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Label-Free Aptamer Fluorescence Determination of Trace Pb2+ Using AuPd Nanoalloy Probe as Catalyst

✍ Scribed by Jiang, Zhi Liang; Tang, Mei Ling; Liu, Qing Ye; Liang, Ai Hui

Book ID: 120423773
Publisher: Trans Tech Publications, Ltd.
Year: 2013
Tongue: English
Weight: 270 KB
Volume: 631-632
Category: Article
ISSN: 1662-8958
DOI: 10.4028/www.scientific.net/AMR.631-632.18

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## Abstract The 5 nm AuPd nanoalloy in mole ratio of Au:Pd=32:1 was prepared, using sodium citrate as the stabilizing agent and NaBH~4~ as the reductant. The AuPd nanoalloy was modified by the aptamer to prepare an aptamer‐ AuPd (AptAuPd) probe for resonance scattering (RS) detection of 5.0–1250 nm