Gold-copper nanostars as photo-thermal agents: Synthesis and advanced electron microscopy characterization

Lourdes Bazán-Díaz, Rubén Mendoza-Cruz, J. Jesús Velázquez-Salazar, Germán Plascencia-Villa, David Romeu, José Reyes-Gasga, Raúl Herrera-Becerra, Miguel José-Yacamán, Grégory Guisbiers

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

Nanoalloys have emerged as multi-functional nanoparticles with applications in biomedicine and catalysis. This work reports the efficient production and the advanced transmission electron microscopy characterization of gold-copper pentagonal nanostars. The morphology of the branches is controlled by the adequate choice of the capping agent. When oleylamine is used rounded nanostars are produced, while pointed nanostars are obtained by using hexadecylamine. Both types of nanostars were proved to be thermally stable and could therefore be used as therapeutic agents in photo-thermal therapies as confirmed by the near-infrared absorption spectra.

Original languageEnglish (US)
Pages (from-to)20734-20742
Number of pages9
JournalNanoscale
Volume7
Issue number48
DOIs
StatePublished - Dec 28 2015
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)

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