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学科主题物理化学
Polyaniline sheathed electrospun nanofiber bar for in vivo extraction of trace acidic phytohormones in plant tissue
Wu, Qian1,2; Wu, Dapeng1; Guan, Yafeng1; Wu DP(吴大朋); Guan YF(关亚风)
关键词In Vivo Solid-phase Micro-extraction Polyaniline Electrospun Nanofibers Phytohormones Aloe Leaf
刊名JOURNAL OF CHROMATOGRAPHY A
2014-05-16
DOI10.1016/j.chroma.2014.03.055
1342期:1页:16-23
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences
类目[WOS]Biochemical Research Methods ; Chemistry, Analytical
研究领域[WOS]Biochemistry & Molecular Biology ; Chemistry
关键词[WOS]SOLID-PHASE MICROEXTRACTION ; MASS-SPECTROMETRY ; BIOLOGICAL-FLUIDS ; POLYMER BLENDS ; FIBERS ; PHARMACEUTICALS ; CONDUCTIVITY ; FISH
英文摘要For in vivo extraction of trace and polar components in tissues, extraction materials should be biocompatible, highly permeable to matrix and have high extraction capacity for polar and ionic compounds. In this study, nanofibers (similar to 200 nm) with rough polyaniline (PAn) sheath were prepared successfully for the first time by coaxial electrospinning and coelectrospun polymer sacrificing method. The nanofibers (0.5 mg) were then compressed into tiny bar (Phi 1 mm x 2 mm) and inserted directly into the aloe leaf for in vivo extraction of trace phytohormones. Due to the large surface area (13.97 m(2)/g) of nanofibers and large through pores formed between fibers, high extraction capacity (up to 10 mu g/bar) and permeability to tissue matrix of the tiny bar can be obtained. Moreover, PAn sheath has high adsorption equilibrium constants (10(7)-10(8) mL/mol) for acidic phytohormones in aloe leaf. Four phytohormones were detected by in vivo extraction with a spatial resolution of 3-8 mm(3), temporal resolution of 20 min, and limit of detection down to 60 pg/g. The quantification results were well met with that by traditional in vitro organic solvent extraction. (C) 2014 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000335804500003
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/144137
专题中国科学院大连化学物理研究所
通讯作者Wu DP(吴大朋); Guan YF(关亚风)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Grad Sch, Beijing 100039, Peoples R China
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Wu, Qian,Wu, Dapeng,Guan, Yafeng,et al. Polyaniline sheathed electrospun nanofiber bar for in vivo extraction of trace acidic phytohormones in plant tissue[J]. JOURNAL OF CHROMATOGRAPHY A,2014,1342(1):16-23.
APA Wu, Qian,Wu, Dapeng,Guan, Yafeng,吴大朋,&关亚风.(2014).Polyaniline sheathed electrospun nanofiber bar for in vivo extraction of trace acidic phytohormones in plant tissue.JOURNAL OF CHROMATOGRAPHY A,1342(1),16-23.
MLA Wu, Qian,et al."Polyaniline sheathed electrospun nanofiber bar for in vivo extraction of trace acidic phytohormones in plant tissue".JOURNAL OF CHROMATOGRAPHY A 1342.1(2014):16-23.
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