QUENCHING MECHANISM OF HUMAN SERUM ALBUMIN FLUORESCENCE BY GANGLERON

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Submitted: 2025-03-12; Published: 2025-03-12

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Abstract

Interaction between Gangleron (spasmolytic and anaesthetizing drug) and human serum albumin (HSA) was studied using UV/vis and fluorescence spectroscopy methods. The quenching mechanism of HSA fluorescence was discussed based on interaction studies carried out at different temperatures (298, 303 and 309 K). Stern-Volmer constant (KSV), quenching rate constant (kq) and activation energy of bimolecular quenching (Еа) were evaluated. UV/vis absorption spectra were used to confirm the quenching mechanism.