scholarly journals Strategy for Development of Modern Protective Equipment Based on Organometallic Complexes with Desired Properties

2020 ◽  
Vol 4 (3) ◽  
pp. 305-337
Keyword(s):  
Covalent Binding ◽  
Physical Nature ◽  
Organometallic Complexes ◽  
Protective Equipment ◽  
Surface Attachment ◽  
Protective Properties ◽  
Metal Organic ◽  
The Creation

The aim of this review is to analyze the existing approaches to the creation and the improvement of materials and fabrics based on metal-organic frameworks (MOFs), which can be the basis for developing a strategy for creating modular MOF materials for modern personal protective equipment (PPE) against toxic chemicals and pathogenic microorganisms. The review provides the details of the use of biomolecules for integration with MOF by pore encapsulation, surface attachment, covalent binding, in situ encapsulation of biomolecules in MOF, and the creation of bio-MOFs. The characteristics of biomolecules that can be included in MOFs are presented. Certain schemes for the inclusion of some biomolecules in MOFs are given. The main properties of MOFs, the main trends of their creation, as well as the most promising directions of application of biomolecules/MOF composites are discussed. The strategy of the creation of modular MOF materials with desired properties for modern PPE, that provide protection against various hazards of chemical, biological and physical nature, is presented. The main trends of the development of modern PPE based on modular MOF materials with desired properties are given. Particular schemes of the creation of separate modules in MOF structures, as well as the determination of their importance and significance for imparting universal protective properties to MOF materials are proposed

scholarly journals Use of Modularity as a Principle of Design of Metal-organic Framework-based Materials with Specified Properties for Creating Modern Protective Equipment

2021 ◽  
Vol 5 (2) ◽  
pp. 165-172
Keyword(s):  
Personal Protective Equipment ◽  
Metal Organic Framework ◽  
Physical Nature ◽  
Toxic Chemicals ◽  
Protective Equipment ◽  
Pathogenic Microorganisms ◽  
Protective Properties ◽  
Metal Organic ◽  
The Creation ◽  
Universal Structure

An earlier analysis of approaches to the creation and improvement of protective materials and tissues made it possible to assume that the development of personal protective equipment (PPE) against various damaging factors of chemical, biological and physical nature can in future go towards the creation of modular organometallic frame structures (MOF-materials) with specific properties (from toxic chemicals and pathogenic microorganisms). The aim of this article is to develop and disclose the principle of modularity of construction of protective materials based on MOF-structures with specific properties. The principle of modularity of construction of protective materials with specific properties, proposed by us, is based on the use of single unified platform, on the surface of which special modules or combinations of modules are applied, which ensure the protection from various factors of chemical, biological and physical nature. The universal structure of MOF, called «MOF-universal», has been substantiated. The composition and properties of individual modules, possible and optimal combinations of modules of MOF-structures, the importance and significance of individual modules and their combinations for imparting universal protective properties to MOF-material are determined. The use of this principle will make it possible to impart protective properties to almost any clothing, while maintaining its physiological and hygienic characteristics and providing the required level of protection for personnel, without using specialized personal protective equipment.

A functional FePt@MOFs (MIL-101(Fe)) nano-platform for high efficient colorimetric determination of H2O2

The Analyst ◽  
2019 ◽  
Vol 144 (8) ◽  
pp. 2716-2724 ◽  
Author(s):  
Zunfu Hu ◽  
Yongheng Yin ◽  
Qingyun Liu ◽  
Xiuwen Zheng
Keyword(s):  
Colorimetric Detection ◽  
Metal Organic Frameworks ◽  
Fept Nanoparticles ◽  
Colorimetric Determination ◽  
High Efficient ◽  
Metal Organic ◽  
Surface Modified

Surface-modified FePt nanoparticles were loaded into metal–organic frameworks in a facile in situ way and the resulting material (FePt@MOFs NCs) acted as a high efficient colorimetric detection agent for H2O2.

scholarly journals Determination of the dehydration pathway in a flexible metal–organic framework by dynamic in situ x-ray diffraction

2020 ◽  
Vol 7 (3) ◽  
pp. 034305
Author(s):  
Ian M. Walton ◽  
Jordan M. Cox ◽  
Shea D. Myers ◽  
Cassidy A. Benson ◽  
Travis B. Mitchell ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Organic ◽  
Flexible Metal ◽  
Organic Framework

INDIREKTE PAPIERCHROMATOGRAPHISCHE METHODE ZUR BESTIMMUNG DER HARNOESTROGENE

1961 ◽  
Vol 38 (4) ◽  
pp. 545-562 ◽  
Author(s):  
L. Kecskés ◽  
F. Mutschler ◽  
I. Glós ◽  
E. Thán ◽  
I. Farkas ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Granulosa Cell ◽  
Iron Content ◽  
List Type ◽  
Granulosa Cell Tumour ◽  
Hydrolysis Of ◽  
Phenol Fraction ◽  
Qualitative Determination

ABSTRACT 1. An indirect paperchromatographic method is described for separating urinary oestrogens; this consists of the following steps: acidic hydrolysis, extraction with ether, dissociation of phenol-fractions with partition between the solvents. Previous purification of phenol fraction with the aid of paperchromatography. The elution of oestrogen containing fractions is followed by acetylation. Oestrogen acetate is isolated by re-chromatography. The chromatogram was developed after hydrolysis of the oestrogens 'in situ' on the paper. The quantity of oestrogens was determined indirectly, by means of an iron-reaction, after the elution of the iron content of the oestrogen spot, which was developed by the Jellinek-reaction. 2. The method described above is satisfactory for determining urinary oestrogen, 17β-oestradiol and oestriol, but could include 16-epioestriol and other oestrogenic metabolites. 3. The sensitivity of the method is 1.3–1.6 μg/24 hours. 4. The quantitative and qualitative determination of urinary oestrogens with the above mentioned method was performed in 50 pregnant and 9 non pregnant women, and also in 2 patients with granulosa cell tumour.

Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

2020 ◽  
Author(s):  
Keishiro Yamashita ◽  
Kazuki Komatsu ◽  
Hiroyuki Kagi
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Crystal Growth ◽  
Single Crystal ◽  
Room Temperature ◽  
Growth Technique ◽  
Salt Hydrate ◽  
X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

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