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- W3209553698 abstract "Based on the different electrochemical oxidation potentials of metal ions, a new method for the simultaneous detection of carcinoembryonic antigen (CEA) and platelet-derived growth factor-BB (PDGF-BB) was constructed. The amino-rich polyethyleneimine gold nanoparticles (PEI-Au) is used as a signal amplification platform carrier to load aptamers and metal ions. On the other hand, the good conductivity of PEI-Au can enhance the electrode conductivity and accelerate electron transfer. It showed a good linear relationship in the range of 0.1–26.0 ng / mL and 0.5–20.0 ng / mL while the detection limits were 33.0 pg / mL and 166.0 pg / mL, respectively. In addition, the prepared electrochemical sensor has high selectivity and stability. Clinical serum analysis results show that the proposed sensor has potential application value in the clinical detection of CEA and PDGF-BB." @default.
- W3209553698 created "2021-11-08" @default.
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- W3209553698 date "2021-12-01" @default.
- W3209553698 modified "2023-10-17" @default.
- W3209553698 title "Electrochemical aptamer sensor based on metal ion-labeled polyethyleneimine gold nanoparticles for simultaneous detection of multiple disease markers" @default.
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- W3209553698 doi "https://doi.org/10.1016/j.electacta.2021.139423" @default.
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