Journal ArticleDOI
Metal coordination in photoluminescent sensing
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TLDR
The design principles and coordination chemistry of metal probes based on mechanisms of PeT, PCT, ESIPT, FRET, and excimer formation will be discussed in detail, with particular attention given to rationales for the design of turn-on and ratiometric probes.Abstract:
Coordination chemistry plays an essential role in the design of photoluminescent probes for metal ions. Metal coordination to organic dyes induces distinct optical responses which signal the presence of metal species of interest. Luminescent lanthanide (Ln(3+)) and transition metal complexes of d(6), d(8) and d(10) configurations often exhibit unique luminescence properties different from organic dyes, such as high quantum yield, large Stokes shift, long emission wavelength and emission lifetimes, low sensitivity to microenvironments, and can be explored as lumophores to construct probes for metal ions, anions and neutral species. In this review, the design principles and coordination chemistry of metal probes based on mechanisms of PeT, PCT, ESIPT, FRET, and excimer formation will be discussed in detail. Particular attention will be given to rationales for the design of turn-on and ratiometric probes. Moreover, phosphorescent probe design based on Ln(3+) and d(6), d(8) and d(10)-metal complexes are also presented via discussing certain factors affecting the phosphorescence of these metal complexes. A survey of the latest progress in photoluminescent probes for identification of essential metal cations in the human body or toxic metal cations in the environment will be presented focusing on their design rationales and sensing behaviors. Metal complex-based photoluminescent probes for biorelated anions such as PPi, and neutral biomolecules ATP, NO, and H(2)S will be discussed also in the context of their metal coordination-related sensing behaviors and design approaches.read more
Citations
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References
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Visualization of Nitroxyl in Living Cells by a Chelated Copper(II) Coumarin Complex
TL;DR: The coumarin-based probe Cu(II)-COT1 was successfully developed for the detection of HNO on the basis of the reduction reaction and highly selective "turn on" type fluorogenic behavior upon the addition of Angeli's salt was also applied to bioimaging in A375 cells.
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A highly selective luminescent sensor for the time-gated detection of potassium.
Aurore Thibon,Valérie C. Pierre +1 more
TL;DR: A terbium complex with long luminescence lifetime for the selective time-gated detection of potassium is presented, and high selectivity of the complex for potassium over other physiological cations, and especially sodium (93 fold).
Journal ArticleDOI
DPA-substituted coumarins as chemosensors for zinc(II): modulation of the chemosensory characteristics by variation of the position of the chelate on the coumarin
TL;DR: The sensory capabilities of two novel di(2-picolyl)amine (DPA)-substituted coumarins are described and it is shown that the variation of the point of attachment of the DPA group to the coumarin framework controls their sensing behavior.
Journal ArticleDOI
Rational design of a dual chemosensor for cyanide anion sensing based on dicyanovinyl-substituted benzofurazan.
TL;DR: A dicyanovinyl-substituted benzofurazan derivative was prepared as an efficient ratiometric chemosensor for cyanide anion detection in aqueous acetonitrile solution and induced remarkable emission and absorption shift.
Journal ArticleDOI
A new selective chromogenic and turn-on fluorogenic probe for copper(II) in water-acetonitrile 1:1 solution.
Eduardo Ballesteros,Daniel Moreno,Teresa Mingo Gómez,Teresa Rodríguez,Josefa Rojo,María García-Valverde,Tomás Torroba +6 more
TL;DR: A quinoline-indene derivative is described as a new highly selective and sensitive chromogenic and turn-on fluorogenic probe for the naked-eye detection of copper(II) cation in water-acetonitrile 1:1 mixture.