本論文主要以泡沫鎳來當作工作電極，再利用氫氧化鎳(電鍍法、水熱法)、石墨烯來做非酵素型葡萄糖感測器的修飾，最後再改變照光的情況來增加靈敏度，探討從材料結構及照光種類來實驗出最佳的非酵素型葡萄糖感測器條件。由XRD分析出電鍍法和水熱法所成長出來的氫氧化鎳分別為α和β-Ni(OH)2。電鍍法氫氧化鎳的靈敏度為11843.2 μAmM-1cm-2 (5~50μM)、LOD為660.4 nM，水熱法氫氧化鎳的靈敏度為16799.6 μAmM-1cm-2 (5~50μM)、LOD為624.7 nM。
石墨烯的修飾提升試片整體導電性與表面積，複合石墨烯的電鍍法氫氧化鎳的靈敏度為13769.2 μAmM-1cm-2 (5~50μM)、LOD為609.3 nM、提升程度為16.26 %；複合石墨烯的水熱法氫氧化鎳的靈敏度為17333.2 μAmM-1cm-2 (5~50μM)、LOD為686.5 nM、提升程度為3.17 %。
在藍光LED的照射下，氫氧化鎳釋放更多電子，提升氫氧化鎳與葡萄糖的反應，電鍍法氫氧化鎳的靈敏度為12663.2μAmM-1 cm-2 (5~50μM)、LOD為437.8 nM、提升程度為6.92 %，水熱法氫氧化鎳的靈敏度為17323.2 μAmM-1cm-2 (5~50μM)、LOD為241.9 nM、提升程度為3.11 %；複合石墨烯的電鍍法氫氧化鎳的靈敏度為14136.4 μAmM-1cm-2 (5~50μM)、LOD為582.4 nM、提升程度為2.67 %，複合石墨烯的水熱法氫氧化鎳的靈敏度為17931.2 μAmM-1cm-2 (5~50μM)、LOD為232.3 nM、提升程度為3.45 %。

In this study, we report nickel (Ni) foam based non-enzymatic glucose sensors with graphene (G) and nickel hydroxide Ni(OH)2 as modifiers. The G/Ni foam was synthesized using chemical vapor deposition (CVD) process and two different routes were devised in the preparation of G/Ni(OH)2/Ni foam such as electroplating and hydrothermal methods. All the samples were then fabricated and used as working electrodes to measure various glucose concentrations. Thus, the results depict that best sensitivity was observed for electroplating based Ni(OH)2 foam exhibits the sensitivity of 11843.2 μAmM-1cm-2 and the LOD is 660.4 nM. While the hydrothermal based Ni(OH)2 foam which is 16799.6 μAmM-1cm-2 and the LOD is 624.7 nM.
On the other hand, the addition of graphene into Ni(OH)2 foam enhances the conductivity and surface area of all samples. Thus, the best sensitivity of electroplating based G/Ni(OH)2 gives 16769.2 μAmM-1cm-2 , LOD is 609.3 nM, and the increasing ratio of sensitivity is 16.26 %. Whereas the hydrothermal based G/Ni(OH)2 is 17333.2 μAmM-1cm-2 , LOD is 686.5 nM, and the increasing ratio of sensitivity is 3.17 %.
Furthermore, different kinds of LEDs (blue and green) were used to optimize the sensitivity of G/Ni(OH)2 based non-enzymatic glucose sensors. Among them, glucose sensors (both Ni(OH)2 and G/Ni(OH)2 foam) under blue LED shows striking improvement in sensitivity. It is because the electron transportation is increased in the presence of blue LED, and thereby increases the reaction of Ni(OH)2 and glucose, which also enhances the sensitivity. The best sensitivity of electroplating based Ni(OH)2 gives 12663.2 μAmM-1cm-2, LOD is 437.8 nM, and the increasing ratio of sensitivity is 6.92 %. Whereas the hydrothermal based Ni(OH)2 is 17323.2 μAmM-1cm-2 , LOD is 241.8 nM, and the increasing ratio of sensitivity is 3.11 %. The best sensitivity of electroplating based G/Ni(OH)2 gives 14136.4 μAmM-1cm-2 , LOD is 582.4 nM, and the increasing ratio of sensitivity is 2.67 %. Whereas the hydrothermal based G/Ni(OH)2 is 17931.2 μAmM-1cm-2 , LOD is 232.3 nM, and the increasing ratio of sensitivity is 3.45 %.

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