Sensors and Biosensors for Environment Contaminants

Mohamed, Heba M.

doi:10.1007/978-3-030-45116-5_6

Cited by 6 publications

(3 citation statements)

References 116 publications

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“…Sensors are great tools for xenobiotics detection and monitoring, and are composed of nanomaterials, recognition elements, and a signal transduction means for analyte detection. They detect environmental pollutants, such as pesticides, heavy metals, polycyclic aromatic hydrocarbons, toxins, and other emerging contaminants, including gasoline additives, pharmaceuticals, hormones, personal care products, endocrine-disrupting agents, organometallic compounds, disinfection by-products, plasticizers, perfluorinated compounds, and surfactants [ 48 ]. They are easy to use, portable, sustainable, and are cost-effective [ 49 ].…”

Section: Methodsmentioning

confidence: 99%

Xenobiotics—Division and Methods of Detection: A Review

Štefanac

Grgas

Dragičević

2021

JoX

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Xenobiotics are compounds of synthetic origin, usually used for domestic, agricultural, and industrial purposes; in the environment, they are present in micropollutant concentrations and high concentrations (using ng/L to µg/L units). Xenobiotics can be categorized according to different criteria, including their nature, uses, physical state, and pathophysiological effects. Their impacts on humans and the environment are non-negligible. Prolonged exposure to even low concentrations may have toxic, mutagenic, or teratogenic effects. Wastewater treatment plants that are ineffective at minimizing the release of xenobiotic compounds are one of the main sources of xenobiotics in the environment (e.g., xenobiotic compounds reach the environment, affecting both humans and animals). In order to minimize the negative impacts, various laws and regulations have been adopted in the EU and across the globe, with an emphasis on xenobiotics removal from the environment, in a way that is economically, environmentally, and socially acceptable, and will not result in their accumulation, or creation of compounds that are more harmful. Detection methods allow detecting even small concentrations of xenobiotics in samples, but the problem is the diversity and mix of compounds present in the environment, in which it is not known what their effects are). In this review, the division of xenobiotics and their detection methods will be presented.

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Section: Methodsmentioning

confidence: 99%

Xenobiotics—Division and Methods of Detection: A Review

Štefanac

Grgas

Dragičević

2021

JoX

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“…Modifications are performed on the electrodes to improve their efficiency [16]. This will involve etching techniques to enhance surface roughness for the adsorption of pollutants or the introduction of active materials like carbon nanomaterials, quantum dots, conductive organics, metal oxide nanoparticles, antibodies, and enzymes [56]. Additionally, modifying the surfaces using nano-structured materials promotes faster electron transfer kinetics, resulting in quicker response times ideal for wireless sensing.…”

Section: Electrochemical Sensorsmentioning

confidence: 99%

Integrating Wireless Remote Sensing and Sensors for Monitoring Pesticide Pollution in Surface and Groundwater

Mutunga,

Sinanovic,

Harrison

2024

Sensors

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Water constitutes an indispensable resource crucial for the sustenance of humanity, as it plays an integral role in various sectors such as agriculture, industrial processes, and domestic consumption. Even though water covers 71% of the global land surface, governments have been grappling with the challenge of ensuring the provision of safe water for domestic use. A contributing factor to this situation is the persistent contamination of available water sources rendering them unfit for human consumption. A common contaminant, pesticides are not frequently tested for despite their serious effects on biodiversity. Pesticide determination in water quality assessment is a challenging task because the procedures involved in the extraction and detection are complex. This reduces their popularity in many monitoring campaigns despite their harmful effects. If the existing methods of pesticide analysis are adapted by leveraging new technologies, then information concerning their presence in water ecosystems can be exposed. Furthermore, beyond the advantages conferred by the integration of wireless sensor networks (WSNs), the Internet of Things (IoT), Machine Learning (ML), and big data analytics, a notable outcome is the attainment of a heightened degree of granularity in the information of water ecosystems. This paper discusses methods of pesticide detection in water, emphasizing the possible use of electrochemical sensors, biosensors, and paper-based sensors in wireless sensing. It also explores the application of WSNs in water, the IoT, computing models, ML, and big data analytics, and their potential for integration as technologies useful for pesticide monitoring in water.

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“…Sensors are considered as the most valuable tools for direct, fast, and on-site monitoring ( Justino et al, 2015 ). In contrast to traditional physical and chemical sensors for contaminants detection, biosensors have superiorities in relatively accurate and reliable real-time detection, decreased consumption of hazardous chemicals and reagents, and cost efficiency for manufacture ( Mohamed, 2020 ). Each biosensor is composed of a biomolecule recognition element (e.g., enzyme, antibody, or cell receptor) and a bio-transducer or an electronic unit for signal and data acquisition.…”

Section: Introductionmentioning

confidence: 99%

Microfluidic Based Whole-Cell Biosensors for Simultaneously On-Site Monitoring of Multiple Environmental Contaminants

Cao

Zhang

Zhu

et al. 2021

Front. Bioeng. Biotechnol.

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Monitoring of environmental contaminants serves a vital role in proactive environmental management and pollution control. Research efforts have been centered on the development of robust whole-cell biosensors in recent years. However, data acquisition, multiple contaminants detection and biosafety issues limit the on-site application of such biosensors. Microfluidic system exhibits great potential to face these challenges via coupling biosensors. Here, we prospect a novel microfluidic based whole-cell biosensor (MWCB) for multiplexing monitoring of diverse contaminants, and design strategies to further increase the specificity, sensitivity and accuracy, reduce signal delay and expand shelf life of the proposed MWCB for on-site environmental applications. The development of MWCB demands multidisciplinary cooperation, and the sensing platforms are highly promising for real-world contaminants monitoring.

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Sensors and Biosensors for Environment Contaminants

Cited by 6 publications

References 116 publications

Xenobiotics—Division and Methods of Detection: A Review

Xenobiotics—Division and Methods of Detection: A Review

Integrating Wireless Remote Sensing and Sensors for Monitoring Pesticide Pollution in Surface and Groundwater

Microfluidic Based Whole-Cell Biosensors for Simultaneously On-Site Monitoring of Multiple Environmental Contaminants

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