Hierarchically Structured Porous Nitrogen-Doped Carbon for Highly Selective CO2 Capture

	Hierarchically Structured Porous Nitrogen-Doped Carbon for Highly Selective CO2 Capture
	Li, D.; Y. L. Chen; M. Zheng; H. F. Zhao; Y. F. Zhao and Z. C. Sun
	2016
发表期刊	Acs Sustainable Chemistry & Engineering
卷号	4 期号:1
摘要	Accurate quantitation of intracellular pH (pH(i)) is of great importance in revealing the cellular activities and early warning of diseases. A series of fluorescence-based nano-bioprobes composed of different nanoparticles or/and dye pairs have already been developed for pH(i) sensing. Till now, biological autofluorescence background upon UV-Vis excitation and severe photo-bleaching of dyes are the two main factors impeding the accurate quantitative detection of pHi. Herein, we have developed a selfratiometric luminescence nanoprobe based on frster resonant energy transfer (FRET) for probing pH(i), in which pH-sensitive fluorescein isothiocyanate (FITC) and upconversion nanoparticles (UCNPs) were served as energy acceptor and donor, respectively. Under 980 nm excitation, upconversion emission bands at 475 nm and 645 nm of NaYF4: Yb3+, Tm3+ UCNPs were used as pH(i) response and selfratiometric reference signal, respectively. This direct quantitative sensing approach has circumvented the traditional software-based subsequent processing of images which may lead to relatively large uncertainty of the results. Due to efficient FRET and fluorescence background free, a highly-sensitive and accurate sensing has been achieved, featured by 3.56 per unit change in pH(i) value 3.0-7.0 with deviation less than 0.43. This approach shall facilitate the researches in pH(i) related areas and development of the intracellular drug delivery systems.
文章类型	期刊
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/181722/57008
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Li, D.,Y. L. Chen,M. Zheng,et al. Hierarchically Structured Porous Nitrogen-Doped Carbon for Highly Selective CO2 Capture[J]. Acs Sustainable Chemistry & Engineering,2016,4(1).
APA	Li, D.,Y. L. Chen,M. Zheng,H. F. Zhao,&Y. F. Zhao and Z. C. Sun.(2016).Hierarchically Structured Porous Nitrogen-Doped Carbon for Highly Selective CO2 Capture.Acs Sustainable Chemistry & Engineering,4(1).
MLA	Li, D.,et al."Hierarchically Structured Porous Nitrogen-Doped Carbon for Highly Selective CO2 Capture".Acs Sustainable Chemistry & Engineering 4.1(2016).

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Hierarchically Struc（409KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	浏览下载