Relevant bibliographies by topics / Mechanochemical patterns

Academic literature on the topic 'Mechanochemical patterns'

Author: Grafiati
Published: 10 December 2022
Last updated: 28 January 2023

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Journal articles on the topic "Mechanochemical patterns"

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Liu, Aibo, and Changchun Liu. "ASYMPTOTIC DYNAMICS OF A NEW MECHANOCHEMICAL MODEL IN BIOLOGICAL PATTERNS." Mathematical Modelling and Analysis 22, no. 2 (March 18, 2017): 252–69. http://dx.doi.org/10.3846/13926292.2017.1292324.

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In this paper, we prove the existence of attractor for a new mechanochemical model with Neumann boundary conditions on a bounded domain of space dimension n ≤ 3. Based on the regularity estimates for the semigroups and the classical existence theorem of global attractors, we prove that the mechanochemical model possesses a global attractor and Hk attractor.
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Can, Musa Mutlu, Yeşim Akbaba, and Satoru Kaneko. "Synthesis of Iron Gallate (FeGa2O4) Nanoparticles by Mechanochemical Method." Coatings 12, no. 4 (March 22, 2022): 423. http://dx.doi.org/10.3390/coatings12040423.

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The study was focused on optimizing the procedure of synthesizing iron gallate (FeGa2O4) nanoparticles by mechanochemical techniques. Due to a lack of information in the literature about the sequence of synthesis procedures of FeGa2O4 structures, the study is based on the establishment of a recipe for FeGa2O4 synthesis using mechanochemical techniques. Rotation speed, grinding media, and milling durations were the optimized parameters. At the end of each step, the structure of the resulting samples was investigated using the X-ray diffraction (XRD) patterns of samples. At the end of the processes, the XRD patterns of the samples milled under an air atmosphere were coherent with the XRD pattern of the FeGa2O4 structure. XRD patterns were analyzed employing Rietveld refinements to determine lattice parameters under the assumption of an inverse spinel crystal formation. Furthermore, a fluctuation at band gap values in the range of 2.39 to 2.55 eV was realized and associated with the excess Fe atoms in the lattice, which settled as defects in the crystal structures.
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Recho, Pierre, Adrien Hallou, and Edouard Hannezo. "Theory of mechanochemical patterning in biphasic biological tissues." Proceedings of the National Academy of Sciences 116, no. 12 (February 28, 2019): 5344–49. http://dx.doi.org/10.1073/pnas.1813255116.

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The formation of self-organized patterns is key to the morphogenesis of multicellular organisms, although a comprehensive theory of biological pattern formation is still lacking. Here, we propose a minimal model combining tissue mechanics with morphogen turnover and transport to explore routes to patterning. Our active description couples morphogen reaction and diffusion, which impact cell differentiation and tissue mechanics, to a two-phase poroelastic rheology, where one tissue phase consists of a poroelastic cell network and the other one of a permeating extracellular fluid, which provides a feedback by actively transporting morphogens. While this model encompasses previous theories approximating tissues to inert monophasic media, such as Turing’s reaction–diffusion model, it overcomes some of their key limitations permitting pattern formation via any two-species biochemical kinetics due to mechanically induced cross-diffusion flows. Moreover, we describe a qualitatively different advection-driven Keller–Segel instability which allows for the formation of patterns with a single morphogen and whose fundamental mode pattern robustly scales with tissue size. We discuss the potential relevance of these findings for tissue morphogenesis.
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Ajmi, A., K. Karoui, K. Khirouni, and A. Ben Rhaiem. "Optical and dielectric properties of NaCoPO4 in the three phases α, β and γ." RSC Advances 9, no. 26 (2019): 14772–81. http://dx.doi.org/10.1039/c9ra01558b.

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In this work, we are interested in the synthesis of monophosphate α-NaCoPO4, β-NaCoPO4 and γ-NaCoPO4 compounds by mechanochemical method and their characterization by X-ray powder diffraction patterns.
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Dewers, T., and Peter Ortoleva. "Self-organization of mineralization patterns in metamorphic rocks through mechanochemical coupling." Journal of Physical Chemistry 93, no. 7 (April 1989): 2842–48. http://dx.doi.org/10.1021/j100344a028.

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Liu, Changchun, and Xiaoli Zhang. "Optimal distributed control for a new mechanochemical model in biological patterns." Journal of Mathematical Analysis and Applications 478, no. 2 (October 2019): 825–63. http://dx.doi.org/10.1016/j.jmaa.2019.05.057.

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Staddon, Michael F., Edwin M. Munro, and Shiladitya Banerjee. "Pulsatile contractions and pattern formation in excitable actomyosin cortex." PLOS Computational Biology 18, no. 3 (March 30, 2022): e1009981. http://dx.doi.org/10.1371/journal.pcbi.1009981.

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The actin cortex is an active adaptive material, embedded with complex regulatory networks that can sense, generate, and transmit mechanical forces. The cortex exhibits a wide range of dynamic behaviours, from generating pulsatory contractions and travelling waves to forming organised structures. Despite the progress in characterising the biochemical and mechanical components of the actin cortex, the emergent dynamics of this mechanochemical system is poorly understood. Here we develop a reaction-diffusion model for the RhoA signalling network, the upstream regulator for actomyosin assembly and contractility, coupled to an active actomyosin gel, to investigate how the interplay between chemical signalling and mechanical forces regulates stresses and patterns in the cortex. We demonstrate that mechanochemical feedback in the cortex acts to destabilise homogeneous states and robustly generate pulsatile contractions. By tuning active stress in the system, we show that the cortex can generate propagating contraction pulses, form network structures, or exhibit topological turbulence.
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Wu, Hao, Cheng Chen, Dan Yu Jiang, Tao Feng, and Qiang Li. "Mechanochemical Synthesis and Characteristics of Pb(Mg1/3Nb2/3)O3." Advanced Materials Research 177 (December 2010): 29–31. http://dx.doi.org/10.4028/www.scientific.net/amr.177.29.

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This paper presents a novel mechanochemical synthesis technique for making nano-structured Pb(Mg1/3Nb2/3)O3 (PMN) ferroelectric material without annealing treatment in a much shorter time and at much lower temperature than those reported in the literature, by using the starting precursors MgO, PbO, and Nb2O5. Specimens of various milling time (3-6h) are characterized from XRD patterns to track and analyze the synthesizing procedure of this mechanochemical processing route. The time used to make the desired PMN powders varies with different milling power. When the constituent oxides were mechanically activated at 1.8KW milling power for 6h, the perovskite phase PMN powder was obtained; while it was formed when milling at 3KW for only 3h. Typical SEM images of the as-received PMN powders show that the powders are aggregated of nano-particles of about 100nm in size.
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Noguchi, Hiroshi, and Naoki Tamemoto. "Nonequilibrium dynamics of a fluid vesicle: Turing patterns and traveling waves." Journal of Physics: Conference Series 2207, no. 1 (March 1, 2022): 012017. http://dx.doi.org/10.1088/1742-6596/2207/1/012017.

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Abstract In living cells, the shapes of biomembranes are dynamically regulated by proteins. We briefly review our recent studies on the membrane dynamics coupled with reaction-diffusion dynamics of curvature-inducing proteins. We simulated a vesicle in a fluid phase using a dynamically triangulated membrane model combined with a modified Brusselator model. The mechanochemical feedback of curvature-inducing proteins changes the condition of Turing patterns relative to those that occur on a non-deformable curved surface. Budding and multi-spindle shapes are also stabilized by Turing patterns. The speed of traveling waves increases or decreases with increasing local membrane curvature depending on the condition. Moreover, the reaction-diffusion waves can induce the self-oscillation of vesicle shapes.
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Baláž, Peter, Parviz Pourghahramani, Erika Dutková, Martin Fabián, Jaroslav Kováč, and Alexander Šatka. "PbS nanostructures synthesized via surfactant assisted mechanochemical route." Open Chemistry 7, no. 2 (June 1, 2009): 215–21. http://dx.doi.org/10.2478/s11532-009-0005-3.

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AbstractPbS nanocrystals using surfactant assisted mechanochemical route has been successfully prepared. The methods of XRD, SEM, surface area and particle size measurements were used for nanocrystals characterization. The XRD patterns confirmed the presence of galena PbS (JCPDS 5–592) whatever treatment conditions were applied. The strong observable peaks indicate the highly crystalline nature in formation of PbS nanostructures where preferential crystal growth in the (200) direction after chelating agent (EDTANa2•2H2O) addition has been observed. The mean volume weighted crystallite size 4.9 nm and 35 nm has been calculated from XRD data using Williamson-Hall method for PbS synthesized without and/or with chelating agent, respectively corresponding with surface weighted crystallites sizes of 2.9 and 18.8 nm. The sample prepared without surfactant yields the smaller crystallites and the higher microstrain compared with surfactant assisted synthesis. The obtained results illustrate a possibility to manipulate crystal morphology by combining effect of milling and surfactant application.
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Dissertations / Theses on the topic "Mechanochemical patterns"

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Malheiros, Marcelo de Gomensoro. "The mechanochemical basis of pattern formation." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/169104.

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Esta tese de doutorado descreve um novo modelo para o acoplamento de difusão química contínua e eventos celulares discretos dentro de um ambiente de simulação biologicamente inspirado. Nosso objetivo é definir e explorar um conjunto minimalista de recursos que também são expressivos, permitindo a criação de padrões 2D complexos usando apenas poucas regras. Por não nos restringirmos a uma grade estática ou regular, mostramos que muitos fenômenos diferentes podem ser simulados, como sistemas tradicionais de reação-difusão, autômatos celulares e padrões de pigmentação de seres vivos. Em particular, demonstramos que a adição de saturação química aumenta significativamente a gama de padrões simulados usando reação-difusão, incluindo padrões que não eram possíveis anteriormente. Nossos resultados sugerem um possível modelo universal que pode integrar abordagens de formação de padrões anteriores, fornecendo nova base para experimentação e texturas de aparência realista para uso geral em Computação Gráfica.
This doctoral thesis describes a novel model for coupling continuous chemical diffusion and discrete cellular events inside a biologically inspired simulation environment. Our goal is to define and explore a minimalist set of features that are also expressive, enabling the creation of complex 2D patterns using just a few rules. By not being constrained into a static or regular grid, we show that many different phenomena can be simulated, such as traditional reaction-diffusion systems, cellular automata, and pigmentation patterns from living beings. In particular, we demonstrate that adding chemical saturation increases significantly the range of simulated patterns using reaction-diffusion, including patterns not possible before. Our results suggest a possible universal model that can integrate previous pattern formation approaches, providing new ground for experimentation and realistic-looking textures for general use in Computer Graphics.
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Brinkmann, Felix [Verfasser], and Thomas [Akademischer Betreuer] Richter. "Mathematical models and numerical simulation of mechanochemical pattern formation in biological tissues / Felix Brinkmann ; Betreuer: Thomas Richter." Heidelberg : Universitätsbibliothek Heidelberg, 2020. http://d-nb.info/1210032619/34.

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Book chapters on the topic "Mechanochemical patterns"

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Romanovskii, Yu M., and V. A. Teplov. "Autowave Mechanochemical Model for Physarum Shuttle Streaming." In Thermodynamics and Pattern Formation in Biology, edited by Ingolf Lamprecht and A. I. Zotin, 395–414. Berlin, Boston: De Gruyter, 1988. http://dx.doi.org/10.1515/9783110848403-020.

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Bottino, Dean C. "Computer Simulations of Mechanochemical Coupling in a Deforming Domain: Applications to Cell Motion." In Mathematical Models for Biological Pattern Formation, 295–314. New York, NY: Springer New York, 2001. http://dx.doi.org/10.1007/978-1-4613-0133-2_13.

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Alonso, Sergio. "Onset of Mechanochemical Pattern Formation in Poroviscoelastic Models of Active Cytoplasm." In SEMA SIMAI Springer Series, 87–106. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16585-7_5.

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MURRAY, J. D., and P. K. MAINI. "Pattern formation mechanisms – a comparison of reaction-diffusion and mechanochemical models." In Cell to Cell Signalling, 159–70. Elsevier, 1989. http://dx.doi.org/10.1016/b978-0-12-287960-9.50019-8.

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Bois, Justin S., and Stephan W. Grill. "MECHANOCHEMICAL PATTERN FORMATION IN THE POLARIZATION OF THE ONE-CELL C. ELEGANS EMBRYO." In Engineering of Chemical Complexity, 201–12. WORLD SCIENTIFIC, 2012. http://dx.doi.org/10.1142/9789814390460_0010.

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Conference papers on the topic "Mechanochemical patterns"

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Baer, Markus, Marcus Hauser, Sergio Alonso, Markus Radszuweit, and Harald Engel. "Dynamics of Physarum Microdroplets – an Example for Mechanochemical Pattern Formation in Active Biological Matter." In 9th EAI International Conference on Bio-inspired Information and Communications Technologies (formerly BIONETICS). ACM, 2016. http://dx.doi.org/10.4108/eai.3-12-2015.2262398.

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