Application of PEGylated graphene quantum dots in cell imaging. (27th July 2019)

• Record Type: Journal Article
• Authors: Wang, Kai-Qi; Li, Kun-Rong; Yu, Bing; Shen, You-Qing; Cong, Hai-Lin
• Is Part Of: Ferroelectrics. Volume 547(2019)
• Page Start: 21
• Page End: 26
• Publication Date: 2019-07-27
• Subjects: Polyethylene glycol -- graphene quantum dots -- cell imaging; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2019.1592479
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: Polyethylene glycol (PEG) functionalized graphene quantum dots (GQDs-PEG) with average particle size of 2.1 nm were successfully prepared by hydrothermal method with PEG as surface passivation agent. The quantum yield (QY) of GQDs-PEG was 3.7%and its physiological stability was significantly better than that of GQDs. The cell viability assay results showed that GQDs-PEG display no obvious toxicity to cells. The results of cell fluorescence imaging showed that GQDs-PEG could enter the whole cell with high fluorescence recognition.