng
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
| | - Xiaoli Lv
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
| | - Qingyu Gao
- School of Chemical Engineering, China University of Mining and Technology, Xuzhou 221116, P. R. China.
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Abstract
In this work, we describe the crazy-clock phenomenon involving the state I (low iodide and iodine concentration) to state II (high iodide and iodine concentration with new iodine phase) transition after a Briggs–Rauscher (BR) oscillatory process. While the BR crazy-clock phenomenon is known, this is the first time that crazy-clock behavior is linked and explained with the symmetry-breaking phenomenon, highlighting the entire process in a novel way. The presented phenomenon has been thoroughly investigated by running more than 60 experiments, and evaluated by using statistical cluster K-means analysis. The mixing rate, as well as the magnetic bar shape and dimensions, have a strong influence on the transition appearance. Although the transition for both mixing and no-mixing conditions are taking place completely randomly, by using statistical cluster analysis we obtain different numbers of clusters (showing the time-domains where the transition is more likely to occur). In the case of stirring, clusters are more compact and separated, revealed new hidden details regarding the chemical dynamics of nonlinear processes. The significance of the presented results is beyond oscillatory reaction kinetics since the described example belongs to the small class of chemical systems that shows intrinsic randomness in their response and it might be considered as a real example of a classical liquid random number generator.
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Lawson HS, Holló G, Német N, Teraji S, Nakanishi H, Horvath R, Lagzi I. Design of non-autonomous pH oscillators and the existence of chemical beat phenomenon in a neutralization reaction. Sci Rep 2021; 11:11011. [PMID: 34040025 PMCID: PMC8155044 DOI: 10.1038/s41598-021-90301-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 05/10/2021] [Indexed: 11/08/2022] Open
Abstract
The beat in physical systems is a transparent and well-understood phenomenon. It may occur in forced oscillatory systems and as a result of the interference of two waves of slightly different frequencies. However, in chemical systems, the realization of the latter type of the beat phenomenon has been lacking. Here we show that a periodic titration of acid and alkaline solutions with each other using programmable syringe pumps in a continuous stirred-tank reactor exhibits the beat phenomenon in the temporal pH oscillation pattern if the time periods of sinusoidal inflow rates of the reagents are slightly different. Interestingly, the frequency of the chemical beat pattern follows the well-known relationship from physics, namely the frequency of the beat is equal to the absolute value of the difference of the two wave frequencies. Based on our strategy, we can design and engineer non-autonomous pH oscillatory systems, in which the characteristics of the temporal oscillations (amplitude, time period) can easily and precisely be controlled by the experimental conditions such as the inflow rates and feed concentrations. The demonstrated phenomena can be exploited in practical applications, we use the non-autonomous pH oscillators to drive the reversible assembly and disassembly of pH-sensitive building blocks (oleic acid and gold nanoparticles), both highly relevant in nanotechnology and biomedical applications.
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Affiliation(s)
- Hugh Shearer Lawson
- Department of Physics, Budapest University of Technology and Economics, Budafoki út 8, Budapest, 1111, Hungary
| | - Gábor Holló
- MTA-BME Condensed Matter Physics Research Group, Budapest University of Technology and Economics, Budafoki út 8, Budapest, 1111, Hungary
| | - Norbert Német
- Department of Physics, Budapest University of Technology and Economics, Budafoki út 8, Budapest, 1111, Hungary
| | - Satoshi Teraji
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto, 606-8585, Japan
| | - Hideyuki Nakanishi
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto, 606-8585, Japan
| | - Robert Horvath
- Nanobiosensorics Group, Institute of Technical Physics and Materials Science, Centre for Energy Research, Konkoly Thege M. u. 29-33, Budapest, 1121, Hungary
| | - István Lagzi
- Department of Physics, Budapest University of Technology and Economics, Budafoki út 8, Budapest, 1111, Hungary.
- MTA-BME Condensed Matter Physics Research Group, Budapest University of Technology and Economics, Budafoki út 8, Budapest, 1111, Hungary.
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Dutt AK. Chloride Ion Inhibition, Stirring, and Temperature Effects in an Ethylacetoacetate Briggs-Rauscher Oscillator in Phosphoric and Hydrochloric Acids in a Batch Reactor. J Phys Chem B 2019; 123:3525-3534. [PMID: 30894000 DOI: 10.1021/acs.jpcb.9b01590] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Briggs-Rauscher oscillating reaction has been investigated in hydrochloric acid media and in the presence of added chloride ions in phosphoric acid media in a batch reactor using ethylacetoacetate as the organic substrate. The changes in key oscillation parameters, namely, induction period, oscillation period, amplitude, and so forth, have been explained in terms of the steps of the skeleton mechanism proposed by Furrow and Noyes and by de Kepper and Epstein. In spite of several shortcomings as outlined in section 2 in the text, the same mechanistic steps are good enough to explain qualitatively most of the changes in oscillation parameters under different stirring rates and temperatures in phosphoric acid and hydrochloric acid media, particularly stirring effects explained well by the theory of imperfect mixing. Potential data indicate that 0.018 M HCl medium has the ability to exhibit near-zero/zero amplitudes before cessation of oscillations. Inhibition reactions from a low Cl- concentration in the 0.018 M HCl media appear to be responsible for this interesting dynamical transformation, as toward the end of oscillations, the difference between [I-] and [I-]crit [see eq J in the text] becomes very small because of depleted component chemicals due to chemical reactions.
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Affiliation(s)
- Arun K Dutt
- Faculty of Applied Science , University of the West of England (Frenchay Campus) , Bristol BS16 1QY , U.K.,Chemical Physics Research Unit , 16 Ghanarajpur Jalapara , Dhaniakhali , Hooghly WB712302 , India
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Pribus M, Trnková L, Grančičová O, Olexová A. A Potentiometric Study of the Briggs-Rauscher Oscillatory Reaction in a Solution of Ionic Surfactants and Tetrabutylammonium Hydrogensulphate. ChemistrySelect 2018. [DOI: 10.1002/slct.201802373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marek Pribus
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences Comenius University; Ilovičova 6 842 15 Bratislava Slovakia
| | - Libuše Trnková
- Department of Chemistry Faculty of Sciences; Masaryk University; Kamenice 5 625 00 Brno Czech Republic
| | - Oľga Grančičová
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences Comenius University; Ilovičova 6 842 15 Bratislava Slovakia
| | - Anna Olexová
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences Comenius University; Ilovičova 6 842 15 Bratislava Slovakia
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Pribus M, Trnková L, Grančičová O, Olexová A. A Potentiometric Study of the Briggs-Rauscher Oscillatory Reaction in a Solution of Nonionic Surfactants andtert-Butanol. INT J CHEM KINET 2018. [DOI: 10.1002/kin.21174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Marek Pribus
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences; Comenius University 842 15 Bratislava Slovak Republic
| | - Libuše Trnková
- Department of Chemistry; Faculty of Science; Masaryk University Brno Czech Republic
| | - Ol'ga Grančičová
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences; Comenius University 842 15 Bratislava Slovak Republic
| | - Anna Olexová
- Department of Physical and Theoretical Chemistry; Faculty of Natural Sciences; Comenius University 842 15 Bratislava Slovak Republic
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Pagnacco MC, Maksimović JP, Potkonjak NI, Božić BĐ, Horváth AK. Transition from Low to High Iodide and Iodine Concentration States in the Briggs-Rauscher Reaction: Evidence on Crazy Clock Behavior. J Phys Chem A 2018; 122:482-491. [PMID: 29254335 DOI: 10.1021/acs.jpca.7b11774] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Briggs-Rauscher reaction containing malonic acid may undergo a sudden transition from low (state I) to high iodide and iodine (state II) concentration states after a well-defined and strongly reproducible oscillatory period. This study clearly shows that even though the time-dependent behavior of the oscillatory state is reproducible, the time lag necessary for the appearance of the state I to state II transition after the system leaves the oscillatory state becomes irreproducible for an individual kinetic run. This crazy clock behavior of the state I to state II transition is identified by repeated experiments in which stirring rate is taken as a control parameter and all other parameters such as initial conditions, temperature, vessel surface, and the age of solution were kept constant. Surprisingly, a better stirring condition does not make the transition reproducible; it simply does not allow the transition to happen at all. The proposed mechanism, additional explanations, and proposals for this irreproducibility of state I to state II transition have been presented. Considering the fact that the number of crazy clock reactions is only a few, this study may contribute to a better understanding of fundaments of this phenomenon.
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Affiliation(s)
- Maja C Pagnacco
- Faculty of Physical Chemistry, University of Belgrade , Studentski trg 12-16, P.O. Box 47, 11158 Belgrade, Serbia
| | - Jelena P Maksimović
- Faculty of Physical Chemistry, University of Belgrade , Studentski trg 12-16, P.O. Box 47, 11158 Belgrade, Serbia
| | - Nebojša I Potkonjak
- Chemical Dynamics Laboratory, Vinča Institute of Nuclear Sciences, University of Belgrade , P.O. Box 522, 11001 Belgrade, Serbia
| | - Bojan Đ Božić
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade , Studentski trg 16, 11000 Belgrade, Serbia
| | - Attila K Horváth
- Department of Inorganic Chemistry, University of Pécs , Ifjúság u. 6, H-7624 Pécs, Hungary
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Pagnacco MC, Maksimović JP, Janković BŽ. Analysis of transition from low to high iodide and iodine state in the Briggs–Rauscher oscillatory reaction containing malonic acid using Kolmogorov–Johnson–Mehl–Avrami (KJMA) theory. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1288-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Schmitz G, Bourceanu G, Ungureanu I. Effects of Ce(III) and Mn(II) on the Dushman reaction and simulations of the Briggs–Rausher reaction. REACTION KINETICS MECHANISMS AND CATALYSIS 2017. [DOI: 10.1007/s11144-017-1264-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Čupić Ž. Editorial. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-1029-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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