Evidence map›Paper›PMID 24434498›Full record

ArticleBiosensors & bioelectronics2014

Nano-yeast-scFv probes on screen-printed gold electrodes for detection of Entamoeba histolytica antigens in a biological matrix.

Yadveer S Grewal, Muhammad J A Shiddiky, Lauren J Spadafora, Gerard A Cangelosi, Matt Trau

Open access · greenAbstract read
In one paragraph

Article in Biosensors & bioelectronics, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

10 citing papers in PubMed, 41 citations in OpenAlex.

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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

5 authors at 2 institutions in 2 countries.

Yadveer S GrewalCentre for Biomarker Research and Development, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane QLD 4072, Australia.
Muhammad J A ShiddikyCentre for Biomarker Research and Development, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane QLD 4072, Australia. Electronic address: m.shiddiky@uq.edu.au.
Lauren J SpadaforaSchool of Public Health University of Washington, Seattle, WA, USA.
Gerard A CangelosiSchool of Public Health University of Washington, Seattle, WA, USA.
Matt TrauCentre for Biomarker Research and Development, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane QLD 4072, Australia; School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane QLD 4072, Australia. Electronic address: m.trau@uq.edu.au.
University of Washington · USUniversity of Queensland · AU

Funding

Diseases of Public Health Importance Training GrantT32AI007509 · NIAID · UNIVERSITY OF WASHINGTON · PI LUND, JENNIFER M · 1997 to 2024
$6.3M
Accelerated molecular probe pipelineU01AI082186 · NIAID · UNIVERSITY OF WASHINGTON · PI CANGELOSI, GERARD A · 2009 to 2013
$4.7M
NIAID NIH HHS T32 AI007509NIAID NIH HHS U01 AI082186PHS HHS U01AIO82186-01
6 · The paper itself

Abstract

The time and costs associated with monoclonal antibody production limit the potential for portable diagnostic devices to penetrate the market. Replacing the antibody with a low-cost alternate affinity reagent would reduce the costs of diagnostic development and use, and lead to new portable diagnostic devices towards many diseases. Herein, we present low-cost affinity reagents, nano-yeast-scFv, on commercially available, inexpensive, and portable screen-printed electrodes for the label-free electrochemical detection of Entamoeba histolytica cyst antigens. The biosensor was able to detect antigen at concentrations down to 10 pg mL(-1) in buffer with an inter-assay reproducibility of (% RSD, n=3) 4.1%. The applicability of two differently engineered nano-yeast-scFv to each specifically detect their cognant E. histolytica cyst antigens was demonstrated in a biological matrix derived from human stool. Because of the simple, inexpensive, and sensitive nature of this methodology, it may offer a low-cost alternative to immunosensors based on antibody-target recognition.

Indexed as

ElectrodesAntigens, ProtozoanBiosensing TechniquesConductometryEntamoeba histolyticaEquipment DesignEquipment Failure AnalysisFecesFungal ProteinsGoldImmunoassayMetal NanoparticlesMolecular Probe TechniquesReproducibility of ResultsSensitivity and SpecificitySingle-Chain AntibodiesAntigens, ProtozoanFungal ProteinsGoldSingle-Chain AntibodiesAffinity reagentElectrochemical immunosensorEntamoeba histolyticaLabel-free detectionNano-yeast–scFvScreen-printed electrode

Identifiers

PMID24434498
PMCPMC12500078
OpenAlexW2045287485

What OpenQuestion holds

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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.