Evidence map›Paper›PMID 30302568›Full record

ArticleMikrochimica acta2018

A voltammetric assay for microRNA-25 based on the use of amino-functionalized graphene quantum dots and ss- and ds-DNAs as gene probes.

Azam Akbarnia, Hamid R Zare

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Article in Mikrochimica acta, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

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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

11 citing papers in PubMed.

  1. Design of a lateral flow assay targeting the conserved NIID_2019-nCoV_N gene region for molecular viral diagnosis.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2025
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4 · The record

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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.

Azam AkbarniaDepartment of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, Iran.
Hamid R ZareDepartment of Chemistry, Faculty of Science, Yazd University, Yazd, 89195-741, Iran. hrzare@yazd.ac.ir.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The authors describe a DNA based voltammetric assay for the cancer biomarker microRNA-25. A glassy carbon electrode (GCE) was modified with amino-functionalized graphene quantum dots and used as an amplifier of electrochemical signals. p-Biphenol is introduced as a new electroactive probe with a fairly low working potential of 0.3 V (vs. Ag/AgCl). The stages of fabricating the electrode were characterized by cyclic voltammetry and electrochemical impedance spectroscopy. ss-Probe DNA was immobilized on the modified GCE and then exposed to a sample containing microRNA-25. The results indicated that the electrode can distinguish complementary microRNA-25 from a single-base mismatch. The increase in the electrochemical response of PBP and the positive shift in the potential peak indicate that PBP is intercalated between two strands. Under optimized experimental conditions, the current of the electrode increases linearly with the logarithm of the microRNA-25 concentration in the range from 0.3 nM to 1.0 μM, and the detection limit is 95.0 pM. The assay was successfully employed to the determination of microRNA-25 in spiked human plasma. Graphical abstract A novel electrochemical nanogenosensor is introduced for simple and sensitive determination of microRNA-25, as a biomarker, based on amino-functionalized graphene quantum dots (as a surface modifier) and p-biphenol (as an electroactive label).

Indexed as

Biosensing TechniquesDNA ProbesDNA, Single-StrandedElectrochemistryElectrodesGraphiteHumansMicroRNAsNucleic Acid HybridizationQuantum DotsSurface PropertiesDNA ProbesDNA, Single-StrandedGraphiteMicroRNAsMIRN25 microRNA, humanAmino-functionalized graphene quantum dotsCitric acidElectroactive labelmicroRNA-25p-BiphenolPyrolysis

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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.