Evidence map›Paper›PMID 17169999›Full record

ArticleNucleic acids research2007

Increasing the sensitivity of DNA microarrays by metal-enhanced fluorescence using surface-bound silver nanoparticles.

Chandran R Sabanayagam, Joseph R Lakowicz

Open access · goldAbstract readEvaluation Study
In one paragraph

Article in Nucleic acids research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
3.4field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 87 citations in OpenAlex.

  1. Article
  2. Review
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  15. Plasmon-controlled fluorescence towards high-sensitivity optical sensing.Advances in biochemical engineering/biotechnology · 2009
    Review
  16. Article
  17. Enhanced fluorescence images for labeled cells on silver island films.Langmuir : the ACS journal of surfaces and colloids · 2008
    Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

2 authors at 1 institution in 1 country.

Chandran R SabanayagamDepartment of Biochemistry and Molecular Biology, Center for Fluorescence Spectroscopy, University of Maryland School of Medicine, 725 West Lombard Street, Baltimore, MD 21201, USA. chandran@cfs.umbi.umd.edu
Joseph R Lakowicz
University of Maryland, Baltimore · US

Funding

WHO'S WHO IN FLUORESCENCEP41RR008119 · NCRR · UNIVERSITY OF MARYLAND BALTIMORE · PI BASKAKOV, ILIA V · 1993 to 2006
$7.4M
Metallic Surfaces and Particles in DNA AnalysisR01HG002655 · NHGRI · UNIVERSITY OF MARYLAND BALTIMORE · PI LAKOWICZ, JOSEPH R. · 2003 to 2012
$2.8M
NCRR NIH HHS P41 RR008119NCRR NIH HHS RR08119NHGRI NIH HHS HG002655NHGRI NIH HHS R01 HG002655
6 · The paper itself

Abstract

The effects of metal-enhanced fluorescence (MEF) have been measured for two dyes commonly used in DNA microarrays, Cy3 and Cy5. Silver island films (SIFs) grown on glass microscope slides were used as substrates for MEF DNA arrays. We examined MEF by spotting biotinylated, singly-labeled 23 bp DNAs onto avidin-coated SIF substrates. The fluorescence enhancement was found to be dependent on the DNA spotting concentration: below approximately 12.5 muM, MEF increased linearly, and at higher concentrations MEF remained at a constant maximum of 28-fold for Cy5 and 4-fold for Cy3, compared to avidin-coated glass substrates. Hybridization of singly-labeled oligonucleotides to arrayed single-stranded probes showed lower maximal MEF factors of 10-fold for Cy5 and 2.5-fold for Cy3, because of the smaller amount of immobilized fluorophores as a result of reduced surface hybridization efficiencies. We discuss how MEF can be used to increase the sensitivity of DNA arrays, especially for far red emitting fluorophores like Cy5, without significantly altering current microarray protocols.

Indexed as

CarbocyaninesFluorescent DyesGlassNanoparticlesOligonucleotide Array Sequence AnalysisOligonucleotide ProbesPhotobleachingSilverCarbocyaninescyanine dye 3cyanine dye 5Fluorescent DyesOligonucleotide ProbesSilver

Identifiers

PMID17169999
PMCPMC1802600
OpenAlexW2107330613

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.