Evidence map›Paper›PMID 23330780›Full record

ArticleAnalytical chemistry2013

Silver clusters as both chromophoric reporters and DNA ligands.

Jeffrey T Petty, Banabihari Giri, Ian C Miller, David A Nicholson, Orlin O Sergev, Taylor M Banks, Sandra P Story

Open access · greenAbstract read
In one paragraph

Article in Analytical chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 53 citations in OpenAlex.

  1. Review
  2. Article
  3. Interrupted DNA and Slow Silver Cluster Luminescence.The journal of physical chemistry. C, Nanomaterials and interfaces · 2023
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. DNA-Protected Silver Clusters for Nanophotonics.Nanomaterials (Basel, Switzerland) · 2015
    Review
  17. DNA-Directed Fluorescence Switching of Silver Clusters.The journal of physical chemistry. C, Nanomaterials and interfaces · 2015
    Article
  18. Article
  19. Article
  20. A silver cluster-DNA equilibrium.Analytical chemistry · 2013
    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

7 authors at 1 institution in 1 country.

Jeffrey T PettyDepartment of Chemistry, Furman University, Greenville, South Carolina 29613, United States. jeff.petty@furman.edu
Banabihari Giri
Ian C Miller
David A Nicholson
Orlin O Sergev
Taylor M Banks
Sandra P Story
Furman University · US

Funding

The Effect of Water on Sequence Specific DNA RecognitionR15GM071370 · NIGMS · FURMAN UNIVERSITY · PI PETTY, JEFFREY T · 2004 to 2004
$215k
DNA-Silver Cluster Complexes for Fluorescent DiagnosticsR15GM084442 · NIGMS · FURMAN UNIVERSITY · PI PETTY, JEFFREY THOMAS · 2008 to 2008
$215k
Howard Hughes Medical InstituteNIGMS NIH HHS R15 GM071370NIGMS NIH HHS R15GM071370NIGMS NIH HHS R15 GM084442
6 · The paper itself

Abstract

Molecular silver clusters conjugated with DNA act as analyte sensors. Our studies evaluate a type of cluster-laden DNA strand whose structure and silver stoichiometry change with hybridization. The sensor strand integrates two functions: the 3' region binds target DNA strands through base recognition while the 5' sequence C(3)AC(3)AC(3)TC(3)A favors formation of a near-infrared absorbing and emitting cluster. This precursor form exclusively harbors an ∼11 silver atom cluster that absorbs at 400 nm and that condenses its single-stranded host. The 3' recognition site associates with a complementary target strand, thereby effecting a 330 nm red-shift in cluster absorption and a background-limited recovery of cluster emission at 790 nm. One factor underlying these changes is sensor unfolding and aggregation. Variations in salt and oligonucleotide concentrations control cluster development by influencing DNA association. Structural studies using fluorescence anisotropy, fluorescence correlation spectroscopy, and size exclusion chromatography show that the sensor-cluster conjugate opens and subsequently dimerizes with hybridization. A second factor contributing to the spectral and photophysical changes is cluster transformation. Empirical silver stoichiometries are preserved through hybridization, so hybridized, dimeric near-infrared conjugates host twice the amount of silver in relation to their violet absorbing predecessors. These DNA structure and net silver stoichiometry alterations provide insight into how DNA-silver conjugates recognize analytes.

Indexed as

Spectrometry, FluorescenceDNALigandsNucleic Acid HybridizationOligonucleotidesSilverDNALigandsOligonucleotidesSilver

Identifiers

PMID23330780
PMCPMC4532293
OpenAlexW2034062226

What OpenQuestion holds

Textmetadata
LicenceTDM
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.