Results 291 to 300 of about 2,750,300 (344)
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Catalase-integrated metal-organic framework with synergetic catalytic activity for colorimetric sensing.

Environmental Research, 2021
As a platform for enzyme immobilization, metal-organic frameworks (MOFs) can protect enzyme activity from the interference of external adverse environment.
Y. Jing   +10 more
semanticscholar   +1 more source

Functionalized silver nanoparticles as colorimetric probes for sensing tricyclazole

Food Chemistry, 2021
A colorimetric assay for highly selective and sensitive detection of tricyclazole using fluorescein-functionalized silver nanoparticles (F-AgNPs) as sensing probes was investigated. As the addition of tricyclazole to F-AgNPs, a drastic decrease in the absorbance at 394 nm was detected, which was accompanied with a noticeable color change from yellow to
Yen-Chang, Su   +3 more
openaire   +2 more sources

The optimal color space enables advantageous smartphone-based colorimetric sensing.

Biosensors & bioelectronics
Smartphone-based colorimetric (bio)sensing is a promising alternative to conventional detection equipment for on-site testing, but it is often limited by sensitivity to lighting conditions. These issues are usually avoided using housings with fixed light
Amauri Horta-Velázquez   +2 more
semanticscholar   +1 more source

A dual-mode fluorescence and colorimetric sensing platform for efficient detection of ofloxacin in aquatic products using iron alkoxide nanozyme.

Food Chemistry
Trace detection of ofloxacin (OFL) with high sensitivity, reliability, and visual clarity is challenging. To address this, a novel dual-modal aptasensor with fluorescence-colorimetric capabilities was designed that exploit the target-induced release of 3,
Xiaodan Ding   +5 more
semanticscholar   +1 more source

Biomolecular Sensing with Colorimetric Vesicles

2007
This chapter summarizes recent studies employing colorimetric vesicle-based systems for biomolecular sensing. Vesicular aggregates exhibit an important advantage as a biological sensing platform in that they mimic the cell membrane—the site of molecular docking, ligand–receptor binding, and other important processes that can be exploited as a means of ...
Raz Jelinek, Sofiya Kolusheva
openaire   +1 more source

Ultrasmall CuMn-His Nanozymes with Multienzyme Activity at Neutral pH: Construction of a Colorimetric Sensing Array for Biothiol Detection and Disease Identification.

ACS Applied Materials and Interfaces
Biothiol assays offer vital insights into health assessment and facilitate the early detection of potential health issues, thereby enabling timely and effective interventions.
Zihui Chen   +8 more
semanticscholar   +1 more source

A portable colorimetric sensing platform for rapid and sensitive quantification of dichlorvos pesticide based on Fe-Mn bimetallic oxide nanozyme-participated highly efficient chromogenic catalysis.

Analytica Chimica Acta
BACKGROUND Dichlorvos (DDVP), as a highly effective insecticide, is widely used in agricultural production. However, DDVP residue in foodstuffs adversely affects human health.
Shigang Liu   +5 more
semanticscholar   +1 more source

A dual-mode sensing platform based on metal-organic framework for colorimetric and ratiometric fluorescent detection of organophosphorus pesticide.

Food Chemistry, 2023
Pesticide residues have raised considerable concern about environmental health and food safety. Despite a great advance in enzymatic sensors for pesticide detection, the intrinsic fragility of native enzyme and possible fake results due to single mode ...
Shuli Liu   +6 more
semanticscholar   +1 more source

Fano Resonant Aluminum Nanoclusters for Plasmonic Colorimetric Sensing

ACS Nano, 2015
Aluminum is an abundant and high-quality material for plasmonics with potential for large-area, low-cost photonic technologies. Here we examine aluminum nanoclusters with plasmonic Fano resonances that can be tuned from the near-UV into the visible region of the spectrum. These nanoclusters can be designed with specific chromaticities in the blue-green
Nicholas S, King   +6 more
openaire   +2 more sources

Dual-recognition colorimetric sensing of thrombin based on surface-imprinted aptamer-Fe3O4.

Journal of materials chemistry. B, 2021
Thrombin plays an essential role in blood coagulation and some physiological and pathological processes. The convenient, rapid, sensitive, and specific detection of thrombin is of great significance in clinical research and diagnosis.
Ming-Che Shen   +2 more
semanticscholar   +1 more source

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