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关键词： Graphene   fiber sensors   biochemical sensing  

摘要： Single atomically thick graphene, with unique structural flexibility, surface sensitivity, and effective light-mater interaction, has shown exceptional advances in optoelectronics. It opens a door for diverse functionalized photonic devices, ranging from passive polarizers to active lasers and parametric oscillators. Among them, graphene-fiber biochemical sensors combine the merits of both graphene and fiber structures, demonstrating impressively high performances, such as single-molecule detectability and fast responsibility. These graphene-fiber biochemical sensors can offer tools in various applications, such as gas tracing, chemical analysis, and medical testing. In this paper, we review the emerging graphene-fiber biochemical sensors comprehensively, including the sensing principles, device fabrications, systematic implementations, and advanced applications. Finally, we summarize the state-of-the-art graphene-fiber biochemical sensors and put forward our outlooks on the development in the future.

关键词： 定量核磁共振   食品分析检测   磷谱  

摘要： 文章综述了近年来定量核磁共振磷谱在食品活性磷脂、磷酸盐、有机磷农药、标准品纯度鉴定等方面的研究进展,对其定量分析的影响因素进行了分析,并对其未来发展方向进行了展望。

关键词： Flash动画   生物化学   动画案例  

摘要： Flash动画作为计算机发展的产物,具有信息量大、表现形式丰富多样等特点,而生物化学作为医学生的重要专业基础课,存在着内容繁杂抽象等问题,将Flash动画引入生物化学课程教学可以提高学生学习的兴趣和效率,增强线上线下师生互动,加强教学和临床的联系,进而提高生物化学课程的整体教学效果。

关键词： ADDIE模型   高职教育   生物化学   混合式教学  

摘要： 本文依据ADDIE教学设计模型,紧扣以工作任务为导向的高职教育理念,将实际工作过程引入生物化学教学,开展混合式教学模式实践探索。以临床医学专业生物化学“糖代谢”一章教学为例,具体呈现ADDIE模型对混合式教学模式设计的有效引导,并与传统课堂的教学效果进行对比,总结其优势和不足。结果显示,该教学模式通过“任务驱动”和“行为导向”,让学生在完成学习任务的同时掌握了未来工作岗位技能,激发了学生的学习兴趣,强化了职业能力培养。但岗位情境设计、评价方式等方面仍有不足之处,需进一步诊改(教学工作诊断与改进)和优化。

关键词： Tamarillo   Flavour biosynthesis   Glycosides   Volatile organic compounds (VOCs)   Lipoxygenase (LOX) pathway  

摘要： Key metabolites and flavour-regulation pathways in tamarillo were investigated to explore the development of free and glycosylated volatile organic compounds (VOCs) during fruit maturation. The concentrations of free and bound VOCs were determined by gas chromatography-mass spectrometry analysis. Changes of physical parameters, concentrations of flavour precursors, and activities of key endogenous enzymes were also monitored. A total of 22 free VOCs were identified with C6 alcohols and esters being the major compounds. From the 83 glycosylated VOCs detected, phenols and terpenoids were the dominant components. The concentration of total bound VOCs increased up to 4 times during fruit ripening. Lipoxygenase pathway is confirmed as an important biosynthetic mechanism for the generation of free and glycosylated VOCs during tamarillo ripening. This biosynthesis pathway is highly correlated with the activities of key enzymes and the contents of substrates, especially linolenic acid (p < 0.05 or p < 0.01).

关键词： 体育舞蹈   运动训练   生物化学监控  

摘要： 体育舞蹈原名国际标准舞,是由交谊舞逐渐发展演变而来,具有体育运动普遍规律和舞蹈特殊规律的新兴体育项目。本文从运动训练生物化学原理的角度出发,查阅相关的文献资料,梳理出体育舞蹈训练监控中常用的生物化学指标,并结合运动训练计划,分析其指标的意义和作用,评定运动员的身体机能状态,为提高训练效率,丰富我国体育舞蹈训练体系和科学化训练提供新的思路。

关键词： 思维导图   生物化学   护理专业  

摘要： 目的探讨思维导图在生物化学教学中的应用效果。方法选择我院2019级护理专业两个平行教学班113名学生为研究对象,其中1班为对照组,采用PPT授课,2班为实验组,在传统PPT教学的基础上采用思维导图辅助授课。课程结束后对两组学生的考试成绩进行统计学分析,对实验组进行思维导图辅助生物化学教学的问卷调查。结果实验组学生考试成绩优于对照组,差异有统计学意义(P<0.05),实验组学生对思维导图辅助生物化学教学效果感到比较满意。结论思维导图可提高生物化学课程教学质量和学生学习效果。

关键词： 桉树   害虫   群落多样性   虫口密度   相关性  

摘要： [目的]研究桉树趋嫩性害虫综合防治技术。[方法]对桉树芽木虱、蓟马、蚜虫、叶蝉、叶螨等桉树趋嫩性害虫进行调查与分析。[结果]潮间带蟹+森林鼠妇乙醇液对桉树趋嫩性害虫具有比较明显的防治效果,控制效果达到93.1%。[结论]结果在林业生产中有一定意义。

关键词： 生物化学   梯度实验教学   创新意识   科研能力  

摘要： 生物化学是医学专业的一门重要基础学科。目前生物化学实验课程教学还存在一些问题,如缺乏整体感,课程内容之间缺少联系,对实验的具体应用强调不够,对大学生科创项目支撑不足。同时,生物化学实验内容没有做到与时俱进,常常出现一本教案用几年的现象。针对这些问题,本文拟重新整合生物化学实验课程,提出建立以能力为导向的梯度实验教学体系。先培养学生对科研的兴趣,使其掌握最基本的实验操作,然后通过综合实验进行集训,鼓励学生参与各项科研活动,将创新意识和能力的培养贯穿于实验教学全过程。

关键词： ferritin   iron homeostasis   oxidative responses   antioxidant   Fenton reaction  

摘要： Ferritin,an iron-storage protein,regulates cellular iron metabolism and oxidative *** ferritin structure is characterized as a spherical cage,inside which large amounts of iron are deposited in a safe,compact and bioavailable *** ferritins readily catalyze Fe(II)oxidation by peroxides at the ferroxidase center to prevent free Fe(II)from participating in oxygen free radical formation via Fenton ***,ferritin is generally recognized as a cytoprotective stratagem against intracellular oxidative *** expression of cytosolic ferritins is usually regulated by iron status and oxidative stress at both the transcriptional and post-transcriptional *** mechanism of ferritin-mediated iron recycling is far from clarified,though nuclear receptor co-activator 4(NCOA4)was recently identified as a cargo receptor for ferritin-based lysosomal *** ferritins are heteropolymers assembled by H-and L-chains in different *** mitochondrial ferritins are homopolymers and distributed in restricted *** play protective roles in mitochondria where heme-and Fe/S-enzymes are synthesized and high levels of ROS are *** ferritin disorders are mainly related to the L-chain mutations,which generally cause severe movement *** review is focused on the biochemistry and function of mammalian intracellular ferritin as the major iron-storage and anti-oxidation protein.