A versatile platform for colorimetric, fluorescence and photothermal multi-mode glyphosate sensing by carbon dots anchoring ferrocene metal-organic framework nanosheet

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 443, P. 130277 - 130277

Published: Oct. 30, 2022

Language: Английский

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Recent advances in integrated dual-mode optical sensors for food safety detection

Trends in Food Science & Technology, Journal Year: 2023, Volume and Issue: 135, P. 14 - 31

Published: March 17, 2023

Language: Английский

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Magnetically Controlled Photothermal, Colorimetric, and Fluorescence Trimode Assay for Gastric Cancer Exosomes Based on Acid-Induced Decomposition of CP/Mn-PBA DSNBs

Analytical Chemistry, Journal Year: 2024, Volume and Issue: 96(10), P. 4213 - 4223

Published: March 1, 2024

The accurate quantification of cancer-derived exosomes, which are emerging as promising noninvasive biomarkers for liquid biopsies in the early diagnosis cancer, is becoming increasingly imperative. In our work, we developed a magnetically controlled photothermal, colorimetric, and fluorescence trimode aptasensor human gastric cancer cell (SGC-7901)-derived exosomes. This sensor relied on CP/Mn-PBA DSNBs nanocomposites, created by decorating copper peroxide (CP) nanodots polyethyleneimine-modified manganese-containing Prussian blue analogues double-shelled nanoboxes (PEI-Mn-PBA DSNBs). Through self-assembly, attached CD63 aptamer-labeled (Apt-CP/Mn-PBA DSNBs) to complementary DNA-labeled magnetic beads (cDNA-MB). During exosome incubation, these aptamers preferentially formed complexes with efficiently removed released using separation. exhibited high photoreactivity photothermal conversion efficiency under near-infrared (NIR) light, leading temperature variations 808 nm irradiation, correlating different concentrations. Additionally, colorimetric detection was achieved monitoring color change 3,3',5,5'-tetramethylbenzidine (TMB) system, facilitated PEI modification, NIR-enhanced peroxidase-like activity their capacity generate Cu

Language: Английский

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Detection of acetamiprid residues in vegetables by a self-enhanced bimetallic luminescent MOF-based electrochemiluminescence-electrochemistry dual-mode aptasensor

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 410, P. 135665 - 135665

Published: March 18, 2024

Language: Английский

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An Ultrasensitive Colorimetric Foodborne Pathogenic Detection Method Using a CRISPR/Cas12a Mediated Strand Displacement/Hybridization Chain Reaction

Journal of Agricultural and Food Chemistry, Journal Year: 2023, Volume and Issue: 71(9), P. 4193 - 4200

Published: Feb. 22, 2023

Accurate, rapid, and sensitive pathogenic detections play an important role in food safety. Herein, we developed a novel CRISPR/Cas12a mediated strand displacement/hybridization chain reaction (CSDHCR) nucleic acid assay for foodborne colorimetric detection. A biotinylated DNA toehold is coupled on avidin magnetic beads acts as initiator to trigger the SDHCR. The SDHCR amplification allowed formation of long hemin/G-quadruplex-based DNAzyme products catalyze TMB-H2O2 reaction. In presence targets, trans-cleavage activity was activated cleave DNA, resulting failure no color change. Under optimal conditions, CSDHCR has satisfactory linear detection targets with regression equation Y = 0.0531*X - 0.0091 (R2 0.9903) range 10 fM 1 nM, limit determined 4.54 fM. addition, Vibrio vulnificus, one pathogen, used verify practical application method, it showed specificity sensitivity at 1.0 × 100 CFU/mL coupling recombinase polymerase amplification. Our proposed biosensor could be promising alternative method ultrasensitive visual acids pathogens.

Language: Английский

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Dual-mode electrochemical/colorimetric microfluidic sensor integrated tetrahedral DNA nanostructures with Au/Ni-Co LDH NCs nanozyme for ultrasensitive detection of aflatoxin B1

Sensors and Actuators B Chemical, Journal Year: 2023, Volume and Issue: 393, P. 134322 - 134322

Published: July 20, 2023

Language: Английский

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Nanomaterial-mediated self-calibrating biosensors for ultra-precise detection of food hazards: Recent advances and new horizons

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 522, P. 216204 - 216204

Published: Sept. 10, 2024

Language: Английский

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Dual-mode aptasensors with cross validation capacity for reliability enhancement and analytical assurance

TrAC Trends in Analytical Chemistry, Journal Year: 2024, Volume and Issue: 177, P. 117755 - 117755

Published: May 12, 2024

Language: Английский

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Dual-modular electrochemiluminescence/electrochemistry aptasensing platform based on Ru(dcbpy)32+ loaded copper oxide nanospheres and Cu-Au bimetallic nanoparticles for the sensing of estradiol

Microchemical Journal, Journal Year: 2025, Volume and Issue: unknown, P. 112893 - 112893

Published: Jan. 1, 2025

Language: Английский

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Dual-modes of ratiometric fluorescent and smartphone-integrated colorimetric detection of glyphosate by carbon dots encapsulated porphyrin metal–organic frameworks

Applied Surface Science, Journal Year: 2022, Volume and Issue: 602, P. 154368 - 154368

Published: July 28, 2022

Language: Английский

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