This work explored the elaboration of dyestuffs chemical sensors based on methyl-naphthyl cyclen (1,4,7,10-tetraazacyclododecane) (MNCyclen) thin films, deposited on gold electrodes and characterized by electrochemical impedance spectroscopy (EIS). The methyl-naphthyl cyclen was synthesized in three steps: first, the cyclen was protected by the formation of its glyoxal bisaminal derivative, then the glyoxal aminal of cyclen was mono-alkylated, and finally the amine groups were deprotected by removal of the aminal bridges, and the product was characterized by liquid ¹H and ¹³C NMR spectroscopy. Thin films of MNCyclen were deposited on gold wafers using the spin-coating technique and characterized by means of infrared spectroscopy in ATR mode, contact angle measurements and atomic force microscopy. The chemical sensor was studied in the presence of Acid Yellow 25 (AY25), Acid Violet 7 (AV7), Indigo Blue (IB) and Acid red 1 (AR1) dyestuffs. Nyquist plots were fitted with an equivalent electrical circuit including two RC circuits in series corresponding to the MNCyclen film and its interface with the electrolyte. The main parameter that varies with dyestuff concentration is the resistance of the film/electrolyte interface (R_P). The highest sensitivity was obtained for AY25 dyestuff with a detection limit of 10⁻¹²M, based on an equivalent electrical model.

这项工作探索了基于甲基萘环（1,4,7,10-四氮杂环十二烷）（MNCyclen）薄膜的染料化学传感器的制作，该薄膜沉积在金电极上并通过电化学阻抗谱（EIS）进行了表征。甲基萘环素的合成分为三个步骤：首先，环素通过其乙二醛双氨基衍生物的形成得到保护，然后环己酮的乙二醛缩醛被单烷基化，最后通过去除氨基桥而使胺基脱保护。 ，并且该产品的特点是液体为¹ H和¹³13 C NMR光谱。使用旋涂技术将MNCyclen薄膜沉积在金晶片上，并通过ATR模式的红外光谱，接触角测量和原子力显微镜进行表征。在酸性黄25（AY25），酸性紫7（AV7），靛蓝（IB）和酸性红1（AR1）染料存在下对化学传感器进行了研究。Nyquist地块装有等效电路，该电路包括两个与MNCyclen膜相对应的RC电路及其与电解质的界面。随染料浓度变化的主要参数是薄膜/电解质界面的电阻（R _P）。为AY25染料为10的检测极限，获得最高的灵敏度^-12男，根据等效电模型。