Environmental Nanotechnology, Monitoring and Management最新文献

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Tracing potentially toxic elements and nutrient levels from extensive illegal mining using multivariate statistics, pollution indices and ecological assessments 利用多元统计、污染指数和生态评估追踪大量非法采矿中潜在的有毒元素和营养水平
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-01-17 DOI: 10.1016/j.enmm.2025.101043
Ebenezer Ebo Yahans Amuah , Bernard Fei-Baffoe , Lyndon Nii Adjiri Sackey , Raymond Webrah Kazapoe , Douti Biyogue Nang , Paul Dankwa , Benjamin Offei , John Bentil
{"title":"Tracing potentially toxic elements and nutrient levels from extensive illegal mining using multivariate statistics, pollution indices and ecological assessments","authors":"Ebenezer Ebo Yahans Amuah ,&nbsp;Bernard Fei-Baffoe ,&nbsp;Lyndon Nii Adjiri Sackey ,&nbsp;Raymond Webrah Kazapoe ,&nbsp;Douti Biyogue Nang ,&nbsp;Paul Dankwa ,&nbsp;Benjamin Offei ,&nbsp;John Bentil","doi":"10.1016/j.enmm.2025.101043","DOIUrl":"10.1016/j.enmm.2025.101043","url":null,"abstract":"<div><div>Mining activities have increased the levels of Potentially Toxic Elements (PTEs) PTEs contamination in soils, leading to major concern due to their potential risk. This study considered pollution levels of PTEs and their possible implications in an illegal mining site in southern Ghana during the ban on small-scale mining activities. Soil samples were also collected from residential and pristine areas as controls. Individual, complex and multi-elemental indices and exposure assessment were the assessment computations used. As, Hg, Pb, Sr and V had a significant relationship (0.05, χ<sup>2</sup> (4) = 50.61, <em>p</em> &lt; 0.001). Multiple comparisons indicated substantial differences between the following variable pairs: Pb-As, Pb-Hg, As-Sr, As-V, Hg-Sr, and Hg-V. Nutrient levels were significantly differences (0.05, χ<sup>2</sup> (4) = 54.41, <em>p</em> &lt; 0.001) with significant differences between N-K, N-Zn, N-Na, P-K, P-Na, K-Zn, and Zn-Na. The Robust Compositional Contamination Index (RCCI) analysis showed that the area was heavily impacted following 85 % of the samples ranging between high and highest pollution. A comparative assessment revealed that all the pollution indices followed a similar trend of pristine &lt; residential &lt; mining site, except for Mn and Sr where a pattern pristine &gt; residential &gt; mining with an elemental trend: Mn &lt; V &lt; Sr &lt; Zn &lt; Cu &lt; As &lt; Pb &lt; Hg. The indirect and poor relations between EC and N (r = 0.19), P (r = 0.36), K (r = −0.58), Zn (r = 0.37), Na (r = −0.08) and Ca (r = −0.50) indicates that the mined site had a poor water-soluble capacity of plant uptake of some essential elements. Pollution levels follow a clear trend from pristine to residential to mining areas, with notable impacts on nutrient levels and plant uptake capacity. The analysis showed significant differences in elemental concentrations between illegally mined and pristine areas, with p-values of 0.001 for As, Cu, Hg, Mn, Pb, Sr, and Zn, and 0.003 for V, indicating that illegal mining has substantially elevated levels of these toxic metals. Immediate intervention and sustainable management are critical to address these environmental and ecological risks.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101043"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143103969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Environmentally friendly synthesis of gold nanoparticles at room temperature for chlorpyrifos-methyl detection in water samples 室温下环境友好合成金纳米颗粒用于水样中甲基毒死蜱的检测
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-05-23 DOI: 10.1016/j.enmm.2025.101081
Ángela Yanina Aguilera , Yasmin Safe , Sára Doubravská , Valeria Springer
{"title":"Environmentally friendly synthesis of gold nanoparticles at room temperature for chlorpyrifos-methyl detection in water samples","authors":"Ángela Yanina Aguilera ,&nbsp;Yasmin Safe ,&nbsp;Sára Doubravská ,&nbsp;Valeria Springer","doi":"10.1016/j.enmm.2025.101081","DOIUrl":"10.1016/j.enmm.2025.101081","url":null,"abstract":"<div><div>In this study, a facile synthesis of gold nanoparticles (AuNPs) is achieved through an environmentally friendly method in less than 2 min, using ascorbic acid and pentetic acid as reducing and stabilizing agents, under alkaline conditions at room temperature. The effects of the main experimental parameters on the synthesis performance were analyzed using response surface methodology. The obtained particles, spherical in shape and with average size of 9.2 nm, were tested as sensor for determination of chlorpyrifos-methyl (CPM), an organophosphate insecticide widely used in agriculture practices and households, which represent a major concern for the environment and human health. CPM was determined through the changes on the localized surface plasmon resonance (LSPR) band of AuNPs at 527 nm. Under optimal conditions, the method was evaluated in the concentration range between 5.00 and 40.0 μg L<sup>-1</sup>, with R<sup>2</sup> &gt; 0.98, limit of detection of 3.79 µg L<sup>-1</sup> and RSD values lower than 6.5 %. The applicability of this methodology for the analysis of real samples, including river water and well water, was tested with satisfactory recovery values (84.0–––98.8 %). Besides, the practicality and functionality of the proposed method were assessed by the Blue Applicability Grade Index (BAGI), a new metric tool developed in 2023, with an outstanding performance.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101081"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144138236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Graphene Oxide@4-(2-Aminoethyl)Benzo-12-Crown-4 Grafted- PVDF/Polyamide nanocomposite for water treatment 水处理用石墨烯Oxide@4-(2-氨基乙基)苯并-12冠-4接枝- PVDF/聚酰胺纳米复合材料
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-01-30 DOI: 10.1016/j.enmm.2025.101050
Khaled M. Ossoss , Abbas A. Abdullahi , Shaikh A. Ali , Tawfik A. Saleh
{"title":"Graphene Oxide@4-(2-Aminoethyl)Benzo-12-Crown-4 Grafted- PVDF/Polyamide nanocomposite for water treatment","authors":"Khaled M. Ossoss ,&nbsp;Abbas A. Abdullahi ,&nbsp;Shaikh A. Ali ,&nbsp;Tawfik A. Saleh","doi":"10.1016/j.enmm.2025.101050","DOIUrl":"10.1016/j.enmm.2025.101050","url":null,"abstract":"<div><div>Separation techniques based on membrane technology are crucial due to high efficiency, good durability, and mechanical stability. The separation process can be enhanced by improving the separation efficiency for heavy metals and hydrocarbons and the surface wettability of membranes. Herein, the dopamine crown ether was first synthesized. <sup>1</sup>H NMR, <sup>13</sup>C NMR, and <sup>15</sup>N NMR spectra confirmed the formation of dopamine crown ether. This compound was then grafted on the graphene oxide via nucleophilic addition where amine interacted with the epoxy of the graphene. This was achieved by covalent bonding of GO with dopamine crown ether moieties through a chemical grafting reaction. The obtained modified graphene (GO@12-C-4) was then embedded into the polyamide via interfacial polymerization onto the polyvinylidene fluoride (PVDF) membrane support. The polyamide layer (PAm) with nanocomposite of graphene oxide@12-Crown-4 (GO@12-C-4) adjusted the surface of the membrane. The influence of the PAm and GO@12-C-4 on the structure, and morphology of the GO@12-C-4-g- PAm/PVDF membrane was investigated. Fourier Transform Infrared (FTIR) spectroscopy and X-ray diffraction results indicate the successful preparation. Scanning Electron Microscopy (SEM) was used to evaluate the membrane surface morphology. When it was used in water treatment, the prepared membrane was very stable under an operating pressure of 300 kPa with 23.8 L.m<sup>-2</sup>h<sup>−1</sup> flux. The membrane showed a rejection of about 99 % for hydrocarbons (pentane, toluene, hexadecane, and isooctane), and over 90 % for the tested heavy metals (lead, cobalt, and strontium). It showed also a good rejection of salts. The results indicated the comparable performance of the reported new membrane compared with those reported in the literature. This study provides new insights into surface transformation to advance PVDF membranes’ flux and separation properties in water purification.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101050"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143402574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green synthesis approach on fabrication of TiO2 nanoparticle using peel extract of Baccaurea racemosa for photocatalytic degradation of Acid Red-185 用总状巴氏菌皮提取物制备光催化降解酸性红-185的TiO2纳米颗粒的绿色合成方法
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-04-26 DOI: 10.1016/j.enmm.2025.101074
Deliza , Sri Lungguh Rahayu , Agus Rimus Liandi , Reza Audina Putri , Safni Safni
{"title":"Green synthesis approach on fabrication of TiO2 nanoparticle using peel extract of Baccaurea racemosa for photocatalytic degradation of Acid Red-185","authors":"Deliza ,&nbsp;Sri Lungguh Rahayu ,&nbsp;Agus Rimus Liandi ,&nbsp;Reza Audina Putri ,&nbsp;Safni Safni","doi":"10.1016/j.enmm.2025.101074","DOIUrl":"10.1016/j.enmm.2025.101074","url":null,"abstract":"<div><div>When it comes to fabricating metal oxide nanoparticles (NPs), green synthesis stands out as a dependable, sustainable, eco-friendly, and remarkable substitute for the more effective and classical chemical processes. This study prepared and investigated green synthesis on fabrication of titanium dioxide nanoparticles (TiO<sub>2</sub> NPs) utilizing peel extract of <em>Baccaurea racemosa</em> and evaluated its photocatalytic activity. The XRD patterns demonstrated the highly crystalline structure of anatase TiO<sub>2</sub> with nanocrystallite size obtained about 8 nm. FESEM image confirmed spherical-shaped of TiO<sub>2</sub> with nanosized about 32 nm and showed that prepared TiO<sub>2</sub> was a stable particle from zeta potential data. The phytochemical components in the peel extract were in responsibility of the capping and reducing agents in the production of TiO<sub>2</sub>, as indicated by the FTIR spectra. This study showed that <em>Baccaurea racemosa</em> waste may be a viable reducing and capping agent in synthesis of TiO<sub>2</sub>-NPs. Furthermore, the prepared TiO<sub>2</sub> exhibited high photocatalytic activity and 99 % degraded the Acid Red-185 dye which fitted pseudo first order kinetics.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101074"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143886840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Butachlor contamination in surface water and sediment: Assessing human health, ecological risks, and environmental implications of the Bontanga irrigation scheme in the Northern region of Ghana 地表水和沉积物中的丁草胺污染:评估加纳北部地区Bontanga灌溉计划的人类健康、生态风险和环境影响
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-04-22 DOI: 10.1016/j.enmm.2025.101073
Mohammed Alhassan, Gerheart Winfred Ashong, Boansi Adu Ababio, Edward Ebow Kwaansa–Ansah
{"title":"Butachlor contamination in surface water and sediment: Assessing human health, ecological risks, and environmental implications of the Bontanga irrigation scheme in the Northern region of Ghana","authors":"Mohammed Alhassan,&nbsp;Gerheart Winfred Ashong,&nbsp;Boansi Adu Ababio,&nbsp;Edward Ebow Kwaansa–Ansah","doi":"10.1016/j.enmm.2025.101073","DOIUrl":"10.1016/j.enmm.2025.101073","url":null,"abstract":"<div><div>The Bontanga Irrigation Scheme in Ghana’s Kumbungu District, vital for local agriculture, faces significant ecological and health risks from Butachlor, an herbicide used in rice plantations. This study aimed to evaluate the physicochemical parameters of surface water, measure Butachlor concentrations in surface water and sediment, assess ecological risks, and estimate human health effects. A total of 100 water samples, 50 sediment samples were collected, and 50 farmers were interviewed about pesticide use. Physicochemical parameters such as pH, total dissolved solids, electrical conductivity, temperature, and turbidity were measured using standard analytical methods. Butachlor levels in surface water and sediment were determined using gas chromatography-mass spectrometry (GC–MS) and liquid chromatography-mass spectrometry (LC-MS). Results indicated that all physicochemical parameters in the water samples were within WHO limits. However, Butachlor concentrations ranged from 4.74 µg/L to 118.85 µg/L, exceeding the EFSA threshold of 0.5 µg/L, while sediment samples were below the detection limit of 0.01 mg/L. The toxic unit (TU) method revealed a medium acute risk to algae (0.28) and fish (0.13) and a low acute risk to aquatic invertebrates (0.02). The risk quotient (RQ) method indicated a high chronic risk to aquatic biota in surface water, though the non-carcinogenic health risk (HQ) to humans was minimal (HQ &lt; 1). Butachlor residues may pose significant health risks, including neurological, respiratory, and reproductive disorders. This study recommends implementing Integrated Pesticide Management policies, developing pest-resistant plant species, proper disposal of pesticide containers, and educating farmers on pesticide usage. Future research should focus on Butachlor’s long-term effects on aquatic biota, alternative pest control strategies, and measures to reduce residues, protecting both wildlife and human health.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101073"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143876503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Photocatalytic degradation of antibiotics using Cu doped-SnO2/CQDs nanocomposites Cu掺杂sno2 /CQDs纳米复合材料光催化降解抗生素
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-02-11 DOI: 10.1016/j.enmm.2025.101052
L.A.S. Adolf Marvelraj, V.S. Priya
{"title":"Photocatalytic degradation of antibiotics using Cu doped-SnO2/CQDs nanocomposites","authors":"L.A.S. Adolf Marvelraj,&nbsp;V.S. Priya","doi":"10.1016/j.enmm.2025.101052","DOIUrl":"10.1016/j.enmm.2025.101052","url":null,"abstract":"<div><div>In this study, a copper-doped tin oxide/carbon quantum dot (CuSCs) nanocomposite was developed and applied for the photocatalytic degradation of antibiotics, specifically tetracycline (TCH) and sulfamethazine (SMT). The nanocomposite was characterized by the presence of metallic, carboxyl, and hydroxyl functional groups, with copper and CQDs uniformly distributed on the SnO<sub>2</sub> surface. The incorporation of Cu reduced the bandgap of the material, enhancing its visible-light absorption and photocatalytic activity. At an optimal dose of <em>40 mg/100 mL</em>, the nanocomposite achieved <em>100 %</em> degradation of TCH and <em>72 %</em> degradation of SMT within <em>120 min</em>. The variation in degradation efficiency was attributed to reactive species generated during photocatalysis, which preferentially disrupted the benzene ring in TCH over the sulfur-nitrogen bond in SMT. Maximum degradation was observed at an initial antibiotic concentration of <em>10 ppm</em>. Light absorption by the solution was found to limit the production of oxidizing species, while pH optimization studies showed the highest degradation efficiencies at neutral pH (<em>6.7–7.0</em>). High-performance liquid chromatography-mass spectrometry (HPLC-MS) identified possible TCH degradation pathways, and mineralization experiments demonstrated a <em>47 %</em> reduction in total organic carbon (TOC) for TCH within <em>120 min</em>. Reactive species trapping experiments revealed that h<sup>+</sup> and O<sub>2</sub>•<sup>−</sup> were the primary contributors to TCH degradation. These findings highlight the potential of CuSCs nanocomposites for the efficient degradation of antibiotic pollutants under visible-light irradiation.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101052"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422307","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The prospect of using polyvinyl chloride with -n-hydroxyl amine, a metal binding agent, to adsorb uranium from its aqueous solution 探讨了聚氯乙烯与金属结合剂-正羟胺吸附水溶液中铀的前景
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-02-15 DOI: 10.1016/j.enmm.2025.101055
Abd El-Hakeim T. Kandil , Bahig M. Atia , Farida M.S.E. El-Dars , Mohamed Y.M. Hussein , Mohamed F. Cheira
{"title":"The prospect of using polyvinyl chloride with -n-hydroxyl amine, a metal binding agent, to adsorb uranium from its aqueous solution","authors":"Abd El-Hakeim T. Kandil ,&nbsp;Bahig M. Atia ,&nbsp;Farida M.S.E. El-Dars ,&nbsp;Mohamed Y.M. Hussein ,&nbsp;Mohamed F. Cheira","doi":"10.1016/j.enmm.2025.101055","DOIUrl":"10.1016/j.enmm.2025.101055","url":null,"abstract":"<div><div>Polyvinyl chloride-based N-hydroxyl amine (PVC-NHA) was demonstrated as a straightforward and innovative way to remove U(VI) from solutions. The PVC-NHA composite was exposed to exact testing using various techniques, including FT-IR, TGA, BET, <sup>1</sup>H NMR, SEM-EDX, <sup>13</sup>C NMR, and GC–MS assessments, all of which demonstrated the successful preparation of PVC-NHA. The specifications for this composite were accurately carried out, guaranteeing a good result. The optimization of various experimental parameters led to the refinement of measurements such as pH, temperature, agitation time, starting U(VI) concentration, interfering ions, PVC-NHA composite dose, and eluting agents. The optimization adjustments were gained at a temperature of 25 °C, a pH of 3.5, 15 min agitation time, and 0.63 × 10<sup>-3</sup> mol/L U(VI). The PVC-NHA composite exhibited an impressive maximum uptake capacity of 63 mg/g. This uptake capacity was equivalent to a remarkable 126 mg/L of U(VI) ions. The sorption isotherm modelling showed that Langmuir’s model fitted the practical results quite well, which was superior to the performance of the Freundlich model. The theoretical value obtained from Langmuir’s model is 61.7 mg/g, which closely supports the experimental rate of 63 mg/g. Based on U(VI) kinetic adsorption modelling, the adsorption reaction of U(VI) and PVC-NHA could be accurately illustrated by mixed pseudo-first and second-order kinetic modelling. According to thermodynamics, the adsorption process was spontaneous, exothermic, and highly favorable at tiny temperatures. Notably, the loaded composite could be efficiently eluted using 1 M H<sub>2</sub>SO<sub>4</sub>, achieving a remarkable 99 % efficiency rate from an economic standpoint. The PVC-NHA composite exposed excellent selectivity towards most interfering ions, demonstrating a high tolerance limit.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101055"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143430279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Highly sensitive electrochemical sensing of fipronil using a ZnO/Graphene@C-dots hybrid nanocomposite ZnO/Graphene@C-dots杂化纳米复合材料对氟虫腈的高灵敏度电化学传感
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-04-03 DOI: 10.1016/j.enmm.2025.101067
La Ode Agus Salim , Paulina Taba , Muhammad Zakir , Muhammad Nurdin , Abdul Wahid Wahab , Dahlang Tahir , St. Fauziah , Akrajas Ali Umar
{"title":"Highly sensitive electrochemical sensing of fipronil using a ZnO/Graphene@C-dots hybrid nanocomposite","authors":"La Ode Agus Salim ,&nbsp;Paulina Taba ,&nbsp;Muhammad Zakir ,&nbsp;Muhammad Nurdin ,&nbsp;Abdul Wahid Wahab ,&nbsp;Dahlang Tahir ,&nbsp;St. Fauziah ,&nbsp;Akrajas Ali Umar","doi":"10.1016/j.enmm.2025.101067","DOIUrl":"10.1016/j.enmm.2025.101067","url":null,"abstract":"<div><div>This study presents the development of a novel electrochemical sensor for the ultrasensitive detection of fipronil, a widely used pesticide, utilizing a hybrid nanocomposite material consisting of graphene (Gr), zinc oxide nanorods (ZnO NR), and carbon dots (C-dots). The hybrid nanocomposite, GZC (Graphene-ZnO@C-dots), was synthesized through a microwave-assisted method, leveraging the distinct physicochemical properties of each component to significantly enhance sensor performance. Electrochemical analysis conducted via cyclic voltammetry (CV) revealed a marked improvement in electron transfer efficiency and redox behavior compared to unmodified graphene electrodes, attributed to the synergistic interaction among ZnO NR, C-dots, and graphene. The GZC-based electrode demonstrated exceptional sensitivity in detecting fipronil, achieving an impressively low limit of detection (LOD) of 0.00490 µg/L and a limit of quantification (LOQ) of 0.01633 µg/L, outperforming numerous previously reported sensors. A strong linear correlation (R<sup>2</sup> = 0.9931) was observed between the oxidation peak current and fipronil concentration, indicating excellent analytical performance. Additionally, the sensor exhibited high stability and reproducibility, with a relative standard deviation (RSD) of 0.26 % over 20 consecutive measurements. Validation using a commercial pesticide sample confirmed the sensor’s ability to detect fipronil at trace levels with high accuracy. Moreover, the Horwitz Ratio (HorRat) of 0.024 underscores the superior reproducibility of the sensor, well below the theoretical threshold. The GZC nanocomposite electrode provides a reliable, efficient, and highly sensitive platform for detecting fipronil in environmental samples, showcasing its potential in environmental monitoring to enhance food safety and environmental health through early pesticide residue detection.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101067"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143807402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antibiotic contamination in wastewater treatment plant effluents: Current research and future perspectives 污水处理厂流出物中的抗生素污染:研究现状和未来展望
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-01-20 DOI: 10.1016/j.enmm.2025.101047
Parnika Mishra , Gyanendra Tripathi , Vaishnavi Mishra , Talat Ilyas , Irum , Saba Firdaus , Suhail Ahmad , Alvina Farooqui , Neelam Yadav , Sarvesh Rustagi , Sheikh Shreaz , Rajeshwari Negi , Ajar Nath Yadav
{"title":"Antibiotic contamination in wastewater treatment plant effluents: Current research and future perspectives","authors":"Parnika Mishra ,&nbsp;Gyanendra Tripathi ,&nbsp;Vaishnavi Mishra ,&nbsp;Talat Ilyas ,&nbsp;Irum ,&nbsp;Saba Firdaus ,&nbsp;Suhail Ahmad ,&nbsp;Alvina Farooqui ,&nbsp;Neelam Yadav ,&nbsp;Sarvesh Rustagi ,&nbsp;Sheikh Shreaz ,&nbsp;Rajeshwari Negi ,&nbsp;Ajar Nath Yadav","doi":"10.1016/j.enmm.2025.101047","DOIUrl":"10.1016/j.enmm.2025.101047","url":null,"abstract":"<div><div>Antibiotics are among the most important discoveries in medicine and have revolutionized human therapy. Antibiotics are used extensively in many different fields apart from medicine. The development of antibiotic resistance in ecosystems is mostly caused by the extensive use of antibiotics in aquaculture and agriculture to promote growth while minimizing disease. Insufficient metabolism in humans and animals causes a large-scale release of antibiotics and their metabolites into various environmental compartments, which in turn increases the resistance of bacterial infections. Although the use of antibiotics has reduced the number of deaths from bacterial illnesses in poor countries, the hazards connected with antibiotic pollution are still having a significant impact on humanity’s standard of life. The incomplete and undegradable breakdown of antibiotics discharged into the environment causes antibiotic pollution, and bioremediation processes is a challenging procedure. Inappropriate disposal of pharmaceutical waste contributes to an increase in the content of antibiotics in water bodies. Although they are prohibited in European Union (EU) nations including Europe, Sweden, and Namibia, antibiotics are still used in China and India as growth promoters in animal husbandry to increase feeding efficiency. The misuse of antibiotics in agriculture and healthcare is linked to environmental and public health problems, which are exacerbated by antibiotic residues in wastewater that lead to the creation of antibiotic resistant bacteria (ARB). Effective wastewater management is necessary to reduce ARB and antibiotic resistance gene pollution, which calls for advances in treatment technology and cautious antibiotic use. Considering the increasing problems related to antibiotic usage, these methods must be used to safeguard human health and preserve environmental integrity. Keeping in mind, the current review focusses on antibiotics sources, potential degradation processes, health consequences, and strategies of bacterial antibiotic resistance.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101047"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143104515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Green synthesis of metal oxide nanoparticles using plant extracts: A sustainable approach to combat antimicrobial resistance 利用植物提取物绿色合成金属氧化物纳米颗粒:对抗抗菌素耐药性的可持续方法
Environmental Nanotechnology, Monitoring and Management Pub Date : 2025-06-01 Epub Date: 2025-04-03 DOI: 10.1016/j.enmm.2025.101066
Sathyabama Balaji , Muthu Senthil Pandian , Ramasamy Ganesamoorthy , Thirugnanasambandham Karchiyappan
{"title":"Green synthesis of metal oxide nanoparticles using plant extracts: A sustainable approach to combat antimicrobial resistance","authors":"Sathyabama Balaji ,&nbsp;Muthu Senthil Pandian ,&nbsp;Ramasamy Ganesamoorthy ,&nbsp;Thirugnanasambandham Karchiyappan","doi":"10.1016/j.enmm.2025.101066","DOIUrl":"10.1016/j.enmm.2025.101066","url":null,"abstract":"<div><div>The green synthesis of metal oxide nanoparticles using plant extracts has emerged as a sustainable and eco-friendly approach to combat antimicrobial resistance. Bio-inspired synthesis is an innovative approach miming natural processes to create advanced materials with unique properties. This method leverages biological principles and templates to guide the synthesis of nanoparticles, polymers, and other materials. The resulting materials often exhibit enhanced performance, biocompatibility, and sustainability. This method leverages the natural reducing, capping, and stabilizing agents found in plant extracts to synthesize nanoparticles, avoiding the use of hazardous chemicals. This study explores the bio-inspired synthesis of metallic and non-metallic nanoparticles, focusing on their potential application bio-inspireds in various fields, including medicine, energy storage, and environmental remediation. By understanding and replicating nature’s strategies, bio-inspired synthesis offers a promising pathway to develop next-generation materials with improved functionality and reduced environmental impact. The development of nanoparticles (NPs) having antibacterial action, like metal oxide nanoparticles (MONPs), is made possible by nanotechnology. Because MONPs can interact with multiple biological components and suppress microbial growth, they offer a potential solution to overcome pathogenicity or antimicrobial resistance. The overview of the review provides burgeoning research surrounding the green synthesis of different nanoparticles utilizing various plant extracts. It provides the antimicrobial efficacy of nanoparticles, including zinc oxide (ZnO), titanium dioxide (TiO<sub>2</sub>), iron oxide (FeO), copper oxide (CuO), and nickel oxide (NiO), at different concentrations against different bacterial strains. Furthermore, the mechanism underlying the antimicrobial activity of these nanoparticles was discussed. The findings underscore the importance of sustainable nanotechnology in developing effective antimicrobial agents and promoting environmental sustainability.</div></div>","PeriodicalId":11716,"journal":{"name":"Environmental Nanotechnology, Monitoring and Management","volume":"23 ","pages":"Article 101066"},"PeriodicalIF":0.0,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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