Results 31 to 40 of about 24,311 (260)

Colorimetric Detection of Sudan Based on the Aptamer and Cationic Compound Induced Gold Nanoparticles Aggregation

Shipin gongye ke-ji, 2023
In this study, a simple, economical and rapid colorimetric assay was developed for the detection of Sudan, in which Sudan-binding aptamer was used as recognition element, unmodified gold nanoparticles (AuNPs) as sensing signal, and poly ...
Changyong LIU, Chunxia LU, Xia CHEN, Zonggui TANG, Fumin DANG   +4 more
doaj   +1 more source

Digital colorimetric sensing for real‐time gas monitoring for smart green energy system

EcoMat, 2023
In this study, we demonstrate that a digital colorimetric sensor platform can transform a conventional energy system, such as gas‐insulated switchgear (GIS) into a smart green energy system. Our sensor platform consists of a colorimetric sensor film (CSF)
Hui Hun Cho, Riya Dutta, Jang‐Kyun Kwak, Changgyun Moon, Min‐Jae Kim, Su‐Jeong Suh, Dong‐Hwan Kim, Jung Heon Lee, Sunkook Kim   +8 more
doaj   +1 more source

Nanoporous Silica-Dye Microspheres for Enhanced Colorimetric Detection of Cyclohexanone

Chemosensors, 2018
Forensic detection of non-volatile nitro explosives poses a difficult analytical challenge. A colorimetric sensor comprising of ultrasonically prepared silica-dye microspheres was developed for the sensitive gas detection of cyclohexanone, a volatile ...
Zheng Li
doaj   +1 more source

Improvement Methods for Colorimetric Gas Sensor for Use in Indoor Livestock Farming

Proceedings, 2019
Different published colorimetric sensors were investigated with the ultimate goal to develop a colorimetric sensor for a closed livestock farm, applicable in a rough environment. The methods were investigated to improve the lack of sensitivity, roughness,
Jan-Kees Boerman, Jan-Kees van Harberden, Carolin Pannek, Katrin Schmitt, Karina R. Tarantik, Marie-Luise Bauersfeld, Jürgen Wöllenstein   +6 more
doaj   +1 more source

Colorimetric and Fluorescence Dual-Mode Biosensors Based on Peroxidase-Like Activity of the Co3O4 Nanosheets

Frontiers in Chemistry, 2022
The mimic enzyme has become a research hotspot in recent years because of its advantages of high stability, convenient preparation, and low price. In this article, Co3O4 nanosheets synthesized by a simple hydrothermal method possess the characteristics ...
Jingying Tan, Weifu Geng, Junde Li, Zhen Wang, Shaohao Zhu, Xiuzhong Wang   +5 more
doaj   +1 more source

Dimethyl fumarate combined with cisplatin at subcytotoxic doses sensitizes cervical cancer toward ferroptosis and apoptosis through GSH restriction and p53 (re)activation

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, Giuseppina Minopoli, Simona Romano, Laura Marrone, Katia Aquilano, Maria Lina Tornesello, Raffaella Faraonio   +6 more
wiley   +1 more source

Textile-Based Volatile Organic Compound Sensors Using Cellulose Fabrics and Direct Dyes

Journal of Natural Fibers, 2023
In order to fabricate colorimetric textile sensors detecting gas phase of volatile organic compounds (VOCs), 11 kinds of direct dyes were investigated for 13 types of VOCs.
Junheon Lee, Heejeong Jun, Namju Park, Taekyeong Kim   +3 more
doaj   +1 more source

Prussian Blue Nanoparticle Supported MoS₂ Nanocomposites as a Peroxidase-Like Nanozyme for Colorimetric Sensing of Dopamine

Biosensors, 2022
An abnormal level of dopamine (DA) is usually related to neurological disorders, including Parkinson’s disease. Herein, cubic-shaped, Prussian blue nanoparticle-supported MoS2 nanocomposites (MoS2-CPBNPs) were prepared as peroxidase-like nanozymes for ...
Zhiqiang Zhu, Lingbo Gong, Xiangyang Miao, Chaoyang Chen, Shao Su   +4 more
doaj   +1 more source

Improving Color Accuracy of Colorimetric Sensors [PDF]

Sensors, 2018
Accurate measurements of reflectance and color require spectrophotometers with prices often exceeding $3000. Recently, new “color instruments” became available with much lower prices, thanks to the availability of inexpensive colorimetric sensors. We investigated the Node+ChromaPro and the Color Muse, launched in 2015 and 2016 by Variable Inc.
Kirchner, Eric, Koeckhoven, Pim, Sivakumar, Keshav   +2 more
openaire   +2 more sources

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, Yasmine Illi, Anna Bircher, Marijn Wilmink, Rachele F. Malagutti, Solenn Ottié, Cordelia Schuler, Pedro A. Ruiz, Cheryl de Vallière, Klaus Seuwen, Gerhard Rogler, Martin Hausmann   +11 more
wiley   +1 more source