▎ 摘　　要

We synthesized and characterized blue-color-emitting graphene quantum dots (BGQDs) which is better than that of other GQDs synthesized from organic molecules. We investigated the biocompatibility of BGQDs with cells and erythrocytes. Evaluation of epithelial carcinoma cancer cells indicated that most cells successfully took up BGQDs and toxicity testing showed no effect on cell viability. We also examined alterations in deformability and aggregation of human erythrocytes exposed to BGQDs at different concentrations and incubation times. These results suggest that BGQDs are biocompatible and do not cause cell membrane damage, and thus, are promising nanomaterials for various medical diagnoses and treatments. (c) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.