Recognition of anti-mycolic acid antibody at self-assembled mycolic acid antigens on a gold electrode: a potential impedimetric immunosensing platform for active tuberculosis.

Electrochemical impedimetric recognition by anti-mycolic acid antibodies, present in tuberculosis (TB)-positive human serum co-infected with human immunodeficiency virus (HIV), of mycolic acids (MA) integrated into a self-assembled monolayer of N-(2-mercaptoethyl)octadecanamide on a gold electrode is described, proving that the MA-based electrode can satisfactorily discriminate between a TB-positive and a TB-negative serum, thus offering promise as a potential impedimetric immunosensing platform for active tuberculosis.