A novel electrochemical DNAzyme sensor for the amplified detection of Pb2+ ions.
A novel amplification strategy based on DNAzyme functionalized gold nanoparticles was employed to enhance the sensitivity of an electrochemical sensor for detection of Pb2+. The detection limit is 0.028 nM, which is much lower than for other electrochemical DNAzyme sensors.
Yang
Xiaorong
X
College of Science, Nanjing University of Technology, Nanjing 210009, PR China.
Xu
Juan
J
Tang
Xuemei
X
Liu
Huixiang
H
Tian
Danbi
D
D015374:Biosensing Techniques / Q000379:methods*; D002413:Cations, Divalent / Q000032:analysis / Q000378:metabolism; D021881:DNA, Catalytic / Q000378:metabolism*; D004563:Electrochemistry / Q000379:methods*; D006046:Gold / Q000737:chemistry; D007854:Lead / Q000032:analysis* / Q000378:metabolism; D057230:Limit of Detection; D053768:Metal Nanoparticles / Q000737:chemistry
D002413:Cations, Divalent; D021881:DNA, Catalytic; D007854:Lead; D006046:Gold