A water soluble ratiometric fluorescent probe for targeting SO2 in mitochondria based on conjugated biquinolines

2020 ◽  
Vol 44 (46) ◽  
pp. 20235-20240
Author(s):  
Jialu Yang ◽  
Caixia Yin ◽  
Kaiqing Ma ◽  
Yongkang Yue ◽  
Fangjun Huo

Despite the unprecedented development of SO2 fluorescent probes in the past five years, the water-solubility of these probes is still an important factor related to their practical application.

2016 ◽  
Vol 52 (16) ◽  
pp. 3430-3433 ◽  
Author(s):  
Yu Liu ◽  
Kun Li ◽  
Ke-Xin Xie ◽  
Ling-Ling Li ◽  
Kang-Kang Yu ◽  
...  

A novel mitochondria-targeted ratiometric fluorescent probe for colorimetric and ratiometric sensing of endogenously generated SO2 derivatives is presented, with a perfect combination of water-solubility and reactivity.


2020 ◽  
Vol 12 (11) ◽  
pp. 1514-1521
Author(s):  
Yi Zhang ◽  
Liangping Tu ◽  
Lingling Lu ◽  
Yuxiao Li ◽  
Linjiang Song ◽  
...  

Difluoroboron-complexed curcumin was developed as a colorimetric and ratiometric fluorescent probe for HSO3− with high selectivity and sensitivity.


2016 ◽  
Vol 26 (6) ◽  
pp. 2079-2086 ◽  
Author(s):  
Guang-Jie Song ◽  
Su-Yun Bai ◽  
Jing Luo ◽  
Xiao-Qun Cao ◽  
Bao-Xiang Zhao

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Mingyang Liu ◽  
Xuejun Du ◽  
Ke Xu ◽  
Binwei Yan ◽  
Zaibi Fan ◽  
...  

AbstractBerberine hydrochloride (BH) is an isoquinoline alkaloid normally used as drug to treat diseases. Compared with the traditional detection methods, the carbon quantum dots (CQDs) have better selectivity, high sensitivity, easy operation, and is inexpensive which could be widely utilized as fluorescent nanoprobes to detect various compounds quantificationally. And ratiometric fluorescent sensors conspicuously increase sensitivity and precision detection and improve quantification. In this work, we use water-soluble and fluorescent cationic carbon dots cetylpyridinium chloride monohydrate (CPC)-CQDs to connect with pinacyanol chloride (PC) and sodium tetraphenylborate (ST) as the ratiometric fluorescent probe to detect BH. The ratiometric fluorescent probe has high sensitivity towards alkaloids and metal ions, photochemical stability (60 min), and pH stability (from 6.0 to 8.0), with the detection range from 0 to 200 μM, and limit was as low as 57.35 nM. The accuracy of the method was verified by spiked recovery experiment in different human blood serums which were drawn from healthy adult volunteers to explore the practicability. The recoveries were in the range 94.34 to 105.48% with relative standard deviations (RSD) of 0.80 to 2.92%. In addition, we could observe that the fluorescence was gradually darkened, and the color turned yellow to realize the visual detection. It is expected that this work would open up a new strategy for detecting BH in the environment and human blood serums.


2015 ◽  
Vol 44 (21) ◽  
pp. 9740-9743 ◽  
Author(s):  
Shenyi Zhang ◽  
Mei Zhao ◽  
Weiping Zhu ◽  
Yufang Xu ◽  
Xuhong Qian

A novel fluorescent probe, E3, was designed, synthesized and evaluated. It responded to Co2+ with high selectivity and sensitivity under physiological neutral conditions specifically. Furthermore, notably, probe E3 was demonstrated to detect Co2+ in living cells, indicative of its practical application potential.


2016 ◽  
Vol 40 (3) ◽  
pp. 2333-2342 ◽  
Author(s):  
Qunbo Mei ◽  
Ruqiang Tian ◽  
Yujie Shi ◽  
Qingfang Hua ◽  
Chen Chen ◽  
...  

Different types of fluorescent probes for Hg2+ based on the 5-thiophen-2-yl-benzothiazole derivatives (TBT, CTBT, DTBT and NTBT) were realized by changing the subsituents, including the fluorescence quenching probe, the fluorescence enhancement probe and the ratiometric fluorescent probe.


2019 ◽  
Vol 7 (47) ◽  
pp. 7566-7573 ◽  
Author(s):  
Yiting Wang ◽  
Na Wu ◽  
Fengna Guo ◽  
Ruixue Gao ◽  
Ting Yang ◽  
...  

By using BCNNS as a nanocarrier, a fluorescence quencher and an interior label, and using CuNC-labeled hairpin DNA for dual-signal output, a dual-emission ratiometric fluorescent probe was fabricated for the measurement of intracellular miRNA.


2018 ◽  
Vol 6 (4) ◽  
pp. 773-780 ◽  
Author(s):  
Zhijun Ruan ◽  
Yuanrong Shan ◽  
Yanbin Gong ◽  
Can Wang ◽  
Fabing Ye ◽  
...  

Novel thioketal-containing AIEgens were designed as a ratiometric fluorescent probe for Hg2+, which also showed a reversible mechanochromic property.


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