Ultrasensitive photoelectrochemical biosensor for the detection of HTLV-I DNA: A cascade signal amplification strategy integrating λ-exonuclease aided target recycling with hybridization chain reaction and enzyme catalysis

An ultrasensitive PEC biosensor for HTLV-I DNA detection was developed by integrating λ-exonuclease aided target recycling with hybridization chain reaction and enzyme catalysis for cascade signal amplification.206