This paper presents an electronic system for the automatic detection of hazardous gases. The proposed system implements colorimetric sensing algorithms, thus providing a low-cost solution to the problem of gas sensing. It is remotely operated and it performs the tasks of image capturing and processing, hence obtaining colour measurements in RGB (Red-Green-Blue) space that are subsequently sent to a remote operator via the internet. A prototype of the system has been built to test its performance. Specifically, experiments have been carried out aimed at the detection of CO, CO2, NO, NO2, SO2 and formaldehyde at diverse concentrations by using a chromogenic array composed by 13 active and 2 inert compounds. Statistical analyses of the results reveal a good performance of the electronic system and the feasibility of remote hazardous gas detection using colorimetric sensor arrays.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.isatra.2015.09.010 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Metal-organic frameworks (MOFs): A review of volatile organic compounds (VOCs) detection.
Talanta
December 2024
The First Dongguan Affiliated Hospital, Guangdong Medical University, Dongguan, 523700, China. Electronic address:
This research presents a systematic review of the application of metal-organic frameworks (MOFs) to detect volatile organic compounds (VOCs). VOCs, compounds with high vapor pressure at ambient temperature and normal pressure, are widely present in a variety of industrial and living environments. VOCs are not only hazardous to the environment but also have a severe impact on human health.
View Article and Find Full Text PDFA competitive dual-mode for tetracycline antibiotics sensing based on colorimetry and surface-enhanced Raman scattering.
Biosens Bioelectron
December 2024
State Key Laboratory of Food Science and Resources, School of Food Science and Technology, Jiangnan University, 214122, Wuxi, Jiangsu, People's Republic of China; Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 214122, Wuxi, Jiangsu, People's Republic of China; International Joint Laboratory on Food Safety, Jiangnan University, 214122, Wuxi, Jiangsu, People's Republic of China. Electronic address:
Tetracycline antibiotics (TCs) are extensively used as broad-spectrum antimicrobials. However, their excessive use and misuse have led to serious accumulation in foods and environments, posing a significant threat to human health. To solve such public issue, we have designed a novel dual-mode detection method, integrating colorimetric sensing with surface-enhanced Raman scattering (SERS) technology, for sensitive and rapid evaluation on TCs.
View Article and Find Full Text PDFA near-infrared multifunctional fluorescent bio-probe with large stokes shift and high quantum yield for effective determination of heavy metal lead and pesticide glyphosate in vitro and vivo.
J Hazard Mater
December 2024
Department of Chemistry, College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, PR China; Key Laboratory of Agricultural Functional Molecule Design and Utilization of Heilongjiang Province, Northeast Agricultural University, Harbin 150030, China. Electronic address:
Heavy metal contamination and pesticide residues pose significant threats to human health and ecosystems. Despite its broad applications, fluorescence imaging technology often struggles in complex ecological and biological environments due to disadvantages of background autofluorescence and low quantum yield. This study introduced a near-infrared (NIR) multifunctional "off-on-off" isophorone-based fluorescent bio-probe, DHB, characterized by a high fluorescence quantum yield (10.
View Article and Find Full Text PDFThe potential role of viruses in antibiotic resistance gene dissemination in activated sludge viromes.
J Hazard Mater
December 2024
College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China. Electronic address:
The dissemination of antibiotic resistance genes (ARGs) in activated sludge (AS) systems poses significant environmental and public health challenges. The role of viruses, primarily bacteriophages, in storing and spreading ARGs in AS systems remains largely unexplored. This study characterized the viral community, virus-associated ARGs (vir_ARGs), and mobile genetic elements (MGEs) of aerobic AS viromes from eight wastewater treatment plants (WWTPs) in eastern China.
View Article and Find Full Text PDFNanoparticle-mediated light-driven LAMP combined with test strips for sensitive and rapid visual detection of antibiotic resistance genes.
J Hazard Mater
December 2024
State Key Laboratory of Food Science and Resources, Jiangnan University, Wuxi 214122, China; International Joint Laboratory on Food Safety, Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China. Electronic address:
Antibiotic resistance genes (ARGs) are markers of drug-resistant pathogens, monitoring them contributes to prevent resistance to drugs. The detection methods for ARGs including PCR and isothermal amplification are sensitive and selective. However, it may take several hours or cannot be used on spot.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!