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。

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.

合成了3种萘酚醛缩色胺席夫碱过渡金属配合物[Cu (L)₂(DMF)₂](1)、[Ni (L)₂(DMF)₂](2)和[Zn (L)₂](3)，其中HL=N-[(2-hydroxy-1-naphthalenyl) methylene]-[(1H-indol-3-yl) ethyl]imine。利用红外光谱、元素分析和单晶X射线衍射等测试手段对配合物1~3进行了结构表征。采用MTT法对该系列配合物进行了体外抗肿瘤活性初筛，结果表明配合物1~3对人胃癌细胞MGC-803、人非小细胞肺癌细胞A549和人乳腺癌细胞MDA-MB-231都有较好的抑制作用。通过流式细胞术检测配合物1诱导肿瘤细胞凋亡的情况，结果显示配合物1诱导MGC-803细胞发生晚期凋亡；随后，细胞刮板实验表明随着配合物1浓度的增加，其对MGC-803细胞的杀伤作用增强，且杀伤作用呈剂量依赖性。

使用多齿希夫碱配体H₄L(H₄L=N'，N″-((1E，1'E)-(1，10-菲咯啉-2，9-二酰基)双(亚甲基)双(2-羟基苯甲酰肼))与Tb(acac)₃·2H₂O反应(acac^-=乙酰丙酮根)，通过溶剂热法，设计并合成了一例结构新颖的双核铽配合物[Tb₂(L)(H₂L)]·2CH₃OH·CH₃CN (1)，并研究了该配合物的结构、荧光性质及生物活性。单晶X射线衍射分析表明该配合物主要含有2个Tb^Ⅲ离子和2个失去不同质子的配体离子(L^4-和H₂L^2-)。中心Tb1和Tb2离子都是九配位的，其几何构型呈现扭曲的呼啦圈形。固体荧光实验测试结果表明：该配合物在室温下表现出Tb^Ⅲ离子的荧光特征发射峰。生物活性研究表明，与配体H₄L和稀土离子相比较，配合物具有更强的抗菌活性。采用紫外可见光谱法、循环伏安法、凝胶电泳法和荧光光谱法研究了该配合物与小牛胸腺DNA之间的相互作用，结果表明配合物主要以插入作用的方式与小牛胸腺DNA结合。

Three new copper(Ⅱ) complexes 1-3 of Schiff base ligands HL¹ (2-hydroxybenzaldehyde2-(2-oxo-1, 2-diphenylethylidene)hydrazone), HL² (4-hydroxybenzaldehyde2-(2-oxo-1, 2-diphenylethylidene)hydrazone) and L³ (2-methoxybenzaldehyde2-(2-oxo-1, 2-diphenylethylidene)hydrazone) were synthesized from methanolic medium. The complexes were characterized by elemental analyses, spectroscopic methods, magnetic susceptibility measurements, and density functional theory (DFT) studies. The synthesized ligands were characterized structurally by single-crystal X-ray diffraction studies. The optimized structure of the complexes was ascertained by DFT studies. The DNA binding ability of the complexes with calf thymus DNA (CT-DNA) was studied by UV-Vis absorption and fluorescence emission spectral studies. Absorption spectral studies revealed a hyperchromic effect and suggested the possible mode of interaction with CT-DNA. The competitive binding studies using ethidium bromide (EB) show that the complexes can replace DNA from DNA-EB adduct and suggests that the complexes probably bind to CT-DNA in intercalative mode. In vitro antibacterial activity of the complexes against Gram-negative bacteria Klebsiella pneumoniae (K. pneumoniae), Escherichia coli(E. coli), and Shigella boydii (S. boydii), and gram-positive bacteria Staphylococcus aureus (S. aureus) exhibited an appreciable antibacterial activity of complex 2 against K. pneumoniae and S. boydii, but complexes 1 and 3 did not show any significant antibacterial activity.

通过缩合反应制备了一例简单的席夫碱探针苯并色烯-2-甲醛缩二氨基马来腈(1)，使用核磁共振氢谱/碳谱、质谱和单晶X射线衍射等手段表征了探针的结构。荧光测试表明，探针1自身无荧光，而次氯酸根(ClO^-)能够特异性打开探针1在530 nm处的强荧光发射。探针1对ClO^-响应灵敏且在数秒内完成。通过质谱和理论计算手段研究了ClO^-介导的探针1的分解反应机理。此外，该探针还可用于活细胞、斑马鱼和拟南芥中ClO^-的荧光成像。

水杨醛席夫碱的合成与聚集诱导发光(AIE)性能研究是郑州大学化学学院针对化学专业本科学生设计并开设的一个综合实验项目，已经开设了5个学年，经过不断的改进和完善，形成了具有代表性的实验教学课程思政案例。案例以AIE这一由中国人原创的前沿科学理论为载体，通过AIE现象发现过程的学习、在不同条件下分组亲身实践AIE的合成操作、观察AIE的发光性能等过程，将AIE现象与国家科技发展、社会需求相联系，把“民族自豪感”“科研创新精神”“社会担当精神”“辩证唯物主义思维”等课程思政元素融入到实验教学中，让学生在提高“发现问题、分析问题、解决问题”综合能力的同时，充分了解荧光材料在国民经济和社会发展中的重要作用，提升学生的民族自尊心和自信心，坚定“见人所未见，思人所未思”的科研理念，激发服务国家发展的热情。

Two new dinuclear lanthanide(Ⅲ) complexes, namely [Ln₂(dbm)₂(HL)₂(CH₃OH)₂]·4CH₃OH [Ln=Tb (1) and Dy (2), Hdbm=dibenzoylmethane] have been synthesized using prepared multidentate Schiff base ligand H₃L (hydroxy-acetic acid(4-diethylamino-2-hydroxy-benzylidene)-hydrazide) with good biological activity. Structure characterizations show that the complex comprises two Ln³⁺ ions, two dbm^- ions, two HL^2- ligands, two CH₃OH molecules, and four free methanol molecules. Each Ln³⁺ ion is eight-coordinated. The two central Ln(Ⅲ) ions are bridged by two μ₂-O atoms leading to a parallelogram [Ln₂O₂] core. The interaction between the compounds (H₃L, 1, and 2) and the calf thymus DNA (CT-DNA) has been further confirmed by UV-Vis spectrometry, fluorescence titration, and cyclic voltammetry. The results showed that both 1 and 2 could undergo insertion with CT-DNA.

Two new complexes, [Zn₂(L1)(HL1)(NO₃)]·CH₃OH (1) and [Zn₃(L2)(L3)₃Cl]·CH₃OH (2), were successfully synthesized by'one-pot'method based on cinnoline-3-ylhydrazine ligand and zinc with 2-hydroxy-4-methoxybenz-aldehyde and 2-hydroxy-3-methoxybenzaldehyde ligands, respectively, where H₂L1=5-methoxy-2-(phthalazin-1-yl-hydrazonomethyl)-phenol, H₂L2=2-methoxy-6-(phthalazin-1-yl-hydrazonomethyl)-phenol, HL3=2-(1, 8-dihydro-[1,2,4]triazolo[3,4-α]phthalazin-3-yl)-6-methoxy-phenol. Complexes 1 and 2 were characterized by infrared spectroscopy, elemental analysis, single-crystal X-ray diffraction, powder X-ray diffraction, etc. It is worth noting that the cinnolin-3-yl-hydrazine ligand and 2-hydroxy-3-methoxybenzaldehyde form two types of Schiff bases (H₂L2 and HL3) when in situ reacting and coordinating with Zn(Ⅱ), and HL3 also has two coordination modes. In addition, the fluorescence performance showed that complex 1 can achieve selective and sensitive sensing of Al³⁺ in water with a detection limit of 6.37 μmol·L^-1.

本研究通过预修饰和后修饰2种策略分别合成了官能化锆基金属有机骨架(MOF)材料UiO-66-CHO和UiO-66-CH=C (CN)₂，用于去除水中的四环素(TC)。采用粉末X射线衍射、FTIR、¹H NMR、热重分析、扫描电子显微镜和N₂吸附-脱附等测试手段对合成的MOFs进行了表征。UiO-66-CHO较UiO-66-CH=C (CN)₂比表面积大，吸附性能更好。实验数据证实，2种MOFs对TC的吸附符合准二级动力学和Langmuir等温线模型，是单层的化学吸附。在pH=9.0时，UiO-66-CHO和UiO-66-CH=C (CN)₂的理论最大吸附量分别为199.28和62.61 mg·g^-1，平衡时间为150 min。热力学分析表明，UiO-66-CHO吸附TC是一个自发的吸热过程。UiO-66-CHO在重复5次循环吸附后，对TC去除率仍达75%以上。