Facile preparation of bright orange fluorescent carbon dots and the constructed biosensing platform for the detection of pH in living cells.
长波长(橙光至红光)荧光发射与功能化是碳点(CDs)在生物传感和生物成像中发展的关键需求。本文以对苯二胺为碳前驱体,采用微波法简便合成氮掺杂碳点(N-CDs),其在 592 nm 处呈现明亮橙色荧光。所制备 N-CDs 具有良好生物相容性、优异水溶性、高光学稳定性,并表现出敏感 pH 响应:当 pH 从 9.45 降至 2.45 时...