Förster Resonance Energy Transfer-Enhanced Detection of Minute Amounts of DNA.
Anal Chem
; 94(12): 5062-5068, 2022 03 29.
Article
em En
| MEDLINE
| ID: mdl-35286067
ABSTRACT
This article presents a novel approach to increase the detection sensitivity of trace amounts of DNA in a sample by employing Förster resonance energy transfer (FRET) between intercalating dyes. Two intercalators that present efficient FRET were used to enhance sensitivity and improve specificity in detecting minute amounts of DNA. Comparison of steady-state acceptor emission spectra with and without the donor allows for simple and specific detection of DNA (acceptor bound to DNA) down to 100 pg/µL. When utilizing as an acceptor a dye with a significantly longer lifetime (e.g., ethidium bromide bound to DNA), multipulse pumping and time-gated detection enable imaging/visualization of picograms of DNA present in a microliter of an unprocessed sample or DNA collected on a swab or other substrate materials.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transferência Ressonante de Energia de Fluorescência
/
Substâncias Intercalantes
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article