A protein-supported fluorescent reagent for the highly-sensitive and selective detection of mercury ions in aqueous solution and live cells

2008 ◽  
pp. 6345 ◽  
Author(s):  
Li-Jun Ma ◽  
Yue Li ◽  
Lei Li ◽  
Jian Sun ◽  
Chunjuan Tian ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Live Cells ◽  
Selective Detection ◽  
Mercury Ions ◽  
Highly Sensitive

Cellular membrane-anchored fluorescent probe with aggregation-induced emission characteristics for selective detection of Cu2+ ions

2017 ◽  
Vol 196 ◽  
pp. 377-393 ◽  
Author(s):  
Danni Liu ◽  
Shenglu Ji ◽  
Heran Li ◽  
Liang Hong ◽  
Deling Kong ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Cell Membrane ◽  
Water Solubility ◽  
Live Cells ◽  
Probe Design ◽  
Specific Cell ◽  
Selective Detection ◽  
High Concentration ◽  
Aggregation Induced Emission ◽  
Emissive Probes

The exploration of advanced fluorescent probes that can detect divalent copper (Cu2+) in aqueous environments and even in live organisms is particularly valuable for understanding the occurrence and development of Cu2+-related diseases. In this work, we report the design and synthesis of an aggregation-induced emission luminogen (AIEgen)-based probe (TPE-Py-EEGTIGYG) by integrating an AIEgen, TPE-Py, with a peptide, EEGTIGYG, which can selectively detect Cu2+ in both aqueous solution and live cells. Peptide EEGTIGYG has dual functionality in the probe design, namely improving water solubility and providing specific cell membrane-binding ability. TPE-Py-EEGTIGYG can self-assemble into nanoaggregates at high concentration in aqueous solution (e.g., 25 μM), which possess large fluorescence output due to the restriction of intramolecular rotation of the phenyl rings on TPE-Py. The fluorescence of the TPE-Py-EEGTIGYG nanoaggregates can be significantly quenched by Cu2+ but not by other metal ions, achieving the selective detection of Cu2+ in aqueous media. Furthermore, TPE-Py-EEGTIGYG can exist as a molecular species and is very weakly fluorescent in dilute aqueous solution (e.g., 5 μM), but can however largely switch on its fluorescence upon specifically anchoring onto the cell membrane. The emissive probes on the cell membrane can be used for the detection of Cu2+ ions that move in and out of cells with a fluorescence “turn-off” mode.

Target induced aggregation of modified Au@Ag nanoparticles for surface enhanced Raman scattering and its ultrasensitive detection of arsenic(iii) in aqueous solution

RSC Advances ◽  
2015 ◽  
Vol 5 (95) ◽  
pp. 77755-77759 ◽  
Author(s):  
Bo Yang ◽  
Xiaochun Chen ◽  
Renyong Liu ◽  
Bianhua Liu ◽  
Changlong Jiang
Keyword(s):  
Aqueous Solution ◽  
Spectroscopic Technique ◽  
Ultrasensitive Detection ◽  
Selective Detection ◽  
Raman Spectroscopic ◽  
Highly Sensitive ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Induced Aggregation

A highly sensitive and selective detection of As(iii) was reported by target induced aggregation of nanoparticles enhanced Raman spectroscopic technique.

Highly sensitive and selective detection of silver(i) in aqueous solution with silver(i)-specific DNA and Sybr green I

The Analyst ◽  
2013 ◽  
Vol 138 (7) ◽  
pp. 2057 ◽  
Author(s):  
Qing Yang ◽  
Fan Li ◽  
Yan Huang ◽  
Hui Xu ◽  
Linsheng Tang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Sybr Green ◽  
Sybr Green I ◽  
Selective Detection ◽  
Highly Sensitive

Highly sensitive and selective detection of mercury ions based on up-conversion FRET from NaYF4:Yb3+/Er3+ nanophosphors to CdTe quantum dots

RSC Advances ◽  
2015 ◽  
Vol 5 (120) ◽  
pp. 99099-99106 ◽  
Author(s):  
Shaobo Cui ◽  
Sai Xu ◽  
Hongwei Song ◽  
Wen Xu ◽  
Xu Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Environmental Problems ◽  
Cdte Quantum Dots ◽  
Selective Detection ◽  
Mercury Ions ◽  
Highly Sensitive

The detection of Hg2+ has attracted considerable attention because of the serious health and environmental problems caused by it.

Highly Sensitive and Selective Detection of Norfloxacin in Aqueous Solution Using Carbon Based Nanomaterial

2018 ◽  
Vol 8 (12) ◽  
pp. 1719-1724
Author(s):  
Kunjie Wang ◽  
Qiuyun Shi ◽  
Qingjuan Ji ◽  
Hongxia Li ◽  
Deyi Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Selective Detection ◽  
Highly Sensitive ◽  
Carbon Based

Simple naphthalimide-based fluorescent sensor for highly sensitive and selective detection of Cd2+and Cu2+in aqueous solution and living cells

2013 ◽  
Vol 42 (5) ◽  
pp. 1827-1833 ◽  
Author(s):  
Wei Wang ◽  
Qian Wen ◽  
Yue Zhang ◽  
Xiaoliang Fei ◽  
Yaoxian Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fluorescent Sensor ◽  
Living Cells ◽  
Selective Detection ◽  
Highly Sensitive
Sign in / Sign up

Export Citation Format

Share Document