Results 21 to 30 of about 24,507 (259)

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

Dual-signal readout paper-based wearable biosensor with a 3D origami structure for multiplexed analyte detection in sweat

Microsystems & Nanoengineering, 2023
In this research, we design and implement a small, convenient, and noninvasive paper-based microfluidic sweat sensor that can simultaneously detect multiple key biomarkers in human sweat.
Yuemeng Cheng, Shaoqing Feng, Qihong Ning, Tangan Li, Hao Xu, Qingwen Sun, Daxiang Cui, Kan Wang   +7 more
doaj   +1 more source

Colorimetric Sensing of Amoxicillin Facilitated by Molecularly Imprinted Polymers [PDF]

Polymers, 2021
The scope of the presented research orientates itself towards the development of a Molecularly Imprinted Polymer (MIP)-based dye displacement assay for the colorimetric detection of the antibiotic amoxicillin in aqueous medium. With this in mind, the initial development of an MIP capable of such a task sets focus on monolithic bulk polymerization to ...
Joseph W Lowdon, Hanne Diliën, Bart van Grinsven, Kasper Eersels, Thomas J. Cleij   +4 more
openaire   +2 more sources

Interference Coatings for Infrared Spectroscopy and Colorimetric Sensing [PDF]

Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF), 2018
Constructive interference and strong interference surfaces are created to sense ultrathin probe materials such as monolayer protein molecules using enhanced infrared absorption spectroscopy and colorimetric detection, respectively.
Bakan, Gökhan, Ayas, Sencer, Özgür, Erol, Çelebi, Kemal, Dana, Aykutlu   +4 more
openaire   +2 more sources

Colorimetric sensing: Small 21/2009 [PDF]

Small, 2009
The cover picture illustrates a novel concept for colorimetric protein sensing based on the controllable assembly of polypeptide-functionalized gold nanoparticles.
Daniel Aili, Robert Selegård, Lars Baltzer, Karin Enander, Bo Liedberg   +4 more
openaire   +1 more source

An AIE probe for the fluorescence and colorimetric sensing of La³. [PDF]

RSC Adv
A colorimetric fluorescent sensor named N , which exhibited solid state emission, was developed for the fluorescence colorimetric sensing of La 3+ in water and in the solid state with high selectivity and sensitivity.
Lin WY, Zong ZA, Wang J, Huang Q, Xing ZY, Fan CB, Li NN.   +6 more
europepmc   +3 more sources

Colorimetric plasmon resonance microfluidics on nanohole array sensors

Sensing and Bio-Sensing Research, 2015
We present the label-free colorimetric visualization in microfluidics using plasmon resonance on a large-area and over a wide field-of-view (>100 mm2) nanohole array device called nanoLycurgus Cup Array (nanoLCA).
Austin Hsiao, Manas Ranjan Gartia, Te-Wei Chang, Xinhao Wang, Pakapreud Khumwan, Gang Logan Liu   +5 more
doaj   +1 more source

A Smartphone Colorimetric Sensor Based on Pt@Au Nanozyme for Visual and Quantitative Detection of Omethoate

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, Ruofan Zhou, Huiqi Zhang, Danfeng Cai, Xiaodong Lin, Yihan Lang, Yulou Qiu, Xuping Shentu, Zihong Ye, Xiaoping Yu   +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, Huixiang Wu, Xin Shen, Chao Zhang, Changjun Hou, Qiang He, Danqun Huo   +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