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Technology Roadmap for Flexible Sensors

ACS NANO 2023年第6期17卷 5211-5295页

作者： Luo, Yifei Abidian, Mohammad Reza Ahn, Jong-Hyun Akinwande, Deji Andrews, Anne M. Antonietti, Markus Bao, Zhenan Berggren, Magnus Berkey, Christopher A. Bettinger, Christopher John Chen, Jun Chen, Peng Cheng, Wenlong Cheng, Xu Choi, Seon-Jin Chortos, Alex Dagdeviren, Canan Dauskardt, Reinhold H. Di, Chong-an Dickey, Michael D. Duan, Xiangfeng Facchetti, Antonio Fan, Zhiyong Fang, Yin Feng, Jianyou Feng, Xue Gao, Huajian Gao, Wei Gong, Xiwen Guo, Chuan Fei Guo, Xiaojun Hartel, Martin C. He, Zihan Ho, John S. Hu, Youfan Huang, Qiyao Huang, Yu Huo, Fengwei Hussain, Muhammad M. Javey, Ali Jeong, Unyong Jiang, Chen Jiang, Xingyu Kang, Jiheong Karnaushenko, Daniil Khademhosseini, Ali Kim, Dae-Hyeong Kim, Il-Doo Kireev, Dmitry Kong, Lingxuan Lee, Chengkuo Lee, Nae-Eung Lee, Pooi See Lee, Tae-Woo Li, Fengyu Li, Jinxing Liang, Cuiyuan Lim, Chwee Teck Lin, Yuanjing Lipomi, Darren J. Liu, Jia Liu, Kai Liu, Nan Liu, Ren Liu, Yuxin Liu, Yuxuan Liu, Zhiyuan Liu, Zhuangjian Loh, Xian Jun Lu, Nanshu Lv, Zhisheng Magdassi, Shlomo Malliaras, George G. Matsuhisa, Naoji Nathan, Arokia Niu, Simiao Pan, Jieming Pang, Changhyun Pei, Qibing Peng, Huisheng Qi, Dianpeng Ren, Huaying Rogers, John A. Rowe, Aaron Schmidt, Oliver G. Sekitani, Tsuyoshi Seo, Dae-Gyo Shen, Guozhen Sheng, Xing Shi, Qiongfeng Someya, Takao Song, Yanlin Stavrinidou, Eleni Su, Meng Sun, Xuemei Takei, Kuniharu Tao, Xiao-Ming Tee, Benjamin C. K. Thean, Aaron Voon-Yew Trung, Tran Quang Wan, Changjin Wang, Huiliang Wang, Joseph Wang, Ming Wang, Sihong Wang, Ting Wang, Zhong Lin Weiss, Paul S. Wen, Hanqi Xu, Sheng Xu, Tailin Yan, Hongping Yan, Xuzhou Yang, Hui Yang, Le Yang, Shuaijian Yin, Lan Yu, Cunjiang Yu, Guihua Yu, Jing Yu, Shu-Hong Yu, Xinge Zamburg, Evgeny Zhang, Haixia Zhang, Xiangyu Zhang, Xiaosheng Zhang, Xueji Zhang, Yihui Zhang, Yu Zhao, Siyuan Zhao, Xuanhe Zheng, Yuanjin Zheng, Yu-Qing Zheng, Zijian Zhou, Tao Zhu, Bowen Zhu, Ming Zhu, Rong Zhu, Yangzhi Zhu, Yong Zou, Guijin Chen, Xiaodong Institute of Materials Research and Engineering (IMRE) Agency for Science Technology and Research (A*STAR) 2 Fusionopolis Way #08-03 Innovis Singapore 138634 Republic of Singapore；Innovative Centre for Flexible Devices (iFLEX) School of Materials Science and Engineering Nanyang Technological University Singapore 639798 Singapore Department of Biomedical Engineering University of Houston Houston Texas 77024 United States School of Electrical and Electronic Engineering Yonsei University Seoul 03722 Republic of Korea Department of Electrical and Computer Engineering The University of Texas at Austin Austin Texas 78712 United States；Microelectronics Research Center The University of Texas at Austin Austin Texas 78758 United States Department of Chemistry and Biochemistry California NanoSystems Institute and Department of Psychiatry and Biobehavioral Sciences Semel Institute for Neuroscience and Human Behavior and Hatos Center for Neuropharmacology University of California Los Angeles Los Angeles California 90095 United States Colloid Chemistry Department Max Planck Institute of Colloids and Interfaces 14476 Potsdam Germany Department of Chemical Engineering Stanford University Stanford California 94305 United States Laboratory of Organic Electronics Department of Science and Technology Campus Norrköping Linköping University 83 Linköping Sweden；Wallenberg Initiative Materials Science for Sustainability (WISE) and Wallenberg Wood Science Center (WWSC) SE-100 44 Stockholm Sweden Department of Materials Science and Engineering Stanford University Stanford California 94301 United States Department of Biomedical Engineering and Department of Materials Science and Engineering Carnegie Mellon University Pittsburgh Pennsylvania 15213 United States Department of Bioengineering University of California Los Angeles Los Angeles California 90095 United States School of Chemistry Chemical Engineering and Biotechnology Nanyang Technological University Singapore 637457

Humans rely increasingly on sensors to address grand challenges and to improve quality of life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are developed to overcome the limitations of conventional rigid counterparts. Despite rapid advancement in bench-side research over the last decade, the market adoption of flexible sensors remains limited. To ease and to expedite their deployment, here, we identify bottlenecks hindering the maturation of flexible sensors and propose promising solutions. We first analyze continued...challenges in achieving satisfactory sensing performance for real-world applications and then summarize issues in compatible sensor-biology interfaces, followed by brief discussions on powering and connecting sensor networks. Issues en route to commercialization and for sustainable growth of the sector are also analyzed, highlighting environmental concerns and emphasizing nontechnical issues such as business, regulatory, and ethical considerations. Additionally, we look at future intelligent flexible sensors. In proposing a comprehensive roadmap, we hope to steer research efforts towards common goals and to guide coordinated development strategies from disparate communities. Through such collaborative

关键词： soft materials mechanics engineering flexible electronics conformable sensors bioelectronics human-machine interfaces body area sensor networks technology translation sustainable electronics

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Enhanced removal of crystal violet using rawfava bean peels, its chemically activated carbon compared with commercial activated carbon

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Case Studies in Chemical and Environmental engineering 2024年 9卷

作者： Sh, Husien El-taweel, Reem M. Alrefaey, KhloodA. Labena, Ahmed Fahim, Irene Samy Said, Lobna A. Radwan, Ahmed G. School of Engineering and Applied Sciences Nile University Giza Egypt Industrial Engineering Program SESC Research Center Nile University Giza Egypt Egyptian Petroleum Research Institute (EPRI) Nasr City Cairo Egypt Nanoelectronics Integrated Systems Center (NISC) Nile University Giza Egypt Engineering Mathematics and Physics Dept. Faculty of Engineering Cairo University Giza 12613 Egypt

Crystal violet is a basic dye that is widely used by various industries, such as textiles and paints. These industries discharge their effluents, contaminated with crystal violet, into water streams, and these effluents have an adverse effect on aquatic organisms, the environment, and human health. Crystal violet is a basic dye that is widely used by various industries, such as textiles and paints. These industries discharge their effluents, contaminated with crystal violet, into water streams, and these effluents have an adverse effect on aquatic organisms, the environment, and human health. Hence, this paper is directed at studying the removal of crystal violet using environmentally friendly, cost-effective adsorbent materials such as raw fava bean (RFP-H₃F), and chemically activated carbon (H3F) in comparison to commercial activated carbon (CAC).Various characterization techniques are applied, such as XRD, FT-IR,and SEM analyses. Then, the process of optimizing is shown through some preliminary experiments and a Response Surface Methodology (RSM) experiment to find the best conditions for removing crystal violet efficiently. Results revealed that the raw fava bean peels and the commercial activated carbon have the maximum removal efficiency of 95 %, and 83 % respectively, after 180 min of contact time. It is hypothesized that raw fava bean peels (RFP) and chemically activated carbon using phosphoric acid RFP-H₃F will exhibit comparable efficiency in removing crystal violet when compared to commercial activated carbon (CAC). Various characterization techniques, including X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR),and scanning electron microscopy (SEM), are applied to analyze the properties of the adsorbent materials. Afterwards, the optimization process is displayed through some preliminary experiments followed by a Response Surface Methodology (RSM) experiment to obtain the optimum conditions, which achieve high

关键词： Adsorption ANN Crystal violet Dyes Fava bean Peels RSM

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Biological methane production coupled with sulfur oxidation in a microbial electrosynthesis system without organic substrates

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Journal of Environmental Sciences 2022年第6期34卷 68-78页

作者： Ha T.T.Dinh Hiromi Kambara Shuji Matsushita Yoshiteru Aoi Tomonori Kindaichi Noriatsu Ozaki Akiyoshi Ohashi Department of Civil and Environmental Engineering Graduate School of Advanced Science and EngineeringHiroshima University1-4-1KagamiyamaHigashihiroshimaHiroshima 739-8527Japan Faculty of Environment Ho Chi Minh City University of Natural Resources and Environment236 Le Van Sy1 WardTan Binh DistrictHo Chi Minh CityViet Nam Agricultural Technology Research Center Hiroshima Prefectural Technology Research Institute6869HaraHachihonmatsuHigashihiroshimaHiroshima 739-0151Japan Program of Biotechnology Graduate School of Integrated Sciences for LifeHiroshima University1-3-1KagamiyamaHigashihiroshimaHiroshima 739-8530Japan

Methane is produced in a microbial electrosynthesis system(MES) without organic substrates. However, a relatively high applied voltage is required for the bioelectrical *** this study, we demonstrated that electrotrophic methane production at the biocathode was achieved even at a very low voltage of 0.1 V in an MES, in which abiotic HS-oxidized to SO_(4)^(2-) at the anodic carbon-cloth surface coated with platinum powder. In addition, microbial community analysis revealed the most probable pathway for methane production from electrons. First, electrotrophic H_(2) was produced by syntrophic bacteria, such as Syntrophorhabdus, Syntrophobacter, Syntrophus, Leptolinea, and Aminicenantales, with the direct acceptance of electrons at the biocathode. Subsequently, most of the produced H_(2) was converted to acetate by homoacetogens, such as Clostridium and Spirochaeta 2. In conclusion,the majority of the methane was indirectly produced by a large population of acetoclastic methanogens, namely Methanosaeta, via acetate. Further, hydrogenotrophic methanogens,including Methanobacterium and Methanolinea, produced methane via H_(2).

关键词： Bioelectricity Homoacetogens Methane production Microbial electrosynthesis system Sulfur oxidation

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A review of coagulation explaining its definition, mechanism, coagulant types, and optimization models;RSM, and ANN

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Current Research in Green and Sustainable Chemistry 2023年 6卷

作者： El-taweel, Reem M. Mohamed, Nora Alrefaey, Khlood A. Husien, Sh Abdel-Aziz, A.B. Salim, Alyaa I. Mostafa, Nagwan G. Said, Lobna A. Fahim, Irene Samy Radwan, Ahmed G. School of Engineering and Applied Sciences Nile University Giza Egypt Industrial Engineering Program SESC Research Center Nile University Giza Egypt October High Institute for Engineering Technology Giza Egypt Environmental and Sanitary Engineering Division Public Works Department Faculty of Engineering Cairo University Giza Egypt Nanoelectronics Integrated Systems Center (NISC) Nile University Giza Egypt Engineering Mathematics and Physics Dept. Faculty of Engineering Cairo University Giza 12613 Egypt

The textile business is one of the most hazardous industries since it produces several chemicals, such as dyes, which are released into water streams with ef-fluents. For the survival of the planet's life and the advancement of humanity, water is a crucial resource. One of the anthropogenic activities that pollute and consume water is the textile industry. Thus, the purpose of the current effort is to Apply coagulation as a Physico-chemical and biological treatment strat-egy with different techniques and mechanisms to treat the effluent streams of textile industries. The discharge of these effluents has a negative impact on the environment, marine life, and human health. Therefore, the treatment of these effluents before discharging is an important matter to reduce their adverse ef-fect. Many physico-chemical and biological treatment strategies for contaminants removal from polluted wastewater have been proposed. Coagulation is thought to be one of the most promising physico-chemical strategies for removing con-taminants and colouring pollutants from contaminated water. Coagulation is accompanied by a floculation process to aid precipitation, as well as the collection of the created sludge following the treatment phase. Different commercial, and natural coagulants have been applied as a coagulants in the process of coagulation. Additionally, many factors such as;pH, coagulant dose, pollu-tants concentration are optimized to obtain high coagulants removal capacity. This review will discuss the coagulation process, coagulant types and aids in addition to the factors affecting the coagulation process. Additionally, a brief comparison between the coagulation process, and the other processes;princi-ple, advantages, disadvantages, and their efficiency were discussed throgh the review. Furthermore, it discusses the models and optimization techniques used for the coagulation process including response surface methodology (RSM), ar-tificial neural network (ANN), and several

关键词： Coagulants Coagulation Mathematical models optimization Textile Textile effluents

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Dinitrogen bonding induced metal-semiconductor transition leading to ultrastiffening in boron subnitride

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Physical Review B 2023年第18期108卷 L180103-L180103页

作者： Tengfei Xu Zhiyang Zheng Dominik Legut Ruifeng Zhang School of Materials Science and Engineering and Center for Integrated Computational Engineering (International Research Institute for Multidisciplinary Science) and Key Laboratory of High-Temperature Structural Materials & Coatings Technology (Ministry of Industry and Information Technology) Beihang University Beijing 100191 People's Republic of China IT4Innovations VSB-Technical University of Ostrava CZ-708 00 Ostrava Czech Republic Department of Condensed Matter Physics Faculty of Mathematics and Physics Charles University CZ-121 16 Prague Czech Republic

Extreme environments enable the discovery of atypical phases with enhanced properties and their transition mechanisms. Boron subnitride is a promising alternative to boron carbide/suboxide; however, its development is severely hampered by its long-standing unresolved crystal structure. Herein, by analyzing the pressure-dependent stabilities of the B-N system and scrutinizing several candidates against the available experimental results, the experimentally synthesized boron subnitride is identified as α-B6O-like R3¯mB6N, whose observed unique metallicity originates from the electron deficiency caused by the sp2-like hybridization of the N atoms that leaves nonbonding lone pairs lying in the 2pz orbitals. We further unveil that the electron-deficient R3¯m B6N undergoes an isopointal metal-semiconductor transition at 120 GPa, dominated by the unique local orbital population coupling between different homonuclear bonds. Here, breakage of the lone pairs resulting from the dinitrogen bonding compensates for the unoccupied bonding states of intericosahedra B-B bonds, thus converting it into the electron-precise B122−(N-N)2+. The strong N-N bond imparts R3¯mB6N the highest shear modulus among B12-based compounds (almost twice that of B6O) and serves as the main load-bearing unit resisting large plastic strain to produce superior strength. These findings substantially deepen our fundamental understanding of icosahedral boron-rich solids, and the underlying effect may contribute to fully grasping the changes in oxidation state and bonding pattern under high pressures.

关键词： Atomic orbital Chemical bonding Elastic modulus High-pressure studies Plastic deformation Crystal structures Electronic structure Density functional theory

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Experimental investigation of methyl-orange removal using eco-friendly cost-effective materials raw fava bean peels and their formulated physical, and chemically activated carbon

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Current Research in Green and Sustainable Chemistry 2023年 7卷

作者： Husien, Sh El-taweel, Reem M. Alrefaey, KhloodA. Labena, Ahmed Fahim, Irene Samy A Said, Lobna Radwan, Ahmed G. School of Engineering and Applied Sciences Nile University Giza Egypt Industrial Engineering Program SESC Research Center Nile University Giza Egypt Egyptian Petroleum Research Institute (EPRI) Nasr City Cairo Egypt Nanoelectronics Integrated Systems Center (NISC) Nile University Giza Egypt Engineering Mathematics and Physics Dept. Faculty of Engineering Cairo University Giza 12613 Egypt

The discharge of effluents from dye industries into water streams poses a significant environmental and public health risk. In response, eco-friendly adsorbents derived from agricultural waste, such as Fava Bean Peels (R–FBP), have been investigated as potential materials for the removal of such pollutants. In this study, R–FBP and their corresponding physical and chemically activated carbon (P-RFB-AC and C-FBP-AC) were synthesized using H₃PO₄ acid and characterized using FT-IR, and SEM analyses. An optimization process was conducted to determine the optimum conditions for achieving high Methyl Orange (M. Orange) removal efficiencies using the prepared materials, namely R–FBP, P-RFB-AC, and C-FBP-AC. The adsorption mechanism was examined by analyzing the isotherm and kinetics. The results revealed that the physical raw-activated carbon exhibited the highest removal efficiency of 96.8% compared to other materials. This outcome was achieved through the use of ANN combined with Moth Search Algorithm (MSA), which was found to be the most effective model for achieving the highest M. Orange removal efficiency from Physical raw fava bean activated carbon. Under parameters of 1000 mg/l M. Orange concentration, 2 g/l dose, 15 min contact time, and 120 rpm shaking, the best experimental and predicted removal efficiencies for physical-activated carbon fava bean rind were 96.8 RE%, 96.01 indicated RSM RE%, and 95.75 predicted ANN RE%. The highest experimental and predicted removal efficiencies for the H₃PO₄ chemical activated carbon fava bean peel were 94%RE. This study aimed to develop an economical solution for treating industrial wastewater contaminated with anionic M. Orange dye using raw fava bean peel and their generated activated carbon, in both physical and chemical forms. The Temkin and Langmuir isotherm models were found to best fit the data for raw fava bean peel, while Temkin agreed well with the data from physical-activat

关键词： Adsorption ANN Fava bean peels (FBP) Methyl orange RSM

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Risk-Based Critical Concentrations of Enteric Pathogens for Recreational Water Criteria and Recommended Minimum Sample Volumes for Routine Water Monitoring

SSRN

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SSRN 2024年

作者： Denpetkul, Thammanitchpol Pumkaew, Monchai Sittipunsakda, Oranoot Srathongneam, Thitima Mongkolsuk, Skorn Sirikanchana, Kwanrawee Department of Social and Environmental Medicine Faculty of Tropical Medicine Mahidol University Bangkok10400 Thailand Environmental Engineering and Disaster Management Program School of Multidisciplinary Mahidol University Kanchanaburi Campus Kanchanaburi71150 Thailand Research Laboratory of Biotechnology Chulabhorn Research Institute Bangkok10210 Thailand Center of Excellence on Environmental Health and Toxicology Ministry of Education Bangkok10400 Thailand

Concerns are rising about the contamination of recreational waters from human and animal waste, along with associated risks to public health. However, existing guidelines for managing pathogens in these environments have not yet adopted risk-based pathogen-specific criteria, which are essential to improve the protection of public health. This study aimed to establish risk-based critical concentration benchmarks for significant enteric pathogens, i.e., norovirus, rotavirus, adenovirus, Cryptosporidium spp., Giardia lamblia, Campylobacter spp., Salmonella spp., and Escherichia coli O157:H7. Applying a 0.036 risk benchmark to both marine and freshwater environments, the study identified the lowest critical concentrations for children, who are the most susceptible group. Norovirus, E. coli O157:H7, and Cryptosporidium presented lowest critical concentrations for virus, bacteria, and protozoa, respectively: 0.60 GC, 98.96 CFU, and 2.71 viable oocysts per 100 mL in freshwater for children. These values were then used to determine minimum sample volumes corresponding to different recovery rates for culture method, digital polymerase chain reaction (dPCR) and quantitative PCR (qPCR) methods. The results indicate that for children, norovirus required the largest sample volumes (5th percentile between 6.58 to 227.27 L, depending on water type and detection method), reflecting its low critical concentration and high potential for causing illness. In contrast, adenovirus and rotavirus required significantly smaller volumes (approximately 0.24 to 1.5 L), as did the bacteria and protozoa studied (200–300 mL and 3–3.5 L, respectively), based on a 10% recovery rate. Additionally, the presented risk-based framework could provide a model for establishing pathogen thresholds, potentially guiding the creation of extensive risk-based criteria for various pathogens in recreational waters, thus aiding public health authorities in decision-making, strengthening pathogen monitoring, and imp

关键词： Pathogens

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Review of activated carbon adsorbent material for textile dyes removal: Preparation, and modelling

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Current Research in Green and Sustainable Chemistry 2022年 5卷

作者： Husien, Sh El-taweel, Reem M. Salim, Alyaa I. Fahim, Irene Samy Said, Lobna A. Radwan, Ahmed G. School of Engineering and Applied Sciences Nile University Giza Egypt Industrial Engineering Program SESC Research Center Nile University Giza Egypt Nanoelectronics Integrated Systems Center (NISC) Nile University Giza Egypt Engineering Mathematics and Physics Dept. Faculty of Engineering Cairo University Giza 12613 Egypt

Water contamination with colours and heavy metals from textile effluents has harmed the ecology and food chain, with mutagenic and carcinogenic effects on human health. As a result, removing these harmful chemicals is critical for the environment and human health. Various standard physicochemical and biological treatment technologies are used;however, there are still some difficulties. Adsorption is described as a highly successful technology for removing contaminants from textile-effluents wastewater compared to other methods. Several adsorbent materials, including nanomaterials, natural materials, and biological biomasses, are identified as effective adsorbents for textile effluents. Activated carbon preparation from these different adsorbents is an excellent pre-treatment to remove the adsorption capacity. Therefore, through this study various adsorbent types, especially activated carbon adsorbents will be discussed in addition to the factors affecting adsorption and models applied for optimising the adsorption process. © 2022

关键词： Activated carbon Adsorption ANN Commercial Isotherm Kinetic Metaheurastic algorithms Natural RSM

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Delineation of groundwater potential areas using RS/GIS and geophysical methods: a case study from the western part of Iran

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Arabian Journal of Geosciences 2022年第21期15卷 1-19页

作者： Bagheri, Davoud Tizro, Abdollah Taheri Okhravi, Saeid Fryar, Alan Kazakis, Nerantzis Voudouris, Konstantinos Department of Science and Water Engineering Faculty of Agriculture Bu-Ali Sina University Hamada Iran Institute of Hydrology of the Slovak Academy of Sciences Bratislava Slovakia Department of Earth and Environmental Sciences University of Kentucky Lexington USA Laboratory of Engineering Geology and Hydrogeology Department of Geology Aristotle University of Thessaloniki Thessaloniki Greece UNESCO Center (Cat. II) for Integrated and Multidisciplinary Water Resources Management AUTH Thessaloniki Greece

Groundwater potential maps constitute a valuable tool for groundwater sustainable management in arid regions. In this study, a groundwater potential map was developed for the Asadabad plain (Iran). The method deployed remote sensing techniques and hierarchical analysis, while geoelectric data were used to verify the results of the study. The methodology used extracted information from thematic maps including lithology, the density of lineaments, drainage density, topography, slope, slope aspect, land use, distance from streams, distance from lineaments, rainfall, and air temperature. All different layers of information were classified as standard maps by expert judgment and field visits, and each category is ranked from 1 to 10 according to its degree of importance. Also, each layer is assigned an appropriate weight based on the groundwater potential using the hierarchical analysis process. The resulting map of the study area was quantitatively and qualitatively zoned into five classes: excellent, good, moderate, very low, and poor. The results obtained were compared with field electrical resistivity surveys and a high correlation was found. The results obtained from the groundwater potential map were validated by comparison with lithologic and water-level data, thus demonstrating the accuracy of the applied method.

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Electrochemical sensor based on CuO nanorods for the quantification of cyanide in mineral processing samples

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Journal of Industrial and engineering Chemistry 2025年

作者： Vilasó-Cadre, Javier E. Ramírez-Rodríguez, Alondra Hidalgo, Juan Santiago Reyes-Domínguez, Iván A. Cruz, Roel Thangarasu, Pandiyan Rodríguez-Torres, Israel Alonso-Torres, Sócrates González-Fernández, Lázaro A. Institute of Metallurgy. Autonomous University of San Luis Potosí Sierra Leona Av. 550 San Luis Potosí78210 Mexico "Babes-Bolyai" University Faculty of Chemistry and Chemical Engineering Department of Chemical Engineering Research Center of Electrochemistry and Non-Conventional Materials Arany Janos St.11 Cluj-Napoca 400028 Romania Insurgentes Sur Av. 1582 Mexico City03940 Mexico Ciudad Universitaria Mexico City04510 Mexico Multidisciplinary Postgraduate Program in Environmental Sciences Autonomous University of San Luis Potosí San Luis Potosí78000 Mexico

In this work, a CuO nanomaterial was synthesized and used for the development of electrochemical sensors for cyanide quantification in mineral flotation and leaching samples. The synthesis of tenorite nanorods (CuO NR) was performed by the chemical precipitation method. Two sensors were prepared: one by modifying a glassy carbon electrode using the drop-casting technique and the other by modifying a carbon paste electrode. The electrodes were optimized using response surface experimental designs. The modified glassy carbon electrode exhibited issues related to the destabilization of the CuO NR/Chitosan composite. Consequently, the carbon paste electrode was selected for the analytical validation and application in real samples. The analytical response was obtained in the range of 0.1 to 16.7 mmol/L. Quantification of real samples exhibited consistency with the volumetric method. The sensor demonstrated repeatability and reproducibility over a 30-day period. The interfering effect of a dithiophosphate collector on the electrochemical signal of cyanide was demonstrated. The electroactive area was calculated to be 0.0622 cm2, larger than that of the unmodified electrode. Diffusion was found to be the controlling process for the oxidation of cyanide at the electrode surface. In addition, a lower charge transfer resistance was found when the modified electrode was used. The sensor was demonstrated to facilitate the quantification of cyanide in complex samples with high solids content, which are commonly found in the mineral processing industry. © 2025 The Korean Society of Industrial and engineering Chemistry

关键词： Flotation

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