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Precise manipulation of pore sizes in Zr(IV)-Based metal-organic frameworks for enhanced bisphenol a removal from water 精确控制基于 Zr(IV)-Based Metal-Organic Frameworks 的孔隙大小,提高从水中去除双酚 A 的能力。
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143816
Guangli Yu , Fei Ni , Wenyue Niu , Yu Chen , Feng Zhang , Guo-Dong Li , Xingfei Song , Yajing Zhang , Kangjun Wang
Metal-organic frameworks (MOFs) recently gained immense popularity for the adsorption of organic impurities. In this work, the adsorptive separation of bisphenol A (BPA) from aqueous mixtures was explored utilizing three types of zirconium-based MOFs, namely MOF-808, UiO-66, and hierarchically porous UiO-66 (HP-UiO-66). The HP-UiO-66, which was etched by sodium acetate as the terminal ligand, generated large mesopores ranging from 40 to 300 Å due to the departure of partial linkers and metallic clusters. The adsorption ability for BPA increased significantly with the introduction of numerous mesopores onto the HP-UiO-66 framework, even though the surface area of HP-UiO-66 was lower compared to that of the pristine UiO-66 and MOF-808. The study revealed that the maximum adsorption capacities (q) for BPA by HP-UiO-66 reached up to 295.04 mg g−1, which was about 88.5% and 17.4% higher in comparison to UiO-66 and MOF-808, respectively. Furthermore, the q value of HP-UiO-66 was also better than many other previously reported MOF adsorbents. The analysis of possible adsorption mechanisms indicated that physical pore-filling was anticipated as the principal mechanism, attributed to the larger window size and high mesopore surface area of HP-UiO-66. Furthermore, X-ray photoelectron and Fourier transform infrared spectroscopic measurements inferred that the synergetic effects of H-bonding and π-π interactions played crucial roles in BPA capture as well. Overall, this study revealed a structure–property relationship in the Zr-MOFs-based adsorbents and opened up a new avenue to exploit unique MOF platforms for the efficient removal of emerging contaminations in the future.
最近,金属有机框架(MOFs)在吸附有机杂质方面大受欢迎。本研究利用三种锆基 MOF,即 MOF-808、UiO-66 和分层多孔 UiO-66(HP-UiO-66),探索了从水性混合物中吸附分离双酚 A(BPA)的方法。以醋酸钠为末端配体蚀刻的 HP-UiO-66 由于部分连接体和金属团簇的离开,产生了 40 至 300 Å 的大介孔。尽管 HP-UiO-66 的比表面积低于原始 UiO-66 和 MOF-808,但随着 HP-UiO-66 框架上引入大量介孔,其对双酚 A 的吸附能力显著提高。研究表明,HP-UiO-66 对双酚 A 的最大吸附容量(q)达到 295.04 mg g-1,比 UiO-66 和 MOF-808 分别高出约 88.5% 和 17.4%。此外,HP-UiO-66 的 q 值也优于之前报道的许多其他 MOF 吸附剂。对可能的吸附机理的分析表明,由于 HP-UiO-66 具有较大的窗口尺寸和较高的中孔表面积,因此物理孔填充被认为是主要的吸附机理。此外,X 射线光电子学和傅立叶变换红外光谱测量推断,H 键和π-π 相互作用的协同效应在捕获双酚 A 的过程中也发挥了关键作用。总之,这项研究揭示了基于 Zr-MOFs 的吸附剂的结构-性能关系,为今后利用独特的 MOF 平台高效去除新兴污染物开辟了一条新途径。
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引用次数: 0
Effect of biodegradable microplastics and Cd co-pollution on Cd bioavailability and plastisphere in soil-plant system 可生物降解微塑料与Cd共污染对土壤-植物系统Cd生物有效性和塑性圈的影响
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143822
Xuechun Shao , Weiyu Liang , Kailin Gong , Zhihua Qiao , Wei Zhang , Genxiang Shen , Cheng Peng
Biodegradable plastics (BPs) are regarded as ecomaterials and are emerging as a substitute for traditional non-degradable plastics. However, the information on the interaction between biodegradable microplastics (BMPs) and cadmium (Cd) in agricultural soil is still limited. Here, lettuce plants were cultured in BMPs (polylactic acid (PLA) MPs and poly(butylene-adipate-co-terephthalate) (PBAT) MPs) and Cd co-polluted soil for 35 days. The results show that diffusive gradient in thin films technique (DGT) but not diethylenetriaminepentaacetic acid (DTPA) extraction method greatly improved the prediction reliability of Cd bioavailability in non-rhizosphere soil treated with BMPs (R2 = 0.902). BMPs increased the Cd bioavailability in non-rhizosphere soil indirectly by decreasing soil pH, cation exchange capacity (CEC), and dissolved organic carbon (DOC), rather than by directly adsorbing Cd on their surface. PLA MPs incubated in rhizosphere soil showed more considerable degradation with extremely obvious cavities and the fracture of ester functional groups on their surface than PBAT MPs. BMPs could provide ecological niches to colonize and induce microorganisms associated with BMPs’ degradation to occupy a more dominant position. In addition, Cd only affected the composition and function of microbial communities in soil but not on BMPs. However, co-exposure to BMPs and Cd significantly reduced the degrees of co-occurrence network of fungal communities on PLA MPs and PBAT MPs by 37.7% and 26.7%, respectively, compared to single exposure to BMPs.
生物降解塑料(bp)被认为是一种环保材料,正在成为传统不可降解塑料的替代品。然而,生物可降解微塑料(BMPs)与农业土壤中镉(Cd)相互作用的信息仍然有限。在这里,生菜在BMPs(聚乳酸MPs和聚己二酸丁烯-对苯二甲酸酯MPs) (PBAT)和Cd共污染的土壤中培养35天。结果表明:薄膜扩散梯度提取法(DGT)显著提高了BMPs处理下非根际土壤Cd生物有效性的预测可靠性(R2 = 0.902),而二乙烯三胺五乙酸(DTPA)提取法的预测可靠性较低;bmp通过降低土壤pH值、阳离子交换容量(CEC)和溶解有机碳(DOC)间接提高了非根际土壤Cd的生物有效性,而不是通过直接在土壤表面吸附Cd。在根际土壤中培养的PLA MPs比PBAT MPs表现出更明显的降解,其表面出现极明显的空洞和酯官能团断裂。bmp可以提供生态位定植,诱导与bmp降解相关的微生物占据优势地位。此外,Cd只影响土壤微生物群落的组成和功能,而对bmp没有影响。然而,与单独暴露于bmp相比,BMPs和Cd共同暴露显著降低了PLA MPs和PBAT MPs上真菌群落共出现网络的程度,分别降低了37.7%和26.7%。
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引用次数: 0
Nanoplastics as competitors of natural colloids in the environment: The case of gadolinium complexes 作为环境中天然胶体竞争者的纳米塑料:钆络合物的案例。
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143810
Celia Trujillo , Aubin Thibault de Chanvalon , Francisco Laborda , Ryszard Lobinski , Javier Jimenez-Lamana
This study investigates whether nanoplastics are significant contributor of rare earth elements (Gd) transportation under environmental conditions. Important effects of nanoplastic concentration, Gd concentration, complexation with organic ligands, pH, ionic strength and occurrence of natural colloids competitor were studied thanks to an experimental design combining incubation follow by ultrafiltration and ICPMS analyses. In particular, we observed that even in sea water, about half of the gadolinium can be adsorbed on nanoplastics. Surprisingly, the adsorption is more pronounced at low concentration of nanoplastic (10 μg L−1) probably because it prevents homoaggregation of nanoparticles. These are the first experimental clues that adsorption on nanoplastics is governed by fundamentally different processes than adsorption on microplastics.
本研究探讨了纳米塑料是否是环境条件下稀土元素(Gd)迁移的重要因素。通过结合培养、超滤和 ICPMS 分析的实验设计,研究了纳米塑料浓度、钆浓度、与有机配体的络合度、pH 值、离子强度和天然胶体竞争者的出现等因素的重要影响。我们特别观察到,即使在海水中,纳米塑料上也能吸附约一半的钆。令人惊讶的是,在纳米塑料浓度较低(10 μg/L)的情况下,吸附作用更为明显,这可能是因为纳米塑料能阻止纳米粒子的同聚。这些是纳米塑料吸附过程与微塑料吸附过程有本质区别的第一批实验线索。
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引用次数: 0
Kinetic modeling of sulfonamide degradation by UV/H2O2: Deduction of ROH,UV modeling and application UV/H2O2降解磺胺的动力学建模:ROH的推导、UV建模及应用
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143836
Xinxin Qin , Xinyue Liu , Yi He , Yichun Zhu , Zuwen Liu , Wentao Li , Mengkai Li , Zhimin Qiang , Junfeng Lian
Eight sulfonamide (SA) antibiotics were effectively degraded using a UV/H2O2 process in a quasi-collimated beam apparatus, utilizing optimized fluence quantification. Fluence-based rate constants (kk'SA) for the UV/H2O2 process were established. A curve-fitting method, derived from ROH,UV modeling, was developed for the UV/H2O2 process to quantitatively assess the impact of critical factors, including water quality and direct UV photolysis. It was observed that k'SA values approached a limiting value as initial H2O2 concentration increased. The specific second-order rate constants for OH reactions with neutral and anionic SA species were determined to be within (2.2–5.7) × 10⁹ M⁻1 s⁻1, showing minimal variation among species. For the eight SAs studied, k'SA values were calculated from 3.9 × 10⁻⁴ to 6.0 × 10⁻2 cm2 mJ⁻1 across a typical pH range of 6.5–9.5. Direct UV photolysis was notably significant in SA degradation, particularly for sulfisoxazole, contributing at least 35%. An energy cost equation was formulated to evaluate the cost-effectiveness of SA degradation by UV/H2O2 and optimize operational parameters. This model, validated in real water scenarios, shows promise for predicting SA removal in UV/H2O2 processes. The developed curve-fitting method, pH-independent and accounting for both direct photolysis and OH radical reactions, is apt for modeling mixed-contaminant degradation in UV/H2O2 processes, simplifying calculations in ROH,UV modeling.
在准准直光束装置中,利用优化的通量定量,采用紫外/H2O2工艺对8种磺胺类抗生素进行了有效降解。建立了UV/H2O2工艺的基于通量的速率常数(kk’sa)。基于UV模型,建立了UV/H2O2工艺的曲线拟合方法,以定量评估水质和直接UV光解等关键因素的影响。随着初始H2O2浓度的增加,k’sa值接近一个极限值。•OH与中性和阴离子SA的反应的特定二级速率常数被确定在(2.2-5.7)× 10 (9) M毒血症(毒血症)s毒血症(9)(9)之内,显示出物种之间的最小差异。对于研究的8个sa, k'SA值在典型的pH值6.5-9.5范围内从3.9 × 10⁻到6.0 × 10⁻cm2 mJ - 1。直接紫外光解对SA的降解作用显著,特别是对磺胺恶唑的降解作用至少为35%。建立了能量成本方程,评估了UV/H2O2降解SA的成本效益,并优化了操作参数。该模型在实际水环境中得到验证,有望预测UV/H2O2过程中SA的去除。所开发的曲线拟合方法与ph无关,并且考虑了直接光解反应和OH自由基反应,适合于模拟UV/H2O2过程中的混合污染物降解,简化了ROH,UV模型的计算。
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引用次数: 0
Characterization of potentially toxic elements in leachates from active and closed landfills in Nigeria and their effects on groundwater systems using spatial, indexical, chemometric and health risk techniques 利用空间、指数、化学计量和健康风险技术确定尼日利亚在用和已关闭垃圾填埋场渗滤液中潜在有毒元素的特征及其对地下水系统的影响。
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143678
Toheeb Lekan Jolaosho
This study examines potentially toxic elements (PTEs) in leachates from three landfills (active and closed sites) to quantify and compare their degree of toxicity and percolation effects on aquifer groundwater based on distance zonation. The finding revealed that the active landfill leachates had higher concentrations (P < 0.05) of PTEs, with EC, TDS, Cd, Cu, Fe, Zn, Pb, and Mn being above the standard limits for wastewater. The leachate pollution index confirmed high toxicity of the active sites. The geospatial maps suggest that the aquifer was influenced by leachate migration effects, with the groundwater situated within 100 m of the landfills exceeding the regulatory limits. Based on the Ficklin-Caboi assessment, the groundwaters were categorized into “low metals—near neutral” and “high metals—near neutral." The contamination degree, heavy metal contamination index, groundwater quality index, and water pollution index denote that over 40% of the groundwaters are “highly to extremely” polluted and are unfit for drinking, while over 50% are “excellently pure." The geospatial maps revealed that all the groundwaters within 100 m of the landfills are polluted, especially those near the active landfills. The prevailing factors impairing the quality of groundwater were Pb > Cd > TDS > Fe > EC > Cr > pH > Mn > Se > Co. The correlation coefficients, principal components, and cluster analyses confirmed the heterogeneous nature of the landfills and that the solid wastes were mainly from industrial, commercial, and household sources. Aside from the migration effect of leachates, other anthropogenic and geological factors are influencing the aquifer systems. The health risk assessment showed that the groundwaters within 100–500 m of the landfills are capable of causing noncarcinogenic and cancer health risks in exposed populations, with children and those within the distance of 100 m being the most vulnerable groups.
本研究检测了三个垃圾填埋场(活跃和关闭的垃圾填埋场)沥滤液中的潜在有毒元素(PTEs),以量化和比较其毒性程度以及根据距离分区对含水层地下水的渗滤影响。研究结果表明,活动垃圾填埋场渗滤液的 PTEs 浓度较高(P < 0.05),EC、TDS、Cd、Cu、Fe、Zn、Pb 和 Mn 均高于废水标准限值。沥滤液污染指数证实了活性点的高毒性。地理空间地图显示,含水层受到了沥滤液迁移效应的影响,垃圾填埋场 100 米范围内的地下水超过了监管限值。根据 Ficklin-Caboi 评估,地下水被分为 "低金属-接近中性 "和 "高金属-接近中性 "两类。污染程度、重金属污染指数、地下水质量指数和水污染指数表明,40% 以上的地下水受到 "高度至极度 "污染,不适合饮用,而 50%以上的地下水为 "极度纯净"。地理空间地图显示,垃圾填埋场 100 米范围内的所有地下水都受到了污染,尤其是活动垃圾填埋场附近的地下水。影响地下水质量的主要因素是铅 > 镉 > TDS > 铁 > EC > 铬 > pH > 锰 > 硒 > 钴。相关系数、主成分和聚类分析证实了垃圾填埋场的异质性,以及固体废物主要来自工业、商业和家庭。除了沥滤液的迁移效应,其他人为和地质因素也对含水层系统产生了影响。健康风险评估结果表明,垃圾填埋场周围 100 至 500 米范围内的地下水会对暴露人群造成非致癌和致癌健康风险,其中儿童和 100 米范围内的人群最易受到影响。
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引用次数: 0
Nationwide human biomonitoring strategy in Korea: Prioritization of novel contaminants using GC/TOF-MS with suspect and non-target screening 韩国全国人类生物监测策略:使用GC/TOF-MS对可疑和非目标筛选的新型污染物进行优先排序
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143814
Sori Mok , Sunggyu Lee , Nahyun Lee , Sungkyoon Kim , Kyungho Choi , Jeongim Park , Younglim Kho , Hyo-Bang Moon
According to global regulations on hazardous chemicals, numerous alternatives have been manufactured and used in various consumer products. Suspect and non-target analyses are advanced analytical techniques used for identifying novel contaminants. In the present study, suspect and non-target analytical approaches using a gas chromatography coupled to a time-of-flight mass spectrometer were applied to identify novel contaminants in 40 pooled serum samples from a sub-population (n = 400) of the 2015–2017 national biomonitoring program. Suspect screening analysis was performed using an in-house library based on retention times and quantifier and qualifier ions for 222 contaminants, including persistent organic pollutants and emerging contaminants. Non-target analysis was performed by matching deconvoluted mass spectra to the spectral library from the National Institute of Standards and Technology. The suspect screening analysis identified organochlorinated pesticides, organophosphate esters, phthalate esters, and alternative plasticizers. Among the 68 compounds identified in the non-target analysis, siloxanes, novel organophosphate esters, and UV ink photoinitiators were considered candidates for future inclusion in the biomonitoring program based upon significant human exposure. Our findings demonstrate the feasibility of suspect and non-target analysis to identify novel contaminants to prioritize for inclusion within a national human biomonitoring program.
根据关于危险化学品的全球法规,已经制造了许多替代品并用于各种消费产品。怀疑和非目标分析是用于识别新污染物的先进分析技术。在本研究中,使用气相色谱耦合飞行时间质谱仪的可疑和非目标分析方法,对来自2015-2017年国家生物监测计划亚群(n = 400)的40个合并血清样本(n = 400)中的新型污染物进行了鉴定。利用内部文库对222种污染物进行可疑筛选分析,包括持久性有机污染物和新出现的污染物。通过将反卷积质谱与美国国家标准与技术研究所的光谱库相匹配,进行非目标分析。可疑筛选分析确定了有机氯农药、有机磷酯、邻苯二甲酸酯和替代增塑剂。在非靶标分析中鉴定的68种化合物中,硅氧烷、新型有机磷酸酯和UV油墨光引发剂被认为是未来生物监测计划中基于显著人体暴露的候选物质。我们的研究结果证明了可疑和非目标分析的可行性,以确定新的污染物,优先纳入国家人类生物监测计划。
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引用次数: 0
Poly(vinyl alcohol)/tannic acid nanofibrous membrane containing curcumin as an intelligent indicator of food spoilage 含有姜黄素的聚乙烯醇/单宁酸纳米纤维膜作为食品变质的智能指示器
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143829
Jun Tae Kim , Kiramage Chathuranga , Jong Soo Lee , Min Hee Kim , Won Ho Park
In recent years, active packaging technology for extending food shelf life and intelligent packaging technology for monitoring food freshness have become essential for ensuring food safety. Among sensing technologies, pH-sensitive sensors have notable advantages, including simplicity, compactness, and affordability, making them ideal for monitoring food freshness. This study proposes an intelligent food indicator based on a composite nanofiber membrane fabricated by electrospinning. The membrane, composed of poly(vinyl alcohol) (PVA), tannic acid (TA), and the natural pH-sensitive dye curcumin (CUR), was heat-treated to enhance its moisture stability for food packaging. Furthermore, the incorporation of TA and CUR into PVA provides additional benefits such as UV-blocking, antioxidant, and antimicrobial properties, effectively delaying food spoilage. The CUR-incorporated nanofibrous membrane exhibited faster detection of shrimp spoilage via colorimetric changes under increasingly alkaline conditions than film samples. Moreover, compared to film-based samples, the composite nanofiber membrane exhibited faster color change responsiveness owing to its porous and high surface area structure, thus serving as an efficient and intelligent indicator.
近年来,延长食品保质期的活性包装技术和监测食品新鲜度的智能包装技术已成为确保食品安全必不可少的技术。在传感技术中,ph敏感传感器具有显着的优势,包括简单,紧凑和负担得起,使其成为监测食品新鲜度的理想选择。本研究提出了一种基于静电纺丝法制备复合纳米纤维膜的智能食品指示剂。该膜由聚乙烯醇(PVA)、单宁酸(TA)和天然ph敏感染料姜黄素(CUR)组成,对其进行热处理,以提高其食品包装的水分稳定性。此外,将TA和CUR掺入PVA中提供了额外的好处,如阻挡紫外线、抗氧化和抗菌特性,有效地延缓了食物的变质。在碱性增加的条件下,与薄膜样品相比,掺入cu的纳米纤维膜通过比色变化对虾类腐败的检测速度更快。此外,与膜基样品相比,复合纳米纤维膜由于其多孔和高比表面积结构,具有更快的颜色变化响应性,可以作为一种高效智能的指示物。
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引用次数: 0
Integrating morphology, physiology, and computer simulation to reveal the toxicity mechanism of eco-friendly rosin-based pesticides 将形态学、生理学和计算机模拟相结合,揭示生态松香农药的毒性机制
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-12-01 DOI: 10.1016/j.chemosphere.2024.143855
Renle Xu , Yuhang Lou , Yanqing Gao , Shibin Shang , Zhanqian Song , Kerang Huang , Luqi Li , Lei Chen , Jian Li
To mitigate the impact of traditional chemical pesticides on environment, and achieve sustainable crop protection, 24 eco-friendly rosin-based sulfonamide derivatives were synthesized and developed. The in vitro activity assessment showed that compound 4X (Co. 4X) exhibited excellent fungicidal activity against V. mali (EC50 = 1.106 μg/mL), marginally surpassing the positive control carbendazim (EC50 = 1.353 μg/mL). In vivo investigations suggested that Co. 4X exhibited moderate efficacy in mitigating V. mali infection in both apple trees and apples. Physiological assessments revealed that Co. 4X induced severe ultrastructural damage to the mycelium, heightened cell membrane permeability, and inhibited SDH protein activity. Subsequent biosafety evaluations affirmed the environment-friendly of Co. 4X on Zebrafish (LC50(96h) = 25.176 μg/mL). Toxicological research revealed that Co. 4X caused damage to the cells of Zebrafish gills, liver, and intestines, resulting in impaired respiratory, detoxification, digestion, and absorption functions of Zebrafish. In summary, the findings of this study contribute to a deeper understanding of the toxicity mechanisms of novel pesticides, decreasing environmental risks caused by traditional chemical pesticides, and improving the effective management of novel pesticide applications.
为减轻传统化学农药对环境的影响,实现作物的可持续保护,合成并开发了24种松香基磺胺衍生物。体外活性评价表明,化合物4X (Co. 4X)对马里弧菌具有良好的杀真菌活性(EC50 = 1.106 μg/mL),略高于阳性对照多菌灵(EC50 = 1.353 μg/mL)。体内研究表明,Co. 4X对苹果树和苹果的马利弧菌感染均表现出中等效果。生理评估显示,Co. 4X对菌丝造成严重的超微结构损伤,提高细胞膜通透性,抑制SDH蛋白活性。随后的生物安全性评价证实了Co. 4X对斑马鱼的环境友好性(LC50(96h) = 25.176 μg/mL)。毒理学研究表明,Co. 4X对斑马鱼的鳃、肝脏和肠道细胞造成损伤,导致斑马鱼的呼吸、排毒、消化和吸收功能受损。综上所述,本研究结果有助于深入了解新型农药的毒性机制,降低传统化学农药带来的环境风险,提高对新型农药使用的有效管理。
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引用次数: 0
The T cell response to SARS-CoV-2 mRNA vaccine in adults with high exposure to perfluoroalkyl substances from Ronneby, Sweden 瑞典罗讷比市大量接触全氟烷基物质的成年人对 SARS-CoV-2 mRNA 疫苗的 T 细胞反应。
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-27 DOI: 10.1016/j.chemosphere.2024.143770
Axel G. Andersson , Anna Lundgren , Yiyi Xu , Christel Nielsen , Christian H. Lindh , Daniela Pineda , Josefine Vallin , Clara Johnsson , Tony Fletcher , Mats Bemark , Kristina Jakobsson , Ying Li

Background

Perfluoroalkyl substances (PFAS) have been associated with impaired antibody levels after childhood vaccinations and immunosuppressive effects in animals. However, the in vivo effects of PFAS on antigen specific human T cell responses have not been investigated in adults. In Ronneby, Sweden, the drinking water of one of the water works was previously highly contaminated with primarily perfluorohexane sulfonic acid (PFHxS) and perfluorooctane sulfonic acid (PFOS). The COVID-19 vaccination scheme presented the possibility to assess antigen specific T cell function after vaccination in adults with high PFAS serum levels.

Objectives

To investigate the relationship between PFAS exposure and T cell responses after COVID-19 vaccination in a population with varied PFAS exposure.

Methods

116 COVID-19 naïve individuals from Ronneby and a background exposed group were included from the PFAS Immune Response After COVID-19 Vaccination cohort (PIRVACoV). All participants received two doses of Spikevax® (Moderna) vaccine. Blood T cells were stimulated with overlapping peptides based on the SARS-CoV-2 spike protein and their production of the cytokines IFN-γ, IL-2, and TNF were measured. The general immune response was assessed by measurement of phytohemagglutinin stimulated cytokines and total immunoglobulin serum levels. Adjusted mixed linear regressions were fitted against measured, address-based and prenatal PFAS exposure indices.

Results

PFAS median serum levels differed greatly between participants ever having had contaminated drinking water at home (PFOS 47 ng/mL, 5th to 95th percentile 6–221 ng/mL) and the background group (PFOS 4 ng/mL, 2–9 ng/mL). PFAS exposure was not associated with SARS-CoV-2 specific T cell cytokine responses (e.g., measured PFOS to IFN-γ: +3% per interquartile range PFOS, 95% confidence interval: 10, 17), nor general immune response.

Conclusions

This study indicates, in concordance with the PIRVACoV antibody study and other antibody PFAS/COVID-19 studies, that PFAS exposed, healthy adults mount adequate immune responses to mRNA COVID-19 vaccination. EudraCT-number: 2021-000842-16.
背景:全氟烷基物质(PFAS)与儿童接种疫苗后抗体水平受损以及动物免疫抑制效应有关。然而,PFAS 对抗原特异性人类 T 细胞反应的体内影响尚未在成人中进行调查。在瑞典罗讷比,一个自来水厂的饮用水以前主要受到全氟己烷磺酸 (PFHxS) 和全氟辛烷磺酸 (PFOS) 的高度污染。COVID-19 疫苗接种计划为评估血清中全氟辛烷磺酸含量较高的成年人接种疫苗后的抗原特异性 T 细胞功能提供了可能性:方法:从 COVID-19 疫苗接种后 PFAS 免疫反应队列 (PIRVACoV) 中纳入 116 名来自 Ronneby 的 COVID-19 初学者和一个背景暴露组。所有参与者都接种了两剂 Spikevax® (Moderna) 疫苗。用基于 SARS-CoV-2 穗状病毒蛋白的重叠肽刺激血液中的 T 细胞,并测量它们产生的细胞因子 IFN-γ、IL-2 和 TNF。通过测定植物血凝素刺激的细胞因子和血清总免疫球蛋白水平来评估总体免疫反应。根据测量结果、地址和产前 PFAS 暴露指数进行了调整混合线性回归拟合:曾在家中使用过受污染饮用水的参与者(PFOS 47 纳克/毫升,第 5 至第 95 百分位数为 6-221 纳克/毫升)与背景组(PFOS 4 纳克/毫升,第 5 至第 95 百分位数为 2-9 纳克/毫升)之间的 PFAS 中位数血清水平差异很大。接触全氟辛烷磺酸与 SARS-CoV-2 特异性 T 细胞细胞因子反应无关(例如,测得的全氟辛烷磺酸与 IFN-γ 的关系为 +3%/四分位数之间 +3%/四分位数之间 +3%/四分位数之间 +3%):+3%,95% 置信区间:-10, 17),也与一般免疫反应无关:本研究表明,与 PIRVACoV 抗体研究和其他抗体 PFAS/COVID-19 研究一致,暴露于 PFAS 的健康成人对 mRNA COVID-19 疫苗接种可产生充分的免疫反应。EudraCT-number: 2021-000842-16.
{"title":"The T cell response to SARS-CoV-2 mRNA vaccine in adults with high exposure to perfluoroalkyl substances from Ronneby, Sweden","authors":"Axel G. Andersson ,&nbsp;Anna Lundgren ,&nbsp;Yiyi Xu ,&nbsp;Christel Nielsen ,&nbsp;Christian H. Lindh ,&nbsp;Daniela Pineda ,&nbsp;Josefine Vallin ,&nbsp;Clara Johnsson ,&nbsp;Tony Fletcher ,&nbsp;Mats Bemark ,&nbsp;Kristina Jakobsson ,&nbsp;Ying Li","doi":"10.1016/j.chemosphere.2024.143770","DOIUrl":"10.1016/j.chemosphere.2024.143770","url":null,"abstract":"<div><h3>Background</h3><div>Perfluoroalkyl substances (PFAS) have been associated with impaired antibody levels after childhood vaccinations and immunosuppressive effects in animals. However, the <em>in vivo</em> effects of PFAS on antigen specific human T cell responses have not been investigated in adults. In Ronneby, Sweden, the drinking water of one of the water works was previously highly contaminated with primarily perfluorohexane sulfonic acid (PFHxS) and perfluorooctane sulfonic acid (PFOS). The COVID-19 vaccination scheme presented the possibility to assess antigen specific T cell function after vaccination in adults with high PFAS serum levels.</div></div><div><h3>Objectives</h3><div>To investigate the relationship between PFAS exposure and T cell responses after COVID-19 vaccination in a population with varied PFAS exposure.</div></div><div><h3>Methods</h3><div>116 COVID-19 naïve individuals from Ronneby and a background exposed group were included from the PFAS Immune Response After COVID-19 Vaccination cohort (PIRVACoV). All participants received two doses of Spikevax® (Moderna) vaccine. Blood T cells were stimulated with overlapping peptides based on the SARS-CoV-2 spike protein and their production of the cytokines IFN-γ, IL-2, and TNF were measured. The general immune response was assessed by measurement of phytohemagglutinin stimulated cytokines and total immunoglobulin serum levels. Adjusted mixed linear regressions were fitted against measured, address-based and prenatal PFAS exposure indices.</div></div><div><h3>Results</h3><div>PFAS median serum levels differed greatly between participants ever having had contaminated drinking water at home (PFOS 47 ng/mL, 5th to 95th percentile 6–221 ng/mL) and the background group (PFOS 4 ng/mL, 2–9 ng/mL). PFAS exposure was not associated with SARS-CoV-2 specific T cell cytokine responses (e.g., measured PFOS to IFN-γ: +3% per interquartile range PFOS, 95% confidence interval: 10, 17), nor general immune response.</div></div><div><h3>Conclusions</h3><div>This study indicates, in concordance with the PIRVACoV antibody study and other antibody PFAS/COVID-19 studies, that PFAS exposed, healthy adults mount adequate immune responses to mRNA COVID-19 vaccination. EudraCT-number: 2021-000842-16.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"369 ","pages":"Article 143770"},"PeriodicalIF":8.1,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142683451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Performance improvement of triple-doped nanocomposite membrane towards hairwork dyeing effluent reclamation approaching zero liquid discharge 三重掺杂纳米复合膜对接近零液体排放的染发废水回收的性能改进。
IF 8.1 2区 环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Pub Date : 2024-11-01 DOI: 10.1016/j.chemosphere.2024.143725
Yu Liu, Yuefei Song, Chunchun Meng, Zuqiong Jiang, Junhao Zhao, Yanan Wang, Kai Jiang
It is highly anticipated that efforts will be made to raise the level of industrial effluent reclamation on the background of continuously minimizing waste stream based on preconcentration tool. For this purpose, a triple-doped nanocomposite (TFN-tri) membrane through partially alternative doping spiro-structured 2,2′-dimethyl-1,1′-biphenyl-4,4′-diamine dihydrochloride and flexible 4,4′-bipiperidyl dihydrochloride and continuous incorporating of molybdenum disulfide quantum dots was successfully fabricated. With the assistance of self-synthesized biodegradable flocculant pretreatment, raw hairwork dyeing effluent (HDE) was stably recycled up to 95.1% on the premise of meeting the requirements of the relevant national standard. As a deep processing unit, TFN-tri membrane displayed accurate salt rejection of nearly 66% as expected. More impressively, it also exhibited permeability basically increased by 2.5 folds, while fouling layer thickness, running time and specific energy consumption decreased by 5 μm, 54.7% and 72.5%, respectively, than its counterpart in long-term reuse testing. These changes may mainly be due to the finely expand sub-nanopores coupled with an enhanced electrostatic exclusion and the improved fouling resistance brought about by other critical skin features in terms of smoothness and hydrophilicity optimization. In brief, this study has taken a vigorous and reliable step towards heavily polluted HDE reclamation approaching zero liquid discharge.
基于预浓缩工具,在不断减少废物流的背景下,提高工业废水回收水平的努力值得期待。为此,通过部分替代掺杂螺状结构的 2,2'-二甲基-1,1'-联苯-4,4'-二胺二盐酸盐和柔性 4,4'-联哌啶基二盐酸盐,并连续加入二硫化钼量子点,成功制备了三重掺杂纳米复合膜(TFN-tri)。在自合成生物可降解絮凝剂预处理的辅助下,原染发废水(HDE)在满足相关国家标准要求的前提下,稳定回收率达95.1%。作为一种深度处理单元,TFN-tri 膜的准确盐排斥率达到了预期的近 66%。更令人印象深刻的是,它的渗透率基本上提高了 2.5 倍,而污垢层厚度、运行时间和比能耗则分别比长期重复使用测试中的同类产品减少了 5 μm、54.7% 和 72.5%。这些变化的主要原因可能是亚纳米孔的细微扩展,加上静电排斥的增强,以及在光滑度和亲水性优化方面的其他关键表层特征所带来的抗污垢能力的提高。简而言之,这项研究为接近液体零排放的重污染高密度聚乙烯再生迈出了坚实可靠的一步。
{"title":"Performance improvement of triple-doped nanocomposite membrane towards hairwork dyeing effluent reclamation approaching zero liquid discharge","authors":"Yu Liu,&nbsp;Yuefei Song,&nbsp;Chunchun Meng,&nbsp;Zuqiong Jiang,&nbsp;Junhao Zhao,&nbsp;Yanan Wang,&nbsp;Kai Jiang","doi":"10.1016/j.chemosphere.2024.143725","DOIUrl":"10.1016/j.chemosphere.2024.143725","url":null,"abstract":"<div><div>It is highly anticipated that efforts will be made to raise the level of industrial effluent reclamation on the background of continuously minimizing waste stream based on preconcentration tool. For this purpose, a triple-doped nanocomposite (TFN-tri) membrane through partially alternative doping spiro-structured 2,2′-dimethyl-1,1′-biphenyl-4,4′-diamine dihydrochloride and flexible 4,4′-bipiperidyl dihydrochloride and continuous incorporating of molybdenum disulfide quantum dots was successfully fabricated. With the assistance of self-synthesized biodegradable flocculant pretreatment, raw hairwork dyeing effluent (HDE) was stably recycled up to 95.1% on the premise of meeting the requirements of the relevant national standard. As a deep processing unit, TFN-tri membrane displayed accurate salt rejection of nearly 66% as expected. More impressively, it also exhibited permeability basically increased by 2.5 folds, while fouling layer thickness, running time and specific energy consumption decreased by 5 μm, 54.7% and 72.5%, respectively, than its counterpart in long-term reuse testing. These changes may mainly be due to the finely expand sub-nanopores coupled with an enhanced electrostatic exclusion and the improved fouling resistance brought about by other critical skin features in terms of smoothness and hydrophilicity optimization. In brief, this study has taken a vigorous and reliable step towards heavily polluted HDE reclamation approaching zero liquid discharge.</div></div>","PeriodicalId":276,"journal":{"name":"Chemosphere","volume":"368 ","pages":"Article 143725"},"PeriodicalIF":8.1,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142634469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","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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Chemosphere
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