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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. (Publisher's Version)
In: Colloids and Interfaces, 4 (4), MDPI, e-ISSN 2504-5377,
DOI: 10.26083/tuprints-00017435,

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

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Item Type: Article
Origin: Secondary publication DeepGreen
Status: Publisher's Version
Title: Analysis of NMR Spectra of Submicro-Containers with Biocide DCOIT
Language: English

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.

Journal or Publication Title: Colloids and Interfaces
Volume of the journal: 4
Issue Number: 4
Place of Publication: Darmstadt
Publisher: MDPI
Collation: 13 Seiten
Uncontrolled Keywords: nano-containers, NMR, encapsulation, biocide
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
600 Technik, Medizin, angewandte Wissenschaften > 660 Technische Chemie
Divisions: 05 Department of Physics > Institute for Condensed Matter Physics
Date Deposited: 04 Feb 2022 14:51
Last Modified: 08 Mar 2023 10:17
DOI: 10.26083/tuprints-00017435
Corresponding Links:
URN: urn:nbn:de:tuda-tuprints-174353
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/17435
PPN: 505587882
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