No. Gold nanoparticles appear to be a totally artificial state of gold that does not occur in nature. The interest is in plasmon-mediated synthesis, apparently, a way of getting light to take part in chemical reactions. But there is zero evidence of these things appearing in nature and until there is, there is no basis for you to claim gold may have relevance to abiogenesis. But plasmon-induced synthesis is something I'd like to know more about, I must admit.