A Tunable Threshold Colorimetric DNA Logic Gate for Intuitive Assessment of Chemical Contaminant Exceedance

Analytical Chemistry, Год журнала: 2024, Номер 96(29), С. 11862 - 11868

Опубликована: Июль 11, 2024

Current molecular logic gates are predominantly focused on the qualitative assessment of target presence, which has certain limitations in scenarios requiring quantitative assessment, such as chemical contaminant monitoring. To bridge this gap, we have developed a novel DNA gate featuring tunable threshold, specifically tailored to limits contaminants. At core is DNA-gold nanoparticle (AuNP) hybrid film that incorporates aptamer sequences selectively bind acetamiprid (ACE) and atrazine (ATR). Upon interaction with these contaminants, degrades, releasing AuNPs that, presence Hg

Язык: Английский

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Dopamine-supported HPLC post-column derivatization to fluorescence: Simultaneous and sensitive detection of eight tea polyphenols

Food Chemistry, Год журнала: 2024, Номер 464, С. 141582 - 141582

Опубликована: Окт. 9, 2024

Язык: Английский

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Enhancing mercury (II) ion detection with graphene oxide-cerium oxide nanocomposites: Enzyme free ultrasensitive detection

Materials Chemistry and Physics, Год журнала: 2023, Номер 312, С. 128638 - 128638

Опубликована: Окт. 31, 2023

Язык: Английский

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Emerging Insights into the Use of Advanced Nanomaterials for the Electrochemiluminescence Biosensor of Pesticide Residues in Plant-Derived Foodstuff

Critical Reviews in Analytical Chemistry, Год журнала: 2023, Номер 54(8), С. 3614 - 3631

Опубликована: Сен. 20, 2023

AbstractPesticides have an important role in rising the overall productivity and yield of agricultural foods by eliminating controlling insects, pests, fungi, various plant-related illnesses. However, overuse pesticides has caused pesticide pollution water bodies food products, along with disruption environmental ecological systems. In this regard, developing low-cost, simple, rapid-detecting approaches for accurate, rapid, efficient, on-site screening residues is ongoing challenge. Electrochemiluminescence (ECL) possesses benefits great sensitivity, capability to resolve several analytes using different emission wavelengths or redox potentials, excellent control over light radiation time space, making it a powerful strategy sensing pesticides. Cost-effective simple ECL systems allow sensitive, selective, accurate quantification fields. Particularly, development progress nanomaterials, aptamer/antibody recognition, electric/photo-sensing, their integration electrochemiluminescence technology presented hopeful potential reporting residual amounts Current trends application nanoparticles are debated, emphasis on sensor substrates aptamer, antibodies, enzymes, molecularly imprinted polymers (MIPs). Different strategies enclosed labeled label-free luminescence determination (signal-off, signal-on, signal-switch modes). Finally, recent challenges upcoming prospects ground also put forward.Keywords: Biosensingelectrochemiluminescencenanomaterialspesticide contaminants Author contributionsSulieman Ibraheem Shelash Al-Hawary: writing—review, investigation, visualization, conceptualization. Jitendra Malviya: writing—original draft. Raed H. Althomali: Sami G. Almalki: draft, visualization. Kibum Kim: Rosario Mireya Romero-Parra: conceptualization, writing—review editing, supervision, project administration, funding acquisition. Ahmad Fahad Ahmad: Hijran Sanaan Jabbar: Shaik Vaseem Akram: Ahmed Hussien Radie: All authors contributed writing, reviewing, editing review.

Язык: Английский

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Advances in environmental analysis of high molecular weight disinfection byproducts

Analytical and Bioanalytical Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 11, 2024

Язык: Английский

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