A near-infrared, colorimetric and ratiometric fluorescent sensor with high sensitivity to hydrogen peroxide and viscosity for solutions detection and imaging living cells

2021 ◽  
pp. 105513
Author(s):  
Daili Liu ◽  
Gaofei Chen ◽  
Guiqian Fang
Keyword(s):  
Hydrogen Peroxide ◽  
Near Infrared ◽  
Fluorescent Sensor ◽  
High Sensitivity ◽  
Living Cells

A phthalocyanine-based fluorescent sensor for Zn2+ ion

2013 ◽  
Vol 17 (01n02) ◽  
pp. 99-103 ◽  
Author(s):  
Hui He ◽  
Jian-Yong Liu ◽  
Dennis K.P. Ng
Keyword(s):  
Metal Ions ◽  
Spectral Properties ◽  
Fluorescence Spectra ◽  
Near Infrared ◽  
Fluorescent Sensor ◽  
High Sensitivity ◽  
Absorption And Fluorescence Spectra

This paper describes the preparation and spectral properties of a near-infrared fluorophore in which two bis(2-picolyl)amino moieties are axially linked to a silicon(IV) phthalocyanine core. The effects of various metal ions on its absorption and fluorescence spectra have been examined. The results indicate that this compound shows a high sensitivity and moderate selectivity toward Zn2+ ion.

A reaction-based near-infrared fluorescent sensor for Cu2+ detection in aqueous buffer and its application in living cells and tissues imaging

2017 ◽  
Vol 94 ◽  
pp. 24-29 ◽  
Author(s):  
Huatang Zhang ◽  
Ling Feng ◽  
Yin Jiang ◽  
Yin-Ting Wong ◽  
Yonghe He ◽  
...  
Keyword(s):  
Near Infrared ◽  
Fluorescent Sensor ◽  
Living Cells ◽  
Aqueous Buffer

A NIR fluorescent sensor for biothiols based on a dicyanoisophorone derivative with a large Stokes shift and high quantum yield

2019 ◽  
Vol 43 (24) ◽  
pp. 9614-9622
Author(s):  
Ming Qian ◽  
Liuwei Zhang ◽  
Jingyun Wang
Keyword(s):  
Quantum Yield ◽  
Fluorescent Sensor ◽  
Stokes Shift ◽  
High Sensitivity ◽  
Living Cells ◽  
Rapid Response ◽  
High Quantum Yield ◽  
Large Stokes Shift ◽  
High Quantum ◽  
Nir Fluorescence

Probe N-Bio exhibited rapid response, high sensitivity and strong NIR fluorescence in the detection of biothiols in living cells.

A near-infrared fluorescent aza-bodipy probe for dual-wavelength detection of hydrogen peroxide in living cells

The Analyst ◽  
2016 ◽  
Vol 141 (8) ◽  
pp. 2380-2383 ◽  
Author(s):  
Jingjing Xu ◽  
Jingying Zhai ◽  
Yanmei Xu ◽  
Jingwei Zhu ◽  
Yu Qin ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Boronic Acid ◽  
Near Infrared ◽  
High Selectivity ◽  
Living Cells ◽  
Dual Wavelength ◽  
Biological Processes ◽  
Wavelength Detection ◽  
Intracellular Hydrogen Peroxide

A boronic acid functionalized aza-borondipyrromethene dye (azaBDPBA) was applied to the dual-wavelength detection of hydrogen peroxide with high selectivity, which was loaded into cells to indicate the alteration of intracellular hydrogen peroxide during biological processes.

scholarly journals A Red Emissive Fluorescent Turn-on Sensor for the Rapid Detection of Selenocysteine and Its Application in Living Cells Imaging

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4768 ◽  
Author(s):  
Zongcheng Wang ◽  
Huihuang Zheng ◽  
Chengliang Zhang ◽  
Dongfang Tang ◽  
Qiyao Wu ◽  
...  
Keyword(s):  
Fluorescent Sensor ◽  
High Sensitivity ◽  
Living Cells ◽  
Fluorescent Sensors ◽  
Quantitative Detection ◽  
Fast Reaction ◽  
Detection Range ◽  
Long Wavelength ◽  
Turn On

The content of selenocysteine in cells has an important effect on a variety of human diseases, and the detection of selenocysteine by fluorescent sensors in vivo has shown many advantages. In order to further develop fast-reaction-time, good-selectivity, and high-sensitivity long-wavelength selenocysteine fluorescent sensors, we designed and synthesized the compound YZ-A4 as a turn-on fluorescent sensor to detect the content of selenocysteine. The quantitative detection range of the sensor YZ-A4 to selenocysteine was from 0 to 32 μM, and the detection limit was as low as 11.2 nM. The sensor displayed a rapid turn-on response, good selectivity, and high sensitivity to selenocysteine. Finally, we have demonstrated that YZ-A4 could be used for fluorescence imaging of selenocysteine in living cells.

scholarly journals A Novel Fluorescent Probe for Hydrogen Peroxide and Its Application in Bio-Imaging

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3352
Author(s):  
Yingying Zuo ◽  
Yang Jiao ◽  
Chunming Ma ◽  
Chunying Duan
Keyword(s):  
Hydrogen Peroxide ◽  
Fluorescent Probe ◽  
Human Body ◽  
Fluorescence Enhancement ◽  
Fluorescent Sensor ◽  
Living Cells ◽  
Promising Tool ◽  
Bio Imaging ◽  
Good Biocompatibility ◽  
The Relationship

Hydrogen peroxide (H2O2) plays an important role in the human body and monitoring its level is meaningful due to the relationship between its level and diseases. A fluorescent sensor (CMB) based on coumarin was designed and its ability for detecting hydrogen peroxide by fluorescence signals was also studied. The CMB showed an approximate 25-fold fluorescence enhancement after adding H2O2 due to the interaction between the CMB and H2O2 and had the potential for detecting physiological H2O2. It also showed good biocompatibility and permeability, allowing it to penetrate cell membranes and zebrafish tissues, thus it can perform fluorescence imaging of H2O2 in living cells and zebrafish. This probe is a promising tool for monitoring the level of H2O2 in related physiological and pathological research.

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