ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Formation and properties of colloidal particles of cationic derivatives of chlorin e₆ in aqueous medium

Dmitry Belykh, Inna Loukhina, Vasily Mikhaylov, and Irina Khudyaeva

Institute of Chemistry of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences, Syktyvkar, Russian Federation

E-mail: belykh-dv@mail.ru

Received: 22 July 2020  Accepted: 4 November 2020

Abstract:

Abstract

We show that the colloidal particles formed by chlorin e₆ cationic derivatives have a positive charge and their stability decreases with decreasing chlorin concentration. The concentration at which colloid formation begins was found to be determined by the number of cationic groups in the molecule; moreover, as it should be expected, the more cationic groups, the higher this concentration. The formation of stable colloidal particles is facilitated by the presence of a cationic group distant from the macrocycle.

Graphic abstract

Keywords: Chlorin e6 derivatives; Electrokinetic potential; Aggregation; Colloidal particles

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-020-01421-w

Chemical Papers 75 (4) 1761–1766 (2021)