One-Step Synthesis of Functional Sulfonated Polynaphthoylenebenzimidazoles for Biosensing Applications

Polynaphthoylenebenzimidazoles containing functional sulfo groups were synthesized by a one-step method in a sulfuric acid medium with oleum. A polymer-analogous transformation of these polymers with aqueous solutions of metal salts (K, Ca, and Cr) was carried out. Their chemical structure was chara...

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Published inApplied sciences Vol. 13; no. 2; p. 1073
Main Authors Bulycheva, Elena G., Belomoina, Natalya M., Begunov, Roman S., Nikiforova, Galina G., Vasil’ev, Viktor G., Gainutdinov, Radmir V., Yablokov, Mikhail Yu, Buzin, Alexander I., Buzin, Mikhail I.
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2023
Subjects
Acetaminophen
Aqueous solutions
Biosensors
Calcium
Chemical composition
Chromium
Coatings
Decomposition
Distilled water
electron beam dispersion in vacuum
Electron beams
Hydrocarbons
Morphology
NMR
Nuclear magnetic resonance
polyheteroarylenes
Polymer coatings
Polymers
Quartz crystal microbalance
Sensors
Solvents
Spectrum analysis
sulfonated polynaphthoylenebenzimidazoles
Sulfur content
Sulfuric acid
Vacuum deposition
Viscosity
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Summary:Polynaphthoylenebenzimidazoles containing functional sulfo groups were synthesized by a one-step method in a sulfuric acid medium with oleum. A polymer-analogous transformation of these polymers with aqueous solutions of metal salts (K, Ca, and Cr) was carried out. Their chemical structure was characterized by FTIR, NMR, and elemental analysis. Polymer salt coatings were deposited on QCM sensor surfaces by electron beam-induced vacuum deposition. The morphology of the coatings was characterized by AFM. It was shown that the coatings formed from a series of polymer salts have different adsorption activity in acetaminophen–water solution compared to distilled water. The QCM results indicate that sensor signal correlates with polymer coating thickness, morphology, and its chemical composition.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13021073