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Gold Nanoparticle-Based Fluorometric and Colorimetric Sensing of Copper(II) Ions

✍ Scribed by X. He; H. Liu; Y. Li; S. Wang; Y. Li; N. Wang; J. Xiao; X. Xu; D. Zhu

Publisher
John Wiley and Sons
Year
2005
Tongue
English
Weight
395 KB
Volume
17
Category
Article
ISSN
0935-9648

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## Abstract **Seeing is sensing**: Calsequestrin (CSQ) functionalized gold nanoparticles undergo calcium‐dependent CSQ polymerization, which results in a clear color change (see picture) together with precipitation. The sensing system is specific for Ca^2+^ ions and the differences between normal a