Journal
CHEMICAL COMMUNICATIONS
Volume 49, Issue 69, Pages 7659-7661Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3cc43970d
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Funding
- NSFC [21275004, 20905062, 21075100, 21275119]
- New Century Excellent Talent Program of MOE [NCET-12-0932]
- Fundamental Research Funds for the Central Universities [XDJK2012A004]
- Southwest University [SWUB2008078]
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Positively charged gold nanoparticles ((+)AuNPs) are electrostatically adsorbed on the negatively charged aptamers and the solution displays a blue color due to the aggregation of the (+)AuNPs, while the binding of the target lysozyme with the aptamers reduces the charge of the aptamers, which stabilizes the (+)AuNPs and the (+)AuNPs solution remains red in color.
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