SCIENCE OF THE TOTAL ENVIRONMENT
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2022
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IF 10.753
Huifang Wu,Yubing Chen,Mengqi Xu,Yuwei Ling,Shiying Ju,Yanfeng Tang,Changlun Tong
Tetracyclines residues, particularly oxytetracycline (OTC) and tetracycline (TC), have raised extensive concern because of their serious adverse effects on human health. Herein, a dual-response fluorescent probe based on nitrogen-doped carbon dots (N-CDs) and Eu 3+ hybrid (N-CDs–Eu 3+ ) was developed to selectively determine OTC and TC. The N-CDs act as ancillary ligands of Eu 3+ and recognition units of OTC/TC, while the Eu 3+ ions chelated with N-CDs can also specifically recognize OTC/TC. Upon inclusion of OTC/TC, an enhancement in Eu 3+ emission occurs due to the energy transfer from OTC/TC to Eu 3+ and the efficient elimination of quenching effect caused by H 2 O molecule, which is attributed to the incorporation of N-CDs; while the blue fluorescence emitted by the N-CDs decreases under the inner filter effect and static quenching effect caused by OTC/TC. Based on the double and reverse response signals, the ratiometric detection of OTC and TC in the range of 0.1–45 μΜ and 0.1–30 μΜ is achieved with a detection limit of 0.017 and 0.041 μM, respectively. In addition, the noticeable variation in fluorescence color of the probe is integrated with a smartphone-assisted analysis device for the rapid on-site quantitative assay of OTC, where the detection limit is 0.15 μΜ. The results show that this probe performs with excellent specificity and anti-interference for both OTC and TC, and satisfactory detection results are obtained in lake water, milk, and honey samples, thereby confirming that the probe exhibits promising application in food safety and environmental monitoring.
研究领域:
分析化学
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环境科学
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食品安全
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产品关联
DOI
PubMed
高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2019
·Vol. 26
·期 6
·6209-6215
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IF 2.914
Shi Hui,Bai Cuihua,Luo Donglin,Wang Wei,Zhou Changmin,Meharg Andrew A.,Yao Lixian
The environmental and human health risk posed by veterinary antibiotics is of global concern. Antibiotic uptake by herbal plants has been studied, but little is known about perennial woody fruit crops. Litchi ( Litchi chinensis Sonn.), a longevial fruit tree, is routinely fertilized with animal manure and, therefore, may be at risk of antibiotic uptake into its fruits. This study investigated the degradation of chlortetracycline and doxycycline present in manure used to amend orchard soil, and their subsequent assimilation by litchi plant, as affected by manure application rate. The results show that half-lives of chlortetracycline and doxycycline in soil were decreased by increased manure rate, with an average of 27 and 59 days, respectively. Chlortetracycline was readily transported to litchi shoots and increased with the growth of litchi plants. Doxycycline predominantly remained in the roots, and underwent growth dilution in the plants. The two tetracyclines could not be detected in fruits from litchi trees when applied with manures, at various rates, over 2 years. For litchi, chlortetracycline may pose human health risk through manure application, but doxycycline is unlikely to do so. Long-term field experiments are required to monitor antibiotic accumulation in fruits of perennial fruit trees fertilized with animal manure.
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 Environmental Chemical Engineering
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2025
·
IF 7.2
Wenwei Tang,Meihuan Tong,Hui Liao,Peiqi Zhang,Xinping Zeng
Aureomycin (CTC) is a commonly used tetracycline antibiotic that causes water and soil pollution and greatly endangers the environment and human health. Microbial degradation to remove residual antibiotics in wastewater is of growing interest. Due to its unique structure and excellent oxidative properties, biogenic manganese oxides (BMO) has been widely studied in the field of water pollutant removal. However, the current preparation of BMO generally suffers from low yield and insufficient production efficiency. In this paper, an efficient manganese-oxidizing bacterium Bacillus sp. D-1 was isolated. Manganese-oxidizing engineering bacteria were constructed to achieve rapid and sufficient BMO production, and the structure and function of the BMO was characterized. SEM was used to characterize the layered structure of the nanoparticles. XPS and XRD were used to determine that the mixture was composed of manganese species with three valence states. BMO was used to degrade 10 mg·L −1 CTC, and the CTC removal rate reached 93.2 % in 24 h, with an optimal reaction pH of 7.6. Finally, LCMS and ECOSAR were used to analyze the oxidative degradation products of CTC and their biological toxicity. Therefore, this paper successfully constructed a high-performance manganese-oxidizing engineering bacterium, revealed the efficient degradation mechanism of CTC by BMO, provided a new strategy for the green treatment of combined pollution of manganese and antibiotics in water bodies, and realized the continuous removal of manganese and water pollutants.
研究领域:
环境微生物学
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环境工程
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分子生物学
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污染物生物修复
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水处理技术
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产品关联
DOI
高影响因子
Journal of Environmental Sciences
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2016
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IF 2.208
Wenbo Wang,Guangyan Tian,Li Zong,Yanmin Zhou,Yuru Kang,Qin Wang,Aiqin Wang
A series of mesoporous silicate adsorbents with superior adsorption performance for hazardous chlortetracycline (CTC) were sucessfully prepared via a facile one-pot hydrothermal reaction using low-cost illite/smectite (IS) clay, sodium silicate and magnesium sulfate as the starting materials. In this process, IS clay was “teared up” and then “rebuilt” as new porous silicate adsorbent with high specific surface area of 363.52 m 2 /g (about 8.7 folds higher than that of IS clay) and very negative Zeta potential (− 34.5 mV). The inert Si O Si (Mg, Al) bonds in crystal framework of IS were broken to form Si(Al) O − groups with good adsorption activity, which greatly increased the adsorption sites served for holding much CTC molecules. Systematic evaluation on adsorption properties reveals the optimal silicate adsorbent can adsorb 408.81 mg/g of CTC (only 159.7 mg/g for raw IS clay) and remove 99.3% (only 46.5% for raw IS clay) of CTC from 100 mg/L initial solution (pH 3.51; adsorption temperature 30°C; adsorbent dosage, 3 g/L). The adsorption behaviors of CTC onto the adsorbent follows the Langmuir isotherm model, Temkin equation and pseudo second-order kinetic model. The mesopore adsorption, electrostatic attraction and chemical association mainly contribute to the enhanced adsorption properties. As a whole, the high-efficient silicate adsorbent could be candidates to remove CTC from the wastewater with high amounts of CTC.
研究领域:
环境科学
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材料科学
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水污染控制
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吸附技术
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矿物加工
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环境功能材料
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DOI
高影响因子
JOURNAL OF ENVIRONMENTAL MANAGEMENT
·
2024
·
IF 8
Qingcheng Cao,Cuncheng Liu,Li Chen,Yuanhang Qin,Tielin Wang,Cunwen Wang
Hermetia illucens larvae showcases remarkable bioremediation capabilities for both antibiotics and heavy metal contaminants. However, the distinctions in larval intestinal microbiota arising from the single and combined effects of antibiotics and heavy metals remain poorly elucidated. In this study, we delved into the details of larval intestinal bacterial communities and microbial metabolites when exposed to single and combined contaminants of oxytetracycline (OTC) and hexavalent chromium (Cr(VI)). After conversion, single contaminant-spiked substrate showed 75.5% of OTC degradation and 95.2% of Cr(VI) reductiuon, while combined contaminant-spiked substrate exhibited 71.3% of OTC degradation and 93.4% of Cr(VI) reductiuon. Single and combined effects led to differences in intestinal bacterial communities, mainly reflected in the genera of Enterococcus , Pseudogracilibacillus , Gracilibacillus , Wohlfahrtiimonas , Sporosarcina , Lysinibacillus , and Myroide . Moreover, these effects also induced differences across various categories of microbial metabolites, which categorized into amino acid and its metabolites, benzene and substituted derivatives, carbohydrates and its metabolites, heterocyclic compounds , hormones and hormone-related compounds, nucleotide and its metabolites, and organic acid and its derivatives. In particular, the differences induced OTC was greater than that of Cr(VI), and combined effects increased the complexity of microbial metabolism compared to that of single contaminant. Correlation analysis indicated that the bacterial genera, Preudogracilibacillus , Enterococcus , Sporosarcina , Lysinibacillus , Wohlfahrtiimonas , Ignatzschineria , and Fusobacterium exhibited significant correlation with significant differential metabolites, these might be used as indicators for the resistance and bioremediation of OTC and Cr(VI) contaminants. These findings are conducive to further understanding that the metabolism of intestinal microbiota determines the resistance of Hermetia illucens to antibiotics and heavy metals.
研究领域:
环境科学
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微生物学
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生态毒理学
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产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2021
·
IF 7.514
Yantong Pan,Zhaopeng Wang,Changfei Duan,Leina Dou,Kai Wen,Zhanhui Wang,Xuezhi Yu,Jianzhong Shen
The two sensitive fluorescence quantitative immunochromatographic assays (FQICAs), background fluorescence quenching immunochromatographic assay (bFQICA) and time-resolved fluorescent immunochromatographic assay (TRFICA), play an important role increasingly in rapid detection technology for food safety. Amantadine (AMD), used extensively in virus infections in livestock and poultry, has been prohibited due to hazard concerns over public human health. Therefore, AMD was used as a model molecule in the FQICAs establishment and comparison based on the same bioreagents. The outstanding performance in technical parameters of the two FQICAs indicated that they could provide rapid, precise, reliable technical support for large-scale on-site screening for AMD detection. What’s more, the systematic and comprehensive comparison of the two FQICAs would give useful suggestions for scientists and users in monitoring the harmful compounds.
研究领域:
食品安全检测
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免疫学
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分析化学
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DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
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IF 6.633
Fei Wang,Jiuyan Chen,Yanxiang Li,Taotao Lu,Weifeng Chen,Zhichong Qi,Xinhai Wang,Usman Farooq
Tetracyclines (TCs), a class of antibiotics that are most widely used veterinary and human medicine, possessed an ability to produce irreversible damage towards humans and environment. Antibiotics transport and deposition are critical processes in their environmental fate. In this study, the mobility properties of various TCs such as oxytetracycline (OTC), chlortetracycline (CTC) and tetracycline (TC), in quartz sand columns with sodium dodecylsulfate (SDS), a typical anionic surface-active agent over the pH array of 5.0∼9.0 were investigated. The mobility of TCs through the column was in the order: OTC > TC > CTC. The difference in the molecular structures of various TC antibiotics could explain the trend. Interestingly, SDS enhanced TC transport via deposition site competition between surfactant and TC molecules, increased electrostatic interaction, and steric hindrance. SDS, on the other hand, inhibited OTC and CTC mobility primarily owing to the strong aquaphobic collaboration between antibiotics and the absorbed surfactant on the sand surface (i.e., SDS molecules as bridge agents between antibiotics and sand grains). Furthermore, at higher pH conditions (5.0∼9.0), the enhanced or inhibitory effect of surfactant on the mobility of TCs declined. The observed decrease in the steric hindrance effect, competitive deposition, or hydrophobic interaction was attributed to the decreased deposition of SDS. Innovative information obtained from this work provides insight into the important role of an anionic surfactant on the mobility and deposition of various tetracycline antibiotics in aquifers.
研究领域:
环境科学
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化学
·
药学
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DOI
高影响因子
MICROCHEMICAL JOURNAL
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2025
·
IF 5.1
Le-Yan Feng,Zhenhua Tang,Nuan Xu,Jiaxin Huang,Yan-Ping Jiang,Xin-Gui Tang,You Zeng,Shang-Xian Chen
Antibiotics play an essential function in treating various diseases. However, their overuse has led to water pollution and food safety issues. This work discusses a highly sensitive ratiometric fluorescent flexible sensor based on multifunctional 4-MU@ZIF-8@PLA-PEG composite film prepared using a low-toxicity, eco-friendly and self-assembly method. The sensor combines the luminescent properties and structural tunability of ZIF-based composites with the processability and flexibility of polymers. The 4-MU@ZIF-8@PLA-PEG sensor can detect tetracycline (TC), oxytetracycline (OTC), chlortetracycline hydrochloride (CTC⋅HCl), and doxycycline hydrochloride (DOX⋅HCl) with dual-emission ratiometric fluorescence, exhibiting a visible color change from blue to yellow, with detection limits of 0.058 nM, 16.806 nM, 2.113 nM and 20.510 nM, respectively. The fluorescence characteristics exhibit excellent linear relationships with TC detection in tap water and milk, and show inhibition rates of 87.27 % and 76.61 % against E. coli and S. aureus . With its antibacterial activity, visual detection, high sensitivity, and short detection time, this sensor has significant potential for detecting antibiotics in aquatic environments and food safety applications.
研究领域:
分析化学
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材料科学
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环境监测
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食品安全
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传感技术
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纳米技术
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荧光光谱学
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Yujun Ju,Jianwei Zhang,Qinyu Cai,Zhengze Zhang,Yan Zhao,Jianguo Cui,Ruien Hou,Yi Wei,Zhiqiang Liang,Fengjuan Chen
Polluted water caused by antibiotics leads to serious risks to human health and ecosystem. Rapidly and efficiently treating antibiotic pollutions to make it safe is urgently needed for environmental protection and public health. Herein, we report that ZIF-67 derived nano-cube Co 3 O 4 as model catalysts were immobilized in the rotary-angle three-dimensional (3D) printed multilayer reduced graphene oxide/carbon nanotubes (Co 3 O 4 /R-rGO/CNTs) membrane for the highly efficient degradation of antibiotic pollutants through sulfate radical-based advanced oxidation process (SR-AOP). The macropores in the designed Co 3 O 4 /R-rGO/CNTs membrane are distributed in a rotationally staggered arrangement, which increases the opportunity for contaminant contact with the catalyst. The micro-cellular structures formed by the freeze-casting treatment in Co 3 O 4 /R-rGO/CNTs membrane provide abundant anchor sites for catalysts as-well-as plentiful active sites for catalytic reactions. The degradation efficiency of the designed membrane toward aureomycin hydrochloride (CTC) reached 99.3% at a flux rate of 636.9 L m −2 h −1 , which is increased by 100% comparing with the traditional 3D printing membrane with vertical macroporous arrays. This strategy put forward a new idea for the efficient degradation of antibiotic pollutants and has great application prospects in the field of environmental remediation.
研究领域:
环境工程
·
水处理
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材料科学
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纳米技术
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化学工程
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）