SENSORS AND ACTUATORS B-CHEMICAL
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2022
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IF 9.221
Yanhui Zhong,Wanting Huang,Chuang Zhang,Runkun Zhang,Yufei Hu,Xiaohua Xiao,Gongke Li
The addition of methyl tert-butyl ether (MTBE) can increase the octane number of gasoline to improve the combustion efficiency of gasoline. Because of the health effects on the population exposed to MTBE, limiting the addition of MTBE in gasoline will be thefuture development tendency. Here, a cyclic cataluminescence (CCTL) sensor array was utilized to monitor the addition of MTBE in gasoline. CCTL sensor obtained multistage signals ( I n ) on a single catalyst, which realized the function of the sensor array. MTBE trigger-CCTL reaction on 4 kinds of catalysts was investigated. Three brands (No. 92, 95, and 98) of gasoline triggered the CCTL reaction to obtain I n which conforms to the exponential decay equation (EDE). CCTL sensor was used to detect the volume ratio of MTBE to gasoline according to A and τ -values. The I n was applied to normalize and distinguish gasoline through linear discriminate analysis (LDA) and hierarchical cluster analysis (HCA). The τ -values of gasoline on 4 catalysts generated a digital code to differentiate each gasoline. CCTL virtual sensor arrays own the sensor array function and provide a promising technology for gasoline quality analysis.
研究领域:
化学传感
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环境科学
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产品关联
DOI
高影响因子
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
·
2023
·
IF 4.2
Hujian Wu,Qi Wang,Xiaoxin Zhang,Tao Wang
Alkyl anthraquinones play a crucial role as chemical raw materials in the production of hydrogen peroxide as well as intermediates for the synthesis of drugs and dyes. This study focuses on investigating the oxidation reaction of 2,6-di-tert-butylanthracene with hydrogen peroxide, employing Bronsted acidic ionic liquids as catalysts. The optimization of both the anion and cation components within the Brønsted acidic ionic iquids was carried out, revealing that bis(3-propanesulfonic acid-1-imidazole)propylidene bisulfate ([2(Im-PS)-C3][2HSO4]) exhibited the most effective catalytic performance. Furthermore, the Brønsted acidic ionic liquids demonstrated cyclic catalytic activity during the oxidation reaction. Successful preparation of 2,6-di-tert-butylanthraquinone was achieved with a remarkable yield of up to 92%. The recyclability of the ionic liquid suggests that this study will contribute to technical improvements in the original method while concurrently reducing the cost associated with the synthesis of alkyl anthraquinones via the oxidation method.
研究领域:
有机化学
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催化合成
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产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2021
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IF 13.273
Xiaohai Yan,Yuning Zhao,Gengan Du,Qi Guo,Hong Chen,Qian He,Qiannan Zhao,Huanfeng Ye,Jianlong Wang,Yahong Yuan,Tianli Yue
Tools to detect low molecular weight mycotoxin patulin (PAT) are urgently needed because of its harm to human health. Here, we report a simple, effective, and sensitive fluorescent aptasensor based on sulfur quantum dots encapsulated in MOF-5-NH 2 ( [email protected] 2 ) and self-cycling catalyzed hairpin assembly (scCHA) for the detection of PAT in apple juice. The [email protected] 2 synthesized by a “bottle-around-ship” solvothermal method works as a fluorescent probe and offers enhanced fluorescence intensity and good water-solubility versus MOF-5-NH 2 due to the encapsulation of water-soluble SQDs . Meanwhile, the scCHA designed by the two DNA hairpins is initiated after the formation of PAT/aptamer, which further recycles PAT to effectively capture multiple fluorescence probes ( [email protected] 2 ) and amplify the detection signal. Attributed to the synergistic effect between the strong fluorescence intensity of [email protected] 2 and the efficient PAT utilization of scCHA, the fluorescent aptasensor exhibits high sensitivity with detection limits as low as 0.753 pg/mL. The system has satisfactory specificity, anti-interference, and reproducibility (RSDs of intra-assay and inter-assay were 3.24% and 8.60%, respectively). The recoveries in apple juice were between 89.03% and 107.67%, which were with good consistency versus high-performance liquid chromatography (HPLC). These data collectively show that the developed fluorescent aptasensor has a good practical application value.
研究领域:
分析化学
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纳米技术
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食品安全
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产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2021
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IF 9.229
Xionghui Ma,Chaohai Pang,Shuhuai Li,Jianping Li,Mingyue Wang,Yuhao Xiong,Linjing Su,Jinhui Luo,Zhi Xu,Liyun Lin
Metal–organic frameworks (MOFs) prepared via typical procedures tend to exhibit issues like poor water stability and poor conductivity, which hinder their application in electrochemical sensing. Herein, we report a strategy for the preparation of mixed-valence ultrafine one-dimensional Ce-MOF nanowires based on a micelle-assisted biomimetic route and subsequent investigation into their growth mechanism. The prepared mixed-valence Ce-MOF nanowires exhibited a typical size of ∼50 nm and were found to present good water stability and high conductivity. On this basis, we examined the introduction of these nanowires into the luminol hydrogen peroxide luminescence system and proposed a novel dual-route self-circulating electrochemiluminescence (ECL) catalytic amplification mechanism. Finally, in combination with molecular imprinting, a MOF-based ECL sensor was developed for the detection of trace amounts of imidacloprid in plant-derived foods. This sensor exhibited a linearity of 2–120 nM and a detection limit of 0.34 nM. Thus, we proposed not only a novel route to MOF downsizing but also a facile and robust methodology for the design of a MOF-based molecular imprinting ECL sensor.
研究领域:
材料科学
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分析化学
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纳米技术
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环境科学
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产品关联
DOI
PubMed
高影响因子
Science China-Chemistry
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2020
·Vol. 63
·期 7
·924-935
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IF 6.356
Yuan Haifeng,Zhao Yan,Yang Chan,Zhang Cheng,Yang Yue,Meng Hongmin,Huan Shuangyan,Song Guosheng,Zhang Xiaobing
For chemotherapy, drug delivery systems often suffer from the inefficient drug loading capability, which usually cause systems toxicity and extra burden to excrete carrier itself. Moreover, the cancer therapeutic efficacy is also greatly limited by the specificity of tumor microenvironment for reactive oxygen species (ROS) based cancer therapeutic strategy ( e.g. , chemodynamic therapy). Herein, we have developed metal-drug coordination nanoplatform that can not only be responsive to tumor microenvironment but also modulate it, so as to achieve efficient treatment of cancer. Excitingly, by employing small molecule drug (6-thioguanine) as ligand copper ions, we achieve a high drug loading rate (60.1%) and 100% of utilization of metal-drug coordination nanoplatform (Cu-TG). Interestingly, Cu-TG possessed high-efficiently horseradish peroxidase-like, glutathione peroxidase-like and catalase-like activity. Under the tumor microenvironment, Cu-TG exhibited the self-reinforcing circular catalysis that is able to amplify the cellular oxidative stress, inducing notable cancer cellular apoptosis. Moreover, Cu-TG could be activated with glutathione (GSH) and facilitated for GSH triggered 6-TG release, higher selective therapeutic effect toward cancer cells, and GSH activated T 1 weight-magnetic resonance imaging. Based on the above properties, Cu-TG exhibited magnetic resonance imaging (MRI) guiding, efficient and synergistic combination of chemodynamic and chemotherapy with self-reinforcing therapeutic outcomes in vivo .
研究领域:
癌症治疗
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药物递送系统
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纳米技术
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磁共振成像
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生物医学工程
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化学生物学
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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）