Ultra-fast microwave aided synthesis of gold nanocages and structural maneuver studies

Sreejith Raveendran, Anindito Sen, Toru Maekawa, D. Sakthi Kumar

Research output: Contribution to journalArticle

Abstract

Gold nanocages (AuNcgs) are well-studied, hollow, metallic nanostructures that have fascinated researchers in the fields of nanotechnology, materials science, photoelectronics, biotechnology, and medical science for the last decade. However, the time-consuming synthesis of AuNcgs has limited their widespread use in materials science and nano-biotechnology. A novel, ultra-fast, simple, and highly convenient method for the production of AuNcgs using microwave heating is demonstrated herein. This quick method of AuNcg synthesis requires mild laboratory conditions for large-scale production of AuNcgs. The microwave heating technique offers the advantage of precise mechanical control over the temperature and heating power, even for the shortest reaction period (i.e., seconds). Microwave-synthesized AuNcgs were compared with conventionally synthesized AuNcgs. Structural maneuver studies employing the conventionally produced AuNcgs revealed the formation of screw dislocations and a shift in the lattice plane. Detailed characterization of the microwave-generated AuNcgs was performed using high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), X-ray powder diffraction (XRD), and spectroscopic techniques. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1078-1091
Number of pages14
JournalNano Research
Volume10
Issue number3
DOIs
Publication statusPublished - 23 Dec 2016

Keywords

  • gold nanocages
  • microwave technology
  • nanoboxes
  • nanocages
  • screw dislocation
  • ultra-fast

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