4.6 Article

Stable fluorescent gold nanoparticles for detection of Cu2+ with good sensitivity and selectivity

Journal

ANALYST
Volume 137, Issue 2, Pages 301-304

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c1an15877e

Keywords

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Funding

  1. National Science Foundation of China [20972151, 21105018, 21025520, 90813032]
  2. Chinese Academy of Sciences [KJCX2-YW-M15]
  3. Ministry of Science and Technology [2011CB933201, 2009CB930001]
  4. Ministry of Human Resources and Social Security of China

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A simple and one-pot method for the synthesis of water-soluble, red-emitting, highly fluorescent gold nanoparticles has been reported using 11-mercaptoundecanoic acid (11-MUA) as the protecting group. We found that the fluorescent gold nanoparticles could selectively detect copper ions in aqueous solution, with a limit of detection of about 87 nM.

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