In this study, ZnSnO₃/NiO heterostructures were synthesized using a co-precipitation method followed by an annealing process. The gas-sensitive characteristics of the sensors based on these samples were evaluated. The results indicate that the sensor performance was optimized when the molar ratio of Ni to Zn was 1∶2. Specifically, the response values of the ZnSnO₃/NiO-2-based sensor to 100 μL·L^-1 triethylamine (TEA) gas at 220 ℃ reached 70.6, which were 6.1 times higher than that of the pure ZnSnO₃ based sensor. The findings demonstrate that ZnSnO₃/NiO heterostructures exhibited not only short response and recovery times (1 s/18 s) but also good gas selectivity, repeatability, and long-term stability. The enhanced sensing mechanism has been investigated in detail.

面向化学类(非高分子)专业的高分子化学实验教学发展较为缓慢，亟需紧跟研究前沿，引入新内容。本文总结了近十年的教学改革经验，并以温敏型高分子的制备、溶液性质、光学性能与应用为例，介绍如何通过实验教学内容、实验技术、教学方法等方面的创新，设计符合理科人才培养需求的、契合时代与科学发展的、被学生喜爱与重视的一系列高分子化学实验，以有效解决培养需求与课业负担之间的矛盾，且在不新增开课、课时有限的情况下，加入到化学类专业本科教学体系中，激发学生对学科领域的兴趣，提升学生的探究和创新能力。

将黑色素纳米颗粒(melanin nanoparticle, MNP)经聚乙二醇(polyethylene glycol，PEG)修饰制备得到PEG-MNP，随后通过与放射性的⁶⁸Ga³⁺离子螯合，高标记产率地制备得到⁶⁸Ga-PEG-MNP，标记产物稳定性良好。进一步将⁶⁸Ga-PEG-MNP通过雾化方式制备得到⁶⁸Ga-PEG-MNP PM_2.5(particulate matter 2.5，size < 2.5 μm)模拟颗粒，其经雾化小鼠吸入体内后，通过正电子断层扫描(positron emission tomography，PET)成像对小鼠进行全身显影，结果可见雾化的⁶⁸Ga-PEG-MNP PM_2.5模拟颗粒可由气管向肺部双叶区域扩散，并滞留于肺。体内的PET成像结果与离体放射自显影结果高度一致。

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。