Evidence map›Paper›PMID 20174715›Full record

ArticleThe Analyst2010

Re-engineering aptamers to support reagentless, self-reporting electrochemical sensors.

Ryan J White, Aaron A Rowe, Kevin W Plaxco

Open access · greenAbstract read
In one paragraph

Article in The Analyst, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

46 citing papers in PubMed, 108 citations in OpenAlex.

  1. Review
  2. Reagentless Real-Time ATP Monitoring with New DNA Aptamers.Small (Weinheim an der Bergstrasse, Germany) · 2025
    Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Modular DNA origami-based electrochemical detection of DNA and proteins.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  8. Lyophilizing SERS biosensors to enable translation into an easy-to-use assay.Analytical methods : advancing methods and applications · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Review
  14. Aptamers 101: aptamer discovery andChemical science · 2023
    Review
  15. Article
  16. Article
  17. Real-Time,ACS sensors · 2022
    Review
  18. Article
  19. Article
  20. Biomarkers and Detection Platforms for Human Health and Performance Monitoring: A Review.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2022
    Review
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

3 authors at 1 institution in 1 country.

Ryan J WhiteDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA 93106, USA.
Aaron A Rowe
Kevin W Plaxco
University of California, Santa Barbara · US

Funding

Electrochemical arrays for the detection of small molecule drugsR01EB007689 · NIBIB · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI PLAXCO, KEVIN W · 2008 to 2011
$1.3M
Rapid Electronic Detection of Drug Analytes in BloodF32GM087126 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI WHITE, RYAN J. · 2009 to 2010
$98k
NIBIB NIH HHS R01 EB007689NIGMS NIH HHS 1 F32 GM087126-01A1NIGMS NIH HHS F32 GM087126
6 · The paper itself

Abstract

Electrochemical aptamer-based (E-AB) sensors have emerged as a promising and versatile new biosensor platform. Combining the generality and specificity of aptamer-ligand interactions with the selectivity and convenience of electrochemical readouts, this approach affords the detection of a wide variety of targets directly in complex, contaminant-ridden samples, such as whole blood, foodstuffs and crude soil extracts, without the need for exogenous reagents or washing steps. Signaling in this class of sensors is predicated on target-induced changes in the conformation of an electrode-bound probe aptamer that, in turn, changes the efficiency with which a covalently attached redox tag exchanges electrons with the interrogating electrode. Aptamer selection strategies, however, typically do not select for the conformation-switching architectures, and as such several approaches have been reported to date by which aptamers can be re-engineered such that they undergo the binding-induced switching required to support efficient E-AB signaling. Here, we systematically compare the merits of these re-engineering approaches using representative aptamers specific to the small molecule adenosine triphosphate and the protein human immunoglobulin E. We find that, while many aptamer architectures support E-AB signaling, the observed signal gain (relative change in signal upon target binding) varies by more than two orders of magnitude across the various constructs we have investigated (e.g., ranging from -10% to 200% for our ATP sensors). Optimization of the switching architecture is thus an important element in achieving maximum E-AB signal gain and we find that this optimal geometry is specific to the aptamer sequence upon which the sensor is built.

Indexed as

Adenosine TriphosphateAptamers, NucleotideBase SequenceBiosensing TechniquesElectrochemical TechniquesElectrodesHumansImmunoglobulin EOligonucleotides, AntisenseOxidation-ReductionAdenosine TriphosphateAptamers, NucleotideImmunoglobulin EOligonucleotides, Antisense

Identifiers

PMID20174715
PMCPMC2861036
OpenAlexW1981750052

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.