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Amino-Functionalized Ce-Mof Synthesized by Micro-Plasma: As a Dual-Mode Colorimetric/Fluorescence Sensor for On-Site analysis of Doxycycline

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SSRN 2025年

作者： Xia, Yi Yang, Lin Hu, Miao Zhang, Jun Tan, Chao Yan, Yiting Yang, Congling Xiao, Yaoyu Jiang, Zhi-Chao Huang, Ke Xiong, Xiaoli Jiang, Xue Key Laboratory of Land Resources Evaluation and Monitoring in Southwest Ministry of Education College of Chemistry and Materials Science Sichuan Normal University Chengdu610068 China Key Lab of Process Analysis and Control of Sichuan Universities Yibin University Sichuan Yibin644000 China School of Mechanical Engineering Sichuan University Chengdu610065 China State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu610065 China

The improper and excessive use of doxycycline (DOX) poses a significant risk to public health through food residues and soil/water contamination, however on-site and accurately distinguish DOX from complex substrates (especially other tetracycline antibiotics which with similar molecular structures) remains a significant challenge for field analysis. In this work, an amino-functionalized cerium-based metal-organic framework (NH2-Ce-MOF) with high peroxidase activity was one-step synthesized by dielectric barrier discharge microplasma. The DOX adsorbs more readily on the (001) crystal faces of NH2-Ce-MOF compared with other tetracyclines, thus facilitating its distinct recognition. Based on the inward filtration effect (IFE) and selective adsorption between NH2-Ce-MOF and TMB, a high effective dual-mode colorimetric/fluorescent DOX sensor was developed and applied for on-site analyzing really pharmaceutical and livestock sewage samples by smartphone assisted visualization, with a concentration range of 0.1-150 μM and a low limit of detection (LOD) of 79 nM with recoveries ranging from 96.56%-107.22%. © 2025, The Authors. All rights reserved.

关键词： Dielectric barrier discharge

One Pot Facile Visible-Light Promoted Synthesis of Quinazolinones Via Csp3-H Oxidation in Aqueous Media

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SSRN 2023年

作者： Chen, Taiping Yang, Huan Li, Shuangjun Xie, Jiangping Wei, Lingyu Yang, Li Key Lab of Process Analysis and Control of Sichuan Universities Yibin University Sichuan Yibin644000 China Party Working Committee of Yibin Campus Xihua University Sichuan Yibin644000 China College of Science Xihua University Sichuan Chengdu610039 China

The utilization of biocompatible catalysts for the synthesis of biologically significant molecules in aqueous environments represents a pivotal and challenging aspect within the realm of green and sustainable chemistry. Herein, a KI-mediated Csp3-H oxidation reaction to synthesis heterogeneously of quinazolinones is reported in this study. Alcohol-oxidized aldehydes attack amides and cyclize to obtain various quinazolinones efficiently only under sunlight, in aqueous media. The utilization of solar energy significantly reduces experimental costs and minimizes the occurrence of toxic effects. This approach proceeded smoothly to afford quniazolinones in high to excellent yields with a wide substrate scope © 2023, The Authors. All rights reserved.

关键词： Synthesis (chemical)

Fabrication of Porous Hematite Nanoparticles by Recycling of Waste Ferrous Sulfate with Microwave-Assisted Reduction Technique

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SSRN 2023年

作者： Ren, Genkuan Zhang, Zhengan Wang, Xinlong Yang, Xiushan Zhu, Denglei Chen, Aijun Xin, Luo He, Xuemei Key Lab of Process Analysis and Control Sichuan Universities Yibin University Yibin64000 China School of Chemical Engineering Sichuan University Chengdu610065 China Department of Materials and Chemical Engineering Yibin College Yibin64000 China

Massive ferrous sulfate heptahydrate put aside without being utilized not merely resulted in serious environment pollution, but also caused resource waste in China. To alleviate environmental pressures and increase resource utilization, a novel solution is proposed to fabricate porous hematite nanoparticles using waste ferrous sulfate as the starting material via microwave-assisted reduction technique in nitrogen protection. Physicochemical properties of the synthesized porous α-HNPs were separately analyzed by X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), Raman spectroscopy (RM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Brunauer–Emmett–Teller (BET) method. Fabrication of α-HNPs with spherical-like microscopy was certified by using XRD, FTIR, RM and XPS. SEM and TEM images indicated that the porous α-HNPs with the size of 35~75 nm were formed by microwave-assisted reduction technique. Special surface area, pore volume and pore size of α-HNPs were evaluated to be ca. 20.999 m2/g, ca. 0.111 cm3/g and ca. 0.892 nm. The novel synthesis technique of α-HNPs provides an effective way for utilizing ferrous sulfate heptahydrate from titanium dioxide production and easing environmental pressures, which is in line with the idea of recycling economy and meets the requirements for cleaner utilization. © 2023, The Authors. All rights reserved.

关键词： Sulfur compounds

Formation of Hematite Nanoparticles By Recycling Waste Ferrous Sulfate Using Microwave-Assisted Reduction Technology

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SSRN 2023年

作者： He, Xuemei Zhang, Min Wang, Xinlong Yang, Xiushan Zhu, Denglei Zhang, Zhengan Ren, Genkuan Chen, Aijun Key Lab of Process Analysis and Control of Sichuan Universities Yibin University Yibin64000 China International Institute of Applied Technology Yibin University Yibin64000 China Department of Materials and Chemical Engineering Yibin University Yibin64000 China Chemical Science and Engineering College Sichuan University Chengdu610065 China Sichuan University China Yibin University China

Massive waste ferrous sulfate heptahydrate without being properly treated not only caused serious environment pollution but also enormous resource waste. To relieve environmental pressures and enhance resource utilization, a novel solution is proposed to fabricate hematite nanoparticles (α-HNPs) using waste ferrous sulfate as raw material by microwave- assisted reduction technology under nitrogen protection. Physicochemical properties of the synthesized α-HNPs were investigated by X-ray diffraction (XRD), Fourier transform infrared spectrum (FTIR), Raman spectroscopy (RM), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and Brunauer–Emmett–Teller (BET) method. The obtained conditions for fabrication of α-HNPs are at 550 ℃ for 6 min at the ratio of 14:1 (waste ferrous sulfate /pyrite). Fabrication of α-HNPs with spherical-like shape was analyzed by using XRD, FTIR, RM and XPS. Results indicated that the α-HNPs with the mean particle diameter of 45 nm were obtained by microwave-assisted reduction technique. Special surface area, pore volume and pore size of α-HNPs were evaluated to be ca. 20.999 m2/g, ca. 0.111 cm3/g and ca. 0.892 nm. The novel synthesis technique of α-HNPs provides an effective way for utilizing waste ferrous sulfate from titanium dioxide production and easing environmental pressures, which is in line with the idea of recycling economy and meets the requirements for cleaner utilization. © 2023, The Authors. All rights reserved.

关键词： Sulfur compounds

Design and implementation of temperature and humidity monitoring system for small cold storage of fruit and vegetable based on Arduino 4

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Design and implementation of temperature and humidity monito...

2020 4th International Conference on Electrical, Mechanical and Computer Engineering, ICEMCE 2020

作者： Tang, Xiuying Tan, Chao Chen, Aibin Li, Zhenghong Shuai, Renzheng College of Mechanical and Electrical Engineering Yunnan Agricultural University Kunming China Key Lab of Process Analysis and control of Sicuan Universities Yibin University Yibin China

At present, the utilization rate of small cold storage for fruit and vegetable in Yunnan is low, and it is necessary to carry out regional management of cold storage in order to save energy and improve the utilization rate. Because different fruits and vegetables need different refrigeration temperatures, so real-time temperature and humidity monitoring is particularly important. For meeting this requirement, this paper designs an arduino-based temperature and humidity monitoring system for small cold storage of fruit and vegetable. The system mainly includes hardware and software parts. Handware component includes Arduino Mega2560, ESP8266, Zigbee, DHT11 temperature and humidity sensor, and OLED display and the software component includes the Arduino IDE, UartAssist serial debugging assistant, Lighting. Blinker. Finally, the whole system is tested, and the test results show that the system has the characteristics of remote viewing, high measuring accuracy and convenient use, and the system could meet the needs of temperature and humidity management for small cold storage. © 2020 Journal of Physics: Conference Series.

关键词： Cold storage

Targeted modulation of dual-metal ion homeostasis to induce ER stress and cuproptosis for synergistic breast tumor suppression

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Chemical Engineering Journal 2025年 515卷

作者： Zhang, Xiaoxian Zhang, Xuequan Zhu, Jiahui Li, Tinghua Yang, Lianyi Lei, Lei Wu, Fang He, Bin Cao, Jun National Engineering Research Center for Biomaterials College of Biomedical Engineering Sichuan University Chengdu610065 China Key Lab of Process Analysis and Control of Sichuan Universities Faculty of Materials and Chemical Engineering Yibin University Yibin644000 China

Targeted modulation of metal ion homeostasis in tumor cells has emerged as a promising method for cancer therapy. However, the coordination efficiency and stability of different metal ions posed significant challenges for current multi-metal ions delivery systems. In this study, we presented an innovative strategy that utilized a single-metal ion nanoregulator capable of precisely modulating intracellular dual-metal ion homeostasis. This nanoregulator induced endoplasmic reticulum (ER) stress and cuproptosis, which worked synergistically to inhibit tumor growth. Specifically, a calcium-selective chelator, BAPTA (BA), formed a metal coordination complex with copper ions (Cu2+), which remained stable in the physiological environment but disassembled upon internalized by tumor cells. Once inside, the released BA selectively chelated intracellular calcium ions (Ca2+), depleting ER Ca2+ stores and triggering ER stress. This stress activated the PERK/p-eIF2α/ATF4/CHOP apoptotic pathway, leading to tumor cell apoptosis. Meanwhile, Cu2+ induced cuproptosis and was reduced to Cu+ in the cytosol, where it consumed hydrogen peroxide and generated cytotoxic hydroxyl radicals. These radicals induced oxidative stress, which, combined with glutathione depletion, further amplified ER stress and promoted tumor cell apoptosis. Both in vitro and in vivo experiments exhibited that the nanoregulator effectively suppressed tumor growth through apoptosis and cuproptosis pathways, with favorable biocompatibility. This study highlighted the synergistic roles of copper and calcium ions in tumor therapy and introduced a novel strategy for modulating intracellular dual-metal ion homeostasis, offering more efficient and low toxicity anti-cancer treatments. © 2025 Elsevier B.V.

关键词： Stress analysis

Improvement of Hot Air Drying on Quality of Xiaocaoba Gastrodia Elata in China 9th

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Improvement of Hot Air Drying on Quality of Xiaocaoba Gastro...

9th International Workshop of Advanced Manufacturing and Automation, IWAMA 2019

作者： Tang, Xiuying Tan, Chao Cheng, Bin Leng, Xuemei Feng, Xiangcai Luo, Yinhua College of Mechanical and Electrical Engineering Yunnan Agricultural University Kunming China Key Lab of Process Analysis and Control of Sichuan Universities Yibin University Yuban China College of Mechanics and Transportation Southwest Forestry University Kunming China

ISBN: (纸本)9789811523403

As a perennial herb, gastrodia elata is distributed in most parts of China. Its tuber is a valuable Chinese herbal medicine, and controlling its dryness is the most critical factor to ensure the quality of storing gastrodia elata. This paper takes Gastrodia tuber drying as the research object, and attempts to improve the local processing method which is hot air drying by coal heated. Our team use electricity instead of coal as the energy for hot air drying and takes 50 °C for drying under constant temperature. Experimental results show the appearance and the polysaccharide content of gastrodia elata are not improved, however, that the processing time has been reduced by one third, and the gastrodin content in boiled gastrodia elata is significantly higher compared to local drying method. © Springer Nature Singapore Pte Ltd 2020.

关键词： Drying

Study on quality influence of hot air drying and heat pump drying of Xiaocaoba Gastrodia elata 4

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Study on quality influence of hot air drying and heat pump d...

2020 4th International Conference on Electrical, Mechanical and Computer Engineering, ICEMCE 2020

作者： Cheng, Bin Tan, Chao Tang, Xiuying Chu, Zheyu Min, Jiabao Luo, Yinghua College of Mechanics and Transportation Southwest Forestry University Kunming China Key Lab of Process Analysis and Control of Sicuan Universities Yibin University Yibin China College of Mechanical and Electrical Engineering Yunnan Agricultural University Kunming China

This paper takes fresh gastrodia elata of Xiaocaoba as the research object. After the samples are steamed, two processing methods which are hot air drying and heat pump drying are used respectively. The drying temperature is set at 50 degrees for both methods. The results show that different weight gastrodia elata is suitable for different drying methods. The gastrodia elata of 70-105 grams is suitable dried by the hot air drying, while the gastrodia elata of 105-140 grams is better dried by the hot pump drying. The two drying methods had no effect on polysaccharides of samples. © 2020 Institute of Physics Publishing. All rights reserved.

关键词： Drying

Safety Monitoring System Design of Cold Storage Based on Single Chip Microcomputer 2

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Safety Monitoring System Design of Cold Storage Based on Sin...

2020 2nd International Conference on Computer Modeling, Simulation and Algorithm, CMSA 2020

作者： Chu, Zheyu Tan, Chao Tang, Xiuying Cheng, Bin College of Mechanical and Electrical Engineering Yunnan Agricultural University Kunming China Key Lab of Process Analysis and Control of Sicuan Universities Yibin University Yibin China College of Mechanics and Transportation Southwest Forestry University Kunming China

In order to solve the rising labor cost of cold storage management in China, and to improve the safety factor of cold storage, this paper designs a simple cold storage safety monitoring system. It is mainly to reflect the real-time monitoring information in the cold storage to the central background for unified processing, which not only reduces the harmful operations in the cold storage to save labor costs, but also improves the safety factor in the cold storage to reduce property losses. The monitoring system is fully automatic, which greatly reduces the staff's effort in cold storage management. © Published under licence by IOP Publishing Ltd.

关键词： Wages