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In this work, we fabricated a monodisperse nanocomposite by coating gold nanorods(Au NRs) with a layer of biocompatible, stable carbon, obtaining Au NR@Carbon core–shell nanocapsules, which without any functionalization could be used as a molecule loading material due to its high surface areas. In this system, the Au NR core had a high-absorption cross section for conversion of near-infrared light to heat, which could be explored for local hyperthermia. The carbon shell, which was biocompatible and stable even under concentrated acidic and alkaline conditions, was able to adsorb molecules with p–p interactions or electrostatic interactions. In comparison with Au NR@Si O2, Au NR@Carbon nanocapsules demonstrate the following merits:(1) simple and green synthesis method,(2) far more stable with respect to high-temperature stability and(3) larger molecule loading capacity,which indicate great potential in the biomedical applications.
In this work, we fabricated a monodisperse nanocomposite by coating gold nanorods (Au NRs) with a layer of biocompatible, stable carbon, obtaining Au NR @ Carbon core-shell nanocapsules, which without any functionalization could be used as a molecule loading material due to The high surface areas. In this system, the Au NR core had a high-absorption cross section for conversion of near-infrared light to heat, which could be explored for local hyperthermia. The carbon shell, which was biocompatible and stable even under concentrated acidic and alkaline conditions, was able to adsorb molecules with p-p interactions or electrostatic interactions. In NR @ Si O2, Au NR @ Carbon nanocapsules demonstrate the following merits: (1) far more stable with respect to high-temperature stability and (3) larger molecule loading capacity, which indicates great potential in the biomedical applications.