ArticleFrontiers in chemistry2021
Functionalized Multi-Walled Carbon Nanotube-Based Aptasensors for Diclofenac Detection.
Article in Frontiers in chemistry, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 17 citations in OpenAlex.
- Synergistic Effects of CoHCF@MWCNTs@FA Nanocomposites Enhancing Photodynamic Therapy for Triple-Negative Breast Cancer.ACS omega · 2026Article
- A proof-of-concept study using a graphene oxide-bovine serum albumin nanocomposite-based electrochemical aptasensor platform forThe veterinary quarterly · 2025Article
- Advances in Aptamer-Based Conjugate Recognition Techniques for the Detection of Small Molecules in Food.Foods (Basel, Switzerland) · 2024Review
- Nanomaterials as catalysts for the sensitive and selective determination of diclofenac.ADMET & DMPK · 2024Review
Corrections and comments
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Authors and funding
6 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Driven by the increasing concern about the risk of diclofenac (DCF) residues as water pollutants in the aqueous environment and the growing need for its trace determination, a simple but sensitive electrochemical aptasensor for the trace detection of DCF was developed. To construct the aptasensor, the amine-terminated DCF aptamer was covalently immobilized on the surface of the carboxylic acid-functionalized multi-walled carbon nanotube (f-MWCNT)-modified glassy carbon electrode (GCE) through EDC/NHS chemistry. The f-MWCNTs provide a reliable matrix for aptamer immobilization with high grafting density, while the aptamer serves as a biorecognition probe for DCF. The obtained aptasensor was incubated with DCF solutions at different concentrations and was then investigated by electrochemical impedance spectroscopy (EIS). It displays two linear ranges of concentration for DCF detection, from 250 fM to 1pM and from 1 pM to 500 nM with an extremely low detection limit of 162 fM. Also, the developed biosensor shows great reproducibility, acceptable stability, and reliable selectivity. Therefore, it offers a simple but effective aptasensor construction strategy for trace detection of DCF and is anticipated to show great potential for environmental applications.
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