A ratiometric fluorescent probe with high sensitivity and selectivity for phosgene sensing in solution and gas

2020 ◽  
Vol 67 (7) ◽  
pp. 1213-1218 ◽  
Author(s):  
Wu Zhou ◽  
Qian Chen ◽  
Aibin Wu ◽  
Ying Zhang ◽  
Weichu Yu
2020 ◽  
Vol 44 (11) ◽  
pp. 4554-4557 ◽  
Author(s):  
Shaohui Han ◽  
Xiuxiu Yue ◽  
Jingpei Wang ◽  
Yun Zhang ◽  
Benhua Wang ◽  
...  

A novel near-infrared ratiometric fluorescent probe MQC (λem = 715 nm) for SO2 detection was developed with a large emission shift (245 nm) and high sensitivity and selectivity.


2021 ◽  
Author(s):  
Yanan Ma ◽  
Xiaoping Yang ◽  
Zhiyin Xiao ◽  
Xiaoming Liu ◽  
Dongliang Shi ◽  
...  

One 18-metal Eu(III) nanoring (sizes: 1.0 × 2.7 × 2.7 nm) was constructed as a rapid ratiometric fluorescent probe for the detection of dipicolinic acid with high sensitivity and selectivity,...


2019 ◽  
Vol 7 (3) ◽  
pp. 443-450 ◽  
Author(s):  
Qian Zhang ◽  
Shasha Li ◽  
Caixia Fu ◽  
Yuzhe Xiao ◽  
Peng Zhang ◽  
...  

A NIR ratiometric fluorescent probe based on cyanine dye was developed for detecting and intracellular imaging of ALP activity with high sensitivity.


2014 ◽  
Vol 50 (63) ◽  
pp. 8677 ◽  
Author(s):  
Yongqian Xu ◽  
Benhao Li ◽  
Liangliang Xiao ◽  
Jia Ouyang ◽  
Shiguo Sun ◽  
...  

The Analyst ◽  
2020 ◽  
Vol 145 (6) ◽  
pp. 2305-2310 ◽  
Author(s):  
Ruqiao Zhou ◽  
Guiling Cui ◽  
Qingrong Qi ◽  
Wencai Huang ◽  
Li Yang

Hydrogen sulfide (H2S), a well-known poisonous gas, has been recognized as a critical endogenous gas transmitter in the past decade.


2019 ◽  
Vol 48 (38) ◽  
pp. 14408-14417 ◽  
Author(s):  
Xubin Zheng ◽  
Ruiqing Fan ◽  
Haoyang Lu ◽  
Bowen Wang ◽  
Jingkun Wu ◽  
...  

A fluorescent probe designed and prepared through postsynthetic modification (PSM) showed high sensitivity and selectivity for N-methylformamide (NMF) in urine and methylglyoxal (MGO) in serum.


Cancers ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 470 ◽  
Author(s):  
Surendra Punganuru ◽  
Hanumantha Madala ◽  
Viswanath Arutla ◽  
Kalkunte Srivenugopal

Human NAD(P)H quinone oxidoreductase-1 (hNQO1) is an important cancer-related biomarker, which shows significant overexpression in malignant cells. Developing an effective method for detecting NQO1 activity with high sensitivity and selectivity in tumors holds a great potential for cancer diagnosis, treatment, and management. In the present study, we report a new dicyanoisophorone (DCP) based fluorescent probe (NQ-DCP) capable of monitoring hNQO1 activity in vitro and in vivo in both ratiometric and turn-on model. NQ-DCP was prepared by conjugating dicyanoisophorone fluoroprobe with hNQO1 activatable quinone propionic acid (QPA), which remain non-fluorescent until activation by tumor-specific hNQO1. NQ-DCP featured a large Stokes shift (145 nm), excellent biocompatibility, cell permeability, and selectivity towards hNQO1 allowed to differentiate cancer cells from healthy cells. We have successfully employed NQ-DCP to monitor non-invasive endogenous hNQO1 activity in brain tumor cells in vitro and in xenografted tumors developed in nude mice.


RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13438-13443 ◽  
Author(s):  
Jiao Liu ◽  
Hong-Wei Li ◽  
Yuqing Wu

The ultrabright AuNCs@AMP are used as fluorescence probe to detect lactate dehydrogenase (LDH) with high sensitivity and selectivity, showing an extremely low detection limit of 0.2 nM (26 pg μL−1, 0.8 U L−1).


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