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

2021 ◽  
pp. 80-86
Author(s):  
Дмитрий Юрьевич Новоженин ◽  
Анна Нориковна Адамян ◽  
Софья Денисовна Прокофьева ◽  
Светлана Дмитриевна Хижняк ◽  
Павел Михайлович Пахомов
Keyword(s):  
Aqueous Solution ◽  
Silver Nitrate ◽  
Sodium Sulfate ◽  
Carboxymethyl Cellulose ◽  
Uv Spectroscopy ◽  
The Self ◽  
Self Organization ◽  
Silver Solution ◽  
Organization Process

Процессы самоорганизации в водном растворе L-цистеина, нитрата серебра, карбоксиметилцеллюлозы (КМЦ) и сульфата натрия исследованы с использованием методов вискозиметрии и УФ спектроскопии. Установлено, что водный раствор на основе L-цистеина и нитрата серебра (цистеин-серебряный раствор - ЦСР) хорошо совместим с водным раствором КМЦ, образуя при этом прозрачный гидрогель без введения электролита-инициатора. Рост концентрации КМЦ в растворе и дополнительное введение электролита (сульфат натрия) приводило к увеличению вязкости получаемых гидрогелей. Self-organization processes in an aqueous solution of L-cysteine, silver nitrate, carboxymethyl cellulose (CMC), and sodium sulfate were studied using viscometry and UV spectroscopy methods. It was found that an aqueous solution based on L-cysteine and silver nitrate (cysteine-silver solution - CSS) is well compatible with an aqueous solution of CMC, thus forming a transparent hydrogel without introducing an initiator electrolyte. An increase in the concentration of CMC in solution and an additional introduction of an electrolyte (sodium sulfate) led to an increase in the viscosity of the resulting hydrogels.

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 INFLUENCE OF POLIGUANIDINE ON THE SELF-ORGANIZATION PROCESS IN CYSTEINE-SILVER SOLUTION

2021 ◽  
pp. 69-79
Author(s):  
Анна Нориковна Адамян ◽  
Алена Константиновна Кучурова ◽  
Александра Ивановна Иванова ◽  
Максим Дмитриевич Малышев ◽  
Виктор Анатольевич Герасин ◽  
...  
Keyword(s):  
Guanidine Hydrochloride ◽  
Self Organization ◽  
Silver Acetate ◽  
High Antimicrobial Activity ◽  
Antibacterial Studies ◽  
Polyhexamethylene Guanidine ◽  
Silver Solution ◽  
Organization Process ◽  
Spatial Grid ◽  
Test Cultures

Выполнены реологические, структурные и антибактериальные исследования гидрогелей, получаемых на основе L-цистеина, ацетата серебра и полигексаметиленгуанидин гидрохлорида (ПГМГ-ГХ). Установлено, что водные растворы на основе L-цистеина и ацетата серебра хорошо смешиваются с водным раствором ПГМГ-ГХ, образуя прозрачные гидрогели. Предложена модель строения пространственной сетки геля. Показана высокая антимикробная активность гидрогеля по отношению к тест-культурам патогенных и условно-патогенных микроорганизмов. Rheological, structural, and antibacterial studies of hydrogels based on L-cysteine, silver acetate, and polyhexamethylene guanidine hydrochloride (PHMG-GC) have been carried out. It was found that aqueous solutions based on L-cysteine and silver acetate mix well with an aqueous solution of PHMG-GC, forming transparent hydrogels. A model of the structure of the spatial grid of the gel is proposed. High antimicrobial activity of the hydrogel was shown in relation to test cultures of pathogenic and opportunistic microorganisms.

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.

Self-Organization Processes in Aqueous Solution of Polyvinyl Alcohol, L-Cysteine, and Silver Nitrate

2019 ◽  
Vol 61 (1) ◽  
pp. 96-104 ◽  
Author(s):  
D. V. Vishnevetskii ◽  
A. N. Adamyan ◽  
V. S. Laguseva ◽  
A. I. Ivanova ◽  
S. D. Khizhnyak ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Polyvinyl Alcohol ◽  
Silver Nitrate ◽  
Self Organization

scholarly journals Self-organization in cold atomic gases: a synchronization perspective

2014 ◽  
Vol 372 (2027) ◽  
pp. 20140002 ◽  
Author(s):  
E. Tesio ◽  
G. R. M. Robb ◽  
G.-L. Oppo ◽  
P. M. Gomes ◽  
T. Ackemann ◽  
...  
Keyword(s):  
The Self ◽  
Kuramoto Model ◽  
Self Organization ◽  
Atomic Gases ◽  
Propagation Axis ◽  
Plane Transverse ◽  
Organization Process ◽  
Cold Atomic Gases ◽  
The Kuramoto Model ◽  
Fully Connected

We study non-equilibrium spatial self-organization in cold atomic gases, where long-range spatial order spontaneously emerges from fluctuations in the plane transverse to the propagation axis of a single optical beam. The self-organization process can be interpreted as a synchronization transition in a fully connected network of fictitious oscillators, and described in terms of the Kuramoto model.

Mechanistic Aspects of the Self-Organization Process for Oxide Nanotube Formation on Valve Metals

2007 ◽  
Vol 154 (9) ◽  
pp. C472 ◽  
Author(s):  
Kouji Yasuda ◽  
Jan M. Macak ◽  
Steffen Berger ◽  
Andrei Ghicov ◽  
Patrik Schmuki
Keyword(s):  
The Self ◽  
Self Organization ◽  
Organization Process ◽  
Valve Metals

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 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 THE PROCESS OF SELF-ORGANIZATION IN LOW-CONCENTRATED AQUEOUS SYSTEMS BASED ON N-ACETYL-L-CYSTEINE, L-CYSTEINE AND SILVER ACETATE

2020 ◽  
pp. 70-82
Author(s):  
Дмитрий Вадимович Аверкин ◽  
Дмитрий Викторович Вишневецкий ◽  
Владимир Романович Петров ◽  
Светлана Дмитриевна Хижняк ◽  
Павел Михайлович Пахомов
Keyword(s):  
Amino Acid ◽  
Self Assembly ◽  
Uv Spectroscopy ◽  
Self Organization ◽  
Amino Acid Residues ◽  
Silver Acetate ◽  
The Core ◽  
Organization Process ◽  
Silver Cations ◽  
Comprehensive Study

Проведено комплексное исследование процесса самоорганизации при сливании низкоконцентрированных водных растворов N-ацетил-L-цистеина и ацетата серебра. Все стадии самоорганизации изучены c помощью измерения величины рН, методов вискозиметрии, УФ спектроскопии и динамического светорассеяния (ДСР). Установлено, что началом самосборки является замена водорода в меркаптогруппе аминокислоты на катион серебра с образованием молекулы меркаптида серебра (МС). Далее происходит образование цепочек вида (-Ag-S(NCys)-Ag-S(NCys)-), при этом происходит протонирование аминокислотных остатков N-ацетил-L-цистеина. Предложен механизм самоорганизации в водном растворе N-ацетил-L-цистеина и ацетата серебра (N-ацетилцистеин-серебряный раствор - НАЦ), заключающийся в образовании агрегатов типа «ядро-оболочка». «Ядро» агрегатов состоит из цепочек вида (-Ag-S(NCys)-Ag-S(NCys)-), «оболочка» агрегатов состоит из протонированных аминокислотных остатков. Связывание таких агрегатов происходит посредством образования связей с ацетат-анионами. A comprehensive study of the self-organization process during the draining of low-concentration aqueous solutions of N-acetyl-L-cysteine and silver acetate was carried out. All stages of self-organization have been studied using pH measurements, viscometry, UV spectroscopy, and dynamic light scattering (DLS). It was found that the first stage of self-assembly is the replacement of hydrogen in the mercapto group of an amino acid with a silver cation with the formation of a silver mercaptide (MS) molecule. Further, the formation of chains of the form (-Ag-S(NCys)-Ag-S(NCys)-) occurs, while excess electron density is retained in amino acid residues, leading to the interaction of chains with both silver cations and undissociated silver acetate molecules , with the formation of clusters. The mechanism of self-organization of the system as the formation of the aggregates of the «core-shell» type is proposed. The «core» consists of chains of the form (-Ag-S(NCys)-Ag-S(NCys)-), the «shell» consists of protonated N-acetyl-L-cysteine resides. Further bonding of aggregates into clusters occurs through free acetic acid anions.

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