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Essentiality, Fate, Ecotoxicity, and Health Effects of Xanthates and Xanthates Based-Compounds—A Review

Journal of Geoscience and Environment Protection 2022年第12期10卷 161-203页

作者： Prudence Bararunyeretse pierre claver mpawenayo Lambert Niyoyitungiye Simon Buhungu Research Center for Natural Sciences and Environment Faculty of sciences University of Burundi Bujumbura Burundi

Xanthates are organic synthesized substances with a potentially wide range of applications. They may serve as essential components of many compounds or materials that also play a vital role in various industrial and socio-economic processes. Addressing the question of the use of xanthates without considering their toxicity, and their decomposition process and products would be ecologically and healthily less sustainable. To date, related information is still dispersed and less known to the public. Therefore, this work provides a comprehensive overview of the existing information on the essentiality, fate, ecotoxicity, and health effects of xanthates and associated compounds. According to available information from scientific, technical, and professional circles, xanthates are diverse, usually with a carbon chain of two to six carbon atoms. They play a crucial role in the sectors of the mining and mineral processing industry, agriculture, wastewater treatment, metal protection, rubber vulcanization, the pharmaceutical industry, and medicine. Xanthates’ degradation under different factors and mechanisms, which determine their fate in the environment, leads to the formation of toxic substances, mainly carbon disulfide, carbonyl sulfide, hydrogen sulfide, and hydrogen peroxide. Xanthates and xanthates degradation products are seriously hazardous to humans, animals, soil and aquatic organisms, enzymatic system, etc. Simultaneous exposure to xanthates and metals results in the magnification or reduction of their toxicity level, depending on the exposed organisms. Such toxicological dimensions should attract more scientific and public attention for more safe production, use, storage, and disposal of xanthates. Due to the high affinity of xanthates for metal, xanthates-modified compounds are efficient metal chelating agents. Such a property should be explored to develop potentially low-cost and effective alternatives for metal removal and recovery from contaminated media. T

关键词： Xanthates Xanthates Compounds Essentiality Ecotoxicity Health Effects

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Ultrasensitive,Highly Selective,Integrated Multidimensional Sensor Based on a Rigid‑Flexible Synergistic Stretchable Substrate

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Advanced Fiber Materials 2023年第4期5卷 1392-1403页

作者： Chao Ma Meng Wang Kai Wang pierre claver Uzabakiriho Xi Chen Gang Zhao Department of Electronic Engineering and Information Sciences University of Science and Technology of ChinaHefei 230027People’s Republic of China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230027People’s Republic of China College of Mathematics Physics and Information Science and EngineeringZhejiang Normal UniversityJinhua 321004Republic of China

High-performance wearable sensors that detect complex,multidimensional signals are indispensable in practical *** existing sensors can only detect axial deformations or single stimuli,dramatically limiting their application *** this study,anisotropic strain and deformation-insensitive pressure sensors were effectively constructed based on a rigid-flexible synergistic stretchable ***,we developed a three-dimensional integrated sensor with highly directional selective sensing through reasonable design and *** integrated sensor recognizes the amplitude and direction of strain in the plane with a maximum gauge factor of 635 and an unprecedented selectivity of ***,this device can also monitor the pressure outside the plane with a sensitivity of 0.277 kPa^(-1).We further investigated the working mechanism of sensor anisotropy and confirmed the application of the sensor in detecting complex multifreedom human joint *** research discovery provides new ideas and methods for developing multidimensional sensors,which is essential for broadening the application field of wearable electronic products.

关键词： Electrospinning Stencil printing Direction-aware strain sensors Deformation-insensitive pressure sensors Complex motion detection

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Determination of Element Levels of Lagoon from Townships near Cocody City Abidjan Côte D’Ivoire Using Energy Dispersive X-Ray Fluorescence

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World Journal of Nuclear Science and Technology 2021年第2期11卷 109-118页

作者： Alfred Djoman Djama Agbo Koudou Djagouri Jean-Claude Olkalé Brigui Konin pierre-claver Kakou Faculty of Sciences of Structure of Matter and Technology Laboratory of Matter Sciences of Environment and Solar Energy University Felix Houphouet-Boigny of Cocody Abidjan C&#244 te d’Ivoire Department of Sciences and Technology Ecole Normale Supérieure Abidjan C&#244 te d’Ivoire

Eight water bottles from Ebrie lagoon with pollution potency were studied using nuclear chemistry technique and Energy dispersive X-ray fluorescence. This pollution is characterized by pH and conductivity parameters, concentrations average in mg/L of metals such Fe (0.731), Mn (0.345), Cr (0.070), Cu (0.014) and concentrations of nutrients known to be pollutants and toxic for living or-ganisms. These heavy metals are dangerous to the lives, the local inhabitants and also a threat to aquatic life since this water is essential for the economical town, Abidjan. According to the Manganese concentration average (0.345 mg) values that higher than WHO (0.05 mg) value, the main likely source of pollu-tants is anthropogenic, industrial and agricultural. This study also shows the use of materials and lubricants near the lagoon that pollute this water.

关键词： Ebrie Lagoon Pollution Heavy Metals Energy Dispersive X-Ray Fluorescence

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Publisher Correction to:Ultrasensitive,Highly Selective,Integrated Multidimensional Sensor Based on a Rigid‑Flexible Synergistic Stretchable Substrate

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Advanced Fiber Materials 2023年第4期5卷 1548-1548页

Published online:18 April 2023©Donghua University,Shanghai,China 2023 Publisher Correction to:Advanced Fiber Materials https://***/10.1007/s42765-023-00274-8 Supplementary file2 was missing from this article and has now been *** original article has been *** Information The online version contains supplementary material available at https://***/10.1007/s42765-023-00289-1.

关键词： Highly Publisher missing

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