Nanomaterials, Volume 10, Issue 6
June 2020 - 237 articles
Porous gold nanoparticles (PGNs) are usually prepared in an immobilized form on a solid substrate, which is not practical in some applications. Now, Juhász et.al. report a simple method for the preparation and stabilization of mesoporous gold particles of a few hundred nanometers in size in aqueous suspension. First, Au–Ag bimetallic particles were fabricated on CaF2 substrate. Second, the particles were de-alloyed and detached in a single step by using nitric acid. The resulting suspended PGNs display a narrow dipole plasmon peak at 1450 nm in the NIR; thus, they are ideal candidates for biomedical applications, e.g., for photothermal therapy.
Cover Story: Porous gold nanoparticles (PGNs) are usually prepared in an immobilized form on a solid substrate, which is not practical in some applications. Now, Juhász et.al. report a simple method for the preparation and stabilization of mesoporous gold particles of a few hundred nanometers in size in aqueous suspension. First, Au–Ag bimetallic particles were fabricated on CaF2 substrate. Second, the particles were de-alloyed and detached in a single step by using nitric acid. The resulting suspended PGNs display a narrow dipole plasmon peak at 1450 nm in the NIR; thus, they are ideal candidates for biomedical applications, e.g., for photothermal therapy. View this paper - Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
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