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Analysis of NMR Spectra of Submicro-Containers with Biocide DCOIT

Aidarova, Saule B. ; Issayeva, Assem B. ; Sharipova, Altynay A. ; Grigoriev, Dmitry O. ; Miller, Reinhard ; Seilkhanov, Tulegen M. ; Babayev, Alpamys A. ; Issakhov, Miras O. (2022)
Analysis of NMR Spectra of Submicro-Containers with Biocide DCOIT.
In: Colloids and Interfaces, 2022, 4 (4)
doi: 10.26083/tuprints-00017435
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Type of entry: Secondary publication
Title: Analysis of NMR Spectra of Submicro-Containers with Biocide DCOIT
Language: English
Date: 4 February 2022
Place of Publication: Darmstadt
Year of primary publication: 2022
Publisher: MDPI
Journal or Publication Title: Colloids and Interfaces
Volume of the journal: 4
Issue Number: 4
Collation: 13 Seiten
DOI: 10.26083/tuprints-00017435
Corresponding Links:
Origin: Secondary publication DeepGreen

Nowadays, the search for and development of new forms of materials with biocides is an actual problem of the modern science of nanosized materials due to the problem of microbiological contamination, which can be solved by using nanocontainers carrying biocides. Depending on the morphology of the nanocontainers and the filled active agents, it is possible to create coatings with specially designed self-healing functionality or multifunctional properties. The purpose of this work was to produce submicro-containers (SMCs) with a shell of SiO₂ nanoparticles and a core of polymerized 3-(trimethoxysilyl) propyl methacrylate filled with 5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) in an oil in water (O/W) emulsion. The chemical nature of the individual components of the system and nano-capsules were investigated using NMR spectroscopy. The size and zeta potential of the SMCs were measured by a dynamic light scattering method (d = 170–180 nm, polydispersity index PDI = 0.125 and zeta-potential = 55 mV), the morphology of their outer surface was determined using SEM. The results of NMR analysis showed that during the addition of the biocide into the SMCs, its chemical structure is retained, as is its activity. Minor changes in the chemical shifts of the ¹H NMR spectra of the SMCs with DCOIT, as well as of the biocide itself, confirm the inclusion of DCOIT inside the SMCs.

Uncontrolled Keywords: nano-containers, NMR, encapsulation, biocide
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-174353
Classification DDC: 500 Science and mathematics > 530 Physics
600 Technology, medicine, applied sciences > 660 Chemical engineering
Divisions: 05 Department of Physics > Institute for Condensed Matter Physics
Date Deposited: 04 Feb 2022 14:51
Last Modified: 14 Nov 2023 19:03
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/17435
PPN: 505587882
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