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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

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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

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A Rapid Visual Detection of Ascorbic Acid Through Morphology Transformation of Silver Triangular Nanoplates

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Journal of analysis and Testing 2021年第3期5卷 210-216页

作者： Chun Liu Qiwei Pang Tong Wu Wenjing Qi Wensheng Fu Yi Wang Chongqing Key Laboratory of Green Synthesis and Applications College of ChemistryChongqing Normal UniversityChongqing 401331China Key Lab of Process Analysis and Control of Sichuan Universities Yibin UniversitySichuan 644000China

A rapid and sensitive colorimetric detection of ascorbic acid(AA)through the morphology transformation of silver triangular nanoplates(Ag TNPs)is *** virtue of the redox reaction among silver nitrate and A A,the newly formed Ag atoms deposited on the surfaces of Ag ***,the morphology of Ag TNPs transforms from triangle to circle,resulting in a more than 160 nm blue shift of localized surface plasmon resonance absorption *** corresponding color of the solution converting from blue to yellow with the concentration of AA can be observed by naked eyes within 15 min.A linear relationship between the blue shift of absorption peak and the concentration of A A ranging from 0.2 to 6μM is obtained with a limit of detection(LOD)of 100 nM(3σ).Some potential species(e.g.,glucose,urea and various amino acids)coexisting in the system showed little or no *** proposed assay is successfully employed to determine the amount of A A in pharmaceutical products with recoveries from 96.9 to 106.5%and offers a sensitive,low-cost,rapid and simple assay of visual analysis of ascorbic acid.

关键词： Silver triangular nanoplates(Ag TNPs) Detection Ascorbic acid(AA,vitamin C) Morphology transformation Colorimetry

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Nickel-carbonate nanowire array： An efficient and durable electrocatalyst for water oxidation under nearly neutral conditions

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Frontiers of Chemical Science and Engineering 2018年第3期12卷 467-472页

作者： Yuyao Ji Min Ma Xuqiang Ji Xiaoli Xiong Xuping Sun College of Chemistry and Materials Science Sichuan Normal University Chengdu 610068 China College of Chemistry Sichuan University Chengdu 610064 China Key Lab of Process Analysis and Cont ol of Sichuan Universities Yibin University Yibin 644000 China

It is highly attractive but still remains a great challenge to develop an efficient electrocatalyst for oxygen evolution reaction under nearly neutral conditions. In this work, we report the transformation of Ni3S2 nanowire array on nickel foam into the amorphous nickel carbonate nanowire array on nickel foam （NiCO3/NF）. The resulting NiCO3/NF shows high electrocatalytic activity towards water oxidation and affords current density of 50 mA. cm-2 at overpotential of 395 mV in 1.0 mol·L^-1 KHCO3. Moreover, this NiCO3/NF is also durable with a long-term electrochemical durability of 60 h. This catalyst electrode achieves a high turnover frequency of 0.21 mol O2·s^-1 at the overpotential of 500 mV.

关键词： water oxidation NiCO3/NF nearly neutral conditions superior activity electocatalyst

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Single-Cu-atom anchoring on covalent organic framework as a wearable flexible electrochemical sensor for acetaminophen

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Microchemical Journal 2025年 214卷

作者： Liu, Zihan Xu, Yao Heng, Yuxin Liu, Fanghua Tan, Chao Wen, Guijiao Xu, Fujian He, Juan 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 Chengdu 610068 China Key Lab of Process Analysis and Control of Sichuan Universities Yibin University Sichuan Yibin 644000 China Analytical & Testing Center Sichuan University Sichuan Chengdu 610064 China School of Chemistry and Environment Southwest Minzu University Chengdu 610041 China

In this paper, a wearable flexible patch featuring a non-enzymatic electrochemical sensor based on Cu single-atom catalysts (SACs) anchored on bipyridine-covalent organic framework (COF) electrode was proposed for specific detection of acetaminophen (AP) in human sweat. The electrode modified material is Cu single atom catalytic material (Cu-TpBpy). The bifunctional TpBpy acts as a support for binding individual Cu atoms through abundant and well-organized N-N chelating sites, while simultaneously serving as an active host for specific recognition/adsorption of AP due to its porous structure and active N sites. The resulting Cu-TpBpy with atomically dispersed Cu sites demonstrated high electrochemical activity for AP, attributed to enhanced electron transfer efficiency and reduced binding and adsorption energies. Density functional theory calculations further reveal that the Cu single-atom anchoring on TpBpy provides superior adsorption of AP than TpBpy alone, resulting in lower binding energy, and higher selectivity and sensitivity. The wearable flexible patch, based on Cu-TpBpy, enabled real-time and accurate detection of AP in human sweat and achieved a linear range of 0.3 µM-5 µM and a limit of detection of 13 nM, with satisfied stability and repeatability. This work developed a highly sensitive non-enzymatic sensing method for wearable flexible patches. © 2025

关键词： Acetaminophen COF Flexible patch Non-enzymatic sensor SACs

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Rapid Determination of CODcr and Application in Water Purification

Rapid Determination of CODcr and Application in Water Purifi...

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2017 International Conference on Energy, Power and Environmental Engineering(ICEPEE2017)

作者： Yong-hong SHUI Xiao-dong LIU Hong-mei MAO Chao TAN Chengdu Textile College Key Lab of Process Analysis and Control of Sichuan Universities

Rapid COD determination method using spectrophotometry with high-temperature-pressure digestion（SHTP） was designed because COD determination by classic potassium dichromate reflux method（CFM, GB/T 11914-89） had some drawbacks, such unable to analysis in batches, high cost, while had some adverse effect on the environment. SHTP was applied to the study the wastewater quality change of constructed welands for domestic sewage treatment. The results showed that there was a positive correlation between CFM and SHTP（r=0.8801）. The linear regression equation between the two methods was COD=1.2198 COD-4.5745, and the significant test shows no significant difference between the two methods（P=0.07>0.05）. Therefore,the study provided a new and fast method to batch monitoring COD of the sewage water purified.

关键词： Chemical oxygen demand Rapid determination Spectrophotometry Water purification

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

Design and implementation of temperature and humidity monito...

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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

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

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

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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

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

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

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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

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

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

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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

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