The effect of inosine on the spectroscopic properties and crystal structure of a NIR-emitting DNA-stabilized silver nanocluster

被引：16
作者：
Cerretani, Cecilia [1 ,2 ]
Liisberg, Mikkel B. [1 ,2 ]
Ruck, Vanessa [1 ,2 ]
Kondo, Jiro [3 ]
Vosch, Tom [1 ,2 ]
机构：
[1] Univ Copenhagen, Nanosci Ctr, Univ Pk 5, DK-2100 Copenhagen, Denmark
[2] Univ Copenhagen, Dept Chem, Univ Pk 5, DK-2100 Copenhagen, Denmark
[3] Sophia Univ, Dept Mat & Life Sci, Chiyoda Ku, 7-1 Kioi Cho, Tokyo 1028554, Japan
来源：
NANOSCALE ADVANCES | 2022年 / 4卷 / 15期
关键词：
QUANTUM YIELD; FLUORESCENCE;
D O I：
10.1039/d2na00325b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The effect of replacing guanosines with inosines in the two stabilizing strands (5 '-CACCTAGCGA-3 ') of the NIR emissive DNA-Ag16NC was investigated. The spectroscopic behavior of the inosine mutants is position-dependent: when the guanosine in position 7 was exchanged, the nanosecond fluorescence decay time shortened, while having the inosine in position 9 made the decay time longer. Thanks to structural information gained from single crystal X-ray diffraction measurements, it was possible to propose a mechanistic origin for the observed changes.
引用
收藏
页码：3212 / 3217
页数：6
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