Discrimination and detection of bacteria with a label-free impedimetric biosensor based on self-assembled lectin monolayer

Based on the affinity of lectin with glycosyl complex on cellular surface, a label-free impedimetric biosensor for discrimination and detection of bacteria has been reported. The impedimetric biosensor is fabricated by a simply and reproducibly self-assembled lectin monolayer on the polyelectrolyte modified electrode through electrostatic interaction. Two well-known lectins, concanavalin A (Con A) and ricinus communis agglutinin (RCA), are used...