2011年12月2日 · Doping GQDs with heteroatoms provides an attractive means of effectively tuning their intrinsic properties and exploiting new phenomena for advanced device applications. Herein we report a simple electrochemical approach to luminescent and electrocatalytically active nitrogen-doped GQDs (N-GQDs) with oxygen-rich functional groups.

石墨烯量子点（GQD）是尺寸小于100nm的石墨烯纳米颗粒。由于其优异的性能，例如低毒性，稳定的光致发光，化学稳定性和明显的量子限制效应，GQD被认为是用于生物，光电，能源和环境应用的新型材料。

2024年5月6日 · Our study suggests that nitrogen doping in GQDs can significantly increase the adsorption strength for these hazardous gases. Our in-depth analysis proposes that adsorption is governed by the presence of hydrogen bonds between the hydrogen in the adsorbates and the nitrogen in the adsorbents.

2025年3月17日 · In this study, nitrogen-doped graphene quantum dots (N-GQDs) were synthesized, characterized, and applied to the assembly of label-free electrochemical immunosensors for the detection of antibodies against the receptor-binding domain (RBD) of the SARS-CoV-2 virus.

In this project, we have successfully synthesized N-GQDs with the one-pot pyrolysis method with tyrosine and glutamic acid. The N-GQDs had a narrow distribution and emitted strong green fluorescence. Most of the GQDs prepared by pyrolysis used chain-shaped precursors for carbonization to form a hexatomic ring structure.

2013年6月19日 · 国家纳米科学中心宫建茹研究组以氧化石墨烯为前驱体，n,n-二甲基甲酰胺作氮源，合成了氮掺杂的石墨烯量子点(n-gqd)。该n-gqd纳米材料在近红外飞秒激光激发下发出很强的荧光，双光子吸收截面高达48000gm，远远超过了有机染料分子，为碳材料中所报道的最高值 ...

2023年4月1日 · Graphene quantum dots (GQDs) are a zero-dimensional graphene nanomaterial with size less than 100 nm and thickness less than 10 layers (Chen et al., 2018). Since GQDs shows a tunable photoluminescence (PL) emission, most of researchers have focused on application of GQDs in PL-related fields.

2018年12月1日 · Graphene quantum dots (GQDs) have been widely studied in recent years due to its unique structure-related properties, such as optical, electrical and optoelectrical properties. GQDs are considered new kind of quantum dots (QDs), as they are chemically and physically stable because of its intrinsic inert carbon property.

2020年2月2日 · 石墨烯量子点（GQDs）是以碳为基础的纳米粒子，具有优异的化学、物理和生物特性，使其在纳米医学的广泛应用中脱颖而出。 GQDs独特的电子结构赋予了这些纳米材料强大和可调的光致发光（PL）功能，用于荧光生物成像和生物传感；高负载能力的芳香族化合物的小分子药物传递；吸收入射辐射的能力，用于光热和光动力疗法的杀灭癌症技术。 【成果简介】 近日， 华盛顿大学张米琴教授团队（通讯作者） 带领下，首先综述了GQDs的理化性质、光学性质、 …

2022年8月11日 · UV induced DNA damage can lead to the development of skin cancer, skin aging and cell death. In this study, we fabricated a fluorescence-based biosensor that can be applied to the detection of DNA damage caused by UV radiation with the help of nitrogen doped graphene quantum dots (N-GQDs) as the probe material. In