Graphene Quantum Dots - from Spectroscopic Performance to 3d Printing Applications and Interaction Studies with Normal and Cancer Cells

In the present study, different types of commercially available graphene quantum dots (GQDs were investigated to understand their spectroscopic properties. Their morphological and size analyse were also performed. Their mechanism of action in radical photopolymerization processes was evaluated. The obtained materials proved to be useful in developing efficient photoinitiating systems for 3D printing applications. In addition, the cytotoxicity of GQDs was studied and their effects on living cells were investigated. We demonstrated that GQDs not only can act as efficient photoinitiators, but as constituents of hydrogels express very low toxicity and may interact with cells. The latter creates the possibility of studying them in the future as useful modern biosensors.

本研究中，针对不同类型的商用石墨烯量子点（GQDs）进行了探究，以理解其光谱性质。对其形貌和尺寸进行了分析。同时，评估了其在自由基光聚合过程中的作用机制。所得材料在开发高效光引发系统以应用于3D打印方面显示出其用途。此外，对GQDs的细胞毒性进行了研究，并探究了其对活细胞的影响。我们证实，GQDs不仅能作为高效的光引发剂，作为水凝胶的组成成分时，其毒性极低，且可能与细胞相互作用。后者为未来将其作为有用的现代生物传感器进行研究提供了可能性。