Enhanced Interaction of Ciprofloxacin with Humic Substances and Magnetite-Silica-Nanoparticles in Multicomponent System: Spectrophotometric and Electrokinetic Studies

Dzeranov, A.; Bondarenko, L.; Dzhardimalieva, G.; Kelbysheva, E.; Zmeev, D.; Patsaeva, S.; Tropskaya, N.; Jorobekova, S.; Kydralieva, K.

Авторы: Dzeranov A., Bondarenko L., Dzhardimalieva G., Kelbysheva E., Zmeev D., Patsaeva S., Tropskaya N., Jorobekova S., Kydralieva K.
Журнал: Journal of Biomedical Photonics & Engineering
Том: 10
Номер: 2
Год издания: 2024
Издательство: Samara National Research University
Местоположение издательства: Samara
Первая страница: 020301-01
Последняя страница: 020301-12
Номер статьи: 020301
DOI: 10.18287/JBPE24.10.020301
Аннотация: We evaluated the effect of dissolved organic matter (DOM) on the sorption of antibiotic ciprofloxacin (CIP) by magnetite-silica nanoparticles (NPs). For this purpose, magnetite NPs (M) modified with organosilanes (tetraethoxysilane and 3-aminopropyltriethoxysilane, TA) were used as anatural model of colloidal particles and a orbent. Absorption spectra did not manifest any interaction between CIP and humic preparation (HP, sodium salt of humic acids) in aquatic system at pH from 6 to 8. On the contrary, the introduction of the MTA NPs into a bicomponent system of CIP incubated with HP lead to more than twice increased CIP sorption. Results of electrokinetic measurements in terms of zeta potential figured out the interaction mechanism in the CIP-HP-NPs system. In the three-component system, the MTA surface completely recharged from negative to positive, and importantly this effect is pH-dependent. The MTA zeta potential varied from−15 (pH 6) and −30 mV (pH 8) to +10 (pH 6) and +2 (pH 8). The study provides novel information on very actual topic in biomedical and ecological research since NPs are increasingly produced and implemented for various medical and environmental applications, including sorption of emerging ecotoxicants (pharmaceuticals), but the assessment of naturally occurring DOM in water should not be ignored.
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Enhanced Interaction of Ciprofloxacin with Humic Substances and Magnetite-Silica-Nanoparticles in Multicomponent System: Spectrophotometric and Electrokinetic Studiesстатья

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