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2019年 第13卷 第1期

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《环境科学与工程前沿（英文）》 >> 2019年 第13卷 第1期 doi: 10.1007/s11783-019-1094-7

Label-free colorimetric nanosensor with improved sensitivity for Pb

1. Center for Sensor Technology of Environment and Health, State Key Joint Laboratory of ESPC, School of Environment, Tsinghua University, Beijing 100084, China
2. Department of Environmental Engineering, NED University of Engineering and Technology, Karachi 75270, Pakistan

发布日期： 2018-12-12
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摘要

• Unmodified-AuNP based, colorimetric nanosensor was constructed for Pb2+ detection.

• 5-nucleotide truncation in DNAzyme made complete substrate detachment upon Pb2+.

• Ultrasensitive and selective detection of Lead (II) was achieved with 0.2×10-9 mol/L LOD.

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