Cadmium sulfide/anodic alumina nanoporous bi-layer film was designed for the first time by two-step anodization followed by a sol–gel spin coating method. The chemical composition, morphological, electrical and structural properties of the AA and Cd/AA nanoporous membranes have been examined. The morphological investigation of AA layer demonstrates the development of an exceptionally ordered hexagonal exhibit of nanoporous anodic alumina of pore diameter ~ 55 nm and inter-pore distance ~ 125 nm. Though, CdS/AA demonstrated the deposition of nanoporous CdS layer from agglomerated CdS nanoparticles on the surface of the membrane of AA. The energy-dispersive X-ray spectrum of CdS/AA outlined signs of O, Al, Cd, and S, which shows its high purity. The X-ray diffraction affirmed the development of cubic-phase CdS in the favored (220) orientation with normal ~ 86.2 nm crystallite size. The present voltage and resistance–concentration attributes of the CdS/AA layer as a glucose biosensor are fitted well with second-order polynomial behavior (correlation coefficient = 0.981). The glucose concentration changed from 0 to 400 mg/dl. In light of the upsides of the fabrication approach, this new age of minimal effort biosensors can be utilized as a guarantee building block for nanophotonic and nanoelectronic gadgets.

中文翻译：

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溶胶-凝胶旋涂硫化镉/阳极氧化铝纳米多孔双层膜的六边形直径及其传感应用

硫化镉/阳极氧化铝纳米多孔双层膜首次通过两步阳极氧化和溶胶-凝胶旋涂法设计。已经检查了 AA 和 Cd/AA 纳米多孔膜的化学成分、形态、电学和结构特性。AA 层的形态研究表明，纳米多孔阳极氧化铝的异常有序六边形展品的发展，其孔径为 ~ 55 nm，孔间距为 ~ 125 nm。然而，CdS/AA 证明了纳米多孔 CdS 层从聚集的 CdS 纳米粒子沉积在 AA 的膜表面上。CdS/AA 的能量色散 X 射线光谱勾勒出 O、Al、Cd 和 S 的迹象，显示其高纯度。X 射线衍射证实立方相 CdS 以有利的 (220) 取向发展，具有正常的~86.2 nm 微晶尺寸。CdS/AA 层作为葡萄糖生物传感器的当前电压和电阻 - 浓度属性与二阶多项式行为（相关系数 = 0.981）非常吻合。葡萄糖浓度从 0 变为 400 mg/dl。鉴于制造方法的优点，这个新时代的最小努力生物传感器可以用作纳米光子和纳米电子小工具的保证构建块。