Tahereh Kondori, Niloufar Akbarzadeh-T, Somayeh Tajik, Hadi Beitollahi
The designed sensor with cost-effective and good performance could be valuable for therapeutic drug monitoring and clinical diagnostics.
BACKGROUND AND PURPOSE: Doxorubicin (DOX) serves as an anthracycline-based chemotherapy drug to treat multiple types of cancers and sarcomas, which include lung, breast, bladder, leukaemia, liver, head and neck cancers.
EXPERIMENTAL APPROACH: The electroanalysis of the trace level of DOX in this study was conducted using a Zn-Ni metal-organic framework nanosheets@graphene oxide nanocomposite (Zn-Ni MOF NSs@GO) after the modification of a screen-printed carbon electrode (Zn-Ni MOF NSs@GO/SPCE). Using chronoamperometry, cyclic voltammetry and differential pulse voltammetry, the electrochemical characteristics of the sensor as constructed for DOX measurement were examined.
KEY RESULTS: Consequently, the composite sensor demonstrated exceptional electrocatalytic performance in oxidizing DOX within a concentration range of 0.004 to 190.0 μM, with a detection limit of 0.001 μM. It was found that the Zn-Ni MOF NSs@GO/SPCE was effective at determining DOX in real samples, with good recovery values in the 97.1 to 102.0 % range.
CONCLUSION: The designed sensor with cost-effective and good performance could be valuable for therapeutic drug monitoring and clinical diagnostics.