Size-dependent modulation of fluorescence and light scattering: a new strategy for development of ratiometric sensing
Size-dependent modulation of fluorescence and light scattering: a new strategy for development of ratiometric sensing
复制标题
荧光和光散射的尺寸依赖性调制：比例传感发展的新策略
DOI：
10.1039/c7mh00872d
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发表时间：
2018-05
影响因子：
13.3
通讯作者：
Luo Hong Qun
中科院分区：
文献类型：
--
作者：
Liu Shi Gang;Li Na;Han Lei;Li Ling Jie;Li Nian Bing;Luo Hong Qun
利用具有尺寸和形状依赖的物理化学性质的纳米材料可以获得荧光和光散射的同时响应。基于这一原理，我们报道了一种结合荧光和光散射这两种不同且独立的信号来设计比例传感器的新策略。为了在同一激励下同时获得荧光和散射信号，提出了基于荧光、光散射和衍射原理的两种信号采集策略。一种是采集正常（下转换）荧光和二阶散射（SOS）信号，另一种是记录激发波长为λ/2的二阶衍射光激发的荧光（sodl -荧光）和一阶散射（FOS）或倍频散射（FDS）信号。利用碳点（CDs）和氧化钴（CoOOH）纳米片系统对抗坏血酸（AA）进行了概念验证研究。除了构建比例传感器外，结合荧光和散射也可以作为一种有用的技术来监测聚集诱导的荧光猝灭或增强。
Simultaneous response of fluorescence and light scattering can be obtained by using nanomaterials with size- and shape-dependent physiochemical properties. On the basis of this principle, we report a new strategy to design ratiometric sensors by combining fluorescence and light scattering, two different and independent signals. To obtain fluorescence and scattering signals simultaneously under the same excitation, two signal collection strategies are proposed based on the principles of fluorescence, light scattering and diffraction. One is to collect normal (down-conversion) fluorescence and second-order scattering (SOS) signals, and the other is to record the fluorescence excited by the second-order diffraction light of excitation wavelength λ/2 (SODL-fluorescence) and first-order scattering (FOS) or frequency doubling scattering (FDS) signals. A proof of concept study has been performed by using a carbon dots (CDs) and cobalt oxyhydroxide (CoOOH) nanoflakes system for ascorbic acid (AA) sensing. Apart from construction of ratiometric sensors, the combined fluorescence and scattering can also act as a useful technique to monitor aggregation-induced fluorescence quenching or enhancement.
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影响因子：
15
作者：
Wu L;Wu IC;DuFort CC;Carlson MA;Wu X;Chen L;Kuo CT;Qin Y;Yu J;Hingorani SR;Chiu DT
通讯作者：
Chiu DT
影响因子：
7.4
作者：
Gogoi, Abhijit;Mukherjee, Sandipan;Das, Gopal
通讯作者：
Das, Gopal
影响因子：
17.1
作者：
He L;Lu DQ;Liang H;Xie S;Luo C;Hu M;Xu L;Zhang X;Tan W
通讯作者：
Tan W
影响因子：
46.2
作者：
Lee MH;Kim JS;Sessler JL
通讯作者：
Sessler JL
影响因子：
9
作者：
Gan, Zhixing;Wu, Xinglong;Chu, Paul K.
通讯作者：
Chu, Paul K.