Synthesis and characterization of allomelanin model from 1,8-dihydroxynaphthalene autooxidation.

ABSTRACT: In this work a novel method for synthesis of 1,8-dihydroxynaphthalene melanin was presented, as well as the physicochemical properties, molecular structure, and characteristics of the pigment. The proposed synthesis protocol is simple and cost-effective with no enzymes or catalysts needed. The final product is not adsorbed on any surface, since the pigment is the result of autooxidation of 1,8-dihydroxynaphthalene. Performed analyses revealed that the solubility, optical and paramagnetic properties are typical for melanins, and in the EPR spectra an unusual hyperfine structure was observed. The molecular structure of the pigment consists of three different layers forming polar and non-polar surfaces. Additionally, the presence of ether bonds presence was revealed. The developed method crea

SUBMITTER: Pukalski J 

PROVIDER: S-EPMC11695988 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature