scholarly journals Molecular Structuring of Novel Chiral Polymers via Cyclophane-based Monomer Design Strategies

2021 ◽  
Author(s):  
Henrik Tappert ◽  
Zengwen Li ◽  
Jasmin Seibert ◽  
Christoph Zippel ◽  
Zahid Hassan ◽  
...  
Keyword(s):  
Soft Matter ◽  
Research Work ◽  
Functional Polymers ◽  
Design Strategies ◽  
Precise Control ◽  
Chiral Polymers ◽  
New Class ◽  
Diverse Perspective

Structuring soft matter with precise control over molecular arrangements, nanoscale morphologies, especially aiming at functional polymers featuring chirality or helicity, responsiveness, and other features, has been a great research objective, which yet remains a challenging task. In this research work, we developed new design strategies for molecular structuring of an entirely new class of chiral polymers based on [2.2]paracyclophane derivatives. The grafting of tunable functional moieties onto [2.2]paracyclophane enables post-polymerization modification, where diverse perspective applications can be envisioned. In particular, chiral vinyl[2.2]paracyclophane and [2.2]paracyclophane-substituted diazoacetate give novel poly[2.2]paracyclophanylethenes and poly[2.2]paracyclophanylmethenes, respectively.

Ternary Γ-semihyperrings: Ideals and ideals extensions

2021 ◽  
pp. 2250010
Author(s):  
S. Ostadhadi-Dehkordi ◽  
B. Davvaz ◽  
M. Heidari
Keyword(s):  
Research Work ◽  
Prime Ideals ◽  
New Class

The aim of this research work is to define a new class of multi-algebras that is called ternary [Formula: see text]-semihyperrings as a generalization of [Formula: see text]-semihyperrings and semihyperrings. Then, we define and study the concepts of ideals, mutual ideals, spectrum ideals, strong prime ideals and ultra-prime ideals of them. Also, we define a topology on the set of strong prime ideals. Finally, we introduce the concept of ideal extensions and obtain some related results.

On some combinatorial aspects of transposition n-ary hypergroups

2014 ◽  
Vol 30 (1) ◽  
pp. 109-116
Author(s):  
S. MIRVAKILI ◽  
◽  
B. DAVVAZ ◽  
Keyword(s):  
Research Work ◽  
New Class

The aim of this research work is to define and characterize a new class of algebraic hyperstructures that we call weak transposition n-ary hypergroups. They are a generalization of transposition hypergroups, n-ary polygroups and join n-spaces. A subclass of weak transposition n-ary hypergroups is studied. Also, we prove that the class of weak transposition n-ary hypergroups with a unique scalar identity and the class of n-ary polygroups coincide.

scholarly journals STRUCTURAL EXPLORATION AND PHARMACOPHORIC INVESTIGATION OF PYRAZOLE BASED ANALOGS AS NOVEL HISTONE DEACETYLASE 1 INHIBITOR USING COMBINATORIAL STUDIES

2018 ◽  
Vol 10 (3) ◽  
pp. 90
Author(s):  
Avineesh Singh ◽  
Harish Rajak
Keyword(s):  
Molecular Docking ◽  
Histone Deacetylase ◽  
Histone Deacetylase Inhibitors ◽  
Research Work ◽  
3D Qsar ◽  
Qsar Model ◽  
Docking Studies ◽  
Inhibition Activity ◽  
Design Strategies ◽  
Histone Deacetylase 1

Objective: Histone deacetylase inhibitors (HDACi) have four essential pharmacophores as cap group, connecting unit, a linker moiety and zinc binding group for their anticancer and histone deacetylase (HDAC) inhibition activity. On the basis of this fact, the objective of this research was to evaluate the exact role of pyrazole nucleus as connecting unit and its role in the development of newer HDACi.Methods: Ligand and structure-based computer-aided drug design strategies such as pharmacophore and atom based 3D QSAR modelling, molecular docking and energetic based pharmacophore mapping have been frequently applied to design newer analogs in a precise manner. Herein, we have applied these combinatorial approaches to develop the structure-activity correlation among novel pyrazole-based derivatives.Results: the Pharmacophore-based 3D-QSAR model was developed employing Phase module and e-pharmacophore on compound 1. This 3D-QSAR model provides fruitful information regarding favourable and unfavourable substitution on pyrazole-based analogs for HDAC1 inhibition activity. Molecular docking studies indicated that all the pyrazole derivatives bind with HDAC1 proteins and showed critical hydrophobic interaction with 5ICN and 4BKX HDAC1 proteins.Conclusion: The outcome of the present research work clearly indicated that pyrazole nucleus added an essential hydrophobic feature in cap group and could be employed to design the ligand molecules more accurately.

Controlled Alignment of Nanowires for Transparent Conductive Films: Methods and Applications

2021 ◽  
Vol 17 ◽  
Author(s):  
Zheng Li ◽  
Ruo-Zhou Li ◽  
Jing Yan ◽  
Ying Yu ◽  
Yuming Fang
Keyword(s):  
Effective Means ◽  
Research Work ◽  
Organic Light Emitting Diodes ◽  
Multiple Perspectives ◽  
Light Emitting ◽  
Transparent Conductive Films ◽  
Precise Control ◽  
Conductive Films ◽  
Organic Light

Background: Nanowires (NWs) have received extensive attention as the candidate materials for transparent conductive films (TCFs) in recent years. To date, the aligned nanowire (NW)-based TCFs with the same arrangement direction have shown superior characteristics to their random counterparts in applications. Objective: To fully develop the potential of NW TCFs in devices and provide inspiration for the development of subsequent NW alignment processes, this review summarizes state-of-the-art alignment techniques and emphasizes their mechanisms in detail from multiple perspectives. Methods: According to the mechanism of NW alignment, this review divides these techniques into seven categories, i.e., the assisted assembly of fluid flow, meniscus, pressure, template, electromagnetic field, contact and strain, and analyzes the characteristics of these techniques. Moreover, by briefly enumerating the applications of aligned NW films in solar cells, organic light-emitting diodes, and touch screens, the superiority of aligned NW films over random NW films is also addressed. Results: Contact-assisted assembly exhibits the best arrangement effect, reaching a 98.6% alignment degree within ±1°. Under the same conditions, shorter NWs show better alignment in several cases. The combination of various assembly techniques is also an effective means to improve the alignment effect. Conclusion: There is still room for improvement in the precise control of NW position, density and orientation in a simple, efficient and compatible process. Therefore, follow-up research work is needed to conquer these problems. Moreover, a process that can realize NW alignment and film patterning simultaneously is also a desirable scheme for fabricating personalized devices.

Biodegradable Acoustic Proficiency in Sound Absorption Capacity After Water Treatment and Testing by Impendence Tube Method

2021 ◽  
pp. 75-90
Author(s):  
Tushar Kanta Mohapatra ◽  
Suchismita Satapathy ◽  
Isham Panigrahi ◽  
Debesh Mishra
Keyword(s):  
Composite Material ◽  
Sound Absorption ◽  
Research Work ◽  
Absorption Capacity ◽  
Sound Insulation ◽  
Biodegradable Materials ◽  
Acoustic Absorption ◽  
Fiber Reinforced Composite ◽  
New Class ◽  
Reinforced Composite

The present research investigation aims to fabricate a new class of fiber reinforced composite material by using biodegradable materials with epoxy as the strengthening agent. In order to explore the possibilities of using the new class of composite material in required application areas, the research work is carried out mainly in the field of the acoustic absorption properties of these bio fibers as an alternate building material. Also, the utilization of these materials as sound insulation will also provide a good solution to the waste management.

scholarly journals Electrochemiluminescent Detection of Hydrogen Peroxide via Some Luminol Imide Derivatives with Different Substituent Groups

2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Tifeng Jiao ◽  
Qinqin Huang ◽  
Yong Xiao ◽  
Xihai Shen ◽  
Jingxin Zhou ◽  
...  
Keyword(s):  
Experimental Data ◽  
Hydrogen Peroxide ◽  
Functional Groups ◽  
Soft Matter ◽  
Research Work ◽  
Molecular Structures ◽  
Applied Potential ◽  
Design And Development ◽  
Injection Volume ◽  
Potential Value

Some luminol imide derivatives with different substituent groups have been designed and synthesized. Their electrochemiluminescence properties have been measured with a view to developing new biosensors. The ECL response to hydrogen peroxide in the presence of these luminescent derivatives has been investigated taking into account crucial factors such as the applied potential value, injection volume of hydrogen peroxide, and the substituent groups in molecular structures. The experimental data demonstrated that the substituent groups in these imide derivatives can have a profound effect upon the ECL abilities of these studied compounds. The present research work affords new and useful exploration for the design and development of new soft matter for ECL biosensors with luminol functional groups.

scholarly journals Perspectives in active liquid crystals

2014 ◽  
Vol 372 (2029) ◽  
pp. 20130373 ◽  
Author(s):  
Apala Majumdar ◽  
Marchetti M. Cristina ◽  
Epifanio G. Virga
Keyword(s):  
Liquid Crystals ◽  
Spontaneous Activity ◽  
Soft Matter ◽  
Interested Reader ◽  
Theme Issue ◽  
New Class ◽  
Active Liquid ◽  
Potential Applications ◽  
Non Equilibrium

Active soft matter is a young, growing field, with potential applications to a wide variety of systems. This Theme Issue explores this emerging new field by highlighting active liquid crystals. The collected contributions bridge theory to experiment, mathematical theories of passive and active nematics, spontaneous flows to defect dynamics, microscopic to continuum levels of description, spontaneous activity to biological activation. While the perspectives offered here only span a small part of this rapidly evolving field, we trust that they might provide the interested reader with a taste for this new class of non-equilibrium systems and their rich behaviour.

scholarly journals The analysis of ways to ensure low emission (methane inclusive) from natural gas fuelled engines

2006 ◽  
Vol 125 (2) ◽  
pp. 58-66
Author(s):  
A. KHATCHIYAN ◽  
V. KUZNETSOV ◽  
I. SHISHLOV
Keyword(s):  
Natural Gas ◽  
Research Work ◽  
Supply System ◽  
Lean Mixture ◽  
Precise Control ◽  
Fuel Ratio ◽  
Low Emission ◽  
Partial Loads ◽  
Gas Supply

The results of research work on unsupercharged and turbocharged V-type engines with natural gas fuelling system have been presented in the paper. For lower emission the original gas supply system has been designed which ensures very proper control of air-fuel ratio in both cylinder banks. It was stated, that lowering the emission needs very precise control of gas-air ratio, application of lean mixture on partial loads, control of turbocharging and appropriate choice of converters with palladium catalytic coach.

New class of soft matter electrolytes obtained via heterogeneous doping: Percolation effects in “soggy sand” electrolytes

2006 ◽  
Vol 177 (26-32) ◽  
pp. 2565-2568 ◽  
Author(s):  
A BHATTACHARYYA ◽  
J MAIER ◽  
R BOCK ◽  
F LANGE
Keyword(s):  
Soft Matter ◽  
New Class ◽  
Heterogeneous Doping
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