【大学化学】doi: 10.3866/PKU.DXHX202311104
尿酸是嘌呤在人体内代谢的最终产物,如果人们长期食用嘌呤含量高的食物或者不新鲜的各种肉类,使人体尿酸失衡,就容易导致血液中尿酸过高,引发一系列健康问题。本实验制备了一种新型Cd2In2S5纳米晶,将Cd2In2S5纳米晶与丝网印刷碳柔性电极结合,所得电极可用于尿酸检测。可通过检测尿酸含量来监测人体健康状况以及判断肉类新鲜程度。本实验创新性的将神奇的纳米材料走向市场,让中小学生、大学生、社会人群都能明白尿酸检测原理。实验所用材料便宜易得,操作简单,可实现尿酸的居家检测。
【大学化学】doi: 10.12461/PKU.DXHX202505032
以学生为主体的实践教学是新时代背景下深入贯彻落实“立德树人”根本任务的重要举措,并逐渐成为课堂教学改革的关键着力点。针对仪器分析课程知识点细碎、多学科交叉性强、技术迭代迅速等特征,以及传统教学中存在的课堂与实验室割裂、教学与产业脱节、理论与应用分离等现实困境,本教学团队创新提出“课堂设进企业,产业融入教学”的教学理念,通过在企业实况下设立教学现场,重构知识图谱,让企业的研发实验室成为新的理论知识实践载体。这种贯通“教-研-产”的创新教学模式将有机融合“人才链-教育链-产业链-创新链”,为培育具有产业视野和报国情怀的新时代仪器人才提供系统性支撑。
Green synthesis of MIL-101/Au composite particles and their sensitivity to Raman detection of thiram
【无机化学学报】doi: 10.11862/CJIC.20240059
Metal-organic framework (MOF) MIL-101 and surface plasmon polariton (SPP) supported gold nanoparticles (Au NPs) hybrid systems were developed as a highly sensitive and reproducible surface-enhanced Raman scattering (SERS) detection platform, in which a green electrostatic self-assembly technology was adopted to construct the substrate. In an aqueous solution, the electronegativity of the particles can be used to prepare the composite substrate without any surface modifier. Due to the enrichment capacity of MIL-101 and the electromagnetic enhancement from Au NPs, the well-designed MIL-101/Au composites possessed ultrahigh sensitivity with the detection limit of Rhodamine 6G (R6G) as low as 10-10 mol·L-1. Meanwhile, the substrate exhibits high stability, excellent reproducibility, and recyclability. Additionally, the novel substrate can be explored for direct capture, and sensitively detect pesticide residues such as thiram.
【大学化学】doi: 10.12461/PKU.DXHX202408027
卡宾及其配合物案例教学的设计思想是将基础理论与前沿研究相结合来进行课堂教学。在对文献所报道的研究成果用基础理论进行抽丝剥茧地分析和讨论过程中,帮助学生夯实基础,真正做到固本强基的同时培养学生的创新意识与创新能力。
