Flexible copper-biopolymer nanocomposite sensors for trace level lead detection in water

A Water-Dispersible Carboxylated Carbon Nitride Nanoparticles-Based Electrochemical Platform for Direct Reporting of Hydroxyl Radical in Meat

“…The linear regression equation between current difference (ΔI p ) and the concentration of • OH was ΔI p (μA) = 0.300[ • OH] − 0.0429 (R 2 = 0.9933), ΔI p = I 0 − I p , I 0 and I p were the peak currents of MB obtained from electrodes before and after incubated with various concentration of • OH ( Figure 4 D). The limit of detection was estimated from the equation: LOD = 3σ/K, σ was the standard deviation of the blank solution (i.e., without • OH), and K was the slope of the calibration graph [ 43 ]. Thus, ΔI p became larger for decreasing MB values.…”

Nanozyme-based sensors for detection of food biomarkers: a review

“…For successful biosensing activity, selecting an appropriate working electrode is essential. Recently, several works have focused on the development and modification of different electrode materials made from carbon elements, 46 copper, 47 gold, 48 platinum, 49 iron, 50 cobalt, 51 nickel, among others 52 to improve the stability, selectivity, and sensitivity of the sensors. Furthermore, the miniaturisation of working electrodes has opened a promising path for developing small-sized sensors like the screen-printed electrode-based biosensing devices that need a minimal sample amount for sensing.…”

A lab-made screen-printed sensing strip for sensitive and selective electrochemical detection of butylated hydroxyanisole

“…24,25 The screen-printed based sensors are of vital importance that can fulfill the demand for miniaturization, sensitivity, and selectivity in biological, water, food, and drug analysis. 26–29…”