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Activity and Enantioselectivity of Lipase Immobilized in CTAB Microemulsion-based Gels

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Chemical Research in Chinese Universities 2007年第6期23卷 749-752页

作者： SONG Shao-fang luan yu-xia LU Fu-sui College of Chemistry and Material Science Shandong Agricultural University Taian 271018 P. R. China Institute of Pharmaceutics School of Pharmaceutical Science Shandong University Jinan 250100 P. R. China

Introduction The formation of gelatin-containing mieroemulsionbased gels（MBGs） was first described in 1986 and the physical/structural characterization was carried out by a number of groups with a variety of techniques including tracer diffusion, electrical conductivity, NMR, X-ray and small angle neutron scattering. The MBGs were proposed to comprise an extensive, rigid, interconnected network of gelatin/water rods stabilized by a monolayer of surfactant, in coexistence with a po- pulation of conventional W/O microemulsion droplets.

关键词： Microemulsion-based gels Immobilized lipase Racemic ibuprofen Enantioselectivity Enantiomerie excess

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生物质基超疏水表面的构建及应用研究进展

印刷与数字媒体技术研究 2024年第3期 1-10页

作者：郝站华石葆莹栾夏雨汪思源唐依琳于佳慧徐瑾祥王玉峰天津科技大学轻工科学与工程学院天津300457 天津天狮学院食品工程学院天津301700

由生物质材料构建的超疏水表面因其绿色环保,可用于食品包装、生物医学等领域,而受到了越来越多的关注。本研究对纤维素纳米晶体(CNC)、木质素纳米颗粒(LNP)、纳米壳聚糖等生物质胶体颗粒进行了介绍,重点综述了使用上述生物质材料构建... 详细信息

由生物质材料构建的超疏水表面因其绿色环保,可用于食品包装、生物医学等领域,而受到了越来越多的关注。本研究对纤维素纳米晶体(CNC)、木质素纳米颗粒(LNP)、纳米壳聚糖等生物质胶体颗粒进行了介绍,重点综述了使用上述生物质材料构建超疏水表面的方法,并总结了这些可持续的超疏水表面在油水分离、生物医学、淡水收集、食品包装等方面的应用。

关键词：生物质纤维素纳米晶体壳聚糖木质素超疏水

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双烃链表面活性剂的聚集行为及其应用

物理化学学报 2005年第4期21卷 450-457页

作者：徐桂英栾玉霞刘军山东大学胶体与界面化学教育部重点实验室济南250100 山东大学药学院药物制剂研究所济南250012

介绍了双烃链表面活性剂的基本性质、分类及其在纳米材料和生命科学等领域的某些应用,并以二(2鄄乙基己基)琥珀酸酯磺酸钠(AOT)和二(2鄄乙基己基)磷酸钠(NaDEHP)为例,介绍了二者的相行为,反胶束的形成、性质等的差异,并结合自己的工作... 详细信息

介绍了双烃链表面活性剂的基本性质、分类及其在纳米材料和生命科学等领域的某些应用,并以二(2鄄乙基己基)琥珀酸酯磺酸钠(AOT)和二(2鄄乙基己基)磷酸钠(NaDEHP)为例,介绍了二者的相行为,反胶束的形成、性质等的差异,并结合自己的工作探讨了二者与大分子的相互作用.

关键词：双烃链表面活性剂聚集行为应用

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稳态荧光法研究表面活性剂/大分子相互作用

物理化学学报 2005年第5期21卷 577-582页

作者：徐桂英栾玉霞刘静于丽山东大学胶体与界面化学教育部重点实验室济南250100

稳态荧光技术已被证明是研究表面活性剂缔合体系的重要手段,它对水介质体系中发生的相变具有十分灵敏的检测能力.结合本课题组的工作,系统地总结了利用荧光光谱技术研究表面活性剂与大分子相互作用的方法和原理.

关键词：稳态荧光光谱表面活性剂大分子相互作用

Metagenomic insights into microorganisms and antibiotic resistance genes of waste antibiotic fermentation residues along production,storage and treatment processes

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Journal of Environmental Sciences 2024年第2期136卷 45-55页

作者： Ziming Han xiao luan Haodi Feng Yanqin Deng Min Yang yu Zhang State Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China National Engineering Research Center of Industrial Wastewater Detoxication and Resource Recovery Beijing 100085China Wuhan Agricultural Inspection Center Wuhan 430016China University of Chinese Academy of Sciences Beijing 100049China

Antibiotic fermentation residue(AFR)is nutrient-rich solid waste generated from fermentative antibiotic production *** is demonstrated that AFR contains high-concentration of remaining antibiotics,and thus may promote antibiotic resistance development in receiving environment or feeding farmed ***,the dominate microorganisms and antibiotic resistance genes(ARGs)in AFRs have not been adequately explored,hampering understanding on the potential antibiotic resistance risk development caused by ***,seven kinds of representative AFRs along their production,storage,and treatment processes were collected,and multiple methods including amplicon sequencing,metagenomic sequencing,and bioinformatic approaches were adopted to explore the biological characteristics of *** expected,antibiotic fermentation producer was found as the predominant species in raw AFRs,which were collected at the outlet of fermentation ***,except for producer species,more environment-derived species persisted in stored AFRs,which were temporarily stored at a semi-open *** genus,classified as Firmicutes phylum and Bacilli class,became predominant bacterial taxa in stored AFRs,which might attribute to its tolerance to high concentration of *** from metagenomic sequencing together with assembly and binning approaches showed that these newly-colonizing species(e.g.,Lactobacillus genus)tended to carry ARGs conferring resistance to the remaining ***,after thermal treatment,remaining antibiotic could be efficiently removed from AFRs,and microorganisms together with DNA could be strongly *** sum,the main risk from the AFRs was the remaining antibiotic,while environment-derived bacteria which tolerate extreme environment,survived in ARFs with high content antibiotics,and may carry ***,hydrothermal or other harmless treatment technologies are recommended to remove antibiotic content and inactivate bacteria befor

关键词： Pharmaceutical manufacturing Antibiotic mycelia residue Antibiotic resistance bacteria Thermal treatment Solid waste

On Stability Discrimination of Limit Cycles for Piecewise Smooth Systems

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Acta Mathematica Sinica,English Series 2024年第7期40卷 1785-1803页

作者： Mao An HAN xia yu ZHOU School of Mathematical Sciences Zhejiang Normal UniversityJinhua321004P.R.China

This paper is concerned with the problem of stability discrimination of limit cycles for piecewise smooth *** first establish the Poincaré map near a periodic orbit,and deduce the first order derivative of the map for general piecewise smooth systems on the ***,we obtain a sufficient condition for determining the stability of limit cycles for these systems.

关键词： Piecewise smooth system limit cycle stability

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Recommendations for articles and reviews in colorectal cancerrelated research at the year-end of 2023

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World Journal of Gastroenterology 2024年第30期30卷 3548-3553页

作者： Wen-yu luan Hao Lin Yan-Dong Miao Department of Cancer Center The Yantai Affiliated Hospital of Binzhou Medical UniversityThe Second Medical College of Binzhou Medical UniversityYantai 264100Shandong ProvinceChina

As peer reviewers of the World Journal of Gastroenterology,our weekly routine involves immersing ourselves in the newly published issue,particularly focusing on the realm of colorectal cancer(CRC)*** diligently sift through various contributions,ranging from comprehensive reviews to original articles and other scholarly *** meticulous examination,we discern the most notable papers,delving into each with careful scrutiny to distill their merits and ***,this undertaking demands considerable time and ***,it stands as an indispensable pursuit,affording us a profound comprehension of the latest breakthroughs in CRC ***,these meticulously curated selections furnish readers with invaluable resources,serving as enduring references for the nuanced exploration of this dynamic field.

关键词： Colorectal cancer Molecular mechanism Genetic marker Application of new technologies Diagnosis Treatment

High-Temperature Stability of Mg-1Al-12Y Alloy Containing LPSO Phase and Mechanism of Its Portevin-Le Chatelier(PLC)Effect

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Acta Metallurgica Sinica(English Letters) 2024年第6期37卷 982-998页

作者： Qian-Long Ren Shuai yuan Shi-yu luan Jin-Hui Wang xiao-Wei Li xiao-yu Liu Qinghai Provincial Key Laboratory of New Light Alloys Qinghai Provincial Engineering Research Center of High Performance Light Metal Alloys and FormingQinghai UniversityXining810016China School of Materials Science and Engineering Shenyang University of TechnologyShenyang110870China

In this study,the high-temperature stability and the generation mechanism of the Portevin-Le Chatelier(PLC)effect in solid-solution Mg-1Al-12Y alloy with different heat treatment processes were investigated by adjusting the content of long-period stacking ordered(LPSO)*** was found that the content of LPSO phases in the alloys differed the most after heat treatment at 530℃for 16 h and 24 h,with values of 13.56%and 3.93%***,high-temperature tensile experiments were conducted on these two alloys at temperatures of 150℃,200℃,250℃,and 300℃.The results showed that both alloys exhibited the PLC effect at temperatures ranging from 150 to 250℃.However,at a temperature 300℃,only the alloy with a greater concentration of LPSO phases exhibited the PLC effect,whereas the alloy with a lower proportion of LPSO phases did not exhibit this ***,both alloys exhibited remarkable high-temperature stability,with the alloy containing a greater percentage of LPSO phases also demonstrating superior *** underlying mechanism for this phenomenon lies in the exceptional high-temperature stability exhibited by the second phase within the ***,the LPSO phase effectively obstructs the movement of dislocations,and it also undergoing kinking to facilitate plastic deformation of the *** results indicate that the PLC effect can be suppressed by reducing dislocation pile-up at grain boundaries,which leads to a decrease in alloy plasticity but an increase in *** presence of the PLC effect in the WA121 alloy is attributed to the abundant dispersed second phase within the alloy,which initially hinders the movement of dislocations,leading to an increase in stress,and subsequently releases the dislocations,allowing them to continue their movement and thereby reducing in stress.

关键词： Magnesium alloy Long-period stacking ordered(LPSO)phase Portevin-Le Chatelier effect High temperature

Evolution of inner wall wrinkle defects in the sinking zone of a thick-walled steel tube during radial forging

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Advances in Manufacturing 2024年第2期12卷 396-408页

作者： yu-Zhao Yang Cheng Xu Li-xia Fan School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing210094People’s Republic of China

An axial wrinkle defect was observed in the inner wall of the sinking zone of a thick-wall steel tube processed by cold radial *** can evolve into *** present study focuses on the evolution of wrinkles and the effects of process parameters on them using a three-dimensional radial forging process finite element model,radial forging experiments,and surface morphology *** results indicated that the vertical section angle of the hammer die and the size of the tube blank significantly affect the evolution of *** height-to-width ratioλwas introduced to describe the morphology of *** had an approximately linear relationship with the radius reduction in the sinking *** was a linear correlation between the growth slope ofλand the axial to circumferential strain ratio|εr/εθ|,which can predict theλunder few process *** the 30SiMn2MoVA steel,at the junction of the forging and sinking zones,the threshold ofλof the wrinkle that can evolve into a fissure is approximately 1.123.

关键词： Radial forging Inner wall Wrinkle defects Evolution Sinking zone