scholarly journals Molecular Recognition and Self-Organization in Life Phenomena Studied by a Statistical Mechanics of Molecular Liquids, the RISM/3D-RISM Theory

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 271
Author(s):  
Masatake Sugita ◽  
Itaru Onishi ◽  
Masayuki Irisa ◽  
Norio Yoshida ◽  
Fumio Hirata
Keyword(s):  
Molecular Recognition ◽  
Statistical Mechanics ◽  
Self Assembly ◽  
The Self ◽  
Self Organization ◽  
Molecular Processes ◽  
Molecular Liquids ◽  
Organization Process ◽  
Structural Fluctuation ◽  
Life Phenomena

There are two molecular processes that are essential for living bodies to maintain their life: the molecular recognition, and the self-organization or self-assembly. Binding of a substrate by an enzyme is an example of the molecular recognition, while the protein folding is a good example of the self-organization process. The two processes are further governed by the other two physicochemical processes: solvation and the structural fluctuation. In the present article, the studies concerning the two molecular processes carried out by Hirata and his coworkers, based on the statistical mechanics of molecular liquids or the RISM/3D-RISM theory, are reviewed.

scholarly journals INFLUENCE OF LIGHTING ON THE SELF-ORGANIZATION PROCESS IN CYSTEINE-SILVER SOLUTION

2021 ◽  
pp. 60-68
Author(s):  
Анна Нориковна Адамян ◽  
Александра Ивановна Иванова ◽  
Елена Михайловна Семенова ◽  
Максим Дмитриевич Малышев ◽  
Светлана Дмитриевна Хижняк ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Plasmon Resonance ◽  
Self Assembly ◽  
The Self ◽  
Self Organization ◽  
Assembly Process ◽  
Silver Acetate ◽  
Silver Solution ◽  
Organization Process

Комплексно исследовано влияние дневного освещения на процесс самоорганизации в цистеин-серебряном растворе (ЦСР) и гидрогелях на его основе. Установлено, что ЦСР на основе L-цистеина и ацетата серебра под действием освещения окрашивается сначала в желтый, а затем в коричневый цвет, что является следствием плазмонного резонанса на образующихся наночастицах серебра (НЧС) в ЦСР и гидрогелях. Предложена модель формирования НЧ в гидрогеле. The effect of daylight on the self-assembly process in cysteine-silver solution (CSS) and hydrogels based on it has been comprehensively studied. It was found that CSS based on L-cysteine and silver acetate under the action of illumination first turns yellow and then brown, which is a consequence of plasmon resonance on the resulting silver nanoparticles in CSS and hydrogels. A model for the formation of silver nanoparticles in a hydrogel is proposed.

scholarly journals Self-Organized Translational Wheeling Motion in Stochastic Self-Assembling Modules

2013 ◽  
Vol 19 (1) ◽  
pp. 79-95 ◽  
Author(s):  
Shuhei Miyashita ◽  
Kohei Nakajima ◽  
Zoltán Nagy ◽  
Rolf Pfeifer
Keyword(s):  
Self Assembly ◽  
Permanent Magnets ◽  
The Self ◽  
Self Organization ◽  
Shape Difference ◽  
Magnetic Attraction ◽  
Self Organized ◽  
Self Assembling ◽  
Organization Process ◽  
And Behavior

Self-organization is a phenomenon found in biomolecular self-assembly by which proteins are spontaneously driven to assemble and attain various functionalities. This study reports on self-organized behavior in which distributed centimeter-sized modules stochastically aggregate and exhibit a translational wheeling motion. The system consists of two types of centimeter-sized water-floating modules: a triangular-shaped module that is equipped with a vibration motor and a permanent magnet (termed the active module), which can quasi-randomly rove around; and circular modules that are equipped with permanent magnets (termed passive modules). In its quasi-random movement in water, the active module picks up passive modules through magnetic attraction. The contacts between the modules induce a torque transfer from the active module to the passive modules. This results in rotational motion of the passive modules. As a consequence of the shape difference between the triangular module and the circular module, the passive modules rotate like wheels, being kept on the same edges as the active module. The motion of the active module is examined, as well as the characteristics and behavior of the self-organization process.

scholarly journals Ferro-self-assembly: magnetic and electrochemical adaptation of a multiresponsive zwitterionic metalloamphiphile showing a shape-hysteresis effect

2021 ◽  
Vol 12 (1) ◽  
pp. 270-281
Author(s):  
Stefan Bitter ◽  
Moritz Schlötter ◽  
Markus Schilling ◽  
Marina Krumova ◽  
Sebastian Polarz ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Real Time ◽  
Self Assembly ◽  
Hysteresis Effect ◽  
The Self ◽  
Self Organization ◽  
Stimuli Responsive ◽  
Optical Birefringence

The self-organization properties of a stimuli responsive amphiphile can be altered by subjecting the paramagnetic oxidized form to a magnetic field of 0.8 T and monitored in real time by coupling optical birefringence with dynamic light scattering.

Guiding Self-Organization in Systems of Cooperative Mobile Agents

2011 ◽  
pp. 268-290
Author(s):  
Alejandro Rodríguez ◽  
Alexander Grushin ◽  
James A. Reggia
Keyword(s):  
Swarm Intelligence ◽  
Self Assembly ◽  
The Self ◽  
Self Organization ◽  
Assembly System ◽  
Global Behavior ◽  
System A ◽  
Collective Transport ◽  
Reactive Behavior ◽  
Different Levels

Drawing inspiration from social interactions in nature, swarm intelligence has presented a promising approach to the design of complex systems consisting of numerous, simple parts, to solve a wide variety of problems. Swarm intelligence systems involve highly parallel computations across space, based heavily on the emergence of global behavior through local interactions of components. This has a disadvantage as the desired behavior of a system becomes hard to predict or design. Here we describe how to provide greater control over swarm intelligence systems, and potentially more useful goal-oriented behavior, by introducing hierarchical controllers in the components. This allows each particle-like controller to extend its reactive behavior in a more goal-oriented style, while keeping the locality of the interactions. We present three systems designed using this approach: a competitive foraging system, a system for the collective transport and distribution of goods, and a self-assembly system capable of creating complex 3D structures. Our results show that it is possible to guide the self-organization process at different levels of the designated task, suggesting that self-organizing behavior may be extensible to support problem solving in various contexts.

Managing to Facilitate Cross-Sectoral Inter-Organizational Collaborations

2020 ◽  
Vol 10 (2) ◽  
pp. 13-41
Author(s):  
Yuki Kawabata
Keyword(s):  
Medical Technology ◽  
Initial Conditions ◽  
The Self ◽  
Management Theory ◽  
Self Organization ◽  
Comprehensive Management ◽  
Technology Industry ◽  
German States ◽  
Organization Process

The promotion of new and competitive industries through cross-sectoral inter-organizational collaborations are tackled in many regions globally. This study explores the management of facilitating collaboration with consideration of the planned approach to change based on change management theory. The “initial conditions,” “field,” and “emerging interaction toward the collaborations” are clarified as key elements for management through intervention. It is considered how these interventions are implemented on these elements. A conceptual model for considering comprehensive management of the self-organization process toward collaboration is proposed. In the case study, experiences of the medical technology industry of three German states are examined. The activities of cluster organizations of these states, which provide services to facilitate cross-sectoral collaborations, are scrutinized. The results of the case study are comparatively analyzed, and the modified conceptual framework is depicted by reflecting the findings of the study. The implications are then discussed.

A dual redox-responsive supramolecular amphiphile fabricated by selenium-containing pillar[6]arene-based molecular recognition

2018 ◽  
Vol 54 (91) ◽  
pp. 12856-12859 ◽  
Author(s):  
Yujuan Zhou ◽  
Kecheng Jie ◽  
Feihe Huang
Keyword(s):  
Molecular Recognition ◽  
Self Assembly ◽  
The Self ◽  
Redox Responsive ◽  
Assembly Behavior

A dual redox-responsive pillar[6]arene-based supramolecular amphiphile was fabricated in water. The self-assembly behavior of this supramolecular amphiphile in response to dual redox stimuli was investigated.

scholarly journals Self-Propulsion Enhances Polymerization

Entropy ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 251 ◽  
Author(s):  
Maximino Aldana ◽  
Miguel Fuentes-Cabrera ◽  
Martín Zumaya
Keyword(s):  
Nucleic Acids ◽  
Self Assembly ◽  
The Self ◽  
Biological Molecules ◽  
Bonding Energy ◽  
Self Organization ◽  
External Energy ◽  
Present Evidence ◽  
Spontaneous Process ◽  
Propulsion Force

Self-assembly is a spontaneous process through which macroscopic structures are formed from basic microscopic constituents (e.g., molecules or colloids). By contrast, the formation of large biological molecules inside the cell (such as proteins or nucleic acids) is a process more akin to self-organization than to self-assembly, as it requires a constant supply of external energy. Recent studies have tried to merge self-assembly with self-organization by analyzing the assembly of self-propelled (or active) colloid-like particles whose motion is driven by a permanent source of energy. Here we present evidence that points to the fact that self-propulsion considerably enhances the assembly of polymers: self-propelled molecules are found to assemble faster into polymer-like structures than non self-propelled ones. The average polymer length increases towards a maximum as the self-propulsion force increases. Beyond this maximum, the average polymer length decreases due to the competition between bonding energy and disruptive forces that result from collisions. The assembly of active molecules might have promoted the formation of large pre-biotic polymers that could be the precursors of the informational polymers we observe nowadays.

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