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12Â¥: Originally posted by ping_fiu at 2014-11-13 04:48:03
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Monodisperse  I-IL-Au   NPs   were  prepared  by  the   reduction of   HAuCl4 with  sodium   borohydride   (NaBH4)  according   to   the previous  work  [20¨C22] .  In   brief,  firstly   the   fresh   sodium   borohy-dride  solution   (NaBH4,  1  mL,  4.5  mg  mL−1)  was   added   dropwise to   100   mL  aqueous   solution   of   HAuCl4(1   mL,  8.9  mg  mL−1)  under vigorous  stirring   at   room   temperature.  About   15  min,  a  vivid  red colored   solution   was   produced.   Finally,  after  added   the   amino-functionalized   ionic   liquid,  the   gold  colloidal  solution   was   stirred for   another   2  h  to   ensure  self-assembly   of   the   ionic   liquid   onto the   surface  of   gold  nanoparticles.   The   synthesized   I-IL-AuNPs were  purified   by  centrifugation   and   redispersed   in   double-distilled,deionized   water  twice.   The   final  concentration   of   I-IL-Au   NPs were  57.29   nM  calculated   using  Beer¡¯s   law   with  the   extinction coefficients  (¦Å)  of   1.1  ¡Á  107M−1cm−1 for   Au  NPs   of   5.6  ¡À  0.4  nm diameter¡£
2Â¥2013-12-04 19:19:13
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jkcreep

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2Â¥: Originally posted by ½¯º£Áú at 2013-12-04 19:19:13
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Monodisperse  I-IL-Au   NPs   were  prepared  by  the   reduction of   HAuCl4 with  sodium   borohydride   (NaBH4)  according   to   the previous  work   .  In   brief,  firstly   the   fr ...

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3Â¥2013-12-05 21:15:55
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3Â¥: Originally posted by jkcreep at 2013-12-05 21:15:55
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