| Literature DB >> 15986150 |
Niko J Meltola1, Jonne Vaarno, Aleksi E Soini.
Abstract
Five two-photon excitable dipyrrylmetheneboron difluoride labels (dipyrrylmethene-BF(2) labels) with fluorescence emission maximum between 530 and 590 nm, and a frequently used rhodamine label, TAMRA, were conjugated to aminomodified oligonucleotides. The performance of the labeled oligonucleotides was studied in a separation-free nucleic acid hybridization assay using ArcDia TPX bioaffinity assay technology. The results show that oligonucleotide conjugates of dipyrrylmethene-BF(2) labels provide higher two-photon excited fluorescence yield and better assay sensitivity than corresponding TAMRA conjugate. The effect of conjugation on photophysical properties of the labels and performance of the labeled oligonucleotides in separation-free hybridization assay is discussed.Entities:
Year: 2005 PMID: 15986150 DOI: 10.1007/s10895-005-2623-2
Source DB: PubMed Journal: J Fluoresc ISSN: 1053-0509 Impact factor: 2.217