One‐Step Microwave Approach to Generate Carbon Dots/Gelatin Composite with Both Thermoresponsive Sol–Gel Transition and Fluorescence Properties,Macromolecular Materials and Engineering

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One‐Step Microwave Approach to Generate Carbon Dots/Gelatin Composite with Both Thermoresponsive Sol–Gel Transition and Fluorescence Properties
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-03-30 , DOI: 10.1002/mame.202000035
Xia Wang ₁ , Hui Liu ₁ , Wencheng Wu ₁ , Yanfei Xiong ₂ , Wei Chen ₁ , Kaiyuan Cao ₁ , Yifeng Wang ₁ , Yanjun Chen ₁

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Carbon dots (CDs) have drawn considerable research interest for their attractive applications in sensors, bioimaging, and photonic devices. Here, an aqueous gelatin solution is employed as the only reactant to directly generate a CDs/gelatin composite through a green and simple one‐step microwave approach. The resulting CDs/gelatin composite owns a typical excitation‐dependent photoluminescence property that comes from CDs, which can be potentially applied for multicolor fluorescence bioimaging. More importantly, the CDs/gelatin composite possesses a thermoresponsive sol–gel transition property that is associated with gelatin, which can be exquisitely enlisted to fabricate CDs/gelatin gel beads and fluorescent gel patterns. Also the release of CDs from the gel beads can be triggered by the thermoresponsive sol–gel transition. Thus, for the first time this study creates the CDs/gelatin composite with both thermoresponsive sol–gel transition and fluorescence properties, which is promising for applications in stimuli‐responsive materials, nanocomposites, controlled release, and fluorescence imaging.

中文翻译：

一步法生成具有热响应溶胶-凝胶转变和荧光性质的碳点/明胶复合材料

碳点（CD）由于其在传感器，生物成像和光子设备中的诱人应用而吸引了相当多的研究兴趣。在这里，明胶水溶液被用作唯一的反应物，通过绿色且简单的一步式微波方法直接生成CD /明胶复合物。所得的CD /明胶复合材料具有CD产生的典型的依赖于激发的光致发光特性，可潜在地应用于多色荧光生物成像。更重要的是，CD /明胶复合材料具有与明胶相关的热响应溶胶-凝胶转变特性，可以很好地用于制造CD /明胶凝胶珠和荧光凝胶图案。凝胶珠上CD的释放也可以由热响应性溶胶－凝胶转变触发。从而，

更新日期：2020-03-30

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