Results 31 to 40 of about 22,772 (255)
Foods, 2022 A smartphone colorimetric sensor based on the Pt@Au nanozyme was successfully developed for the visual and quantitative detection of omethoate in fruit and vegetables.
Biao Zhang +9 more
doaj +1 more source
Phenosafranin-Based Colorimetric-Sensing Platform for Nitrite Detection Enabled by Griess Assay
Sensors, 2020 A facile and effective colorimetric-sensing platform based on the diazotization of phenosafranin for the detection of NO 2 − under acidic conditions using the Griess assay is presented. Diazotization of commercial phenosafranin produces
Jingzhou Hou +6 more
doaj +1 more source
Colorimetric Systems for the Detection of Bacterial Contamination: Strategy and Applications
Biosensors, 2022 Bacterial contamination is a public health concern worldwide causing enormous social and economic losses. For early diagnosis and adequate management to prevent or treat pathogen-related illnesses, extensive effort has been put into the development of ...
Dong-Min Kim, Seung-Min Yoo
doaj +1 more source
Integrated Digital Microfluidic Platform for Colorimetric Sensing of Nitrite [PDF]
ACS Omega, 2020 In this paper, a palm-size digital microfluidic (DMF) platform integrated with colorimetric analysis was developed for quantifying the concentration of nitrite. To realize the on-chip repeatable colorimetric analysis, a novel printed circuit board (PCB)-based DMF chip was designed with an embedded aperture on the actuator electrode, forming a vertical ...
Zhen Gu +4 more
openaire +3 more sources
A Hybrid Electrochemical−Colorimetric Sensing Platform for Detection of Explosives
Journal of the American Chemical Society, 2009 A highly selective, sensitive, and low-cost hybrid sensing platform is developed based on extraordinary properties of explosives in an ionic liquid and an integrated electrochemical and colorimetric approach.
Forzani, Erica S. +9 more
openaire +3 more sources
Chemical Physics Impact, 2023 Taking into account colorimetric sensing purposes of silver nanoparticles (AgNPs), a convenient system for simultaneous detection of multiple metal ions has been more challenging and less exploited.
Trung Dang-Bao +4 more
doaj +1 more source
Molecular Oncology, EarlyView.Dimethyl fumarate (DMF) reduces growth of HPV‐positive cervical cancer spheroids and induces ferroptosis in cervical cancer cells via blocking SLC7A11/Glutathione (GSH) axis. Combination of subcytotoxic doses of DMF and cisplatin (CDDP) further suppresses spheroid growth and drives cell death in 2D culture models.
Carolina Punziano +6 more
wiley +1 more source
Loss of proton‐sensing TDAG8 increases tumor progression in mouse models of colon cancer
Molecular Oncology, EarlyView.Loss of the pH‐sensing receptor TDAG8 accelerates colorectal cancer progression in mice. Animals lacking TDAG8 expression had increased tumor growth, DNA damage, and recruitment of tumor‐associated immune cells, including macrophages, neutrophils, and monocytes.
Ermanno Malagola +11 more
wiley +1 more source
Colorimetric Gas Sensing with Enhanced Sensitivity
Procedia Engineering, 2016 Abstract We present a colorimetric gas sensor system using folded sensing elements to obtain miniaturized, highly sensitive gas sensors. Our fabrication method offers the ease of transmission measurements and at the same time a substantial increase in sensitivity. The method is simple and cost-effective compared to waveguide-based solutions.
Schmitt, Katrin +4 more
openaire +2 more sources
Colorimetric Gas Sensing Washable Threads for Smart Textiles [PDF]
Scientific Reports, 2019 AbstractA fabrication method for a stable entrapment of optically responsive dyes on a thread substrate is proposed to move towards a detection system that can be integrated into clothing. We use the dyes 5,10,15,20-Tetraphenyl-21H,23H-porphine manganese(III) chloride (MnTPP), methyl red (MR), and bromothymol blue (BTB), for a proof-of-concept.
Rachel E. Owyeung +2 more
openaire +2 more sources