SENSORS AND ACTUATORS B-CHEMICAL
·
2021
·
IF 7.46
Yan Huang,Yinjing Shen,Sichen Li,Ruijie Zheng,Chengjian Zhang,Benxia Li,Kun Zhang
Nowadays, it is still a huge challenge to efficiently discriminate of analogous anionic sulfonate surfactants, which are noxious xenobiotics related to many safety concerns of environment and life. Recently, great advances in orthogonal detection have shown the great advantages of principal component analysis (PCA) to construct a comprehensive statistical method for sensing signals in recognizing more analytes with similar structures. Inspired by sensor arrays, we propose a new ‘one-element-two-channel’ protocol upon a dual-emission samarium macrocycle Sm - 2 o as the lab-on-a-molecule, containing two isolated emissions of macrocycle (443 nm) and Sm(III) (643 nm) emitters as two fluorescence channels. Herein, these targeted surfactants instruct original fluorescences of Sm - 2 o to generate diverse sensing signals which can finally convert into unique fingerprint patterns and distinguish four anionic surfactants (SDS, SDSO, SCI and AOS) from other ten ones, even their proportional concentrations. Significantly, this high-throughput discrimination is realized by different receptor-analyte interactions and the structure transformation of Sm - 2 o in diverse microenvironments formed in various types of surfactants. Furthermore, these sensing systems also show satisfactory discrimination and semiquantitation performances for mixtures of anionic surfactants, especially the SDS and SDBS, in real water sample, revealing the practicability of our lab-on-a-molecule probe. On the basis of the PCA method, this work provides a vital reference for the design and application of multianalyte chemosensors .
研究领域:
分析化学
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环境科学
·
生物传感
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DOI
高影响因子
Journal of Water Process Engineering
·
2026
·
IF 6.6
Cheng Ma,Ziyi Guo,Mushi Li,Wenjing Sang,Muzamil Ali Brohi,Dengxin Li
Emulsified rinsing wastewater from textile industry is difficult to treat due to its stable oil-in-water emulsion. To address the issues of high cost and suboptimal effluent quality in the flocculation-biotreatment process at a textile wastewater pretreatment station, this study systematically compared two improved schemes: enhanced pretreatment (demulsification-flocculation coupled with biotreatment) and enhanced biotreatment (carbon material enhanced anaerobic process). Key operational parameters were optimized through lab-scale experiments. Demulsifier E and biochar showed the best effect respectively. These parameters were validated in a 100-day, 1000 m 3 /d pilot-scale application. Two schemes both achieved better average effluent chemical oxygen demand (COD) than the original process. For comprehensive decision-making, an integrated life cycle assessment (LCA) combined analytic hierarchy process (AHP) model was developed, evaluating in economic, environmental, and technical effectiveness. LCA results indicated the biochar enhanced anaerobic process exhibited the lowest environmental impact, particularly in global warming potential (GWP). AHP weight revealed that technical effectiveness, especially COD removal efficiency, was the primary concern, resulting the selection on biochar enhanced anaerobic process. This study provides both a practical upgrade solution for industrial wastewater treatment plants and demonstrates the value of the LCA-AHP framework in guiding the green transformation of such processes.
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高影响因子
FOOD CHEMISTRY
·
2025
·
IF 9.8
Rubing Zou,Qianyi Yu,Zexiang Wang,Peiyu Yang,Ying Zhao,Yihua Liu,Yan Fu,Yirong Guo
Unexpected interferences from the food matrix pose challenges to achieving high-performance on-site monitoring of pesticide residues. In this study, we employed 3D printing technology to fabricate a miniaturized lab-on-a-chip (LOC) device for in-situ sample pretreatment. Serving as the analytical component, a lateral flow immunochromatographic strip was developed for thiamethoxam, a representative neonicotinoid insecticide. Results showed that the composite LOC device enabled on-site determination of thiamethoxam in 13 different food samples using a multi-step analysis approach. Similar to the buffer-based calibration curve (IC 50 : 0.11 ng·mL −1 ), the matrix-based calibration curves for celery (IC 50 : 0.15 ng·mL −1 ) and cucumber (IC 50 :0.10 ng·mL −1 ) samples exhibited ultrahigh sensitivities, with a total analysis time within 15 min. The average recovery rates were 87.2 % ~ 107.4 %, with relative standard deviations of 2.1 % ~ 7.6 % at the spiked levels of 1 and 5 ng·g −1 . Furthermore, this LOC device was applied to unknown food samples, achieving excellent accordance with LC-MS/MS confirmation.
研究领域:
分析化学
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食品安全
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环境科学
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DOI
PubMed
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2018
·
IF 6.578
Yao Wang,Zhi Wang,Jixiao Wang
Enhancing membrane flux, rejection, antimicrobial and chlorine resistance has been the focus of reverse osmosis membrane research. The permselectivity, chlorine resistance and antimicrobial properties of a polyamide (PA) membrane were improved by immobilization of self-synthesized amine functional hydantoin derivative poly(3-allyl-5,5-dimethylhydantoin- co -vinylamine) (P(ADMH- co -VAm)). The chlorine resistance and antimicrobial property of the modified membrane could be regenerated due to the reversible transition between hydantoin and N-halamine. The lab-scale virgin and modified membranes were systematically characterized, and their performances were evaluated and compared with some representative commercial membranes. The modified membrane showed similar permselectivity, but higher and regenerable chlorine resistance and antimicrobial property as compared with the commercial membrane e.g., BW30FR. Next, a pilot-scale 0.4-m wide continuous membrane production process was performed to fabricate membrane element. The permselectivity of the modified element was also improved. During the six “chlorination-sterilization” operation cycles, the element exhibited high antimicrobial property with small permselectivity changes. Thus, both the lab-scale and pilot-scale testing results demonstrated the improved performances of the modified membrane.
研究领域:
材料科学
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环境工程
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DOI
高影响因子
Journal of the Taiwan Institute of Chemical Engineers
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2025
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IF 6.3
Xiaoyuan Zhang,Qing Qin,Xuetong Zhai,Hongliang Guo,Song Han,Jo-Shu Chang,Duu-Jong Lee
Background Energy-efficient remediation technology for black and odorous water bodies in cold and salty areas is in high demand. This study experimentally investigated the performance of a novel integrated process at lab and pilot scales, in both batch and continuous-flow modes, to treat black and odorous lake water from Daqing City, China. Methods In 25-liter batch tests, relevant influence conditions were optimized. The 756-liter batch tests confirmed these results. Meanwhile, a continuous flow experiment was added to improve the removal rate of pollutants further. Significant findings In 25-liter batch tests maximum removal rates for COD, NH 4 + -N, TP, and TN were 78.6 %, 72.3 %, 79.1 %, and 76.3 %, respectively, using reed plants and carbon fiber grass with L 2 bacteria under optimal conditions (two cfb per floating-island unit, pH 8, DO of 4 mg/L, 25–30 °C, microbial enhancer of 0.75 g/flu). The 756-liter batch tests confirmed these results, achieving improved removal rates of 80.4 %, 75.1 %, 75.5 %, and 78.4 % over 30 days. Continuous-flow tests yielded maximum removal rates of 85.2 %, 89.5 %, 87.4 %, and 90.1 % at an 8-hour HRT, demonstrating superior performance under short retention times. The study revealed interactions with the key biological processes during remediation. The proposed costs for this method indicate high feasibility for field applications.
研究领域:
环境科学
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微生物学
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DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2022
·
IF 5.895
Kai-Ni Wei,Gui-Xian Song,Shu-Zhen Huang,Qing Tang,Jian-Hang Hu,Zhu Tao,Ying Huang
In order to prevent and control the effects of pesticide residues on human health and the ecological environment, the rapid, highly sensitive, and selective detection of multiple pesticide residues has become an urgent problem to be solved. Herein, a lab-on-a-molecule probe based on a host–guest complex (ThT@Q[8] probe) has been developed to simultaneously analyze multiple aromatic pesticides under single wavelength excitation, such as fuberidazole, thiabendazole, carbendazim, thidiazuron, and tricyclazole. The fluorescence titration spectra of the ThT@Q[8] probe with the five pesticides mentioned above showed that the fluorescence intensity exhibited a good linear correlation with the pesticide concentration and the limit of detection was as low as 10–7 M. Because the ThT@Q[8] probe exhibits diverse fluorescence color changes to the five pesticides studied under a 365 nm ultraviolet lamp, we fabricated a single probe used to detect multiple analytes in the RGB triple channel by extracting the RGB variations. Principal component analysis and linear discriminant analysis proved that the ThT@Q[8] probe can recognize and distinguish five pesticides and can be applied at different concentrations. In real samples, the ThT@Q[8] probe recognized and distinguished five pesticides in tap water and Huaxi River water. The 1H NMR spectra results proved that a charge-transfer complex of ThT and pesticides in the Q[8] cavity may be formed. Moreover, we selected a test strip as a carrier to detect pesticides. The results indicate it can be used to quickly and conveniently detect different pesticides due to the rapid color change. Besides, the ThT@Q[8] probe has good cell permeability and can be used to detect pesticide residues in living cells. This work has laid the foundation for the qualitative and quantitative multitarget detection of pesticide residues.
研究领域:
分析化学
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环境科学
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分子生物学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Jie Chen,Jinfeng Ling,Bo Sun,Jian Wang,Baoxue Zhou,Xiaohong Guan,Yuankui Sun
Bisulfite-activated permanganate (PM/BS) process has proven to be a promising method for trace organic contaminants (TrOCs) abatement. However, to our knowledge, most previous studies on PM/BS process were limited in synthetic water at lab-scale. Hence, the performance of TrOCs abatement by PM/BS process was investigated in real waters in this study, and for the first time, its feasibility as a pretreatment process was evaluated at pilot-scale. The lab-scale results indicated that almost all tested TrOCs could be completely removed from pure water, while their removal efficiencies varied widely from ∼20 % to ∼90 % in real waters. Correlation analysis suggested that TrOCs abatement decreased linearly with increasing concentration of dissolved organic matter (DOM) and halide ions in real waters. The TrOCs with electron-donating groups were more likely to be decomposed in PM/BS process. The PM/BS pretreatment produced MnO 2 and decreased the aromatic signal of the DOM, which enhanced the removal of DOM during subsequent coagulation-sedimentation processes. Comparing with ozonation, chlorination, and permanganate processes, PM/BS process showed some advantages in terms of TrOCs abatement and operating costs. Furthermore, the pilot-scale experiment confirmed that PM/BS process combined with traditional water treatment processes could achieve excellent TrOCs abatement (greater than 84%).
研究领域:
环境工程
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水处理技术
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化学工程
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DOI
PubMed
高影响因子
Scientific Reports
·
2014
·Vol. 4
·期 1
·1-9
·
IF 5.078
Jiang Jizhou,Ou-Yang Lei,Zhu Lihua,Zou Jing,Tang Heqing
Through in-situ reduction of silver nitrate without using any coupling-agent, a substrate for surface-enhanced Raman scattering (SERS) was prepared by coating silver on hollow buoyant silica microspheres as a lab on a bubble (LoB). The silver coated LoBs (LoBs@Ag) floated on surface of a solution could provide a very convenient platform for the detection of target molecules in the solution. The LoBs@Ag substrate not only immobilized well-distributed Ag nanoparticles on the surface LoBs, but excluded the interference of coupling agents. This yielded high-resolution SERS spectra with excellent reproducibility. The adsorption of crystal violet (CV) on the LoBs@Ag substrate was investigated by means of SERS combined with density functional theory (DFT) calculations. The LoBs@Ag substrate exhibited a remarkable Raman enhancement effect for CV with an enhancement factor of 6.9 × 10 8 and wide adaptability from dye, pesticide to bio-molecules. On the basis of this substrate, a simple and sensitive SERS method was proposed for the determination of trace organic pollutants or bio-molecules.
研究领域:
分析化学
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材料科学
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生物分析
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DOI
PubMed
高影响因子
FUEL
·
2021
·
IF 6.609
Hanzi Liu,Yi Zhang,Haiming Wang,Changfu You
Selective non-catalytic reduction of NOx (SNCR) with NH 3 is commonly used in industrial facilities like circulating fluidized bed (CFB) furnaces. However, the strongly temperature-dependent de-NOx feature confines its applications in a specific temperature range (900–1050 °C). Here, we report a new strategy on using Fe-Ni-W exchanged zeolite (0.5FNW-H) as a catalyst to extend the SNCR temperature window. In the CFB reactor, a significant NOx conversion improvement ranging from 14.1% to 80.9% was achieved at 700 to 850 °C by applying the developed catalyst. Catalyst dosage of 4500 h −1 (GHSV), a particle diameter of 0.1–0.3 mm, and NH 3 injection position at the dense-phase zone were found preferred for NOx reduction with the highest efficiency of ~85% at 700 °C. The physicochemical properties of the catalysts remained stable after the circulating reactions in the CFB reactor. The developed catalyst is particularly applicable for improving the SNCR performance when the thermal power plants are operated at low loads.
研究领域:
环境科学
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催化化学
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DOI
高影响因子
ACS Applied Nano Materials
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2022
·
IF 6.14
Zhidong Zheng,Meng Shi,Yu Xu,Shaojing Liu,Huiqing Zhong,Qian Shou,Jianlin Huang,Tianyang Luan,Zongbao Li,Xiaobo Xing
As a highly functional platform, lab-on-fiber (LOF) has exhibited amazing potential to be used in ultrasensitive surface-enhanced Raman spectroscopy (SERS) detection. However, the low detection efficiency and high cost of most SERS-based LOF platforms have severely limited their further applications in environmental monitoring, biomedicine, etc. Here, we report a reusable SERS-based LOF platform through a Au-coated optical fiber integrated into a patterned microfluidic chip. With the assistance of laser-induced thermophoresis, we successfully obtained rich “hot spots” on the Au-coated optical fiber by reversible accumulation of gold nanoparticles within 5 min. Experimental results indicate that it has a low detection limitation of 10–10 mol/L (M) for environmental pollutant molecules. Fortunately, with the dynamic and reversible accumulation of gold nanoparticles controlled by laser on/off, the platform shows excellent reversibility and stability under multiple detection–cleaning cycles, which are better than those of the LOF platform based on chemical modification and photochemical deposition. The thermophoresis-based LOF platform with the advantages of easy operation, miniaturization, and high reusability provides a cost-effective approach for SERS detection.
研究领域:
光学传感
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纳米技术
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分析化学
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环境科学
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生物医学工程
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DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2023
·
IF 8.4
Jia Wei,Wanjun Wang,Qiong Yu,Mingrui Zhang,Fengyu Xue,Beibei Fan,Tong Zhang,Yanpeng Gao,Juan Li,Xianying Meng,Bo Pang
Mpox (formerly referred as Monkeypox) outbreak has been declared a Public Health Emergency of International Concern. However, traditional polymerase chain reaction (PCR) diagnostic technology is not ideal for on-site applications. To conduct the sample-to-result Mpox viral particles detection outside the laboratories, we developed an easy-to-operate palm-size pouch, termed Mpox At-home Self-Test and point-of-caRe Pouch (MASTR Pouch). In this MASTR Pouch, the fast and accurate visualization was achieved by incorporating recombinase polymerase amplification (RPA) with clustered regularly interspaced short palindromic repeat (CRISPR)/Cas12a system. From viral particle lysis to naked eye readout, MASTR Pouch required only four simple steps to accomplish the analysis process within 35 min. Fifty-three Mpox pseudo-viral particles in exudate (10.6 particles/μL) were able to be detected. To verify the practicability, 104 mock Mpox clinical exudate specimens were tested. The clinical sensitivities were determined to be 91.7%− 95.8%. There was no false-positive result, validating the 100% clinical specificity. MASTR Pouch approaches the WHO's ASSURD criteria for point-of-care diagnostic, which will be beneficial for mitigating Mpox's global spread. The versatility potential of MASTR Pouch could further revolutionize infection diagnosis.
研究领域:
病毒学
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分子诊断
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公共卫生
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生物技术
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DOI
PubMed
高影响因子
JOURNAL OF APPLIED ENTOMOLOGY
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2025
·Vol. 149
·期 7
·1090-1104
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IF 2
Arushi Mahajan,Meena Devi,Pallvi Mehra,Amarjeet Kaur,Sanehdeep Kaur
Spodoptera litura (Fabricius) (Lepidoptera, Noctuidae), known for its ravenous feeding habits, is a polyphagous pest with a high reproductive rate, often developing resistance to most of the conventional insecticides, posing a substantial pest management challenge. Chlorantraniliprole (CTPR) is an anthranilic diamide insecticide, which is widely used against lepidopteran pests, including S. litura . Understanding the physiological and biochemical alterations associated with CTPR resistance is crucial for effective resistance management. Our research aimed to investigate the overall impact of CTPR on nutritional parameters, and biochemical and immunological responses in laboratory-selected susceptible (Unsel-Lab) and resistant (CTPR-Sel) S. litura populations. Results showed a reduction in nutritional parameters and digestive enzyme activity, with a more pronounced decline in the CTPR-Sel population. In contrast, detoxification enzyme activities (MFO, GST, EST, ACP and AKP), along with AChE, were significantly elevated, suggesting an adaptive response to CTPR exposure, with the CTPR-Sel population exhibiting a stronger detoxification capacity. Antioxidant enzyme assay indicated increased SOD activity but decreased CAT activity in both populations, reflecting oxidative stress. Immune response markers, including total haemocyte count, lysozyme and phenoloxidase activity, showed significant variations between the two populations, suggesting differential immune-physiological adaptations. These findings highlight the physiological trade-offs associated with CTPR resistance in S. litura and emphasise the necessity of integrated pest management strategies to mitigate resistance development.
研究领域:
昆虫学
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农药毒理学
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昆虫生理学
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化学生态学
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综合害虫管理
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高影响因子
危险品化学品经营许可证（带存储）