ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Xin Zheng,Yajing Ji,Shengjie Li,Siyao Liu
The sensing of phthalate esters (PAEs) is vital for people’s health and environmental protection. This study aimed to develop a highly sensitive and selective photoelectrochemical (PEC) biosensor for PAEs analysis in complex samples. The biosensor is based on a CdS nanoparticle/TiO2 nanotube (CdS NP/TiO2 NT) electrode substrate and a truncated PAEs aptamer (PAEs-apt). By exploiting spatial variations in the potential resistance of the sensing interface, the biosensor achieved superior sensitivity in determining the concentration of PAEs compared to the SELEX aptamer. It exhibited a linear correlation in the range of 0.005 to 1 ng/mL with a detection limit of 1.67 ng/L. Furthermore, the biosensor displayed excellent selectivity for PAEs, with an analysis error factor below 0.277 when the concentration of interfering species was 100 times that of the target. The high performance of the biosensor was attributed to the excellent photoelectronic properties of CdS NPs/TiO2 NTs, high density of PAEs-apt for PAEs, high affinity of PAEs-apt for PAEs, and specific recognition of PAEs. Notably, this PEC biosensor could be used for the PAEs assay in urine and water samples, providing a sensitive and simple analytical method for detecting the same class of compounds with similar chemical structures in complex samples.
研究领域:
环境科学
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分析化学
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生物传感器
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材料科学
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DOI
PubMed
高影响因子
POLYMERS FOR ADVANCED TECHNOLOGIES
·
2016
·Vol. 28
·期 6
·658-664
·
IF 1.823
Qiyang Jiang,Jinmeng Hao,Yanfeng Wei,Jianxin Mu
Block and random polyhedral oligomeric silsesquioxane (POSS)/fluorinated poly aryl ether sulfone tricopolymers were synthesized using different synthetic strategies to investigate the effect of sequence distribution on their thermal, dielectric, and surface properties. Analyses indicated that all block and random copolymers showed similar growth tendency of water contact angles and T g values, downward tendency of k values with increased content of POSS. The block copolymer displayed higher T g values up to 187°C than random copolymers (173°C) under the same POSS molar percentage, which were highly related to their different sequence distribution. The dielectric constants of the tricopolymers were drastically reduced because of the presence of POSS and fluorine, and the dielectric constant could achieve as low as 2.71 (1 MHz). Besides, sequence distribution has no obvious influence on its surface properties and properties. Meanwhile, the yields of degradation residues of the tricopolymers were significantly improved by the ceramic formation from POSS moieties during thermal decomposition. Copyright © 2016 John Wiley & Sons, Ltd.
研究领域:
材料科学
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高分子化学
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DOI
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2020
·
IF 6.551
Nai-Xian Feng,Qi-Feng Liang,Yu-Xi Feng,Lei Xiang,Hai-Ming Zhao,Yan-Wen Li,Hui Li,Quan-Ying Cai,Ce-Hui Mo,Ming-Hung Wong
Phthalate acid esters (PAEs) are ubiquitous pollutants in agricultural soils . Application of bioorganic fertilizer (BOF) containing beneficial microbes represents a promising approach to improve the yield and quality of crops grown in contaminated soils. In the present study, a novel multifunctional bioorganic fertilizer N-BOF was developed by using compost of sewage sludge and agricultural waste and inoculating with PAEs-degrading B. megaterium YJB3 and phosphate solubilizing B. megaterium YLYP1. Its feasibility of improving the yield and quality of vegetable grown in PAEs (including DBP and DEHP) contaminated soil was evaluated by pot experiments. The N-BOF could effectively promote plant growth, with biomass increasing by 4–66.9% and 19–110% compared to chemical (CF) and no fertilizer (CK), respectively. The concentrations of DBP and DEHP in shoots of chemically fertilised vegetable ranged 1.23–3.12 mg/kg (dry weight, DW) and 1.63–3.89 mg/kg (DW), respectively. Their concentrations were significantly decreased ( p < 0.05) when N-BOF was applied (1%, 2%, 5% amendment), especially at higher application rate ranging 0.11–0.3 mg/kg (DW) and 0.16–0.32 mg/kg (DW), respectively. Meanwhile, vegetable quality attributes were also significantly improved when 2% N-BOF was applied, with increase in the contents of vitamin C , vitamin B1, total protein, and starch, and decrease in the contents of nitrite and nitrate. In this case, the human health risk from consumption of the vegetable grown in PAEs-contaminated soil could be significantly reduced. Thus, our study is expected to provide an efficient way of high-value utilization of organic substrates by producing low-cost but high quality N-BOF. Future studies on the effects of N-BOF in terms of fertilizer regimes on yield and quality of the vegetable are needed, and further field studies for assessing the long-term efficacy and reliability of this promising N-BOF are also warranted.
研究领域:
环境科学
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农业科学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2021
·
IF 10.588
Zhuo Chen,Qianying Wu,Ying Xu,Jinhan Mo
Organic films were widely found on indoor impermeable surfaces exposed to gaseous organic compounds, but few studies have addressed the film growth details on different indoor substrates. In this study, we observed the topography evolution of phthalic acid ester (PAE) organic films on three impermeable substrates: polished glass (G-P), mirror-polished stainless steel (SS-M) and drawn stainless steel (SS-D). PAE organic films were preferentially formed upon the flat surface with sparse inherent nano-peaks of substrate G-P and in valleys of substrate SS-M and SS-D. Surface uniformity of substrates and viscosity of PAE molecules were inferred as critical parameters determining the surface average adhesion forces. We obtained the partition coefficients of DEP , DnBP, BBP and DEHP on substrate G-P, SS-M and SS-D by fitting the initial monolayer adsorption process. Organic films continuously grew instead of reaching adsorption equilibrium after long-term PAE exposure, indicating that multilayer adsorption may occur. The organic film growth rates in saturated gas-phase PAE concentrations were quantified as about one-tenth of the results in previous studies where substrates were simultaneously exposed to multiple pollutants. To sum up, the results outline PAE adsorption details on impermeable materials and provide a reference for better estimation on PAE exposure assessment.
研究领域:
环境科学
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化学
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材料科学
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DOI
高影响因子
DIAMOND AND RELATED MATERIALS
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2023
·
IF 4.1
Xinbo Wu,Wenhui Zhang,Dazhi Wang,Weijie Cai,Shangru Zhai
In this work, using porous PAES as the precursor, a series of Fe 9 S 10 /Carbon composites (PAES-Fe) with excellent electromagnetic wave (EMW) absorbing features were successfully prepared via in situ oxidation technique. The analysis results indicate that the obtained composite material has characteristics such as multi-level pore structure and large specific surface area. Its excellent EMW absorption mechanism is mainly attributed to conductive loss, interface polarization, and dipole polarization. Most importantly, by adjusting the type of Polyvinyl Pyrrolidone (PVP), the pore size of the composite can be optimized to obtain the best impedance matching. The as-prepared PAES-Fe nanomaterials presented the attractive EMW absorption performance in terms of reflection loss (RL), absorption bandwidth as well as absorption layer thickness. When controlling the composite macropore size at 2 μm, the mesoporous pore size was 2–6 nm, the specific surface area was 189.2 m 2 /g, and the pore volume (PV) reached 0.130 cm 3 /g. With the thickness of 2 mm, the minimum RL of PAES-Fe-P reached −31.313 dB at 5.46 GHz. Hence, this type of nanocomposites with tunable pore size characteristics and hierarchical pore structure may have enormous potential for application of EMW absorbers.
研究领域:
材料科学
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电磁学
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产品关联
DOI
高影响因子
ENVIRONMENTAL POLLUTION
·
2024
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IF 7.6
Xiangzhi Zuo,Wenyi Lu,Wanting Ling,Bozena Czech,Patryk Oleszczuk,Xuwen Chen,Yanzheng Gao
Phthalic acid esters (PAEs) are common hazardous organic contaminants in agricultural soil. Microbial remediation is an effective and eco-friendly method for eliminating PAEs. Nevertheless, the operational mode and potential application of immobilized microorganisms in PAEs-contaminated soil are poorly understood. In this study, we prepared an immobilized bacterial agent (IBA) using a cedar biochar carrier to investigate the removal efficiency of PAEs by IBA in the soil. We found that IBA degraded 88.35% of six optimal-control PAEs, with 99.62% biodegradation of low-molecular-weight PAEs (DMP, DEP, and DBP). The findings demonstrated that the IBA achieved high efficiency and a broad-spectrum in degrading PAEs. High-throughput sequencing revealed that IBA application altered the composition of the soil bacterial community, leading to an increase in the relative abundance of PAEs-degrading bacteria ( Rhodococcus ). Furthermore, co-occurrence network analysis indicated that IBA promoted microbial interactions within the soil community. This study introduces an efficient method for the sustainable remediation of PAEs-contaminated soil.
研究领域:
环境微生物学
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土壤学
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生物修复
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DOI
PubMed
高影响因子
BIODEGRADATION
·
2025
·Vol. 36
·期 4
·1-15
·
IF 3.2
Shao Pengfei,Yao Jun,Li Miaomiao,Min Ning
Phthalate esters (PAEs) are widely used as plasticizers and beneficiation flotation agents in ore smelters, which are ubiquitously distributed emerging contaminants in the environment. The biodegradation of PAEs by degrading microbes is a promising method for their remediation. In this study, we isolated a novel PAE-degrading bacteria, Sinomonas sp. S2, from a contaminated area of a metal(loid) smelter in Guangxi Zhuang Autonomous Region, China. Strain S2 is capable of degrading short-chain PAEs, including dimethyl phthalate (DMP), diethyl phthalate (DEP), di-iso-butyl phthalate (DIBP) and di-n-butyl phthalate (DBP). Sinomonas sp. S2 can completely degrade DBP at concentrations of 400 mg·L −1 within 24 h. The degradation kinetics of PAEs followed the modified Gompertz model. Strain S2 demonstrated good environmental adaptability thriving at pH ranging from 5 to 9 and temperatures between 20 and 40 °C, indicated by its growth on DBP. The optimal pH and temperature for degradation were found to be 7 and 40 °C, respectively. Additionally, several metabolites of DBP were identified, including phthalic acid (PA), butyl acetate, ethyl propionate and methyl 2-methylbutyrate. The reconstructed degradation pathway of DBP may involve protocatechuic acid, β-carboxy-cis, cis-mucronate and γ-carboxy muconolactone, ultimately leading to the tricarboxylic acid (TCA). In a bioaugmentation experiment involving soil artificially contaminated with DBP, strain S2 could promote the degradation of DBP in soil. The results indicate that strain S2 had high degradation capacity and environmental tolerance, which had the potential to be applied in the bioremediation of DBP-contaminated environments.
研究领域:
环境科学
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微生物学
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生物技术
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土壤学
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生态毒理学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2020
·
IF 9.038
Naima Hamid,Muhammad Junaid,Rakia Manzoor,Pan-Pan Jia,De-Sheng Pei
Phthalate esters (PAEs) pose prominent ecological risks owing to their multiplex toxicity potentials and ubiquitous detection in the environment. Therefore, this study aims to prioritize the individual and mixtures of six PAEs based on their toxicological implications using in vitro and vivo models exposed at environmentally relevant concentrations. Results were further confirmed using in silico Combination index (CI) and Independent action (IA), and molecular docking models. Among PAEs, DEHP revealed prominent in vitro/vivo toxicity followed by DEP, DBP, and DMP. Importantly, binary mixtures particularly C2-C6 and C11-C15 exhibited greater developmental toxicity, apoptosis, and perturbed the HPG pathway. The CI and IA models forecasted antagonistic and additive effects at Fa = 0.5 and Fa = 0.9 using in vitro Acinetobacter sp. Tox2. Conversely, in zebrafish, the IA model predicted mixture effects in the following order: additive > synergistic > antagonistic on the regulation of the HPG pathway, which was consistent with experimental results from Acridine Orange (AO) staining and apoptosis gene expression. Molecular docking for estrogen receptors (ERα, ERβ) revealed the highest binding energy scores for DEHP, compared to other PAEs. In short, our findings confirm that individual and mixtures of PAEs behave as xenoestrogens in the freshwater ecosystem with DEHP as a priority compound.
研究领域:
环境毒理学
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计算生物学
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分子生物学
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水生生态学
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DOI
PubMed
高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2021
·
IF 7.963
Xingqi Zhu,Lu Jiang,Yizhou Tu,Yuansong Tian,Guizhou Xu,Daishe Wu,Aimin Li,Xianchuan Xie
Poyang Lake is the first freshwater lake in China, which is an important drinking water source. In recent years, industrial pollution has led to the increased phthalate acid esters (PAEs) in Poyang Lake. PAEs are a class of typical endocrine disruptors that can accumulate in organisms and interfere with their secretion systems. Thus, the accurate determination of PAEs in Poyang Lake is important for health risk prediction and the development of corresponding control means. Monitoring organic pollutants in water using the diffusive gradient in thin films technique (DGT) has attracted much attention due to more accuracy and convenience than the traditional methods. This study used an inexpensive amphiphilic cyclodextrin polymer (PBCD) as the sorbent for the binding gel. This new binding gel has an ultra-high specific surface area and excellent adsorption performance. Diffusion coefficients of the five PAEs were determined, and the performance of DGT such as adsorption capacity and deployment time (1–4 days) was tested using five PAEs as models. The assembled PBCD-DGT was used to examine the performance in a complex simulated water environment. The sampling capability of PBCD-DGT was verified in Yangshan Lake, and a large-scale field application was conducted in Poyang Lake basin. The results of 11 sampling points showed that the concentration ranges of dimethyl phthalate, diethyl phthalate, diallyl phthalate, dipropyl phthalate, and dibutyl phthalate were 434–2594 ng/L, 40–314 ng/L, 80–527 ng/L, 45–308 ng/L, and ND-182 ng/L, respectively. The health risk index (HI) and ecological risk quotient (RQ) values of PAEs in the Poyang Lake watershed were far below 1, indictating a lower health and ecological risk. Considering that PAEs are bioaccumulative and persistent, it is very necessary to continue to pay attention to its pollution status and health and ecological risk changes in Poyang Lake Basin in the future.
研究领域:
环境科学
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分析化学
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水资源管理
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毒理学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2026
·
IF 2.8
Kun Chen,Zhuang Zhou,Dazhi Wang,Shaoyin Zhang
Free glucose oxidase (GOx) exhibits high specificity and catalytic efficiency under mild conditions; however, its practical application is limited by poor stability and reusability. In this study, a magnetic nanofiber carrier was fabricated from carboxyl-functionalized polyaryl ether sulfone (PAES-COOH) nanofibers via a facile acid precipitation method. The preparation parameters of the magnetic PAES-COOH nanofiber carrier (MNPAES) and the immobilization conditions for GOx were systematically optimized. The structural and surface properties of PAES-COOH nanofibers and MNPAES were characterized by SEM, FT-IR, XPS, 1 H NMR, GPC, and BET analyses. Compared with pristine nanofibers, MNPAES exhibited an increased specific surface area (from 9.5 to 21.1 m 2 /g) and an enlarged average pore size (from 2.3 to 123 nm), facilitating enzyme immobilization. GOx immobilized on MNPAES (GOx@MNPAES) showed a lower apparent K m value and a higher V max / K m ratio than free GOx, indicating enhanced apparent catalytic efficiency. In addition, GOx@MNPAES demonstrated good storage stability, rapid magnetic separation, and high reusability, retaining approximately 60% of its initial activity after 20 cycles. These results suggest that magnetic PAES-COOH nanofibers are effective carriers for GOx immobilization.
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产品关联
DOI
高影响因子
TOXICOLOGY AND APPLIED PHARMACOLOGY
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2023
·
IF 3.8
Jia-min Gong,Xiao-lei Yi,Jia-hong Liang,Zhen-zhong Liu,Zuo Du
Phthalate esters (PAEs), accompanied by phthalate monoesters as hydrolysis metabolites in humans, have been widely used as plasticizers and exhibited disruptive effects on the endocrine and metabolic systems. The present study aims to investigate the inhibition behavior of PAEs and phthalate monoesters on the activity of the important hydrolytic enzymes , carboxylesterases (CESs), to elucidate the toxicity mechanism from a new perspective. The results showed significant inhibition on CES1 and CES2 by most PAEs, but not by phthalate monoesters, above which the activity of CES1 was strongly inhibited by DCHP, DEHP, DiOP, DiPP, DNP, DPP and BBZP, with inhibition ratios exceeding 80%. Kinetic analyses and in vitro-in vivo extrapolation were conducted, revealing that PAEs have the potential to disrupt the metabolism of endogenous substances catalyzed by CES1 in vivo . Molecular docking results revealed that hydrogen bonds and hydrophobic contacts formed by ester bonds contributed to the interaction of PAEs towards CES1. These findings will be beneficial for understanding the adverse effect of PAEs and phthalate monoesters.
研究领域:
生物化学
·
毒理学
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产品关联
DOI
PubMed
高影响因子
ENVIRONMENT INTERNATIONAL
·
2025
·
IF 9.7
Yingying Sun,Jie Chen,Wei Wang,Lizhong Zhu
Phthalate esters (PAEs) were ubiquitous in agricultural soils and could be metabolized after being absorbed by crops, posing significant implications for crop yield and quality. We hypothesize that monophthalates (mPAEs), the hydrolyzed products of PAEs, might mimic phytohormone jasmonic acid (JA) to activate the JA signaling pathway, therefore enhancing the defense towards pests and inhibiting the rice plant growth. Taking dibutyl phthalate (DBP) as a representative PAE, our study discovered that DBP exposure significantly induced JA-related outcomes including decreased larval weight (9.58–18.8%), and rice biomass (11.7–34.2%). Under the conditions where the JA content remained unchanged, monobutyl phthalate (MBP), the hydrolyzed product of DBP, triggered the JA signaling pathway, evidenced by significantly upregulated genes encoding coronatine insensitive 1 (COI1) (1.56–1.73 fold), jasmonate ZIM-domain (JAZ) (4.33–7.71 fold), MYC2 transcription factor (2.07–2.87 fold), and promoted phytoalexins production in downstream signaling. MBP conjugated with isoleucine, and the conjugate subsequently mimicked a JA bioactivator (JA-isoleucine conjugate) to occupy the binding site of COI1-JAZ co-receptor protein, thereby initiating the JA signaling pathway. These JA-related outcomes and mechanism were consistently evidenced in rice exposed to other four typical PAEs, and the aliphatic chain length of selected PAEs indicated a negative contribution to these observations. In this study, we discovered a unconventional mechanism through which the transformation metabolites of PAEs elicit pest defense while simultaneously inhibiting rice growth, providing insights into the risk assessment of PAEs on crop yields and quality.
研究领域:
环境科学
·
植物生理学
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农业科学
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产品关联
DOI
PubMed
高影响因子
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