A reagent system and method for modifying the luminescence...

C - Chemistry – Metallurgy – 09 – K

Patent

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Details

C09K 11/77 (2006.01) C12Q 1/00 (2006.01) C12Q 1/68 (2006.01) G01N 21/76 (2006.01) G01N 33/52 (2006.01)

Patent

CA 2545066

Disclosed is a spectrofluorimetrically detectable luminescent composition consisting essentially of at least one energy transfer acceptor lanthanide(III) complex having an emission spectrum maximum in the range from 300 to 2000 nanometers and a luminescence-enhancing amount of at least one energy transfer donor selected from the group consisting of a fluorophore, a lumiphore, an organic compound, a salt of an organic ion, a metal ion, a metal ion complex, or a combination thereof. Such energy transfer donor enhances the luminescence of at least one energy transfer acceptor lanthanide(III) complex, with the conditions that the emission spectrum of any energy transfer donor differs from that of its energy transfer acceptor lanthanide(III) complex; and such energy transfer donor can be dissolved to form a unitary solution in a solvent having an evaporation rate at least as great as that of water.

L'invention concerne une composition luminescente détectable par spectrofluorimétrie, contenant essentiellement au moins un complexe de lanthanide (III) accepteur de transfert d'énergie possédant un spectre d'émission maximum variant de 300 à 2000 nanomètres et une quantité améliorant la luminescence d'au moins un donneur de transfert d'énergie sélectionné dans le groupe comprenant un fluorophore, un lumiphore, un composé organique, un sel d'ion organique, un ion métallique, un complexe d'ions métalliques, ou une combinaison de ceux-ci. Ledit donneur de transfert d'énergie améliore la luminescence d'au moins un complexe de lanthanide (III) accepteur de transfert d'énergie, à condition que le spectre d'émission d'un quelconque donneur de transfert d'énergie diffère de celui du complexe de lanthanide (III) accepteur de transfert d'énergie correspondant. Ledit donneur de transfert d'énergie peut être dissous pour former une solution unitaire dans un solvant présentant un taux d'évaporation au moins aussi grand que celui de l'eau.

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