Silicon Quantum Dot-Based Fluorescence Turn-On Metal Ion Sensors in Live Cells

2016 ◽  
Vol 8 (36) ◽  
pp. 23953-23962 ◽  
Author(s):  
Namasivayam Dhenadhayalan ◽  
Hsin-Lung Lee ◽  
Kanchan Yadav ◽  
King-Chuen Lin ◽  
Yih-Tyng Lin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Metal Ion ◽  
Live Cells ◽  
Ion Sensors ◽  
Turn On ◽  
Silicon Quantum Dot ◽  
Fluorescence Turn On ◽  
Metal Ion Sensors

Cysteine-based fluorescence “turn-on” sensors for Cu2+ and Ag+

RSC Advances ◽  
2014 ◽  
Vol 4 (99) ◽  
pp. 56539-56542 ◽  
Author(s):  
V. Haridas ◽  
P. P. Praveen Kumar ◽  
Cherumuttathu H. Suresh
Keyword(s):  
Amino Acid ◽  
Computational Methods ◽  
Metal Ion ◽  
Ion Binding ◽  
Metal Ion Binding ◽  
Turn On ◽  
Fluorescence Turn On

Amino acid cysteine was transformed to fluorescent turn-on sensors for Cu+2 and Ag+. The metal ion binding was studied in detail by spectroscopic, microscopic, calorimetric and computational methods.

Fabrication of an “ion-imprinting” dual-emission quantum dot nanohybrid for selective fluorescence turn-on and ratiometric detection of cadmium ions

The Analyst ◽  
2016 ◽  
Vol 141 (20) ◽  
pp. 5886-5892 ◽  
Author(s):  
Jing Wang ◽  
Chenxing Jiang ◽  
Xiaoqi Wang ◽  
Ligeng Wang ◽  
Aimin Chen ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Fluorescence Detection ◽  
Ratiometric Fluorescence ◽  
Dual Emission ◽  
Cadmium Ions ◽  
Turn On ◽  
Ratiometric Detection ◽  
Ion Imprinting ◽  
Fluorescence Turn On

A new CdTe@SiO2@CdSe nanohybrid was demonstrated for the ratiometric fluorescence detection of Cd2+via the turn-on model and “ion-imprinting” technique.

A naphthalimide based PET probe with Fe3+ selective detection ability: theoretical and experimental study

The Analyst ◽  
2014 ◽  
Vol 139 (24) ◽  
pp. 6352-6356 ◽  
Author(s):  
Narendra Reddy Chereddy ◽  
M. V. Niladri Raju ◽  
Peethani Nagaraju ◽  
Venkat Raghavan Krishnaswamy ◽  
Purna Sai Korrapati ◽  
...  
Keyword(s):  
Experimental Study ◽  
Live Cells ◽  
Selective Detection ◽  
Aqueous Samples ◽  
Detection Ability ◽  
Turn On ◽  
Fluorescence Turn On

A naphthalimide based Fe3+ selective fluorescence ‘turn-on’ probe that operates based on a PET mechanism has been synthesized, and its application in the detection of Fe3+ ions in aqueous samples and in live cells is explored.

A highly selective and sensitive fluorescence “turn-on” probe for Ag+ in aqueous solution and live cells

2012 ◽  
Vol 41 (24) ◽  
pp. 7212 ◽  
Author(s):  
Lin Xu ◽  
Yufang Xu ◽  
Weiping Zhu ◽  
Chunmei Yang ◽  
Le Han ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Live Cells ◽  
Turn On ◽  
Fluorescence Turn On

Synthesis of CuxNi(1−x)O coral-like nanostructures and their application in the design of a reusable toxic heavy metal ion sensor based on an adsorption-mediated electrochemical technique

2017 ◽  
Vol 4 (1) ◽  
pp. 191-202 ◽  
Author(s):  
Sayan Dey ◽  
Sumita Santra ◽  
Anupam Midya ◽  
Prasanta Kumar Guha ◽  
Samit Kumar Ray
Keyword(s):  
Heavy Metal ◽  
Detection Limit ◽  
Metal Ion ◽  
High Selectivity ◽  
Heavy Metal Ion ◽  
Electrochemical Technique ◽  
Toxic Heavy Metal ◽  
Ion Sensors ◽  
Metal Ion Sensors ◽  
Very High

Nanostructured, Cu-doped nickel oxides serve as excellent, ultra-fast, re-usable heavy metal ion sensors with an ultra-low detection limit and very high selectivity towards toxic Cr(vi) ions.

Metal Ion Sensors Based on Immobilized Fluorogenic Ligands

2008 ◽  
pp. 63-63-15 ◽  
Author(s):  
WR Seitz ◽  
LA Saari ◽  
Z Zhujun ◽  
S Pokornicki ◽  
RD Hudson ◽  
...  
Keyword(s):  
Metal Ion ◽  
Ion Sensors ◽  
Metal Ion Sensors

scholarly journals Silicon Quantum Dot Light Emitting Diode at 620 nm

Micromachines ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 318 ◽  
Author(s):  
Hiroyuki Yamada ◽  
Naoto Shirahata
Keyword(s):  
Quantum Dot ◽  
High Performance ◽  
Light Emitting Diode ◽  
Optically Active ◽  
Driving Voltage ◽  
Device Structure ◽  
Light Emitting ◽  
Naked Eye ◽  
Turn On ◽  
Silicon Quantum Dot

Here we report a quantum dot light emitting diode (QLED), in which a layer of colloidal silicon quantum dots (SiQDs) works as the optically active component, exhibiting a strong electroluminescence (EL) spectrum peaking at 620 nm. We could not see any fluctuation of the EL spectral peak, even in air, when the operation voltage varied in the range from 4 to 5 V because of the possible advantage of the inverted device structure. The pale-orange EL spectrum was as narrow as 95 nm. Interestingly, the EL spectrum was narrower than the corresponding photoluminescence (PL) spectrum. The EL emission was strong enough to be seen by the naked eye. The currently obtained brightness (∼4200 cd/m2), the 0.033% external quantum efficiency (EQE), and a turn-on voltage as low as 2.8 V show a sufficiently high performance when compared to other orange-light-emitting Si-QLEDs in the literature. We also observed a parasitic emission from the neighboring compositional layer (i.e., the zinc oxide layer), and its intensity increased with the driving voltage of the device.

Cross-sensitive rare earth metal ion sensors based on extraction systems

2008 ◽  
Vol 131 (1) ◽  
pp. 29-36 ◽  
Author(s):  
A.V. Legin ◽  
V.A. Babain ◽  
D.O. Kirsanov ◽  
O.V. Mednova
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Metal Ion ◽  
Earth Metal ◽  
Ion Sensors ◽  
Metal Ion Sensors
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