Facile synthesis of large area pebble-like β-NaFeO2 perovskite for simultaneous sensing of dopamine, uric acid, xanthine and hypoxanthine in human blood

Sensitive Electrochemical Detection of Bioactive Molecules (Hydrogen Peroxide, Glucose, Dopamine) with Perovskites-Based Sensors

“…Among other lanthanide A-site ions, it was shown that between neodyme and samarium, Nd-based perovskite (NdFeO 3 ) presents the lower detection limit of 270 nM [56]. Other A-site ions are alkali ions such as sodium [53,55], cesium [59], alkaline-earth ions such as strontium [50,54,58], iron ions [52], or zinc ions [57]. Associated B-site ions, involved in one of the pathways of oxidation of DA to DA hydroquinone (Figure 5), are palladium [50], titanium [52,54], niobium [53,59], iron [55], tin [57], and lead [59].…”

“…Other A-site ions are alkali ions such as sodium [53,55], cesium [59], alkaline-earth ions such as strontium [50,54,58], iron ions [52], or zinc ions [57]. Associated B-site ions, involved in one of the pathways of oxidation of DA to DA hydroquinone (Figure 5), are palladium [50], titanium [52,54], niobium [53,59], iron [55], tin [57], and lead [59]. The lower detection limits (1-3 nM) are obtained with FeTiO 3 [53], β-NaFeO 2 [55], ZnSnO 3 [57], and CsPbBr 3 [59].…”

“…Associated B-site ions, involved in one of the pathways of oxidation of DA to DA hydroquinone (Figure 5), are palladium [50], titanium [52,54], niobium [53,59], iron [55], tin [57], and lead [59]. The lower detection limits (1-3 nM) are obtained with FeTiO 3 [53], β-NaFeO 2 [55], ZnSnO 3 [57], and CsPbBr 3 [59].…”

“…Therefore, the simultaneous detection of these biomarkers is of high interest. It has been obtained using electrocatalysis with β-NaFeO 2 perovskite (Figure 7) [55]. Figure 6.…”

A Wearable PVA Film Supported TiO2 Nanoparticles Decorated NaNbO3 Nanoflakes‐Based SERS Sensor for Simultaneous Detection of Metabolites and Biomolecules in Human Sweat Samples

“…[3] Among these, the biochemical signals are observed from the sweat-based biomarkers such as biomolecules (e.g., ascorbic acid (AA), uric acid (UA)), electrolytes (e.g., sodium, potassium), metabolites (e.g., glucose, urea, lactate), and hormones which provide the vital information about the human physiological condition. [4][5][6][7] For example, the normal physiological concentration of biomolecules like AA and UA in human body fluid like sweat is reported as 61.49 × 10 −6 and 24.5 × 10 −6 m, respectively. The imbalance in the concentration indicates the increased risk of digestive distress, kidney stones, heart disease, and permanent damages in bone, joint, and tissues.…”