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Dendrimer-encapsulated nanoparticles (DENs) are nanoparticles ranging from 1.5 to 10 nm that are synthesized by a template approach using dendrimers. Monometallic, bimetallic and semiconductor nanoparticles have been synthesized using this method.[1] The primary use for DEN's is as a catalyst due to their extremely high surface area to volume ratio. Advantages that DENs have over other nanoparticles is that they are monodisperse and easy to make.