Evidence map›Paper›PMID 34567628›Full record

ArticleMicrosystems & nanoengineering2020

E-DNA scaffold sensors and the reagentless, single-step, measurement of HIV-diagnostic antibodies in human serum.

Claudio Parolo, Ava S Greenwood, Nathan E Ogden, Di Kang, Chase Hawes, Gabriel Ortega, Netzahualcóyotl Arroyo-Currás, Kevin W Plaxco

Open access · goldAbstract read
In one paragraph

Article in Microsystems & nanoengineering, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-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

19 citing papers in PubMed, 42 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Review
  7. Article
  8. Article
  9. Rationally Designed DNA-Based Scaffolds and Switching Probes for Protein Sensing.Advances in biochemical engineering/biotechnology · 2024
    Review
  10. Review
  11. Review
  12. Review
  13. Article
  14. Article
  15. Programmable Cell-Free Transcriptional Switches for Antibody Detection.Journal of the American Chemical Society · 2022
    Article
  16. Review
  17. Article
  18. Review
  19. 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

8 authors at 2 institutions in 1 country.

Claudio ParoloDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA USA.ORCID 0000-0001-9481-4408
Ava S GreenwoodDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA USA.
Nathan E OgdenDepartment of Materials, University of California, Santa Barbara, Santa Barbara, CA USA.
Di KangDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA USA.
Chase HawesDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA USA.ORCID 0000-0002-5927-9793
Gabriel OrtegaDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA USA.ORCID 0000-0002-7126-9096
Netzahualcóyotl Arroyo-CurrásDepartment of Pharmacology and Molecular Sciences, Johns Hopkins School of Medicine, Baltimore, MD 21205 USA.
Kevin W PlaxcoDepartment of Chemistry and Biochemistry, University of California, Santa Barbara, Santa Barbara, CA USA.
University of California, Santa Barbara · USJohns Hopkins University · US

Funding

The thermodynamics of protein-surface interactionsR01GM118560 · NIGMS · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI PLAXCO, KEVIN W · 2017 to 2020
$1.4M
NIGMS NIH HHS R01 GM118560
6 · The paper itself

Abstract

The multiplexed, point-of-care measurement of specific antibodies could improve the speed with which diseases are diagnosed and their treatment initiated. To this end, we are developing E-DNA scaffold sensors, which consist of a rigid, nucleic acid "scaffold" attached on one end to an electrode and presenting both a redox reporter and an epitope on the other. In the absence of antibody, the reporter efficiently transfers electrons when interrogated electrochemically. Binding-induced steric hindrance limits movement, reducing electron transfer in a manner that is both easily measured and quantitatively related to target concentration. Previously we have used monoclonal antibodies to explore the analytical performance of E-DNA sensors, showing that they support the rapid, single-step, quantitative detection of multiple antibodies in small volume samples. Here, in contrast, we employ authentic human samples to better explore the platform's clinical potential. Specifically, we developed E-DNA sensors targeting three HIV-specific antibodies and then compared the analytical and clinical performance of these against those of gold standard serological techniques. Doing so we find that, although the multistep amplification of an ELISA leads to a lower detection limits, the clinical sensitivity of ELISAs, E-DNA sensors and lateral-flow dipsticks are indistinguishable across our test set. It thus appears that, by merging the quantitation and multiplexing of ELISAs with the convenience and speed of dipsticks, E-DNA scaffold sensors could significantly improve on current serological practice.

Indexed as

BiosensorsChemistry

Identifiers

PMID34567628
PMCPMC8433188
OpenAlexW3012577108

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.