Journal of hazardous materials letters最新文献

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Visualization and spatial mapping of PFAS in the edible storage root of radish
IF 6.6
Journal of hazardous materials letters Pub Date : 2025-02-01 DOI: 10.1016/j.hazl.2025.100141
Yuwei Zuo, Weilan Zhang
{"title":"Visualization and spatial mapping of PFAS in the edible storage root of radish","authors":"Yuwei Zuo,&nbsp;Weilan Zhang","doi":"10.1016/j.hazl.2025.100141","DOIUrl":"10.1016/j.hazl.2025.100141","url":null,"abstract":"<div><div>Plants, as key components of trophic networks, play a critical role in the bioaccumulation of PFAS and their transfer to higher trophic levels. This study introduces an innovative methodology using timsTOF fleX MALDI-2 to visualize the spatial distribution of PFAS in plant tissues. Radish was selected as the model plant due to its global popularity as a widely consumed vegetable. DAN (1,5-diaminonaphthalene) was used as the MALDI matrix, and the mass spectrometry operating conditions were optimized to acquire the best PFAS signals. The results show that long-chain PFAS predominantly accumulated in the xylem of the edible storage root, where their high hydrophobicity limits upward translocation. In contrast, short-chain PFAS and PFOA exhibited stronger signals in the cortex and periderm, likely due to alternative transport pathways. This differential distribution highlights the significant influence of PFAS physicochemical properties, such as chain length and hydrophobicity, on their in-planta transport mechanisms. By precisely mapping PFAS within plant tissues, this study provides a powerful tool for identifying high-risk edible tissues and assessing human exposure risks through PFAS-contaminated crops. It also reinforces the urgent need for sustainable remediation strategies to reduce PFAS levels in agricultural systems, thereby safeguarding food safety, ecosystem health, and human well-being.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"6 ","pages":"Article 100141"},"PeriodicalIF":6.6,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169644","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
Elevated concentrations of quaternary ammonium compounds in childcare centers: A pilot study
IF 6.6
Journal of hazardous materials letters Pub Date : 2025-01-02 DOI: 10.1016/j.hazl.2024.100138
Yao Cheng , Zhong Lv , Erika Schreder , Min Hu , Abby Mutic , Guomao Zheng , Amina Salamova
{"title":"Elevated concentrations of quaternary ammonium compounds in childcare centers: A pilot study","authors":"Yao Cheng ,&nbsp;Zhong Lv ,&nbsp;Erika Schreder ,&nbsp;Min Hu ,&nbsp;Abby Mutic ,&nbsp;Guomao Zheng ,&nbsp;Amina Salamova","doi":"10.1016/j.hazl.2024.100138","DOIUrl":"10.1016/j.hazl.2024.100138","url":null,"abstract":"<div><div>Quaternary ammonium compounds (QACs) are used as antimicrobials, preservatives, and antistatic agents in cleaning, disinfecting and personal care products, and textiles. High levels of QACs have been found in indoor dust in residential homes; however, there is limited information on QAC exposure in non-residential environments serving sensitive populations, such as childcare centers. In this study, we investigated the occurrence of QACs, including benzylalkyldimethyl ammonium compounds (BACs), dialkyldimethylammonium compounds (DADMACs), and alkyltrimethylammonium compounds (ATMACs), in dust from childcare centers and estimated daily intake of QACs by toddlers in chidlcare via dust ingestion. Nineteen QACs were detected in dust with a median total QAC concentration (ΣQAC) of 150 μg/g. BACs were the most abundant QAC group found at concentrations ranging from 2.67 to 1370 μg/g (median 90.4 μg/g) and constituted 64 % of the ΣQAC concentrations. The QAC levels in dust from childcare centers were significantly higher than concentrations previosly reported in homes. The EDIs for BACs, DADMACs, and ATMACs via dust ingestion calculated based on the 95th percentile concentrations in childcare dust were up to 30 times higher than those for toddlers in residential homes. These findings demonstrate high QAC exposure in childcares, posing significant early-life exposure for toddlers.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"6 ","pages":"Article 100138"},"PeriodicalIF":6.6,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169641","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
No traces of emerging and priority organic pollutants in the muscles of Procambarus clarkii suggest the feasibility of its regulated and sustainable control from uncontaminated environments
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-12-30 DOI: 10.1016/j.hazl.2024.100140
Dario Savoca , Vincenzo Arizza , Gaetano Cammilleri , Leonardo Cerasino , Antonella Maccotta , Federico Marrone , Licia Pantano , Nico Salmaso , Francesco Paolo Faraone
{"title":"No traces of emerging and priority organic pollutants in the muscles of Procambarus clarkii suggest the feasibility of its regulated and sustainable control from uncontaminated environments","authors":"Dario Savoca ,&nbsp;Vincenzo Arizza ,&nbsp;Gaetano Cammilleri ,&nbsp;Leonardo Cerasino ,&nbsp;Antonella Maccotta ,&nbsp;Federico Marrone ,&nbsp;Licia Pantano ,&nbsp;Nico Salmaso ,&nbsp;Francesco Paolo Faraone","doi":"10.1016/j.hazl.2024.100140","DOIUrl":"10.1016/j.hazl.2024.100140","url":null,"abstract":"<div><div>A monitoring of organic contaminants in the muscles of the <em>Procambarus clarkii</em> and environmental samples of water and sediment was conducted in three Sicilian wetlands (Italy). The substances investigated in the biological samples were per- and polyfluoroalkyl substances (PFAS), phthalic acid esters (PAEs), pesticides, antibiotics, and microcystins (MCs), all of which were below the detection limit. Given that the Louisiana red swamp crayfish is considered a bioaccumulator, the results of this study indicate that these environments are not significantly contaminated by the selected pollutants. Furthermore, the study suggests the potential uses of the edible portions of this alien species. Despite <em>P. clarkii</em> cannot be marketed in several countries, including Italy, it is possible that the animal biomass obtained in the frame of the monitoring, control and eradication activities carried out by local authorities, could be exploited for various purposes, such as food, feed and biotechnology. This would reduce the costs associated with disposal and make these activities more sustainable in the long term, thereby contributing to the preservation of ecosystems that are currently threatened by this invasive species.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"6 ","pages":"Article 100140"},"PeriodicalIF":6.6,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169642","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
New Approach Methodologies: Physiological responses of daphnids to pharmaceutical mixtures
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-12-28 DOI: 10.1016/j.hazl.2024.100139
Emma Rowan , Anne Leung , Katie O’Rourke , Xiaofei Yin , Lorraine Brennan , Konstantinos Grintzalis
{"title":"New Approach Methodologies: Physiological responses of daphnids to pharmaceutical mixtures","authors":"Emma Rowan ,&nbsp;Anne Leung ,&nbsp;Katie O’Rourke ,&nbsp;Xiaofei Yin ,&nbsp;Lorraine Brennan ,&nbsp;Konstantinos Grintzalis","doi":"10.1016/j.hazl.2024.100139","DOIUrl":"10.1016/j.hazl.2024.100139","url":null,"abstract":"<div><div>Conventional methods for water monitoring are insufficient to capture the impacts of pollution because of their sensitivity limits, while they also fail to provide mechanistic insight regarding the actions of pollutants. On the other hand, New Approach Methodologies are more and more introduced as supplementary tools that provide sensitive metrics for pollution assessment. In this context, freshwater sentinel species commonly known as water fleas were used to assess the impact of a pharmaceutical mixture. The pharmaceutical cocktail comprised of representatives of commonly encountered pharmaceuticals and specifically diclofenac, metformin, gabapentin, amoxicillin, trimethoprim, and erythromycin. Combining toxicity, phenotypic and molecular endpoints, results showed differences in mortality, feeding, key enzyme activities and metabolic perturbations, thus supporting a distinct pattern in physiological responses of daphnids that could be used to monitor and predict pollution early.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"6 ","pages":"Article 100139"},"PeriodicalIF":6.6,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169643","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
Per- and polyfluoroalkyl substances in rainfall runoff from an AFFF-impacted concrete pad: A field simulation study
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-11-28 DOI: 10.1016/j.hazl.2024.100137
Phong K. Thai , Jeffrey T. McDonough , Trent A. Key , Anita Thapalia , Scott Porman , Pritesh Prasad , Stephanie Fiorenza , Hirozumi Watanabe , Craig M. Barnes , Jochen F. Mueller
{"title":"Per- and polyfluoroalkyl substances in rainfall runoff from an AFFF-impacted concrete pad: A field simulation study","authors":"Phong K. Thai ,&nbsp;Jeffrey T. McDonough ,&nbsp;Trent A. Key ,&nbsp;Anita Thapalia ,&nbsp;Scott Porman ,&nbsp;Pritesh Prasad ,&nbsp;Stephanie Fiorenza ,&nbsp;Hirozumi Watanabe ,&nbsp;Craig M. Barnes ,&nbsp;Jochen F. Mueller","doi":"10.1016/j.hazl.2024.100137","DOIUrl":"10.1016/j.hazl.2024.100137","url":null,"abstract":"<div><div>Per- and polyfluoroalkyl substances (PFAS) retained within hardscape have been observed to leach over time in numerous laboratory studies. The aim of this study was to measure the release of key PFAS in rainfall runoff from a concrete pad impacted by historical AFFF use at the field-scale. Rainfall simulations were conducted on a 5 m<sup>2</sup> (1 ×5 m) plot for 3 consecutive days. Runoff water was collected every 2 minutes and analyzed for 5 PFAS commonly associated with AFFF. Surface samples of the concrete were collected from the plot after the rainfall runoff experiment. Perfluorooctane sulfonate (PFOS) exhibited the highest concentrations within the concrete (up to ∼4000 μg kg<sup>−1</sup>) and runoff water (up to 500 μg L<sup>−1</sup>), followed by 6:2 fluorotelomer sulfonate (6:2 FTS). PFAS concentrations in runoff water were higher in the first sample and then decreased in the consecutive samples of each rainfall simulation. It is estimated that the percentage of the total PFAS mass within the surface of the concrete contributing to runoff samples ranged from 0.006 % (PFOS) to 0.031 % (PFHxA) per rainfall event. This suggests low but sustained PFAS leaching from AFFF-impacted concrete into runoff water. Our findings confirmed that concrete impacted by legacy use of AFFF is a likely secondary source of PFAS in runoff water and highlight some similarities and differences between laboratory- and field-scale rainfall simulations.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"6 ","pages":"Article 100137"},"PeriodicalIF":6.6,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169645","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
Effect of triclosan on phosphate solubilising bacteria in mangrove ecosystem: In-vitro and In-vivo 三氯生对红树林生态系统中磷酸盐增溶菌的体外和体内影响
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-11-19 DOI: 10.1016/j.hazl.2024.100136
R.K. Dash , K. Kumar , S.P. Shukla , S. Kumar , S. Kumar H , S. Karmakar , T. Paul
{"title":"Effect of triclosan on phosphate solubilising bacteria in mangrove ecosystem: In-vitro and In-vivo","authors":"R.K. Dash ,&nbsp;K. Kumar ,&nbsp;S.P. Shukla ,&nbsp;S. Kumar ,&nbsp;S. Kumar H ,&nbsp;S. Karmakar ,&nbsp;T. Paul","doi":"10.1016/j.hazl.2024.100136","DOIUrl":"10.1016/j.hazl.2024.100136","url":null,"abstract":"<div><div>Triclosan (TCS) is a widely used biocide found in medicinal, household, and personal care products, frequently detected in various environmental matrices, posing significant threats to microbial communities and overall ecosystem functioning. This study evaluates the <em>in vivo</em> and <em>in vitro</em> effects of triclosan (TCS) on phosphate-solubilising bacteria (PSB) in mangrove ecosystems. Two experimental approaches were employed: a microcosm (<em>in vivo</em>) study and a laboratory (in vitro) analysis. Five isolated PSB strains—<em>Sphingomonas paucimobilis</em>, <em>Rhizobium radiobacter</em>, <em>Serratia ficaria</em>, <em>Klebsiella oxytoca</em>, and <em>Klebsiella pneumoniae</em>—were selected from the mangrove ecosystem for investigation. The minimum inhibitory concentration (MIC) results revealed that <em>Klebsiella pneumoniae</em> exhibited the highest resistance to TCS among the tested strains. <em>In vivo</em> experiments demonstrated a significant reduction in soil-available phosphorus and enzymatic activities, including acid and alkaline phosphatase, dehydrogenase, and fluorescein diacetate (FDA) activity, in TCS-exposed samples throughout the exposure period. <em>In vitro</em> results showed that phosphate solubilisation decreased significantly with increasing TCS concentrations in all strains except <em>Klebsiella pneumoniae</em>. Overall, TCS effectively inhibited the growth of PSB in mangrove ecosystems. This study is the first to report the impact of TCS on PSB in mangroves and provides valuable data for future research on microbial communities in such environments.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"6 ","pages":"Article 100136"},"PeriodicalIF":6.6,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142748804","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
Hitchhikers on traveling microplastics: Three necessary steps for bacteria becoming dangerous invaders 微塑料旅行中的 "搭便车者":细菌成为危险入侵者的三个必要步骤
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-11-01 DOI: 10.1016/j.hazl.2024.100133
Xiaohan Zhang , Ying Zhang , Yongzheng Ma , Zhiguang Niu
{"title":"Hitchhikers on traveling microplastics: Three necessary steps for bacteria becoming dangerous invaders","authors":"Xiaohan Zhang ,&nbsp;Ying Zhang ,&nbsp;Yongzheng Ma ,&nbsp;Zhiguang Niu","doi":"10.1016/j.hazl.2024.100133","DOIUrl":"10.1016/j.hazl.2024.100133","url":null,"abstract":"<div><div>Microplastics (MPs) have received great concern in recent years, and whether the bacteria carried by traveling MPs would cause ecological risks is a hot topic for debate. The colonized bacteria (i.e., hitchhikers) on traveling MPs which become invasive species in the new environment, need to be completed in three steps: arriving, falling, and growing. However, most previous studies only focused on the first step, which we think is insufficient to discuss species invasion. Thus, in this frontier review, we reviewed the progress of the current research on the uniqueness of bacterial communities on MPs, and we summarized that the uniqueness of the plastisphere was not as high as previously thought. Moreover, we explained why the three steps were necessary to complete the bacterial species invasion. Furthermore, we analyzed the technical difficulties hindering discussing MPs as invasive species carriers, as well as the perspectives in future research. Therefore, this frontier review presents new insights into the role of MPs as bacterial carriers, and suggests study directions for future research.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100133"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651888","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
µ-X-ray fluorescence (XRF) and fluorine K-edge µ-X-ray absorption near-edge structure (XANES) spectroscopy for detection of PFAS distribution in the impacted concrete 用 µ-X 射线荧光 (XRF) 和氟 K 边 µ-X 射线吸收近边结构 (XANES) 光谱检测受影响混凝土中 PFAS 的分布情况
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-11-01 DOI: 10.1016/j.hazl.2024.100134
Phong H.N. Vo , Christian Vogel , Hong T.M. Nguyen , Brett R. Hamilton , Phong K. Thai , Philipp Roesch , Franz-Georg Simon , Jochen F. Mueller
{"title":"µ-X-ray fluorescence (XRF) and fluorine K-edge µ-X-ray absorption near-edge structure (XANES) spectroscopy for detection of PFAS distribution in the impacted concrete","authors":"Phong H.N. Vo ,&nbsp;Christian Vogel ,&nbsp;Hong T.M. Nguyen ,&nbsp;Brett R. Hamilton ,&nbsp;Phong K. Thai ,&nbsp;Philipp Roesch ,&nbsp;Franz-Georg Simon ,&nbsp;Jochen F. Mueller","doi":"10.1016/j.hazl.2024.100134","DOIUrl":"10.1016/j.hazl.2024.100134","url":null,"abstract":"<div><div>An improved understanding of the distribution of per- and polyfluoroalkyl substances (PFAS) in PFAS-impacted concrete is important for risk management and decontamination of PFAS. This study incorporates µ-X-ray fluorescence (µ-XRF) and fluorine K-edge µ-X-ray absorption near-edge structure (µ-XANES) spectroscopy to gain non-destructive insights into PFAS distribution in the impacted concrete. The μ-XRF and μ-XANES spectroscopy provided additional details on the detection of PFAS, which were not detected by the desorption electrospray ionization (DESI) imaging method conducted previously. The shorter chain PFAS were found on the top part of the concrete core (0.5 cm), and longer chain PFAS were mostly at the bottom part of the concrete core (5 cm). The inorganic fluorine fraction was also detected, and it likely hampered the detection of organic fluorine such as PFAS in the concrete. Thus, this non-destructive technique is an complementary approach to detect PFAS in contaminated concrete.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100134"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651892","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
Per- and polyfluoroalkyl substances in feathers of waterbirds (Ardeidae) from Poyang Lake, China: Bioaccumulation, distribution, and environmental relevance 中国鄱阳湖水鸟羽毛中的全氟和多氟烷基物质:生物累积、分布和环境相关性
IF 6.6
Journal of hazardous materials letters Pub Date : 2024-11-01 DOI: 10.1016/j.hazl.2024.100135
Nannan Wan , Bo Zhou , Limin Mo , Qiyu Wang , Shuai Liu , Miao Zhang , Yu Liu , Xiaojun Luo , Bixian Mai
{"title":"Per- and polyfluoroalkyl substances in feathers of waterbirds (Ardeidae) from Poyang Lake, China: Bioaccumulation, distribution, and environmental relevance","authors":"Nannan Wan ,&nbsp;Bo Zhou ,&nbsp;Limin Mo ,&nbsp;Qiyu Wang ,&nbsp;Shuai Liu ,&nbsp;Miao Zhang ,&nbsp;Yu Liu ,&nbsp;Xiaojun Luo ,&nbsp;Bixian Mai","doi":"10.1016/j.hazl.2024.100135","DOIUrl":"10.1016/j.hazl.2024.100135","url":null,"abstract":"<div><div>Studies on the distribution characteristics and environmental relevance of per- and polyfluoroalkyl substances (PFAS) in waterbird feathers are scarce. In the present study, the concentrations of twenty-three PFAS in the remiges, coverts, body, down, and tail feathers of three common species of Ardeidae (little egret, grey heron, and Chinese pond-heron) in Poyang Lake were investigated. The total PFAS concentrations in the pinna and scapus were 38 – 42 ng/g dry weight (dw) and 21 – 38 ng/g dw, respectively; long-chain C<sub>9–14</sub> perfluorocarboxylic acids were abundant in all feathers. Most PFAS accumulated in the pinna; however, perfluorohexane sulfonic acid and perfluorooctane sulfonamide were predominant in the scapus. The PFAS concentrations were higher in the tail and flight feathers than in the cover and body feathers. Furthermore, the concentrations of PFAS in waterbird feathers were comparable with those in fish and higher than those in benthic invertebrates, all of which originated from Poyang Lake. The PFAS profiles in feathers were significantly and positively correlated with those in fish (r &gt; 0.71) and benthos (r &gt; 0.43). These results suggest that waterbird feather is a suitable biomonitor of PFAS contamination in regional freshwater ecosystems.</div></div>","PeriodicalId":93463,"journal":{"name":"Journal of hazardous materials letters","volume":"5 ","pages":"Article 100135"},"PeriodicalIF":6.6,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142651891","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
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
Aqsa Pervaiz , Sohail Anjum Shahzad , Mohammed A. Assiri , Tayyeba Javid , Hasher Irshad , Katrine Qvortrup
{"title":"Cyanide and chloroform detection through J-aggregates based aggregation induced emission probe with real sample applications","authors":"Aqsa Pervaiz ,&nbsp;Sohail Anjum Shahzad ,&nbsp;Mohammed A. Assiri ,&nbsp;Tayyeba Javid ,&nbsp;Hasher Irshad ,&nbsp;Katrine Qvortrup","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":"5 ","pages":"Article 100132"},"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
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