01572nas a2200205   4500008004100000022001400041245012600055210006900181260011000250300001600360490000600376520070600382100002301088700002001111700002601131700002601157700002101183700003001204856013201234       2013                        eng d  a2046-206900aSurfactant-free synthesis of anisotropic gold nanostructures: can dicarboxylic acids alone act as shape directing agents?0 aSurfactantfree synthesis of anisotropic gold nanostructures can   aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAUG  a21641-216470 v33 a<p>The present study describes the synthesis of gold nanostructures using different dicarboxylic (viz. oxalic, malonic, succinic, glutaric and adipic) acids as reducing agents in the absence of any other additives or surfactants. Various anisotropic structures such as kites, tadpoles, triangular/hexagonal plates, and twinned particles were seen to evolve depending on the molar ratio of dicarboxylic acid to HAuCl4 used. It was also demonstrated that gold nanostructure formation is hampered as the chain length/distance between two carboxylic acid groups increases. Among the various structures obtained the kite like structures displayed the largest surface enhanced Raman enhancement factors.</p>1 aKumar, D., V. Ravi1 aKumavat, S., R.1 aChamundeswari, V., N.1 aPatra, Partha, Pratim1 aKulkarni, A., A.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/surfactant-free-synthesis-anisotropic-gold-nanostructures-can-dicarboxylic-acids-alone-act-0