News Column

Data from Graduate School Advance Knowledge in Nanofibers

June 13, 2014

By a News Reporter-Staff News Editor at Science Letter -- Researchers detail new data in Nanofibers. According to news reporting originating from Beijing, People's Republic of China, by NewsRx correspondents, research stated, "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."

Our news editors obtained a quote from the research from Graduate School, "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."

According to the news editors, the research concluded: "The quantification results were well met with that by traditional in vitro organic solvent extraction."

For more information on this research see: Polyaniline sheathed electrospun nanofiber bar for in vivo extraction of trace acidic phytohormones in plant tissue. Journal of Chromatography A, 2014;1342():16-23. Journal of Chromatography A can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier -; Journal of Chromatography A -

The news editors report that additional information may be obtained by contacting Q. Wu, Chinese Academy Sci, Dalian Inst Chem Phys, Grad Sch, Beijing 100039, People's Republic of China. Additional authors for this research include D.P. Wu and Y.F. Guan (see also Nanofibers).

Keywords for this news article include: Asia, Beijing, Nanotechnology, Emerging Technologies, People's Republic of China

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Source: Science Letter

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