Silica cross-linked nanoparticles encapsulating fluorescent conjugated dyes for energy transfer-based white light emission and porphyrin sensing

	Silica cross-linked nanoparticles encapsulating fluorescent conjugated dyes for energy transfer-based white light emission and porphyrin sensing
	Gai F. Y.; Zhou T. L.; Zhang L. G.; Li X.; Hou W. J.; Yang X. C.; Li Y. T.; Zhao X. G.; Xu D.; Liu Y. L.; Huo Q. S.
	2012
发表期刊	Nanoscale
ISSN	2040-3364
卷号	4 期号:19 页码:6041-6049
摘要	This work demonstrated that water-soluble fluorescent hybrid materials can be successfully synthesized by use of silica cross-linked micellar nanoparticles (SCMNPs) as scaffolds to encapsulate fluorescent conjugated dyes for pH sensing, porphyrin sensing and tunable colour emission. Three dyes were separately encapsulated inside SCMNPs (short to dye-SCMNPs). Each of the dye-SCMNPs indicated longer lifetime in water than that of free dye dissolved in organic solvent. The 7-(hexadecyloxy) coumarin-3-ethylformate (HCE) encapsulated inside SCMNPs (HCE-SCMNPs) exhibited fluorescence quenching by pH change in aqueous media. Furthermore, it was confirmed that the radiative and nonradiative energy transfer processes both occurred between HCE-SCMNPs and tetraphenyl-porphyrin (TPP), which were used to synthesize the water-soluble TPP sensor. Significantly, HCE-SCMNPs doped with 5,12-dicotyl-quinacridone (8CQA) and TPP showed water-soluble white light emission (CIE (0.29, 0.34)) upon singlet excitation of 376 nm due to colour adjustment of 8CQA and energy transfer from HCE (donor) to TPP (acceptor).
收录类别	SCI ; EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/34487
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Gai F. Y.,Zhou T. L.,Zhang L. G.,et al. Silica cross-linked nanoparticles encapsulating fluorescent conjugated dyes for energy transfer-based white light emission and porphyrin sensing[J]. Nanoscale,2012,4(19):6041-6049.
APA	Gai F. Y..,Zhou T. L..,Zhang L. G..,Li X..,Hou W. J..,...&Huo Q. S..(2012).Silica cross-linked nanoparticles encapsulating fluorescent conjugated dyes for energy transfer-based white light emission and porphyrin sensing.Nanoscale,4(19),6041-6049.
MLA	Gai F. Y.,et al."Silica cross-linked nanoparticles encapsulating fluorescent conjugated dyes for energy transfer-based white light emission and porphyrin sensing".Nanoscale 4.19(2012):6041-6049.