Comparative Study of Electrochemical Biosensors Based on Highly Efficient Mesoporous ZrO-Ag-G-SiO and InO-G-SiO for Rapid Recognition of .

Here, we reported an innovative and electrochemical biosensor for the rapid detection of 7. We fabricated the mesoporous ZrO-Ag-G-SiO (ZAGS) and InO-G-SiO (IGS) sensors, and cyclic voltammetry (CV) was employed to detect the bacteria. The development of these portable sensors addresses the challenges of conventional time-consuming and more expensive laboratory-based analyses. Hence, the biosensors were highly selective to detect . The sensor could recognize an individual cell in 1 μL of sample volume within 30 s. live cells tied down on sample nanoparticles worked toward the definite acquirement of . The high thickness of negative charge on the surface of cells effectively regulated the concentration of dominant part charge carriers in the mesoporous channel, allowing a continuous check of concentration in a known sample. The signal current decreased linearly, while the concentration increased from 1.0 × 10 to 1.0 × 10 CFU/mL. ZAGS and IGS biosensors could detect in the range from 10 to 10 CFU/mL. ZAGS and IGS biosensors in this investigation showed great specificity, reproducibility, stability, and selectivity and are expected to have a great impact on applications in the detection of foodborne pathogens.