College of Chemistry, Jilin University, Changchun 130012, China.
State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.
Chem Commun (Camb). 2024 Oct 29;60(87):12738-12741. doi: 10.1039/d4cc04305g.
In contrast to natural enzymes, nanozymes show promising advantages of low cost and high stability for analytical applications. The simple mix of L-phenylalanine (F) and Cu produces two-dimensional nanosheets of a coordination polymer with a high surface area ratio and rich exposed active sites as a novel catalyst. As the mimetic of natural laccase, this nanozyme (F-Cu) can catalyze the oxidative coupling reaction of 2,4-dichlorophenol (2,4-DP) and 4-aminoantipyrine (4-AP) to produce a distinct red product, thus establishing an intuitive and simple method for the detection of thiram. In the range of 0-7.5 μM, the absorbance intensity was linearly related to the concentration of thiram, and the detection limit was 0.0845 μM. The F-Cu nanozyme was successfully applied to the colorimetric detection of thiram in real samples.
与天然酶相比，纳米酶在分析应用中具有成本低、稳定性高的优势。简单混合 L-苯丙氨酸（F）和 Cu 可以产生具有高表面积比和丰富暴露的活性位点的二维配位聚合物纳米片，作为一种新型催化剂。作为天然漆酶的模拟物，这种纳米酶（F-Cu）可以催化 2,4-二氯苯酚（2,4-DP）和 4-氨基安替比林（4-AP）的氧化偶联反应，产生明显的红色产物，从而建立了一种直观、简单的检测福美双的方法。在 0-7.5 μM 的范围内，吸光度强度与福美双的浓度呈线性关系，检测限为 0.0845 μM。F-Cu 纳米酶成功应用于实际样品中福美双的比色检测。
