Pellet patented technology for fast and distinct visual detection of cholinesterase inhibitors in liquids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F18%3A00110215" target="_blank" >RIV/00216224:14310/18:00110215 - isvavai.cz</a>

Alternative codes found

RIV/62157124:16370/18:43876631 RIV/00027162:_____/18:N0000157

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S073170851830880X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S073170851830880X?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jpba.2018.08.050" target="_blank" >10.1016/j.jpba.2018.08.050</a>

Result language

angličtina

Original language name

Pellet patented technology for fast and distinct visual detection of cholinesterase inhibitors in liquids

Original language description

The main objective of the presented research was to prepare an innovative carrier as a filler for detection tubes in the form of double-coated pellets with a very significant color transition during the detection of cholinesterase inhibitors such as nerve agents, organophosphorus or carbamate insecticides in liquids that is observable visually and also spectrophotometrically at 412 nm. The pellet cores were prepared by the extrusion/spheronization method. Consecutively, two different coats were applied on the pellet cores in the coating device using the Wurster column method. To increase the color change intensity, the second semipermeable coat based on Eudragit (R) RL was applied on top of the first coat, which was formed by butyrylcholinesterase immobilized in hydroxypropyl methylcellulose. Prepared samples differing in thickness of the second coat were evaluated for their quality parameters, enzymatic activity and inhibition. The detection mechanism was based on the standard Ellman's colorimetric reaction. It was observed that the semipermeable coat prevented leaching of the enzyme into the solution and led to an increased intensity of color transition from white - yellow to white - deep yellow/orange, thus enabling a more accurate visual detection. This system allows easy, rapid and safe identification of cholinesterase inhibitors in liquids, especially chemical warfare agents.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30104 - Pharmacology and pharmacy

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Pharmaceutical and Biomedical Analysis

ISSN

0731-7085

e-ISSN

1873-264X

Volume of the periodical

161

Issue of the periodical within the volume

August

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

206-213

UT code for WoS article

000447682300023

EID of the result in the Scopus database

2-s2.0-85052438910