Photoelectrochemical determination of phloroglucinol based on a combination of a ceramic perovskite and bismuth vanadate.

Phloroglucinol (PL) or 1,3,5-trihydroxybenzene is a phenolic compound used therapeutically for its antispasmodic properties. However, an overdose or prolonged exposure to PL can have harmful effects on human health. This work describes for the first time the development of a photoelectrochemical (PEC) sensor to determine PL.

Membraneless, self-powered immunosensing of a cardiac biomarker by exploiting a PEC platform based on CaBiTaO combined with bismuth oxyiodides.

This work describes the development of a membraneless, self-powered immunosensor exploiting a photoelectrochemical system based on two photoelectrodes for cardiac troponin I (cTn). An electrode based on CaBiTaO combined with bismuth oxyiodides (BiOI/BiOI/BiOI) was modified with the cTnI antibody (-cTnI) and applied in a photoelectrochemical cell as a photoanode. To perform the cTnI detection exploiting a self-powered photoelectrochemical setup, the immunosensor (-cTnI/BiOI/BiOI/BiOI/CaBiTaO/FTO) was coupled to a photoelectrochemical cell containing a photocathode based on CuBiO (CBO/FTO) for zero-biased photoelectrochemical immunosensing of cardiac troponin I (cTnI) biomarker.