Results 31 to 40 of about 7,178 (247)

Visualising household air pollution: Colorimetric sensor arrays for monitoring volatile organic compounds indoors.

PLoS ONE, 2021
Indoor air quality monitoring as it relates to the domestic setting is an integral part of human exposure monitoring and health risk assessment. Hence there is a great need for easy to use, fast and economical indoor air quality sensors to monitor the ...
Emer Duffy, Kati Huttunen, Roosa Lahnavik, Alan F Smeaton, Aoife Morrin   +4 more
doaj   +1 more source

Colorimetric and Electrochemical Screening for Early Detection of Diabetes Mellitus and Diabetic Retinopathy—Application of Sensor Arrays and Machine Learning

Sensors, 2022
In this review, a selection of works on the sensing of biomarkers related to diabetes mellitus (DM) and diabetic retinopathy (DR) are presented, with the scope of helping and encouraging researchers to design sensor-array machine-learning (ML)-supported ...
Georgina Faura, Gerard Boix-Lemonche, Anne Kristin Holmeide, Rasa Verkauskiene, Vallo Volke, Jelizaveta Sokolovska, Goran Petrovski   +6 more
doaj   +1 more source

Optical Sensor Array for the Early Diagnosis of Alzheimer’s Disease

Frontiers in Chemistry, 2022
Alzheimer’s disease (AD) is the most common neurodegenerative disorder and has complicated pathobiology, leading to irreversible memory loss and severe cognitive dysfunction.
Fei Li, Callum Stewart, Shijie Yang, Fangfang Shi, Wenyu Cui, Shuming Zhang, Hao Wang, Hui Huang, Mingqi Chen, Jinsong Han   +9 more
doaj   +1 more source

Study on the Characteristics of Vacuum-Bagged Fermentation of Apo Pickle and Visualization Array Analysis of the Fermentation Process

Foods, 2023
Apo pickle is a fermented food with a long edible history in the Jiangnan region of China. Traditionally, plastic bottles are used as Apo pickle’s fermentation containers, and artificial bottling costs are high.
Jiawei Liu, Mengyao Wang, Ying Huang, Hai Sun, Haiying Liu   +4 more
doaj   +1 more source

Colorimetric Fingerprints of Gold Nanorods for Discriminating Catecholamine Neurotransmitters in Urine Samples

Scientific Reports, 2017
Catecholamine neurotransmitters, generally including dopamine (DA), epinephrine (EP) and norepinephrine (NE) are known as substantial indicators of various neurological diseases.
Somayeh Jafarinejad, Mahmoud Ghazi-Khansari, Forough Ghasemi, Pezhman Sasanpour, M. Reza Hormozi-Nezhad   +4 more
doaj   +1 more source

Seeing smells: development of an optoelectronic nose

Química Nova, 2007
The development of an array of chemically-responsive dyes on a porous membrane and in its use as a general sensor for odors and volatile organic compounds (VOCs) is reviewed. These colorimetric sensor arrays (CSA) act as an "optoelectronic nose" by using
Kenneth S. Suslick, Daniel P. Bailey, Crystal K. Ingison, Michael Janzen, Margaret E. Kosal, William B. McNamara III, Neal A. Rakow, Avijit Sen, Jeremy J. Weaver, Jennifer B. Wilson, Chen Zhang, Shirley Nakagaki   +11 more
doaj   +1 more source

Optoelectronic nose based on an origami paper sensor for selective detection of pesticide aerosols

Scientific Reports, 2020
This study introduces an applicable colorimetric sensor array for the detection of pesticides in the vapor phase. The array consisted of six metal nanoparticles spotted on the piece of filter paper.
Mohammad Mahdi Bordbar, Tien-Anh Nguyen, Anh Quang Tran, Hasan Bagheri   +3 more
doaj   +1 more source

Image Semantic Recognition Algorithm of Colorimetric Sensor Array Based on Deep Convolutional Neural Network

Advances in Multimedia, 2022
The inspection of some substances usually includes two levels. One is the detection of the physical properties of the substance, which can be carried out through a series of physical detection methods and corresponding physical experiments.
Xihua Chen, Xing Yang
doaj   +1 more source

A Paper-Based Biomimetic Sensing Device for the Discrimination of Original and Fraudulent Cigarette Brands Using Mixtures of MoS₂ Quantum Dots and Organic Dyes

Biosensors, 2023
In this study, we investigated the combined effects of MoS2 QDs’ catalytic properties and the colorimetric responses of organic reagents to create a sniffing device based on the sensor array concept of the mammalian olfactory system.
Fereshte Mohamadi Gharaghani, Sara Mostafapour, Bahram Hemmateenejad   +2 more
doaj   +1 more source

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

Advanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li, Zhangzheng Xiao, Zheng Yan, Adnan Raza Altaf, Qun Song, Dingding Yao, Afshan Sohail, Yixin Wang, Wenxiu Ma, Shanjun Li, Yaohui Chen, Peiwen Liu, Kai Zhang   +12 more
wiley   +1 more source