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Improving the sensing sensitivity of silver nanoparticle-based colorimetric biosensors from the point of salt
The sensing sensitivity was improved for silver nanoparticles (AgNPs)-based colorimetric biosensors by using the most suitable salt to induce AgNPs...
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Nanozyme colorimetric sensing of L-cysteine and copper ions based on PtCo nanoparticles@multi-walled carbon nanotubes
In this work, PtCo bimetallic nanoparticles supported on multi-walled carbon nanotubes (PtCo@MWCNTs) nanohybrid was prepared simply and used for the...
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Rapid and sensitive detection of paracetamol in environmental aqueous samples using MnO2 nanosheet-based colorimetric sensing platform
This study introduces a novel method for the rapid and efficient detection of paracetamol, leveraging a colorimetric sensing mechanism predicated on...
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Selective Colorimetric Sensing of Fluoride Ion in Water by 4-Quinonimine Functionalized Gold Nanoparticles
The stable aqueous colloid of 4-quinonimine (4-QI) functionalized gold nanoparticles (AuNPs) was successfully employed for the selective colorimetric...
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A colorimetric sensing strategy based on chitosan-stabilized platinum nanoparticles for quick detection of α-glucosidase activity and inhibitor screening
α-Glucosidase (α-Glu) is implicated in the progression and pathogenesis of type II diabetes (T2D). In this study, we developed a rapid colorimetric...
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An integrated magnetic separation enzyme-linked colorimetric sensing platform for field detection of Escherichia coli O157: H7 in food
An intelligent colorimetric sensing platform integrated with in situ immunomagnetic separation function was developed for ultrasensitive detection of E...
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Nanozyme-based dual-signal sensing system for colorimetric and photothermal detection of AChE activity in the blood of liver-injured mice
Acetylcholinesterase (AChE), a crucial enzyme related to liver function, is involved in numerous physiological processes such as neurotransmission...
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Highly sensitive and selective colorimetric sensing of CO2 for biomedical applications
The concentration of carbon dioxide (CO 2 ) in unhealthy people differs greatly from healthy people. High-precision CO 2 detection with a quick response...
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Synthesis of amino acid-functionalized Cit-T20-GNPs and investigation of their metal ion selectivity for colorimetric sensing
The use of functionalized gold nanoparticles (GNPs) as a colorimetric sensor for heavy metal ions has been extensively studied due to their unique...
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Rational design of cuprofullerene bipyridine nanozyme with high peroxidase-like activity for colorimetric sensing of bleomycin
The high catalytic activity of Cu-based nanozymes mainly depends on the efficient Fenton-like reaction of Cu + / H 2 O 2 , but Cu + cannot exist stably....
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MOF-based Ag NPs/Co3O4 nanozyme for colorimetric detection of thiophanate-methyl based on analyte-enhanced sensing mechanism
Silver nanoparticles supported on metal–organic framework (ZIF-67)-derived Co 3 O 4 nanostructures (Ag NPs/Co 3 O 4 ) were synthesized via a facile in situ...
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N,N-dicarboxymethyl Perylene-diimide-modified CdV2O6 Nanorods for Colorimetric Sensing of H2O2 and Pyrogallol
The peroxidase-like activity of CdV 2 O 6 nanorods has been considerably improved by modification with N, N-dicarboxymethyl perylene-diimide (PDI) as a...
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Ag+ colorimetric sensor based on graphene oxide/nano-platinum composite
With the development of society, pollution accidents occur more frequently, and the effects of toxic substances containing silver on human health and...
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Magnetic zirconium-based Prussian blue analog nanozyme: enhanced peroxidase-mimicking activity and colorimetric sensing of phosphate ion
A magnetic zirconium hexacyanoferrate-based Prussian blue analog (MB@ZrHCF) nanozyme was synthesized using dopamine (DA) reduction-assisted method...
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Bimetallic AuPt alloy/rod-like CeO2 nanojunctions with high peroxidase-like activity for colorimetric sensing of organophosphorus pesticides
Organophosphorus pesticides (OP) have extensive applications in agriculture, while their overuse causes inevitable residues in food, soil, and water,...
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Enzyme mimics of Os/Ag nanoparticles for colorimetric detection of biothiols by smartphone
In this study, Os/Ag nanoparticles (Os/Ag NPs) with smaller K m and almost five times V max compared to Os NPs were prepared. This not only reduced the...
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Colorimetric Sensing of Hydrogen Peroxide Based on the Wavelength-Shift of CsPbBr3 Perovskite Nanocrystals on Water–Oil Interface
In this study, the halogen exchange reactions are investigated between KI or methylamine iodide in aqueous solution and CsPbBr 3 NCs in toluene. The...
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A review on indole-based colorimetric and fluorescence sensors for the detection of heavy metal ions
The release of a substantial amount of heavy metals into the environment has led to severe environmental pollution, with some metals posing extreme...
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Integration of Myrica rubra–based N-doped carbon dots with Fe3S4 as excellent peroxidase mimics for colorimetric assay and smartphone-based intelligent sensing of p-aminophenol in waters
To realize the reutilization of waste Myrica rubra in the analytical field, we synthesized Myrica rubra –based N-doped carbon dots (MN-CDs) and...
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Cu-MOF derived CuO@g-C3N4 nanozyme for cascade catalytic colorimetric sensing
The use of peroxidase mimics has great potential for various real applications due to their strong catalytic activity. Herein, a facile strategy was...
