Electroanalytical study of five carbosilane dendrimers at the interface between two immiscible electrolyte solutions.

The Analyst
Karolina KowalewskaLukasz Poltorak

Abstract

This work is focused on the electroanalytical study of a family of five imidazolium-terminated carbosilane dendrimers (from generation G1 to G3) at the polarized liquid-liquid interface formed between water and 1,2-dichloroethane solutions. All dendrimers with permanently and positively charged imidazolium groups located at the periphery within the branched carbosilane core were found to be electrochemically active. Based on the concentration and scan rate dependencies we have concluded that these molecules undergo interfacial ion transfer processes accompanied by interfacial adsorption/desorption rather than the electrochemically induced interfacial formation of the macromolecule-anion (tetrakis(4-chlorophenyl)borate) from the organic phase complex. Also, we report several physicochemical and electroanalytical parameters (e.g. diffusion coefficients, LODs, and detection sensitivities) for the studied family of dendrimers. Our work aims to contribute to the understating of the interaction between branched macromolecules and biomimetic interfaces.

References

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Feb 20, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Hirohisa NagataniHisanori Imura
May 22, 2018·Analytical Chemistry·Lukasz PoltorakMarcel de Puit
Oct 7, 2018·Biochimica Et Biophysica Acta. Biomembranes·Lukasz PoltorakErnst J R Sudhölter
Jul 28, 2020·Journal of Hazardous Materials·Lukasz PoltorakSławomira Skrzypek

Methods Mentioned

BETA
transfection
biosensors

Related Concepts

Electrolytes
Ethylene dichloride
Ions
Polymers
Peripheral
Branching (Qualifier Value)
Liquid Diet
Scanning
Core
tetrakis(4-chlorophenyl)borate

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