Graphene　oxide　sheets　have　been　used　as　a　kind　of　plane　stabilizing　agent　to　prepare　Ag　nanoparticle　colloids.　The　utilization　of　graphene　oxide　has　effects　on　the　size　of　Ag　nanoparticles　and　can　enhance　the　stability　of　the　as-prepared　colloids.　These　graphene　oxide　stabilized　Ag　nanoparticles　possess　relatively　uncapped　surface,　which　behave　good　catalysis　activity.　Furthermore,　we　also　prepared　graphene　oxide-mediated　Au　and　Pt　nanoparticle　colloids　through　galvanic　replacement　reactions　using　graphene　oxide-Ag　nanoparticles　as　templates.　(C)　2012　Elsevier　B.V.　All　rights　reserved.