Host-guest carbon dots as high-performance fluorescence probes

doi:10.1039/c7tc01574g

CORC > 北京大学 > 化学与分子工程学院

	Host-guest carbon dots as high-performance fluorescence probes
	Wang, Ping ; Liu, Jia-Hui ; Gao, Haidi ; Hu, Yin ; Hou, Xiaofang ; LeCroy, Gregory E. ; Bunker, Christopher E. ; Liu, Yuanfang ; Sun, Ya-Ping
刊名	JOURNAL OF MATERIALS CHEMISTRY C
	2017
关键词	MICROWAVE-ASSISTED PYROLYSIS ONE-STEP SYNTHESIS QUANTUM DOTS PHOTOPHYSICAL PROPERTIES NILE BLUE NANODOTS PHOTOLUMINESCENCE FUNCTIONALIZATION CELLS
DOI	10.1039/c7tc01574g
英文摘要	Host-guest carbon dots (G@CDots) represent a new platform in the rapidly advancing and expanding research field of carbon ''quantum'' dots or carbon dots, enabling the development of novel carbon hybrid nanostructures of unique and/or advantageous properties and capabilities beyond those of conventional carbon dots. In this study, the red/near-IR emissive dye nile blue (NB) was selected as the guest, and NB@CDots were prepared in a microwave-assisted one-pot thermal carbonization synthesis with oligomeric polyethylene glycols (PEGs) as the precursor and also surface passivation species in the resulting host-guest dots. The NB@CDots exhibited unique and/or favorable characteristics, including especially the bright red/near-IR fluorescence emissions, with the observed fluorescence quantum yield due to the guest nile blue species more than an order of magnitude higher than that of free nile blue molecules, all in aqueous solutions. The higher fluorescence intensities were coupled with a longer fluorescence lifetime, and also accompanied by excellent photochemical stability, making the NB@CDots high-performance fluorescence probes for bioimaging-sensing and related applications. Indeed, their potential in this regard was explored and demonstrated in the fluorescence imaging of live stem cells. The NB@CDots were also evaluated in cytotoxicity assays, and the results suggested their being nontoxic. Excellent opportunities in further development of the host-guest carbon dots platform for high-performance yet nontoxic fluorescence probes are discussed.; Air Force Office of Scientific Research through the program of Dr Charles Lee and Dr Kenneth Caster; Natural Science Foundation of China (NSFC) [21301015]; South Carolina Space Grant Consortium; China Scholarship Council; SCI(E); ARTICLE; 25; 6328-6335; 5
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/462343]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Wang, Ping,Liu, Jia-Hui,Gao, Haidi,et al. Host-guest carbon dots as high-performance fluorescence probes[J]. JOURNAL OF MATERIALS CHEMISTRY C,2017.
APA	Wang, Ping.,Liu, Jia-Hui.,Gao, Haidi.,Hu, Yin.,Hou, Xiaofang.,...&Sun, Ya-Ping.(2017).Host-guest carbon dots as high-performance fluorescence probes.JOURNAL OF MATERIALS CHEMISTRY C.
MLA	Wang, Ping,et al."Host-guest carbon dots as high-performance fluorescence probes".JOURNAL OF MATERIALS CHEMISTRY C (2017).