PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2026
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IF 7.9
Zilin Nie,Yang Liu,Quanhua Xie,Lu Ran,Tianyi Hu,Haixing Chang,Hassan Karimi-Maleh,Wenliang Fan,Haiyan Yao,Nianbing Zhong
Glyphosate is a persistent herbicide that contaminates water and poses health risks, yet conventional removal methods remain limited. Photocatalysis offers a promising alternative but is hindered by issues such as charge recombination, poor light utilization, and the formation of phosphate (PO 4 3- ) by-products. In this study, a coupled system is constructed, comprising ZnIn 2 S 4 nanocage (ZIS-HNCs)/BiOCl mesoporous single-crystal nanosheet (BiOCl MSCN) heterojunction–photocatalytic optical and Fe-modified zeolite fibers, to completely remove glyphosate from aqueous environments. Light radiated from the hollow optical fibers excites the ZIS-HNCs/BiOCl MSCN photocatalyst to generate electron–hole pairs. The formation of a heterojunction between ZIS-HNCs and BiOCl MSCN accelerates interfacial charge transfer, increases the production of holes and electrons, and consequently enhances their performance in degrading glyphosate. PO 4 3- produced from photocatalytic degradation is removed in situ by the Fe-modified zeolite fibers through Fe–O–P coordination and electrostatic adsorption. This suppresses the quenching of photogenerated electron–hole pairs by PO 4 3- , further enhancing the efficiency of glyphosate degradation and inhibiting the formation of phosphate by-products. The photocatalysis–ion adsorption coupling strategy provides a novel and effective approach for the simultaneous removal of pesticide residues from aquatic environments.
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高影响因子
TALANTA
·
2026
·
IF 6.7
Doudou Lei,Pengyue Song,Xueying Li,Jianhua Yang,Jiabo Wang,Bin Li,Ping Zhang,Weijun Kong
An innovative fluorescent/photothermal dual-modal sensor was developed. • N-CDs/GSH-Fe nanoflowers displayed fluorescence and photothermal responses as signal probes. • Two modes worked synergistically, validating each other to enhance the detection accuracy and reliability. • LODs lowed to 2.34 ng/mL in fluorescent and 3.68 ng/mL in photothermal modes for glyphosate. • Real applications in complex malt and ginger samples confirmed its excellent accuracy. The reliable detection of glyphosate (Gly) in complex samples remains a critical challenge due to inevitable interference of matrices and unpredictable factors. Conventional single-signal sensors are often susceptible to environmental fluctuations, leading to false-positive or false-negative results. This study aimed to develop a novel fluorescent/photothermal dual-modal sensor based on N-CDs/GSH-Fe nanoflower as the signal probe for the sensitive and accurate detection of Gly in complex matrices. A dual-modal sensing strategy was established by integrating fluorescence and photothermal signals into a single nanoprobe, enabling self-validation and mutual calibration between the two detection modes. Nitrogen-doped carbon dots (N-CDs) were synthesized via a hydrothermal method and subsequently complexed with glutathione-iron (GSH-Fe) to construct the N-CDs/GSH-Fe nanoflower probe, which exhibited excellent fluorescence and photothermal responses. The detection mechanism was investigated, and the analytical performance of both modes was evaluated under optimized conditions. Medicinal and edible malt and ginger were used as representative real samples to validate the practical applicability of the sensor. In the presence of Gly, the fluorescence signal of the nanoprobe was effectively quenched through a dynamic mechanism, while a distinct temperature change was simultaneously generated by the photothermal effect. Under optimized conditions, the fluorescent mode exhibited a linear range of 10-250 ng/mL with a limit of detection (LOD) of 2.34 ng/mL, whereas the photothermal mode achieved a broader linear range of 10-2000 ng/mL with a LOD of 3.68 ng/mL. The spiked recovery rates for the fluorescent mode ranged from 97.02% to 113.26%, while the photothermal mode achieved recoveries between 93.94% and 106.06% in medicinal and edible malt and ginger samples. The proposed dual-modal sensor offered high sensitivity, strong anti-interference capability, and operational simplicity, providing a promising strategy for the rapid and accurate detection of trace Gly residues in complex matrices and holding significant value for ensuring food quality and safety. Download: Download high-res image (313KB) Download: Download full-size image
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高影响因子
TALANTA
·
2025
·
IF 6.1
Qin Gao,Yanfang Zhao,Lihua Lu,Lei Han,Lubin Xu
Glyphosate (Gly), a widely used potent herbicide worldwide, possess potential harm to human health and environment due to accumulation in water and soil. Hence, there is a pressing need to realize the simple and precise detection of Gly to ensure human health and environmental safety. Although various nanozyme-based detection methods have been developed for Gly, they frequently require additional enzymes and hydrogen peroxide (H 2 O 2 ). H 2 O 2 not only exhibits certain toxicity but is also prone to decomposition, resulting in poor accuracy and reproducibility. In this study, we report the synthesis of nanoscale copper-based metal-organic framework (Cu-MOF) through a facile ultrasound method, and the resulting Cu-MOF demonstrate excellent laccase-mimicking activity. Our Cu-MOF nanozyme can catalyze the conversion of substrates into chromogenic products without the need for H 2 O 2 , offering a simple and mild operational approach. The presence of Gly significantly inhibits the catalytic activity of the Cu-MOF, hindering the chromogenic reaction between 2,4-dichlorophenol (2,4-DP) and 4-aminoantipyrine (4-AP). We propose a detection method for Gly that is repeatable, reliable, highly selective, and cost-effective, eliminating the need for additional H 2 O 2 , or bioenzymes. This facile strategy paves a new path for the applications of laccase-mimicking nanozyme in environmental monitoring.
研究领域:
环境科学
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生物化学
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PubMed
高影响因子
MICROCHEMICAL JOURNAL
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2025
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IF 5.1
Xiutan Peng,Yuqing Xu,Weiye Zhou,Yiting Tao,Haiyan Fu,Siying Che,Yuanbin She
Evaluation of glyphosate content in tea products is a food safety topic worthy of social attention due to most glyphosate is dissolved in water as well during tea brewing. So it requires that the probe can not only realize the sensitive detection of glyphosate, but also has good water solubility to realize the practical detection of glyphosate in water-based samples such as tea infusions. To better suit the demands of practical applications, a water-soluble quinoline fluorescent ionic liquid probe (EHQCA) was synthesized for the sensitive detection of glyphosate by fluorescence “turn-off-on”. Interestingly, the introduction of the imidazolium cation module easily achieved the switchable water solubility of the fluorophore without complex group modification. According to the different competitive coordination ability, EHQCA-Cu 2+ with fluorescence-off was first constructed, and then Cu 2+ was captured by glyphosate to restore fluorescence. The probe behaved a sensitive (detection limit of 2.2 × 10 −8 M), rapid (less than 5 s) and selective response (among 20 interferences) to glyphosate. Meaningfully, satisfactory recovery (98–103 %) and low RSD (< 1.27 %) were obtained in 12 green tea infusions from different varieties and origins. Therefore, the ionic liquid-based fluorescent probes offers strong technical support for the detection of pesticides in foods such as tea, and have broad prospects in the field of food safety monitoring and evaluation.
研究领域:
分析化学
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食品安全
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环境监测
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荧光光谱
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农药检测
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高影响因子
CELLULOSE
·
2024
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IF 4.9
Gu Jie,Yi Wenbo,Liu Xinru,Ru Yue,Tan Liping,Liu Tongjun
Research on the use of nanoparticles for pollutant adsorption has received increasing attention. However, there are problems with the recovery and persistence of nanoparticles in pollutant removal processes. Herein, ferric hydroxide-bacterial cellulose (BC) nanocomposites with high porosity were synthesized via in situ mineralization and employed to efficiently remove glyphosate from wastewater. The prepared BC@Fe(OH) 3 nanocomposites were comprehensively characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy, which indicated that the Fe(OH) 3 nanoparticles were well positioned on the surface of BC, and the specific surface area of the BC@Fe(OH) 3 nanocomposites reached 179.14 m 2 g −1 , with a pore volume and average pore diameter (0.766 m 2 g −1 and 21.6 nm) much larger than those of pristine BC (0.412 m 2 g −1 and 12.6 nm) and unsupported Fe(OH) 3 (0.016 m 2 g −1 and 20.7 nm). Batch adsorption experiments revealed that the synthesized BC@Fe(OH) 3 nanocomposites had better adsorption performance than unsupported Fe(OH) 3 and pristine BC; the maximum glyphosate adsorption capacity was 180.48 mg g −1 according to the fitting results of the Langmuir adsorption isotherm. We also investigated the kinetics and adsorption mechanism of glyphosate on BC@Fe(OH) 3 . The results showed that the adsorption of glyphosate involved multiple physical and chemical processes, such as electrostatic interactions, ligand exchange, hydrogen bond formation, and pore diffusion. Moreover, this material showed a high reuse rate and maintained approximately 50% of its adsorption capacity after four consecutive adsorption–desorption cycles. Thus, BC@Fe(OH) 3 nanocomposites are expected to be promising, eco-friendly adsorbents for effectively removing glyphosate from wastewater.
研究领域:
环境科学
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材料科学
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纳米技术
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水处理
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高影响因子
MICROCHEMICAL JOURNAL
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2024
·
IF 4.9
Yijie Wang,Xudong Wu,Dan Chen,Linqian Hou,Dezhi Yang,Hong Li,Yaling Yang
The rapid and sensitive detection of glyphosate herbicide in agricultural products is urgent need. Herein, we develop a photosensitive Fe 3 O v -Mo/P nanozyme with defect-rich rough surface by the co-precipitation method. In particular, the Fe 3 O v -Mo/P nanozyme with high-percentage oxygen vacancy (OV) defects and rough surface exhibited superior peroxidase (POD)-like activity and kinetics. More intriguingly, Fe 3 O v -Mo/P nanozyme with strong optical absorption in near-infrared (NIR) region showed excellent light-promoted POD-like activity. It was found that the defect-rich rough surface is conducive to the adsorption of glyphosate to inhibit the POD-like activity of Fe 3 O v -Mo/P. Under near-infrared laser irradiation, the inhibitory effect of glyphosate on the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) by Fe 3 O v -Mo/P was increased by 2.64 times. A colorimetric platform was developed for the detection of glyphosate with a low detection limit of 0.032 mg L -1 and good selectivity. The method was used to determine the residual glyphosate in coffee, and the recovery efficiency was between 91.20–104.00 %. This work that combines the advantage of defect engineering and NIR provides a strategy for developing high-active nanozyme in pesticide assay.
研究领域:
分析化学
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环境科学
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生物技术
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高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
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2022
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IF 10.753
Biao Yan,Jian Han,Yumiao Sun,Lei Lei,Jing Yuan,Zhixian Qiao,Jun Men,Xin Wang,Yongyong Guo,Qidong Wang,Bingsheng Zhou
Glyphosate (GLY) contamination widely occurred in aquatic environments including aquaculture systems and raised hazard to aquatic organisms such as fish. Probiotics have been reported to alleviate contaminants-induced toxicity. However, whether probiotics could reduce the health risk of GLY to fish remain unknown. Here we investigated the impacts of GLY on crucian carp ( Carassius auratus ) by focusing on the protective roles of two commonly used aquaculture probiotics, Bacillus coagulans (BC) and Clostridium butyricum (CB). Exposure to GLY significantly caused growth retardation and reduced visceral fat and intestinal lipase activity in crucian carp. 16S rRNA sequencing indicated that dysbiosis of Bacteroidetes at phylum level and Flavobacterium at genus level might be primarily responsible for GLY-induced negative growth performance. High throughput targeted quantification for metabolites revealed that GLY changed intestinal metabolites profiles, especially the reduced bile acids and short-chain fatty acids. However, the addition of BC or CB effectively attenuated the adverse effects above by remodeling the gut microbiota composition and improving microbial metabolism. The present study provides novel evidence for ameliorating the harmful effects of GLY on fish species by adding probiotics, which highlights the potential application of probiotics in reducing the health risks of GLY in aquatic environment.
研究领域:
水产养殖学
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环境毒理学
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微生物学
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PubMed
高影响因子
FOOD CHEMISTRY
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2026
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IF 10.4
Qiulan Li,Jiahe Dai,Yaling Yang,Linqian Hou,Hong Li
In this study, an “off” signal chemiluminescence (CL) sensor was designed for the detection of glyphosate (Gly) based on Cu-CDs/ABEI@Ag as CL enhancers. Copper-doped carbon dots (Cu-CDs) was synthesized through a sample microwave digestion approach, and AgNO 3 was reduced to silver nanoparticles (AgNPs) utilizing N-(4-aminobutyl)-N-ethylisoluminol (ABEI) and prepared Cu-CDs as mild reducing agents. The Cu-CDs and AgNPs demonstrated peroxidase (POD)-like properties, facilitating the breakdown of H 2 O 2 into reactive oxygen species (ROS) such as ∙OH, ∙O 2 − , and 1 O 2 to generate CL signal. By integrating ABEI into the catalyst system, the CL reagent became concentrated within the catalyst structure, minimizing the spatial separation between the catalyst and ABEI, thus amplifying the CL response. Notably, Gly can inhibit POD-like activity by interaction between Cu-CDs/ABEI@Ag and Gly, thus decrease the CL intensities produced from oxidation of ABEI. Based on this highly sensitive “off” response in CL, a CL nano-sensor was developed for Gly detection, achieving a detection limit of 3.87 μg/L. Furthermore, satisfactory spiked recovery rates (95.86–111.13%) were obtained in coffee samples, highlighting the sensor's promising applicability for on-site Gly monitoring.
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PubMed
高影响因子
SENSORS
·
2020
·Vol. 20
·期 15
·4146
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IF 3.275
Chuxuan Zhang,Xinqiang Liang,Yuanyuan Lu,Hua Li,Xiangyang Xu
Glyphosate, which has been widely reported to be a toxic pollutant, is often present at trace amounts in the environment. In this study, a novel copper-aluminum metal hydroxide doped graphene nanoprobe (labeled as CuAl–LDH/Gr NC) was first developed to construct a non-enzymatic electrochemical sensor for detection trace glyphosate. The characterization results showed that the synthesized CuAl–LDH had a high-crystallinity flowered structure, abundant metallic bands and an intercalated functional group. After mixed with Gr, the nanocomposites provided a larger surface area and better conductivity. The as-prepared CuAl–LDH/Gr NC dramatically improved the enrichment capability for glyphosate to realize the stripping voltammetry detection. The logarithmic linear detection range of the sensor was found to be 2.96 × 10−9–1.18 × 10−6mol L−1with the detection limit of 1 × 10−9mol L−1with excellent repeatability, good stability and anti-interference ability. Further, the sensor achieved satisfactory recovery rates in spiked surface water, ranging from 97.64% to 108.08%, demonstrating great accuracy and practicality.Keywords:electrochemical detection;glyphosate;layer double hydroxides;sensor
研究领域:
环境科学
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分析化学
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纳米技术
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水质监测
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高影响因子
SCIENCE OF THE TOTAL ENVIRONMENT
·
2021
·
IF 7.963
Changsong Li,Yijing Li,Qiang Li,Junling Duan,Juying Hou,Qin Hou,Shiyun Ai,Houshen Li,Yuechao Yang
Phosphates and organophosphorus cause environmental pollution , and excessive phosphate leads to water eutrophication . Glyphosate , an organophosphorus herbicide, harms the environment and human health. In this study, regenerable magnetic AL/Fe 3 O 4 /La(OH) 3 adsorbents were developed by modifying Fe 3 O 4 and La(OH) 3 on aminated lignin (AL) for phosphate and glyphosate removal. The adsorption capacity for phosphate and glyphosate reached 60.36 mg g −1 and 83.87 mg g −1 when the initial concentrations were 150 mg L −1 and 250 mg L −1 , respectively. The thermodynamic data showed that adsorption is a spontaneous and endothermic process. Adsorption can be applied at pH values ranging from 3 to 11 and is more suitable under acidic conditions. Fe 3 O 4 and La(OH) 3 both enhanced the adsorption capacities of phosphate and glyphosate. Phosphate and glyphosate compete slightly when coexisting in the adsorption process at low concentrations. Due to the magnetic properties of Fe 3 O 4 , the adsorbents can be separated rapidly and effectively with an external magnetic field. 89% adsorption capacity remained after four adsorption-desorption recycles. Thus, AL/Fe 3 O 4 /La(OH) 3 shows potential for phosphate and glyphosate removal as an effective and reusable adsorbent.
研究领域:
环境科学
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材料科学
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高影响因子
MICROCHIMICA ACTA
·
2020
·Vol. 187
·期 6
·1-9
·
IF 6.232
Wang Xianfeng,Yang Yixia,Huo Danqun,Ji Zhong,Ma Yi,Yang Mei,Luo Huibo,Luo Xiaogang,Hou Changjun,Lv Jiayi
N-Doped silicon quantum dots (N-SiQD) were synthesized using N-[3-(trimethoxysily)propyl]-ethylenediamine and citric acid as silicon source and reduction agent, respectively. The N-SiQD shows a strong blue fluorescence with a high quantum yield of about 53%. It is found that a selective static quenching process occurs between N-SiQDs and Cu 2+ . Glyphosate can inhibit this phenomenon and trigger the rapid fluorescence enhancement of the quenched N-SiQDs/Cu 2+ system due to the specific interaction between Cu 2+ and glyphosate. With such a design, a turn-on fluorescent nanoprobe based on N-SiQD/Cu 2+ system was established for rapid determination of glyphosate. The determination signal of N-SiQD/Cu 2+ was measured at the optimum emission wavelength of 460 nm after excitation at 360 nm. Under optimal conditions, the turn-on nanoprobe showed a linear relationship between fluorescent response and glyphosate concentrations in the range 0.1 to 1 μg mL −1 . The limit of determination was calculated to 7.8 ng mL −1 (3σ/S). Satisfactory recoveries were obtained in the determination of spiked water samples, indicating the potential use for environmental monitoring.
Schematic representation of N-SiQD/Cu 2+ system for glyphosate determination. Fluorescence quenching of N-SiQDs induced by copper ions and the succedent fluorescent “turn on” triggered by glyphosate
研究领域:
分析化学
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环境科学
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纳米技术
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PubMed
高影响因子
ENVIRONMENTAL POLLUTION
·
2020
·
IF 6.793
Tao Lu,Nuohan Xu,Qi Zhang,Zhenyan Zhang,Andries Debognies,Zhigao Zhou,Liwei Sun,Haifeng Qian
Glyphosate , one of the most popular herbicides, has become a prominent aquatic contaminant because of its huge usage. The eco-safety of glyphosate is still in controversy, and it is inconclusive how glyphosate influences aquatic microbial communities . In the present study, the effects of glyphosate on the structure and function of microbial communities in a freshwater microcosm were investigated. 16S/18S rRNA gene sequencing results showed that glyphosate treatment (2.5 mg L −1 , 15 days) did not significantly alter the physical and chemical condition of the microcosm or the composition of the main species in the community, but metatranscriptomic analyses indicated that the transcriptions of some cyanobacteria were significantly influenced by glyphosate. The microbial community enhanced the gene expression in pathways related to translation, secondary metabolites biosynthesis, transport and catabolism to potentially withstand glyphosate contamination. In the low phosphorus (P) environment, a common cyanobacterium, Synechococcus , plays a special role by utilizing glyphosate as P source and thus reducing its toxicity to other microbes, such as Pseudanabaena . In general, addition of glyphosate in our artificial microcosms did not strongly affect the aquatic microbial community composition but did alter the community’s transcription levels, which might be potentially explained by that some microbes could alleviate glyphosate’s toxicity by utilizing glyphosate as a P source.
研究领域:
环境科学
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微生物学
·
生态学
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PubMed
高影响因子
危险品化学品经营许可证（带存储）