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Modulating carrier density of the(Ag)_(x)(MoO_(3))_(y)system to enhance SERS:Localized surface plasmon resonance contribution

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Journal of Materiomics 2023年第2期9卷 387-394页

作者： Lin Zhu Zhu Mao Peng Li menglei xu Zhen Meng Lei Chen Bing Zhao Stake Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchun130012China School of Chemistry and Life Science Advanced Institute of Materials ScienceChangchun University of Technology Changchun130012China Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal UniversityChangchun130103China

Semiconductors typically exhibit long-wavelength LSPR absorption in the infrared region due to lower carrier *** the carrier density of semiconductors and blue-shifting their LSPR absorption to the visible and near-infrared region has always been a great ***,we discussed how the controllable carrier of(Ag)x(MoO_(3))y composite influences the LSPR based on SERS test and UVeViseNIR absorption *** were surprised to find that the LSPR absorption wavelength can be easily tuned from 950 to 735 nm by changing the sputtering power of MoO_(3)of the(Ag)x(MoO_(3))_(y)*** shows that LSPR can be precisely adjusted by increasing the semiconductor content and even the carrier *** addition,the carrier density was measured by Hall effect to investigate the SERS intensity change caused by electromagnetic(EM)enhancement,and obtain the relationship between the *** findings of this work provide an idea for tunable LSPR and the research of EM contributions to SERS.

关键词： Carrier density Localized surface plasmon resonance Semiconductor Electromagnetic Surface-enhanced Raman scattering

Genistein and daidzein reduced chlorpyrifos induced damage in PC12 cell

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Oil Crop Science 2020年第1期5卷 1-5页

作者： Yu Gao Jiajia xu menglei xu Sunsen Shi Jinfeng Xiong College of Plant Protection Jilin Agricultural UniversityChangchunChina College of Food Science and Engineering/State Key Laboratory of Supramolecular Structure and Materials Jilin UniversityChangchunChina Changchun Institute of Biological Products ChangchunChina

The present study preliminarily evaluated neurotoxicity injuries induced by chlorpyrifos in PC12 cell,which were used as a model for nervous cell *** cultured PC12 cell,application of soy isoflavones(genistein,daidzein,monomer and mixture)significantly reduced chlorpyrifos induced toxicity,a widely used pesticide,and resulted in a better cell survival *** with isoflavones reduced malondialdehyde content,reactive oxygengeneration and acetylcholine level in medium,and maintained mitochondrial membrane potential *** enhanced endogenous antioxidant system in PC12 cell with an increasing in superoxide dismutase perunit *** reduced acetylcholine content in the *** and genistein showed different effects,and their combined effect were greater than *** conclusion,soy isoflavones as an antioxidant and neuroprotectant,enhanced choline metabolism,which effectively mitigated disadvantageous influence of PC12 cell caused by chlorpyrifos.

关键词： Chlorpyrifos Soy isoflavone Genistein Daidzein PC12 cell Cytotoxicity

“大食物观”指导下的“食品安全学”课程改革思考

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食品工业 2024年第2期45卷 253-255页

作者：徐梦蕾袁媛张婷金蕊马爽叶海青吉林大学食品科学与工程学院长春130062

“食品安全学”是高校食品相关专业的一门理论和应用兼备的专业教育课程,属于核心专业课程。在“大食物观”政策指导下,针对“食品安全学”课程特点,从教学理念、教学目标、教学内容、教学方法、考核方式6个方面对该课程进行教学改革与... 详细信息

“食品安全学”是高校食品相关专业的一门理论和应用兼备的专业教育课程,属于核心专业课程。在“大食物观”政策指导下,针对“食品安全学”课程特点,从教学理念、教学目标、教学内容、教学方法、考核方式6个方面对该课程进行教学改革与探索,旨在调动学生学习主动性,拓宽学生视野,提高学生运用食品安全学的基本原理分析和解决实际问题的综合能力,提高理论和实践教学效果,提升食品科学类专业人才培养质量。

关键词：大食物观食品安全课程思政教学改革工程教育认证专业

特殊医学用途全营养配方食品含片剂型研发技术展望

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食品工业 2024年第6期45卷 225-229页

作者：程远娟赵晓燕孙嘉张力王莹莹徐梦蕾吉林大学白求恩第二医院长春130000 吉林大学护理学院长春130000 吉林大学食品科学与工程学院长春130062

特殊医学用途配方食品作为一种营养补充途径,为患者提供有针对性的营养支持,是进行临床营养支持的一种有效途径。市面上的特殊医学用途配方食品的主要剂型为粉末及液态,含片类剂型相对缺乏。含片类制剂具有剂量准确、质量稳定、快速溶... 详细信息

特殊医学用途配方食品作为一种营养补充途径,为患者提供有针对性的营养支持,是进行临床营养支持的一种有效途径。市面上的特殊医学用途配方食品的主要剂型为粉末及液态,含片类剂型相对缺乏。含片类制剂具有剂量准确、质量稳定、快速溶解和吸收、服用方便、提高某些药物的稳定性和生物利用度,从而增强治疗效果、便于识别且生产成本相对低廉等优点。同时含片剂型也存在一定问题,如药物的光敏性、氧化性或水解性、制造和包装含片剂型可能需要特殊的设备和技术,以确保产品的质量和一致性、选择合适的包装材料和条件以确保药物的稳定性等。报告特殊医学用途配方食品含片剂型的技术现状、产品特点以及存在问题、未来发展等,为我国特殊医学用途全营养配方食品含片剂型的发展提供理论依据。

关键词：特殊医学用途配方食品含片剂型展望研发技术

The in vitro digestion fates of diacylglycerol under different intestinal conditions:a potential lipid source for lipid indigestion patients

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Food Science and Human Wellness 2024年第2期13卷 1079-1092页

作者： Qingqing xu Weifei Wang Dongxiao Sun-Waterhouse Qian Zou menglei Yan xuan Liu Dongming Lan Yonghua Wang School of Food Science and Engineering South China University of TechnologyGuangzhou 510640China Sericultural and Agri-Food Research Institute Guangdong Academy of Agricultural SciencesGuangzhou 510610China School of Chemical Sciences The University of AucklandPrivate Bag 92019New Zealand Guangdong Youmei Institute of Intelligent Bio-manufacturing Co. Ltd.Foshan 528200China

The in vitro digestion models mimicking the gastrointestinal(GI)tract of general population and lipid indigestion patients(with lower levels of bile salts or pancreatic lipase)were selected to investigate whether diacylglycerols(DAGs)are potential good lipid sources for these *** oil-based DAG(LD)and linseed oil(LT)were ***-based emulsion((83.74±1.23)%)had higher lipolysis degree than LT-based emulsion((74.47±1.16)%)when monitoring the GI tract of normal population as previously *** conditions seriously decreased the digestive degree of LT-based emulsion((40.23±2.48)%-(66.50±3.70)%)while showed less influence on LD-based emulsion((64.18±2.41)%-(81.85±3.45)%).As opposed to LT-based emulsion,LD-based emulsion exhibited preference for releasing unsaturated fatty acids(especially oleic acid andα-linolenic acid)due to their different glycerolipid ***-based emulsion showed potential for providing lipids and nutrients(including essential fatty acids)for lipid indigestion patients.

关键词： Diacylglycerol In vitro digestion Lipolysis level Cholestatic Exocrine pancreatic insufficiency

Current research on soybean pest management in China

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Oil Crop Science 2018年第4期3卷 215-227页

作者： Yu Gao Shusen Shi menglei xu Juan Cui College of Plant Protection Jilin Agricultural University/Ministry of Agriculture (Jilin) Innovation Center of Soybean Region Technology State Key Laboratory of Supramolecular Structure and Materials Jilin University

Pest is one of the important factors affecting soybean yield and quality. Until now, 404 species on soybean have been known based on literature review and a large scale survey. More than 20 key pests occur every year and are causing serious damage. In 3 different ecoregions(Northern ecoregion, Huang-Huai-Hai ecoregion and Central south ecoregion), pests occurrence and damage styles show a variety of regional characteristics. Soybean pests occurrence from north to south were shown as follow: from large pests to small pests, from chewing pests to sucking pests, from low reproductive rate and less generation pests to high reproductive rate and more generation pests. Soybean pest management is mainly based on resistant breeding, combining with monitoring, plant quarantine, cultural, biological, physical, mechanical and chemical controls in China. Although pesticides play an important role in practice, the absence of reasonable use has threatened sustainability of China's soybean production. Soybean integrated pest management is not the only strategy, and it still needs improvement and development, but it's the best alternative for pest control. It can be expected that integrated pest management will remain as the main strategy for soybean pest control in future. Further innovation of green prevention and control technology will also become a focus of future research in view of new pest problems brought about by crop restructuring, agricultural system change and global climate change. Integration of above technologies will reduce the harm of pests and production costs as well as improving soybean production capacity. In this review, research progress of Chinese soybean pest and its management was summarized and some suggestions were provided to adapt for soybean pest management under current situation.

关键词： soybean pest management biological control pesticide

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离子预腌制技术对贮藏期卤蛋品质的提升作用

食品研究与开发 2024年第20期45卷 108-113,124页

作者：刘静波韩璐吕思雯 Metta Cita Andriani 曹梦瑶袁苓茹徐梦蕾于一丁张婷赵颂宁吉林大学食品科学与工程学院吉林省省营养与功能食品重点实验室吉林长春130062

为解决卤蛋食品在贮藏期间口感变硬、质构降低等问题,应用离子预腌制工艺技术提高产品在贮藏期的品质价值。以持水性、质构、色度、pH值和感官评价为指标,对浸泡后的卤蛋及存放期间卤蛋品质进行评价,从而筛选出能够提升贮藏期卤蛋品质... 详细信息

为解决卤蛋食品在贮藏期间口感变硬、质构降低等问题,应用离子预腌制工艺技术提高产品在贮藏期的品质价值。以持水性、质构、色度、pH值和感官评价为指标,对浸泡后的卤蛋及存放期间卤蛋品质进行评价,从而筛选出能够提升贮藏期卤蛋品质的离子。结果表明,在经48 h离子预腌制处理后,添加氯化钙预腌制的蛋清贮藏期内持水性增加、咀嚼性显著降低,且氯化钙显著改善卤蛋在贮藏期内蛋黄不黄、蛋清颜色变深以及减缓pH值下降、提高卤蛋贮藏期感官特性等问题。离子预腌制处理在卤蛋质构特性提升及色度保持方面具有一定的改善作用。其中,氯化钙在持水性、色度以及感官特性方面优于其他离子。相较于对照组,氯化钙组能够显著提升咀嚼性、减缓pH值下降速度、减缓细菌滋生。该研究可有效解决卤蛋在贮藏期蛋黄不黄、质构变硬的现象。

关键词：离子预腌制技术贮藏期卤蛋品质提升

飞燕式钢管混凝土系杆拱桥静载试验研究——以吉安大桥主桥为例

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工程技术研究 2023年第7期8卷 5-8页

作者：许梦雷上海同丰工程咨询有限公司上海201900

吉安大桥主桥为飞燕式钢管混凝土系杆拱桥,文章对该桥进行静载试验,介绍了试验工况及测点布置,同时基于结构有限元软件全桥仿真模拟分析,将试验实测数据与理论数据及规范值的进行对比分析,从而判断该桥在试验荷载作用下的实际工作状态... 详细信息

吉安大桥主桥为飞燕式钢管混凝土系杆拱桥,文章对该桥进行静载试验,介绍了试验工况及测点布置,同时基于结构有限元软件全桥仿真模拟分析,将试验实测数据与理论数据及规范值的进行对比分析,从而判断该桥在试验荷载作用下的实际工作状态是否满足设计要求。试验结果表明:该桥上部结构强度、刚度均满足设计及规范的要求,试验结果可供同类型桥梁试验参考。

关键词：飞燕式系杆拱桥静载试验荷载试验强度刚度

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超级电容器内部静电场仿真及其影响因素分析

电力电容器与无功补偿 2017年第1期38卷 84-89页

作者：侯智剑徐梦蕾王荀王子建徐志钮尹婷华北电力大学河北省输变电设备安全防御重点实验室河北保定071003 中国电力科学研究院湖北武汉430074

为了获得超级电容器内部电场分布,同时获得结构参数和材料属性对其内部场强的影响规律,在合理的简化和假设后在ANSYS中建立了超级电容器二维电场有限元仿真模型,获得电容器内部整体和局部场强集中处的场强分布,给出最大场强所在路径上... 详细信息

为了获得超级电容器内部电场分布,同时获得结构参数和材料属性对其内部场强的影响规律,在合理的简化和假设后在ANSYS中建立了超级电容器二维电场有限元仿真模型,获得电容器内部整体和局部场强集中处的场强分布,给出最大场强所在路径上的场强分布并对结果进行了理论分析。基于该模型对多孔电极孔型、介电常数、电解液结构参数和材料属性对电容器内部场强分布的影响规律进行了研究,获得了相关参数对电容器内部场强的影响规律。本文研究对超级电容器材料选型、结构优化具有一定参考价值。

关键词：超级电容器电场 ANSYS 结构参数材料属性