Multi-level assemblies of lead sulphide nanorods

Qingyi Lu, Feng Gao, Sridhar Komarneni

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

A new concept of multi-level assemblies of nanorod-based structures has been proposed, which could give new insight into the construction of nanorod-based complex structures from the bottom up. Multi-level architectures of complex lead sulphide (PbS) nanorod-based structures have been realized by a simple and general amino acid-mediated approach. First-level structure (multi-arm horn-like structure), second-level structure (bi-pyramid structure formed by several horn-like structures), and third-level structure (multi-pyramid structure formed by several pyramid-like structures) can be synthesized with the assistance of different amino acids: aspartic acid, serine, and histidine, respectively. The amino acids have several functional groups, such as-NH2 and-COOH, which have strong abilities for coordination with the metal ions, and might provide reaction sites by coordinating with metal ions to initiate and then confine the assemblies of the PbS nanorods. This amino acid-mediated method provides a possibility of studying the formation and assembly mechanisms from the bottom up and might open a door to constructing complex nanorod-based structures at different levels.

Original languageEnglish (US)
Pages (from-to)2574-2580
Number of pages7
JournalNanotechnology
Volume17
Issue number10
DOIs
StatePublished - May 28 2006

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Multi-level assemblies of lead sulphide nanorods'. Together they form a unique fingerprint.

Cite this