scholarly journals Current Progress in Cross-Linked Peptide Self-Assemblies

2020 ◽  
Vol 21 (20) ◽  
pp. 7577
Author(s):  
Noriyuki Uchida ◽  
Takahiro Muraoka
Keyword(s):  
Self Assembly ◽  
Three Dimensional ◽  
Chemical Properties ◽  
Water Soluble ◽  
Cross Linking ◽  
Physical And Chemical Properties ◽  
Cell Scaffold ◽  
Scaffold Materials ◽  
Physical And Chemical ◽  
And Chemical Properties

Peptide-based fibrous supramolecular assemblies represent an emerging class of biomaterials that can realize various bioactivities and structures. Recently, a variety of peptide fibers with attractive functions have been designed together with the discovery of many peptide-based self-assembly units. Cross-linking of the peptide fibers is a key strategy to improve the functions of these materials. The cross-linking of peptide fibers forming three-dimensional networks in a dispersion can lead to changes in physical and chemical properties. Hydrogelation is a typical change caused by cross-linking, which makes it applicable to biomaterials such as cell scaffold materials. Cross-linking methods, which have been conventionally developed using water-soluble covalent polymers, are also useful in supramolecular peptide fibers. In the case of peptide fibers, unique cross-linking strategies can be designed by taking advantage of the functions of amino acids. This review focuses on the current progress in the design of cross-linked peptide fibers and their applications.

On eccentricity-based topological descriptors of water-soluble dendrimers

2018 ◽  
Vol 74 (1-2) ◽  
pp. 25-33 ◽  
Author(s):  
Zahid Iqbal ◽  
Muhammad Ishaq ◽  
Adnan Aslam ◽  
Wei Gao
Keyword(s):  
Molecular Structure ◽  
Chemical Properties ◽  
Topological Indices ◽  
Water Soluble ◽  
Connectivity Index ◽  
Topological Descriptors ◽  
Physical And Chemical Properties ◽  
Eccentric Connectivity Index ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractPrevious studies show that certain physical and chemical properties of chemical compounds are closely related with their molecular structure. As a theoretical basis, it provides a new way of thinking by analyzing the molecular structure of the compounds to understand their physical and chemical properties. The molecular topological indices are numerical invariants of a molecular graph and are useful to predict their bioactivity. Among these topological indices, the eccentric-connectivity index has a prominent place, because of its high degree of predictability of pharmaceutical properties. In this article, we compute the closed formulae of eccentric-connectivity–based indices and its corresponding polynomial for water-soluble perylenediimides-cored polyglycerol dendrimers. Furthermore, the edge version of eccentric-connectivity index for a new class of dendrimers is determined. The conclusions we obtained in this article illustrate the promising application prospects in the field of bioinformatics and nanomaterial engineering.

scholarly journals Changes in physical and chemical properties of niosome membrane induced by cholesterol: a promising approach for niosome bilayer intervention

RSC Advances ◽  
2017 ◽  
Vol 7 (78) ◽  
pp. 49463-49472 ◽  
Author(s):  
Mohammad Hadi Nematollahi ◽  
Abbas Pardakhty ◽  
Masoud Torkzadeh-Mahanai ◽  
Mehrnaz Mehrabani ◽  
Gholamreza Asadikaram
Keyword(s):  
Self Assembly ◽  
Nonionic Surfactants ◽  
Chemical Properties ◽  
The Self ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

Recently, the self-assembly property of nonionic surfactants has been utilized to create vesicles as alternatives to liposomes.

WILDIERS' BIOS AND THE LACTIC ACID BACTERIA: THE RELATION OF BIOS TO THE WATER-SOLUBLE B-VITAMINS

1938 ◽  
Vol 16b (2) ◽  
pp. 46-53 ◽  
Author(s):  
Blythe Alfred Eagles ◽  
Olga Okulitch ◽  
Arthur Stephen Kadzielawa
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Chemical Properties ◽  
Water Soluble ◽  
Vitamin B ◽  
Physical And Chemical Properties ◽  
Heat Stable ◽  
Physical And Chemical ◽  
Growth Of Animals ◽  
And Chemical Properties

The influence of three distinct activators prepared from tomatoes, yeast, or liver, on the metabolism of two species of lactic acid bacteria has been studied. One of these activators is Bios II A, and the other two have been shown to be components constituting Bios II B. On the basis of their physical and chemical properties, it is suggested that the growth stimulants required by the lactic acid bacteria are identical with certain of the heat-stable accessory food factors of the Vitamin-B complex essential for the growth of animals.

scholarly journals THE STUDY OF PHYSICAL AND CHEMICAL PROPERTIES OF WATER-SOLUBLE POLYMER REAGENTS AND THEIR COMPATIBILITY WITH ANTIBIOTICS

2020 ◽  
Vol 13 (03) ◽  
pp. 1417-1423
Author(s):  
Erzhan Dzhakipbekov ◽  
Saule Sakibayeva ◽  
Nagima Dzhakipbekova ◽  
Botagoz Tarlanova ◽  
Guzaliya Sagitova ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Water Soluble ◽  
Physical And Chemical Properties ◽  
Soluble Polymer ◽  
Water Soluble Polymer ◽  
Physical And Chemical ◽  
And Chemical Properties

Synthesis and properties of benzocyclobutene-terminated imide-containing cyano group

2019 ◽  
Vol 31 (9-10) ◽  
pp. 1062-1074
Author(s):  
Xianfeng Que ◽  
Zhiming Qiu ◽  
Yurong Yan
Keyword(s):  
Coefficient Of Thermal Expansion ◽  
Cyano Group ◽  
Chemical Properties ◽  
Curing Temperature ◽  
Cross Linking ◽  
Physical And Chemical Properties ◽  
High Glass Transition Temperature ◽  
Imide Group ◽  
Physical And Chemical ◽  
And Chemical Properties

Benzocyclobutene (BCB) resins have aroused much interest because of their excellent physical and chemical properties. Unfortunately the temperature required to induce cross-linking in typical BCBs is higher than 250°C, which restricts their applications. In this study, a novel cyano-containing BCB-terminated imide monomer was synthesized through the reaction of 1-cyano-5-amino-benzocyclobutene with 4,4′-oxydiphthalic anhydride. This monomer allows a 50–100°C lower curing temperature in comparison with typical BCBs, and it is highly soluble in various solvents and can easily convert to cured film at 150–200°C. Because of the presence of rigid imide group and strong polar cyano group, the cured film exhibits excellent mechanical strength with tensile strength up to 87.8 MPa, high glass transition temperature up to 350°C, low coefficient of thermal expansion (36.9 ppm K−1), and outstanding planarity with the average surface roughness as low as 0.26 nm.

Synthesis of water-soluble and highly fluorescent gold nanoclusters for Fe3+ sensing in living cells using fluorescence imaging

2017 ◽  
Vol 5 (28) ◽  
pp. 5608-5615 ◽  
Author(s):  
Jianqiao Zhang ◽  
Chen Cai ◽  
Shumaila Razzaque ◽  
Irshad Hussain ◽  
Qun-Wei Lu ◽  
...  
Keyword(s):  
Fluorescence Imaging ◽  
Gold Nanoclusters ◽  
Chemical Properties ◽  
Living Cells ◽  
Water Soluble ◽  
Biological Sensors ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties ◽  
Chemical And Biological Sensors

Gold nanoclusters are used as excellent scaffolds for the development of chemical and biological sensors due to their outstanding physical and chemical properties.

Analysis of Phosphogypsum’s Physical and Chemical Properties and Making of Anhydrite Cement from Phosphogypsum

2013 ◽  
Vol 275-277 ◽  
pp. 2131-2135 ◽  
Author(s):  
Jie Zhou ◽  
Lin Yang ◽  
Qian Lin ◽  
Jian Xin Cao
Keyword(s):  
Solid Solution ◽  
Chemical Properties ◽  
Impurity Content ◽  
Water Soluble ◽  
Raw Material ◽  
Physical And Chemical Properties ◽  
Content Type ◽  
Gravimetric Determination ◽  
Physical And Chemical ◽  
And Chemical Properties

The phosphogypsum (PG) sample produced as the waste of the phosphoric acid fertilizer plant from Guizhou, China was studied for its properties and as a material for anhydrite cement. The impurity content, type and distribution, as well as thermal behavior and solubility of the PG were carefully studied by XRD, DTA techniques and gravimetric determination. The China Standard GB175-2007. The mineralogical studies were physical properties of the sample were studied as per the determined by XRD. The results showed that the impurities of PG are mainly water-soluble P2O5, F, organics and P2O5 and F in the gypsum lattice which has entered in to solid solution with gypsum as well as the insoluble Ca3(PO4)2 and CaF2. Experimental datum showed that a suitable anhydrite can be produced by heating PG at 1000 °C and PG up to 60% used can be as a main raw material in production of anhydrite cement.

scholarly journals The Study of Physical and Chemical Properties of the Water-Soluble Polymer Reagents and their Application as an Ointment

2018 ◽  
Vol 34 (4) ◽  
pp. 1779-1786
Author(s):  
Nagima Dzhakipbekova ◽  
Saule Sakibayeva ◽  
Erzhan Dzhakipbekov ◽  
Didar Ahmet ◽  
Saparkul Rzabay ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Water Soluble ◽  
Physical And Chemical Properties ◽  
Water Soluble Polymer ◽  
Depth Study ◽  
Scope Of Application ◽  
Physical And Chemical ◽  
Expensive Process ◽  
Equal Efficacy ◽  
And Chemical Properties

The creation of new polymer reagents from their synthesis in the laboratory to their industrial production as an ointment is relatively long and expensive process. Therefore, the most promising and justified way is to expand the range of polymer reagents by modifying the already known base samples. We studied MPAA(HP)- hydrolyzed polacrylamide modified with hydrogen peroxide,, MPAA (MEA) - hydrolyzed polycrylamide modified with monoethanolamine, MPAA (TEA) - hydrolyzed polycrylamide modified with three ethanolamine polymers. A more detailed and in-depth study of them will expand the scope of application of low-toxic, affordable reagents that are of equal efficacy to the already existing ones and their application as an ointment. Polymer MPAA-HP polymacrylamide hydrolyzed NaOH with the addition of the H2O2 modifier in the ratio PAA: NaOH: H2O2 = 1: 0.4: 0.2 the hydrolysis reaction is carried out for 1.5-2 hours at temperature of 90-950C. MPAA-MEA polymer polymaracrylamide is hydrolysed with alkali with the addition of monoethanolamine modifier in the ratio of PAA: NaOH: MEA = 1: 0.4: 0.1 the hydrolysis reactions is carried out for 1.5-2 hours at temperature of 90-95°C.

Multidimensional graphene nanostructures – synthesis and applications

2020 ◽  
Vol 92 (12) ◽  
pp. 1929-1936
Author(s):  
Raghav Garg ◽  
Daniel San Roman ◽  
Tzahi Cohen-Karni
Keyword(s):  
Three Dimensional ◽  
Chemical Properties ◽  
Volume Ratio ◽  
Direct Consequence ◽  
Material Structure ◽  
Physical And Chemical Properties ◽  
Related Research ◽  
2D Nanomaterials ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractConventional graphene electronics fail to leverage the exceptional surface-area-to-volume ratio of graphene due to the challenges imposed by arranging two-dimensional (2D) nanomaterials in three-dimensional (3D) spaces. Recently, a new topology of graphene, nanowire template 3D fuzzy graphene (NT-3DFG), has been developed to overcome this limitation. We provide an overview of the unique physical and chemical properties of NT-3DFG that are a direct consequence of the material structure and describe NT-3DFG’s promising applications in bioelectronics and energy-related research.

scholarly journals ДОСЛІДЖЕННЯ СПЕЦИФІКИ ВПЛИВУ НАФТОВОГО ЗАБРУДНЕННЯ НА ЗМІНУ ФІЗИКО-ХІМІЧНИХ ПОКАЗНИКІВ ҐРУНТУ

2014 ◽  
pp. 208-210
Author(s):  
І. С. Романович
Keyword(s):  
Oil Pollution ◽  
Chemical Properties ◽  
Soil Samples ◽  
Water Soluble ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
The Impact ◽  
Properties Of Soil ◽  
And Chemical Properties

Експериментально досліджено основні показникипроб ґрунту, забруднених сирою нафтою. Представ-лено результати зміни фізико-хімічних показниківґрунту внаслідок нафтового забруднення, проаналі-зовано вплив нафти на основні властивості ґрунту зарізних рівнів концентрації полютанта в ґрунті. Зроб-лено висновки щодо впливу нафти на якість та водо-розчинну складову ґрунту. Проведено аналіз можли-вості впливу нафтового забруднення на ґрунтовіводи. The basic physical and chemical properties of soil samples contaminated with crude oil are studied experimentally. The results of changes in physical and chemical characteristics of the soil as a result of oil pollution are presented; the influence of oil on the basic properties of the soil at different concentration levels of pollutant in the soil was analyzed. The conclusions regarding the impact of oil on the quality and water-soluble component of soil are made. The analysis of the determination of possible influence of oil pollution on groundwater was conducted.

Sign in / Sign up

Export Citation Format

Share Document