Self-assembly of DNA-templated copper nanoclusters and carbon dots for ratiometric fluorometric and visual determination of arginine and acetaminophen with a logic-gate operation
作者: Xiangning BuYongxin FuXiaowen JiangHui JinRijun Gui
刊名: Microchimica Acta, 2020, Vol.187 (3), pp.154
来源数据库: Springer Nature Journal
DOI: 10.1007/s00604-020-4146-6
关键词: Dual-emitting nanocompositeRatiometric nanoprobeRatiometric logic gateFluorescent filter paperFluorescence visualization
原始语种摘要: This work describes the synthesis of red-emitting copper nanoclusters (CuNCs by using DNA as the template. DNA-templated CuNCs combined with blue-emitting carbon dots (CDs form the self-assembled complex DNA-CuNC/CDs through electrostatic interactions. In the presence of arginine (Arg, the blue fluorescence of CDs (with excitation/emission maxima at 350/440 nm is quenched. Addition of acetaminophen (AP induces the competitive combination of Arg and AP for the CDs. This results in the release of Arg from CDs and the recovery of blue fluorescence. On addition of both Arg and AP, the red fluorescence of CuNCs (with excitation/emission maxima at 350/670 nm undergoes only slight changes. Hence, the DNA-CuNC/CD complex can serve as a dually emitting ratiometric probe to determine both Arg and...
全文获取路径: Springer Nature  (合作)
影响因子:3.434 (2012)