Modulation of a fluorescence switch based on photochromic spirooxazine in composite organic nanoparticles

doi:10.1088/0957-4484/18/14/145707

CORC > 化学研究所 > 中国科学院化学研究所

	Modulation of a fluorescence switch based on photochromic spirooxazine in composite organic nanoparticles
	Sheng, Xiaohai ; Peng, Aidong ; Fu, Hongbing ; Liu, Yuanyuan ; Zhao, Yongsheng ; Ma, Ying ; Yao, Jiannian
刊名	NANOTECHNOLOGY
	2007-04-11
卷号	18 期号:14
ISSN号	0957-4484
DOI	10.1088/0957-4484/18/14/145707
英文摘要	We describe a versatile and convenient approach to achieve fluorescence modulation by the preparation of composite nanoparticles (CNPs), based on photochromic 5-methoxy-1,3,3-trimethyl-9'-hydroxyspiroindolinenaphthoxazine (SO), fluorescent 4-(dicyanomethylene)-2-methyl-6-(p-dimethyl- aminostyryl)-4H-pyran (DCM), and emissive-assistant 1,3- bis( pyrene) propane (BPP) molecules, employing doping techniques. The mechanism of the fluorescence switch is the intermolecular energy transfer as supported by both steady-state and time-resolved spectroscopy results. The addition of BPP not only enhances the contrast of the fluorescence signal between the 'ON' and 'OFF' state, but also provides a convenient way to tune the excitation wavelength for reading the fluorescence. High-contrast ON/OFF (20:1) fluorescence switching is successfully implemented in the CNPs and also in a more practical PVA film loaded with the CNPs. This system may represent an alternative to the covalent system in potentially rewritable high-density optical data or image storage utilizing luminescence intensity readout schemes.
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000245267400032
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/60903]
专题	中国科学院化学研究所
通讯作者	Fu, Hongbing
作者单位	1.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Sheng, Xiaohai,Peng, Aidong,Fu, Hongbing,et al. Modulation of a fluorescence switch based on photochromic spirooxazine in composite organic nanoparticles[J]. NANOTECHNOLOGY,2007,18(14).
APA	Sheng, Xiaohai.,Peng, Aidong.,Fu, Hongbing.,Liu, Yuanyuan.,Zhao, Yongsheng.,...&Yao, Jiannian.(2007).Modulation of a fluorescence switch based on photochromic spirooxazine in composite organic nanoparticles.NANOTECHNOLOGY,18(14).
MLA	Sheng, Xiaohai,et al."Modulation of a fluorescence switch based on photochromic spirooxazine in composite organic nanoparticles".NANOTECHNOLOGY 18.14(2007).