Theoretical Description for Orellanine Electrochemical Determination and Electropolymerization in the Presence of Hydroquinones, Assisted by CuS Nanoparticles

The theoretical description for orellanine electrochemical determination and electropolymerization, assisted by CuS nanoparticles, deposited over a graphene surface, is given. Taking into account the orellanine similarity to hydroquinonic compounds, alongside with their higher oxidation potential, copper sulfide nanoparticles, paired with copper (III) sulfohydroxide are used. Orellanine polymerization is also promoted, yielding a natural-based conducting polymer with interesting catalytical properties. The analysis of the correspondent mathematical model confirms the efficiency of the system. The linear dependence between the electrochemical parameter and concentration is easy to obtain and maintain. On the other hand, the oscillatory and monotonic instabilities in this system will be more probable than for hydroquinone compound determination.

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Theoretical Description for Chlorantraniliprole Electrochemical Determination, Assisted by Squaraine Dye Nano Ag2O2 Composite

Biointerface Research in Applied Chemistry ◽

10.33263/briac112.92789284 ◽

2020 ◽

Vol 11 (2) ◽

pp. 9278-9284

Keyword(s):

Mathematical Model ◽

Reaction Mechanism ◽

Bifurcation Analysis ◽

Electrochemical Determination ◽

Theoretical Description ◽

The Other ◽

Linear Stability Theory ◽

Oxide Nanoparticles ◽

Monotonic Instability ◽

Squaraine Dye

The theoretical description for the chlorantraniliprole electrochemical determination, assisted by the hybrid composite of squaraine dye with Ag2O2 nanoparticles, has been described. The correspondent reaction mechanism has been proposed, and the correspondent mathematical model has been developed and analyzed by means of linear stability theory and bifurcation analysis. It has been shown that the chlorantraniliprole electrochemical anodic determination on high potential may be efficiently provided by silver (I, III) oxide nanoparticles, stabilized by the squaraine dye. On the other hand, the oscillatory and monotonic instability is also possible, being caused by DEL influences of the electrochemical stage.

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Theoretical Description for Sucralose Cathodical Electrochemical Determination on the Conducting Polymer, Containing Pyridinic Nitrogen Atoms

Biointerface Research in Applied Chemistry ◽

10.33263/briac122.14991506 ◽

2021 ◽

Vol 12 (2) ◽

pp. 1499-1506

Keyword(s):

Mathematical Model ◽

Linear Stability ◽

Conducting Polymer ◽

Bifurcation Analysis ◽

Stability Theory ◽

Electrochemical Determination ◽

Theoretical Description ◽

Oscillatory Behavior ◽

Linear Stability Theory ◽

Pyridinic Nitrogen

A novel process for sucralose cathodically electrochemical determination has been suggested. In this process, the conducting polymer with pyridinic nitrogen atoms reacts specifically with sucralose, yielding a salt. This salt is thereby reduced gradually, yielding a less conducting macromolecule. The analysis of the correspondent mathematical model, realized through the linear stability theory and bifurcation analysis, shows that the oscillatory behavior is more probable to be realized due to charge changes and rearrangements during the electroanalytical process its influence on the surface and DEL conductivity. Nevertheless, this process may be efficient for the sucralose electrochemical determination.

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The theoretical description for the electrochemical determination of 4-4´-dihydroxyazobenzene, assisted by a composite of squaraine dye with cobalt (iii) oxyhydroxide in pair with cobalt (iv) oxide

Mediterranean Journal of Chemistry ◽

10.13171/mjc10602007011465vvt ◽

2020 ◽

Vol 10 (6) ◽

pp. 619

Author(s):

Volodymyr Valentynovych Tkach ◽

Marta V. Kushnir ◽

Oleksandra V. Ahafonova ◽

Mariia P. Mytchenok ◽

Andrii V. Bocharov ◽

...

Keyword(s):

Double Electric Layer ◽

Electrochemical Determination ◽

Theoretical Description ◽

The Other ◽

System A ◽

Diffusion Controlled ◽

Squaraine Dye ◽

Efficient Diffusion ◽

Biological Liquids

<p>The theoretical description for 4-4´-dihydroxyazobenzene CoO(OH) – assisted electrochemical determination in the mushroom pulp, food, and biological liquids has been described. In this system, a squaraine dye is used as a Cobalt(III)oxyhydroxide stabilizer and electron transfer mediator. It is shown that, contrary to the large part of the systems with cobalt (III) oxyhydroxide, this system will behave more stably, providing an efficient diffusion-controlled process. On the other hand, the oscillatory and monotonic instabilities, although possible, are caused by the double electric layer influences of either chemical or electrochemical stage.</p>

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The Theoretical Description for the Electrochemical Determination of Anti-COVID-19 Drug Umifenovir, Assisted by a Poly(squaraine dye-co-naphthoquinones) Composite with CoO(OH), Paired with CoO2

Letters in Applied NanoBioScience ◽

10.33263/lianbs101.19621968 ◽

2020 ◽

Vol 10 (1) ◽

pp. 1962-1968

Keyword(s):

Mathematical Model ◽

Bifurcation Analysis ◽

Double Electric Layer ◽

Electrochemical Determination ◽

Theoretical Description ◽

Oscillatory Behavior ◽

Linear Stability Theory ◽

Squaraine Dye ◽

First Time

For the first time, the system with anti-COVID19 drug umivenofir electrochemical determination, assisted by a Squaraine Dye – CoO(OH)/CoO2 composite, has been described theoretically. The mechanism contains hydrolysis, chemical, and electrochemical oxidation stages. The correspondent mathematical model has been developed and analyzed using linear stability theory and bifurcation analysis. Despite the branched character of the mechanism, the composite of Squaraine Dye with CoO(OH)/CoO2 may be an efficient electrode modifier for the umivenofir determination. However, the oscillatory behavior may be possible, but only because of double electric layer influences on the electrochemical stage.

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Theoretical Description for an Efficient Rhenium Electrocatalytical Recuperation by Polypyrrole Overoxidation

Letters in Applied NanoBioScience ◽

10.33263/lianbs103.23962401 ◽

2021 ◽

Vol 10 (3) ◽

pp. 2396-2401

Keyword(s):

Mathematical Model ◽

Linear Stability ◽

Bifurcation Analysis ◽

Stability Theory ◽

Theoretical Description ◽

Oscillatory Instability ◽

The Other ◽

Linear Stability Theory ◽

Other Hand

An interesting process for rhenium recuperation during the polypyrrole overoxidation has been theoretically described. The correspondent mathematical model has been developed and analyzed using linear stability theory and bifurcation analysis. The model's analysis confirms the possibility for the efficient rhenium ion capture by polypyrrole overoxidation, yielding a long-living electrocatalytic material. On the other hand, oscillatory instability is also possible in both stages.

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Theoretical Evaluation for the Function of Economical and Green Conducting Composite Material-based Chip for Jamaican Vomiting Sickness Diagnostics

Biointerface Research in Applied Chemistry ◽

10.33263/briac113.1031710324 ◽

2020 ◽

Vol 11 (3) ◽

pp. 10317-10324

Keyword(s):

Mathematical Model ◽

Composite Material ◽

Amino Acid ◽

Double Electric Layer ◽

Electrochemical Determination ◽

The Other ◽

Linear Stability Theory ◽

Theoretical Evaluation ◽

Efficient Manner ◽

Conducting Composite

A possibility of an economical and green conducting-polymer composite base chip for Jamaican vomiting sickness diagnostics by hypoglycin electrochemical determination has been evaluated. The correspondent mathematical model has been developed and analyzed by means of linear stability theory and bifurcation analysis. It has been detected that the chip is efficient for either reduced or semi-oxidized form determination in an efficient manner, so it may serve as a rapid hypoglycin intoxication diagnostics tool. On the other hand, as all of the correspondent components possess amino acid moieties, influencing the double electric layer ionic forces.

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Theoretical Description for Anti-COVID-19 Drug Remdesivir Electrochemical Determination, Assisted by Squaraine Dye–Ag2O2 Composite

Biointerface Research in Applied Chemistry ◽

10.33263/briac112.92019208 ◽

2020 ◽

Vol 11 (2) ◽

pp. 9201-9208

Keyword(s):

Mathematical Model ◽

Bifurcation Analysis ◽

Stability Theory ◽

Electrochemical Determination ◽

Theoretical Description ◽

Linear Stability Theory ◽

Anodic Process ◽

Squaraine Dye ◽

First Time ◽

Mathematical Model Analysis

For the first time, the remdesivir anti-COVID-19 drug electrochemical determination has been evaluated theoretically. In this work, an anodic process involving the Squaraine Dye – Ag2O2 composite has been evaluated. The mechanism of the electroanalytical process is branched, which implies relatively dynamic behavior. Nevertheless, the correspondent mathematical model analysis, made by linear stability theory and bifurcation analysis, confirms the composite electroanalytical efficiency as an electrode modifier.

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Batch Crystallization with Crystals Attrition

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19931855 ◽

1993 ◽

Vol 58 (8) ◽

pp. 1855-1860 ◽

Cited By ~ 1

Author(s):

Jaroslav Nývlt ◽

Stanislav Žáček

Keyword(s):

Mathematical Model ◽

Calcium Sulfate ◽

Crystal Size ◽

Theoretical Description ◽

Secondary Nucleation ◽

Batch Crystallization ◽

Batch Time ◽

The Mean

The dependence of the mean crystal size of the products from batch crystallizers on the batch time occasionally exhibits a maximum, which can be explained by secondary nucleation due to the attrition of crystals. A kinetic equatation of nucleation, comprising a term for crystal attrition, can be used for the theoretical description of such behaviour. A mathematical model of a batch crystallizer with crystal attrition has been verified on the calcium sulfate precipitation.

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Copper sulfide nano-globules reinforced electrodes for high-performance electrochemical determination of toxic pollutant hydroquinone

New Journal of Chemistry ◽

10.1039/d0nj05534d ◽

2021 ◽

Vol 45 (6) ◽

pp. 3215-3223

Author(s):

Selvarasu Maheshwaran ◽

Ramachandran Balaji ◽

Shen-Ming Chen ◽

Ray Biswadeep ◽

Vengudusamy Renganathan ◽

...

Keyword(s):

Copper Sulfide ◽

High Performance ◽

Electrochemical Determination ◽

Electrochemical Sensing ◽

Sensing Platform ◽

Toxic Pollutant

A high-performance electrochemical sensing platform based on CuS nano-globules is efficiently developed.

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The Numerical Analysis of the Velocity and Pressure Distribution of the Oil Film in Heavy Hydrostatic Thrust Bearing

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.541-542.658 ◽

2014 ◽

Vol 541-542 ◽

pp. 658-662

Author(s):

Jian Li ◽

Yuan Chen ◽

Yang Chun Yu ◽

Zhu Xin Tian ◽

Yu Huang

Keyword(s):

Mathematical Model ◽

Numerical Analysis ◽

Pressure Distribution ◽

Working Conditions ◽

Thrust Bearing ◽

Rotation Speed ◽

The Other ◽

Surface Load ◽

Oil Film ◽

Volume Method

To study the velocity and pressure distribution of the oil film in a heavy hydrostatic thrust bearing, a mathematical model of the velocity is proposed and the finite volume method (FVM) has been used to simulate the flow field under different working conditions. Some pressure experiments were carried out and the results verified the correctness of the simulation. It is concluded that the pressure distribution varies small under different rotation speed when the surface load on the workbench is constant. But the velocity of the oil film is influenced greatly by the rotation speed. When the rotation speed of the workbench is as quick as enough, the velocity of the oil film on one radial side of the pad will be zero, that is to say the lubrication oil will be drained from the other three sides of the recess.

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