Journal of hazardous materials letters最新文献

Cyanide and chloroform detection through J-aggregates based aggregation induced emission probe with real sample applications 基于聚合诱导发射探针的氰化物和氯仿检测与实际样品应用

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-10-20 DOI: 10.1016/j.hazl.2024.100132

{"title":"Cyanide and chloroform detection through J-aggregates based aggregation induced emission probe with real sample applications","authors":"","doi":"10.1016/j.hazl.2024.100132","DOIUrl":"10.1016/j.hazl.2024.100132","url":null,"abstract":"<div><div>Isopthalamide based probe <strong>DPI</strong> has been synthesized by an easy two-step substitution reaction. Unique fluorescence properties of probe <strong>DPI</strong> were exploited for sensing of CNˉ and chloroform. Various spectroscopic techniques such as NMR, LC-MS, SEM, DLS, UV-<em>Vis</em>. and fluorescence spectroscopy in combination with DFT studies were used to confirm efficient detection of CN‾ through a non-covalent interaction of cyanide with probe. Furthermore, probe showed fluorescence emission at 360 nm which shifted significantly to 415 nm upon addition of water exhibiting unique AIE characteristics and formation of desired J-aggregates. Mechanistically, CN‾ and chloroform were selectively detected through fluorescence quenching with 9 nM and 0.2 % v/v limit of detection (LOD), respectively. Photoinduced electron transfer (PET) was proven to be involved as a sensing mechanism. Moreover, <strong>DPI</strong> exhibited interesting solvatochromism properties. <strong>DPI</strong> was proven to be a highly sensitive probe which showed solid-state and vapor phase on-field detection of CN‾. Similar sensing behavior of <strong>DPI</strong> probe towards CN‾ was seen in food and water samples.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dissolved elemental mercury accumulation by freshwater phytoplankton species: A pilot study 淡水浮游植物物种的溶解元素汞积累：试点研究

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-10-05 DOI: 10.1016/j.hazl.2024.100128

{"title":"Dissolved elemental mercury accumulation by freshwater phytoplankton species: A pilot study","authors":"","doi":"10.1016/j.hazl.2024.100128","DOIUrl":"10.1016/j.hazl.2024.100128","url":null,"abstract":"<div><div>Bioaccumulation of dissolved elemental mercury (DGM) by various organisms has been demonstrated, but no study has shown its uptake and sequestration by phytoplankton species. The present study aims to investigate the accumulation of mercury by phytoplankton species exposed to DGM. Diatoms (<em>Cyclotella meneghiniana</em> and <em>Navicula pelliculosa</em>) and green algae (<em>Chlamydomonas reinhardtii</em> and <em>Haematococcus pluvialis</em>) were exposed to constant high level of atmospheric gaseous Hg (∼7.7 µg m<sup>−3</sup>). Total mercury concentrations (THg) in the medium (dissolved fraction) and algae cells (cellular fraction) were determined using cold vapor atomic fluorescence spectroscopy. Results revealed a partitioning of Hg(0) between the atmosphere and phytoplankton cultures, with THg predominantly found in the algae cells. THg in the algae cultures decreased in the order: <em>C. reinhardtii</em> > <em>H. pluvialis</em> > <em>N. pelliculosa</em> > <em>C. meneghiniana</em>. However, the cellular concentration (mol cell<sup>−1</sup>) decreased in the order: <em>H. pluvialis</em> > <em>C. reinhardtii</em> > <em>C. meneghiniana</em> > <em>N. pelliculosa.</em> These results highlight species specificity in Hg accumulation upon exposure to DGM, further linked to the phytoplankton surface area. Our findings reveal for the first time that phytoplankton species significantly influence the partitioning of atmospheric Hg(0) in aquatic environments, with important implications for the understanding of the aquatic mercury cycle.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Kinetic modeling and optimization of triclosan adsorption onto coconut shell activated carbon 椰壳活性炭对三氯生的吸附动力学建模与优化

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-10-05 DOI: 10.1016/j.hazl.2024.100131

引用次数: 0

First evidence of microplastic-associated extended-spectrum beta-lactamase (ESBL)-producing bacteria in the Red River Delta, Vietnam 越南红河三角洲与微塑料相关的产广谱β-内酰胺酶（ESBL）细菌的首次证据

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-10-02 DOI: 10.1016/j.hazl.2024.100129

{"title":"First evidence of microplastic-associated extended-spectrum beta-lactamase (ESBL)-producing bacteria in the Red River Delta, Vietnam","authors":"","doi":"10.1016/j.hazl.2024.100129","DOIUrl":"10.1016/j.hazl.2024.100129","url":null,"abstract":"<div><div>This study investigated the relationship between MiPs, antibiotic resistance genes (ARGs), and water quality in the Red River Delta. MiPs were collected from water samples at four locations: Hanoi, Ha Nam, Nam Dinh, and Cat Ba Island. Bacteria isolated from MiPs and the surrounding water were analyzed for β-lactamase genes. Polyethylene terephthalate (PET) and polytridecanolactone (PTDL) exhibited notable correlations with coefficients with microbial abundance on MiPs. <em>Aeromonas</em> (99.2 % of all isolates) were the most common bacteria isolated from MiPs, with a fewer <em>Escherichia coli</em> (0.83 %). Of 207 bacterial strains isolated from microplastic, 23 (~11 % of total) were found to carry antibiotic resistance genes, mostly <em>bla</em><sub>TEM</sub> (13/23; 56.5 %), <em>bla</em><sub>SHV</sub> (9/23; 39.1 %) and <em>bla</em><sub>CTXM</sub>-9 (1/23; 4.3 %). All seven environmental factors measured were found to affect the distribution of ARGs and ARBs on MiP surfaces. Chlorophyll-a showed a strong positive correlation with ARB abundance, suggesting a potential link between primary productivity and bacterial colonization. This study is one of the first to report the association of MPs with antibiotic-resistant microbiota and genes. The presence of ARGs on MiPs in areas with high human population highlights the need for effective pollution management strategies to mitigate the risks associated with AMR.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142529682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of environmentally relevant concentrations of oxytetracycline in the emergence of antimicrobial resistance in Aeromonas hydrophila and Edwardsiella tarda 环境相关浓度的土霉素在嗜水气单胞菌和塔氏爱德华氏菌产生抗菌药耐药性中的作用

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-10-02 DOI: 10.1016/j.hazl.2024.100130

{"title":"The role of environmentally relevant concentrations of oxytetracycline in the emergence of antimicrobial resistance in Aeromonas hydrophila and Edwardsiella tarda","authors":"","doi":"10.1016/j.hazl.2024.100130","DOIUrl":"10.1016/j.hazl.2024.100130","url":null,"abstract":"<div><div>The study assessed the efficiency of <em>in-vitro</em> oxytetracycline (OTC) exposure on antimicrobial resistance (AMR) development in aquatic bacteria. <em>Aeromonas hydrophila</em> ATCC 49140 and <em>Edwardsiella tarda</em> ATCC 15947 were serially passaged to OTC for short and long durations. Short duration OTC exposure (30 min) at 0, 0.097 (0.25× Minimum Inhibitory Concentration: MIC), 0.195 (0.5× MIC) and 0.39 µg mL<sup>−1</sup> (1× MIC) elicited high mutation rate in <em>A. hydrophila</em> (10<sup>−4</sup>) and <em>E. tarda</em> (10<sup>−2</sup>). Serial passage exposure to inhibitory concentration of OTC (0.39 µg mL<sup>−1</sup>) reduced the zone of inhibition of nitrofurantoin (NIT) for <em>A. hydrophila</em> and of tetracycline, NIT and gentamicin for <em>E. tarda</em> to a clinically significant level. The upsurge in MICs of OTC was 4-folds (1.56 µg mL<sup>−1</sup>) and 8-folds (3.12 µg mL<sup>−1</sup>) in <em>A. hydrophila</em> and <em>E. tarda,</em> respectively during serial passage exposure to 0.097, 0.195 and 0.39 µg mL<sup>−1</sup> OTC. OTC exposure also increased the MICs of biocide triclosan (TCS) >4-folds (>100 µg mL<sup>−1</sup>) in <em>A. hydrophila</em> without any concentration-dependent pattern. This study shows that environmental OTC levels can drive bacterial mutation and AMR, potentially leading to cross-resistance to biocides like TCS. Reducing OTC use and improving disposal could help limit AMR spread through better antimicrobial management.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142417204","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perturbation of enzyme structure by nano-metal organic frameworks: A question mark on their safety-by-design? 纳米金属有机框架对酶结构的干扰：设计安全性的问号？

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-09-20 DOI: 10.1016/j.hazl.2024.100127

{"title":"Perturbation of enzyme structure by nano-metal organic frameworks: A question mark on their safety-by-design?","authors":"","doi":"10.1016/j.hazl.2024.100127","DOIUrl":"10.1016/j.hazl.2024.100127","url":null,"abstract":"<div><div>Our study investigates the interactions between nanoscale Metal-Organic Frameworks (nMOFs), specifically ZIF-8 and CuIm, and key enzymes: Acetylcholine Esterase (AChE), α-amylase. Using circular dichroism (CD) spectroscopy, we observed significant alterations in the secondary structures of these enzymes upon interaction with nMOFs. AChE showed a reduction in α-helix content from 20.1 % to a significantly lower value when exposed to 160 µg/mL of nMOFs, with a corresponding increase in β-sheet and other structural components. Enzymatic activity assays revealed that CuIm nMOFs decreased AChE activity by 67.08 % at the highest concentration tested (160 µg/mL). ZIF-8 also affected AChE activity significantly at this concentration. Similarly, α-amylase exhibited structural changes, with increasing concentrations of nMOFs leading to a near-total loss of secondary structure at 80 and 160 µg/mL. These structural changes were accompanied by a marked decrease in enzymatic activity, particularly with CuIm nMOFs showing the most substantial inhibitory effects. Our findings highlight the profound impact of nMOFs on enzyme structures and functions, emphasising the need for comprehensive assessments of nMOFs' potential toxicity and understanding the aspects of their safety-by-design.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000261/pdfft?md5=a99dc6613db8094ea85d05ed5b2751e9&pid=1-s2.0-S2666911024000261-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142310292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sustainable chromium ore processing residue (COPR) waste treatment with black soldier fly larvae (BSFL) 用黑兵蝇幼虫（BSFL）对铬矿加工残渣（COPR）废物进行可持续处理

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-09-19 DOI: 10.1016/j.hazl.2024.100126

引用次数: 0

Investigating the toxicological effects of nanomaterials in food packaging associated with human health and the environment 调查食品包装中的纳米材料对人类健康和环境的毒理学影响

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-09-12 DOI: 10.1016/j.hazl.2024.100125

{"title":"Investigating the toxicological effects of nanomaterials in food packaging associated with human health and the environment","authors":"","doi":"10.1016/j.hazl.2024.100125","DOIUrl":"10.1016/j.hazl.2024.100125","url":null,"abstract":"<div><p>Nanomaterials (NMs) have revolutionized food packaging by offering unique properties such as enhanced barrier functions, antimicrobial activity, and prolonged shelf life. However, concerns over the potential adverse effects of these materials on human health and the environment have prompted extensive research. This review explores the toxicological implications of NMs used in food packaging, focusing on their migration mechanisms, interactions with biological systems, and environmental impact. NMs, due to their small size and high surface area-to-volume ratio, can migrate from packaging materials into food under various conditions, potentially leading to human exposure through ingestion. Studies have highlighted the ability of certain NMs, such as silver nanoparticles (AgNPs), titanium dioxide nanoparticles (TiO<sub>2</sub> NPs), and zinc oxide nanoparticles (ZnO NPs), to induce oxidative stress, inflammation, genotoxicity, and cellular dysfunction in vitro and in vivo. Furthermore, the environmental release of NMs during manufacturing, use, and disposal stages poses risks to ecosystems and human health. This review synthesizes current knowledge, identifies research gaps, and discusses regulatory challenges associated with the safe use of NMs in food packaging. Future research directions are proposed to enhance the understanding of NM toxicity, improve risk assessment methodologies, and develop sustainable packaging alternatives. By addressing these issues, stakeholders can effectively manage the risks while harnessing the benefits of nanotechnology in food packaging innovation.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000248/pdfft?md5=247b71c3360475cb8185154b20477f7c&pid=1-s2.0-S2666911024000248-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142241870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the competitive transport of metformin and erythromycin in saturated sandy soil: Experimental investigation, modeling insights and implications on SDGs 揭示二甲双胍和红霉素在饱和砂质土壤中的竞争性迁移：实验研究、建模见解及对可持续发展目标的影响

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-09-10 DOI: 10.1016/j.hazl.2024.100124

{"title":"Unraveling the competitive transport of metformin and erythromycin in saturated sandy soil: Experimental investigation, modeling insights and implications on SDGs","authors":"","doi":"10.1016/j.hazl.2024.100124","DOIUrl":"10.1016/j.hazl.2024.100124","url":null,"abstract":"<div><p>The presence of metformin (MTN) and erythromycin (ETM) in groundwater is a growing global concern due to their persistence and toxicity. This study addresses a critical gap in understanding the fate and transport of these pharmaceutical and personal care products in saturated sandy soil columns at environmentally relevant concentrations, an underexplored area. The results show that MTN, due to its high mobility, appeared earlier in the soil column with a recovery rate exceeding 90 % and an adsorption coefficient (<em>K</em><sub><em>d</em></sub>) of 1.063 Lkg<sup>−1</sup>. In contrast, ETM, with a higher <em>K</em><sub><em>d</em></sub> value of 5.426 Lkg<sup>−1</sup>, exhibited delayed breakthrough and recovery of less than 15 %, indicating stronger adsorption potential. Desorption studies indicated a greater risk of MTN leaching into groundwater, while ETM remained strongly adsorbed to soil particles. Despite the limited organic matter content in sandy soil, a significant amount of ETM was adsorbed, suggesting sands' high adsorption capacity and potential for natural remediation. This research fills a knowledge gap regarding the adsorption capacity of sandy soils at environmentally relevant concentrations, providing essential insights for environmental risk assessments and groundwater contamination mitigation strategies, directly supporting Sustainable Development Goals 3 (Health and Well-being), 6 (Clean Water and Sanitation), and 14 (Life Below Water).</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000236/pdfft?md5=edb7b53d6db8b309bf3e67ed2508ccec&pid=1-s2.0-S2666911024000236-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142164376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crosslinked polyetherimide based electrospun membrane: Effect of fibre morphology on hot oil sorption 基于交联聚醚酰亚胺的电纺丝膜：纤维形态对热油吸附的影响

IF 6.6

Journal of hazardous materials letters Pub Date : 2024-09-06 DOI: 10.1016/j.hazl.2024.100123

{"title":"Crosslinked polyetherimide based electrospun membrane: Effect of fibre morphology on hot oil sorption","authors":"","doi":"10.1016/j.hazl.2024.100123","DOIUrl":"10.1016/j.hazl.2024.100123","url":null,"abstract":"<div><p>Handling hot oil spillage, particularly from oil refineries, petrochemical industry and automobiles is challenging and there have been limited solutions to address the issue. Polyetherimide (PEI) electrospun fibrous membranes were developed in this study by leveraging PEI's high-temperature stability to serve as promising materials for hot oil sorption. The morphology of the membrane forming fibers varied from circular to dumbbell shaped, by judicious choice of solvents of varying boiling points, to study the effect of fiber morphology on oil sorption capacity. Crosslinking of PEI membranes was carried out using ethylenediamine (EDA) to impart structural integrity and resiliency to the membranes. The PEI membrane composed of dumbbell-shaped fibers demonstrated an oil-sorption capacity of 25.4 ±1.5 g/g for engine oil at 150°C within one hour, outperforming a commercial polypropylene (PP) nonwoven absorbent, which failed and collapsed under the same high-temperature conditions. Enhanced oil sorption in the dumbbell-shaped fibrous membrane was achieved due to its lower tortuosity, aligned inter-fiber channels, and higher capillary pressure. Usefulness and sorption capacity of PEI based electrospun membranes may further be explored for controlling the oil spillage through introduction of specific surface features and functionalization.</p></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":null,"pages":null},"PeriodicalIF":6.6,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666911024000224/pdfft?md5=2aa49d9a4dc3b6594f4ef5597a502b4f&pid=1-s2.0-S2666911024000224-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0