Cited by 127Advanced biosensing and bioanalysis techniquesElectrochemical sensors and biosensorsElectrochemical Analysis and Applications

Curcumin-graphene quantum dots for dual mode sensing platform: Electrochemical and fluorescence detection of APOe4, responsible of Alzheimer's disease

Mars, Abdelmoneim, Hamami, Maroua, Bechnak, Linda, Patra, Digambara, Raouafi, Noureddine·2018·Analytica Chimica Acta

Abstract

New dual electrochemical and fluorescence sensitive curcumin-graphene quantum dots sensing platform coated on the transparent Indium-Tin-Oxide electrode was developed to sense APOe4 DNA, responsible of Alzheimer's disease. Curcumin molecule with its dual fluorescence and electrochemical properties was electropolymerized on GQDs-ITO surface. EDC/NHS chemistry was used to covalently immobilize an amino-substituted DNA probe via a malonic acid spacer. Quenching of curcumin signals following hybridized DNA complex was employed to quantify APOe4 DNA. Amperometric studies revealed an ultrasensitive behavior toward the formation of DNA complex with a sensitivity of 4.74 nA.mL.pg -1 and a limit of detection as low as 0.48 pg mL -1 . The platform exhibits very good performances such as repeatability, reproducibility, selectivity and long storage stability. Fluorescence results were established for the support and the complementarity of electrochemical results. Founded results confirmed the ultrasensitivity of platform with comparable performances. Recorded results in human blood plasma demonstrated the high efficacy of curcumin system sensing even in the clinical matrix.

Integrity signals

Registry

Crossref · 10.1016/j.aca.2018.06.075

Cites

38 of 38 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Mars, A., Hamami, M., Bechnak, L., Patra, D., & Raouafi, N.
Affiliations
  • Tunis University (TN)
  • American University of Beirut (LB)
Corresponding author
Mars, Abdelmoneim
Venue
Analytica Chimica Acta
Publisher
Elsevier BV
Published
2018-12
Volume
1036
Pages
141-146
ISSN
0003-2670 (ISSN-L)
OpenAlex
W2848482279
Cited by
127
References
38
Citations by year
2026: 8 · 2025: 13 · 2024: 16 · 2023: 27 · 2022: 16 · 2021: 19 · 2020: 16 · 2019: 11 · 2018: 1
FWCI
4.18
Type
journal article
Language
en
Open access
closed
Locations
  • Analytica Chimica Acta (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Advanced biosensing and bioanalysis techniques
  • Physical Sciences › Engineering › Electrical and Electronic Engineering › Electrochemical sensors and biosensors
  • Physical Sciences › Chemistry › Electrochemistry › Electrochemical Analysis and Applications
Keywords
curcumin, graphene quantum dots, Alzheimer's disease biomarkers, electrochemical DNA biosensor, dual-mode sensing, electropolymerization, indium tin oxide electrode, DNA hybridization detection
MeSH terms
Alzheimer Disease, Curcumin, Fluorescence, Graphite, Humans, Particle Size, Spectrometry, Fluorescence, Quantum Dots, Apolipoprotein E4, Electrochemical Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review