Charge-transfer-induced suppression of galvanic replacement and synthesis of (Au@Ag)@Au double shell nanoparticles for highly uniform, robust and sensitive bioprobes

Dao Thi Ngoc Anh, Prerna Singh, Cheshta Shankar, Derrick Mott, Shinya Maenosono

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

The synthesis of double shell (Au@Ag)@Au nanoparticles is accomplished through suppression of the galvanic replacement reaction caused by an electron transfer phenomenon. The resulting nanoparticles are monodisperse with a thin and uniform second Au shell. These particles are ultimately expected to lead to sensitive probes for biomolecular sensing and diagnostics.

Original languageEnglish
Article number073107
JournalApplied Physics Letters
Volume99
Issue number7
DOIs
Publication statusPublished - 2011 Aug 15
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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