Aerosol synthesis of cargo-filled graphene nanosacks

Yantao Chen, Fei Guo, Ashish Jachak, Sang Pil Kim, Dibakar Datta, Jingyu Liu, Indrek Kulaots, Charles Vaslet, Hee Dong Jang, Jiaxing Huang, Agnes Kane, Vivek B. Shenoy*, Robert H. Hurt

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

161 Scopus citations

Abstract

Water microdroplets containing graphene oxide and a second solute are shown to spontaneously segregate into sack-cargo nanostructures upon drying. Analytical modeling and molecular dynamics suggest the sacks form when slow-diffusing graphene oxide preferentially accumulates and adsorbs at the receding air-water interface, followed by capillary collapse. Cargo-filled graphene nanosacks can be nanomanufactured by a simple, continuous, scalable process and are promising for many applications where nanoscale materials should be isolated from the environment or biological tissue.

Original languageEnglish (US)
Pages (from-to)1996-2002
Number of pages7
JournalNano letters
Volume12
Issue number4
DOIs
StatePublished - Apr 11 2012

Keywords

  • Graphene
  • biocompatibility
  • core-shell structures
  • encapsulation
  • folding
  • graphene oxide

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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