Anticancer Efficacy and Folic Acid Biosensing using poly (3, 4-ethylene dioxythiophene)- Cadmium oxide Composite Platform

Author:

Thivya P.,Imran K.,Thenrajan Thatchanamoorthy,Ramya R.,Venkateswara Raju ChikkiliORCID,Venkataprasad Gajapaneni,Kumar P.,Wilson JeyarajORCID

Abstract

Nowadays, monitoring vitamins is essential as they play a significant role in human metabolisms. Among them, Folic acid (FA), one type of vitamin B, is responsible for various functions, including new red blood cells, synthesis, repair of DNA, enough production during pregnancy. So, the detection of FA is crucial, and hence in this study, we report poly (3, 4-ethylenedioxythiophene) (PEDOT) and cadmium oxide (CdO) (PEDOT-CdO) composite for the effective sensing of FA. The PEDOT nanospheres were prepared by the wet chemical method, and CdO nanorods were synthesized using the hydrothermal technique. The sulfur groups in PEDOT connected with Cd2+ ions in CdO nanoparticles enriched their electrostatic interaction developing a robust and straightforward electrochemical FA sensor. The as-prepared PEDOT-CdO biosensor exhibited excellent sensing results towards selective determination of FA in the linear range of 40 nM-1 mM with a lower detection limit of 8.4 nM. In addition, the investigation of cytotoxic nature against human breast cancer cell lines (MCF-7) reveals that, the reported composite induces apoptotic cell death and can be used as an anticancer agent. The proposed biosensor can be used for device fabrication in sensor applications as well as a vector for targeted drug delivery for cancer cell diagnosis.

Publisher

The Electrochemical Society

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