01310nas a2200169   4500008004100000022001400041245016200055210006900217260007300286300001200359490000800371520056500379100002000944700001900964700003000983856012701013       2010                        eng d  a0009-261400aHalide ion controlled shape dependent gold nanoparticle synthesis with tryptophan as reducing agent: enhanced fluorescent properties and white light emission0 aHalide ion controlled shape dependent gold nanoparticle synthesi  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a271-2750 v4843 a<p>We report the synthesis of Au nanoparticles in presence of two surfactants cetyltrimethyl ammonium chloride (CTAC) and cetyltrimethyl ammonium bromide (CTAB) by reducing Au(3+) ions with tryptophan. Interestingly, triangular shaped particles were seen to form in presence of CTAB, while spherical nanoparticles resulted with CTAC. The highlight of this result is the white light emission from the Au triangles obtained when CTAB is used. These results are supported by lifetime measurements and fluorescence. (C) 2009 Elsevier B. V. All rights reserved.</p>1 aKasture, Manasi1 aSastry, Murali1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/halide-ion-controlled-shape-dependent-gold-nanoparticle-synthesis-tryptophan-reducing-0