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Visual colorimetric detection of tin(II) and nitrite using a molybdenum oxide nanomaterial-based three-input logic gate
Analytical and Bioanalytical Chemistry ( IF 3.8 ) Pub Date : 2018-05-09 , DOI: 10.1007/s00216-018-1109-4 Jiayan Du , Mengxin Zhao , Wei Huang , Yuequan Deng , Yi He
Analytical and Bioanalytical Chemistry ( IF 3.8 ) Pub Date : 2018-05-09 , DOI: 10.1007/s00216-018-1109-4 Jiayan Du , Mengxin Zhao , Wei Huang , Yuequan Deng , Yi He
We report a molybdenum oxide (MoO3) nanomaterial-based three-input logic gate that uses Sn2+, NO2−, and H+ ions as inputs. Under acidic conditions, Sn2+ is able to reduce MoO3 nanosheets, generating oxygen-vacancy-rich MoO3−x nanomaterials along with strong localized surface plasmon resonance (LSPR) and an intense blue solution as the output signal. When NO2− is introduced, the redox reaction between the MoO3 nanosheets and Sn2+ is strongly inhibited because the NO2− consumes both H+ and Sn2+. The three-input logic gate was employed for the visual colorimetric detection of Sn2+ and NO2− under different input states. The colorimetric assay’s limit of detection for Sn2+ and the lowest concentration of NO2− detectable by the assay were found to be 27.5 nM and 0.1 μM, respectively. The assay permits the visual detection of Sn2+ and NO2− down to concentrations as low as 2 μM and 25 μM, respectively. The applicability of the logic-gate-based colorimetric assay was demonstrated by using it to detect Sn2+ and NO2− in several water sources.
中文翻译:
使用基于氧化钼纳米材料的三输入逻辑门的可视比色法检测锡(II)和亚硝酸盐
我们报告一个氧化钼(MoO 3使用Sn)基纳米材料三输入逻辑门2+,NO 2 - ,和H +离子作为输入。在酸性条件下,Sn 2+能够还原MoO 3纳米片,生成富氧空位的MoO 3- x纳米材料,以及强大的局部表面等离子体共振(LSPR)和强烈的蓝色溶液作为输出信号。当NO 2 -被引入,所述的MoO之间的氧化还原反应3个纳米片和Sn 2+强烈抑制,因为NO 2 -消耗都是H +和Sn 2+。三输入逻辑门被用于Sn的视觉比色检测2+和NO 2 -在不同的输入状态。检测Sn的比色测定的极限2+和NO的最低浓度2 -通过测定可检测的被发现是分别27.5纳米和0.1微米。该测定法允许视觉检测的Sn 2+和NO 2 -下降到浓度低至分别2μM和25μM。所述基于逻辑门比色测定的适用性,通过使用它来检测的Sn证明2+和NO 2 -在几个水源。
更新日期:2018-05-09
中文翻译:
使用基于氧化钼纳米材料的三输入逻辑门的可视比色法检测锡(II)和亚硝酸盐
我们报告一个氧化钼(MoO 3使用Sn)基纳米材料三输入逻辑门2+,NO 2 - ,和H +离子作为输入。在酸性条件下,Sn 2+能够还原MoO 3纳米片,生成富氧空位的MoO 3- x纳米材料,以及强大的局部表面等离子体共振(LSPR)和强烈的蓝色溶液作为输出信号。当NO 2 -被引入,所述的MoO之间的氧化还原反应3个纳米片和Sn 2+强烈抑制,因为NO 2 -消耗都是H +和Sn 2+。三输入逻辑门被用于Sn的视觉比色检测2+和NO 2 -在不同的输入状态。检测Sn的比色测定的极限2+和NO的最低浓度2 -通过测定可检测的被发现是分别27.5纳米和0.1微米。该测定法允许视觉检测的Sn 2+和NO 2 -下降到浓度低至分别2μM和25μM。所述基于逻辑门比色测定的适用性,通过使用它来检测的Sn证明2+和NO 2 -在几个水源。