dsDNA-triggered energy transfer and lanthanide sensitization processes. Luminescent probing of specific A/T sequences.

نویسندگان

  • Olalla Vázquez
  • Mateo I Sánchez
  • José L Mascareñas
  • M Eugenio Vázquez
چکیده

Orthogonal attachment of a DOTA[Ln(3+)] complex or a coumarin fluorophore to appropriately functionalized bis-4-aminobenzamidines yields compounds that experience A/T-selective, dsDNA-dependent energy transfer processes, and elicit long wavelength emission of light.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Hydrophobic chromophore cargo in micellar structures: a different strategy to sensitize lanthanide cations.

We propose a new approach for the versatile sensitization of luminescent lanthanide cations. A hydrophobic chromophore is incorporated into a micellar assembly formed by the amphiphilic lanthanide chelate. The sensitizer to lanthanide energy transfer occurs between the two moieties without covalent linkage.

متن کامل

Coupling the folding of a β-hairpin with chelation-enhanced luminescence of Tb(III) and Eu(III) ions for specific sensing of a viral RNA†

Rational modification of a natural RNA-binding peptide with a lanthanide EDTA chelator, and a phenanthroline ligand yields a highly selective luminescent sensor. The sensing mechanism relies on the RNA-triggered folding of the peptide into a β-hairpin, which promotes the coordination of the phenanthroline sensitizer, and the efficient sensitization of complexed lanthanide ions.

متن کامل

Lanthanide-Activated Phosphors Based on 4f-5d Optical Transitions: Theoretical and Experimental Aspects.

The synthesis of lanthanide-activated phosphors is pertinent to many emerging applications, ranging from high-resolution luminescence imaging to next-generation volumetric full-color display. In particular, the optical processes governed by the 4f-5d transitions of divalent and trivalent lanthanides have been the key to enabling precisely tuned color emission. The fundamental importance of lant...

متن کامل

A self-assembled, luminescent europium cholate hydrogel: a novel approach towards lanthanide sensitization.

We propose a new self-assembly based strategy for the design of novel lanthanide based luminescent materials. In this approach a europium hydrogel is prepared and sensitization is achieved by doping the gel with pyrene in a non-coordinated fashion.

متن کامل

Quantum yields of luminescent lanthanide chelates and far-red dyes measured by resonance energy transfer.

Luminescent lanthanide chelates have unusual spectroscopic characteristics that make them valuable alternative probes to conventional organic fluorophores. However, fundamental parameters such as their quantum yield, and radiative and nonradiative decay rates have been difficult or impossible to measure. We have developed a simple and robust method based on resonance energy transfer to accurate...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Chemical communications

دوره 46 30  شماره 

صفحات  -

تاریخ انتشار 2010