One-step preparation of nitrogen-doped graphene quantum dots from oxidized debris of graphene oxide
One-step preparation of nitrogen-doped graphene quantum dots from oxidized debris of graphene oxide
复制标题
氧化石墨烯氧化碎片一步制备氮掺杂石墨烯量子点
DOI：
10.1039/c2tb00189f
复制
发表时间：
2013-01-01
影响因子：
7
通讯作者：
Rong, Jianhua
中科院分区：
文献类型：
--
作者：
Hu, Chaofan;Liu, Yingliang;Rong, Jianhua
通过在氨存在下对氧化石墨烯进行水热处理，获得了高度蓝色发光的氮掺杂石墨烯量子点（N-GQD）。N-GQD的产率为约8.7重量%。在340 nm的激发波长下，实现了最大24.6%的高量子产率。将其应用于HeLa细胞的生物成像，显示出明亮的发光和良好的生物相容性。
Highly blue-luminescent nitrogen-doped graphene quantum dots (N-GQDs) are obtained by hydrothermal treatment of graphene oxide in the presence of ammonia. The yield of N-GQDs is about 8.7% in weight. A high quantum yield of maximum 24.6% at an excitation wavelength of 340 nm is achieved. They are applied for bioimaging of HeLa cells, and showed bright luminescence and excellent biocompatibility.