Exploring luminescence-based temperature sensing using protein-passivated gold nanoclusters

被引:41
作者
Chen, Xi [1 ]
Essner, Jeremy B. [1 ]
Baker, Gary A. [1 ]
机构
[1] Univ Missouri, Dept Chem, Columbia, MO 65211 USA
关键词
HUMAN-SERUM-ALBUMIN; DEPENDENT FLUORESCENCE; THERMAL-STABILITY; PROTECTED AU-25; AU NANOCLUSTERS; AU-38; CLUSTERS; QUANTUM DOTS; IONIC LIQUID; THERMOMETRY; PROBES;
D O I
10.1039/c4nr02069c
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We explore the analytical performance and limitations of optically monitoring aqueous-phase temperature using protein-protected gold nanoclusters (AuNCs). Although not reported elsewhere, we find that these bio-passivated AuNCs show pronounced hysteresis upon thermal cycling. This unwanted behaviour can be eliminated by several strategies, including sot-gel coating and thermal denaturation of the biomolecular template, introducing protein-templated AuNC probes as viable nanothermometers.
引用
收藏
页码:9594 / 9598
页数:5
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