A photoelectrochemical immunosensor for benzo[a]pyrene detection amplified by bifunctional gold nanoparticles.
Ultrasensitive photoelectrochemical immunoassay of polycyclic aromatic hydrocarbon (PAH) is proposed using an antibody-modified nanostructured TiO(2) electrode combined with bifunctional gold nanoparticles modified with the PAH antigen and horseradish peroxidase (HRP). The HRP-catalyzed reaction prompts the electron transfer between the electrode and electrolyte causing an excellent photocatalytic performance.
State Key Laboratory of Chemo/Biosensing and Chemometrics, Department of Chemistry, Hunan University, Changsha 410082, China.
Qing
Q
Kang
Yufang
Y
Chen
Chengcheng
C
Li
Qingyun
Q
Cai
Shouzhuo
S
Yao
C A
CA
Grimes
D055910:Antibodies, Immobilized / Q000737:chemistry / Q000276:immunology; D001580:Benzopyrenes / Q000032:analysis*; D015374:Biosensing Techniques / Q000379:methods*; D003432:Cross-Linking Reagents / Q000737:chemistry*; D004563:Electrochemistry / Q000379:methods*; D006046:Gold / Q000737:chemistry*; D007118:Immunoassay / Q000379:methods*; D053768:Metal Nanoparticles / Q000737:chemistry*
D055910:Antibodies, Immobilized; D001580:Benzopyrenes; D003432:Cross-Linking Reagents; D006046:Gold