Three-Dimensional Printing of Cytocompatible, Thermally Conductive Hexagonal Boron Nitride Nanocomposites

Linda M. Guiney, Nikhita D. Mansukhani, Adam E. Jakus, Shay G. Wallace, Ramille N. Shah, Mark C Hersam

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Hexagonal boron nitride (hBN) is a thermally conductive yet electrically insulating two-dimensional layered nanomaterial that has attracted significant attention as a dielectric for high-performance electronics in addition to playing a central role in thermal management applications. Here, we report a high-content hBN-polymer nanocomposite ink, which can be 3D printed to form mechanically robust, self-supporting constructs. In particular, hBN is dispersed in poly(lactic-co-glycolic acid) and 3D printed at room temperature through an extrusion process to form complex architectures. These constructs can be 3D printed with a composition of up to 60% vol hBN (solids content) while maintaining high mechanical flexibility and stretchability. The presence of hBN within the matrix results in enhanced thermal conductivity (up to 2.1 W K-1 m-1) directly after 3D printing with minimal postprocessing steps, suggesting utility in thermal management applications. Furthermore, the constructs show high levels of cytocompatibility, making them suitable for use in the field of printed bioelectronics.

Original languageEnglish
Pages (from-to)3488-3493
Number of pages6
JournalNano Letters
Volume18
Issue number6
DOIs
Publication statusPublished - Jun 13 2018

Fingerprint

3D printers
Boron nitride
boron nitrides
printing
Nanocomposites
nanocomposites
Temperature control
inks
Nanostructured materials
Ink
Extrusion
Printing
Thermal conductivity
flexibility
Polymers
Electronic equipment
thermal conductivity
boron nitride
acids
Acids

Keywords

  • 3D printing
  • bioelectronics
  • hexagonal boron nitride
  • polymer nanocomposite
  • thermal conductivity

ASJC Scopus subject areas

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

Cite this

Three-Dimensional Printing of Cytocompatible, Thermally Conductive Hexagonal Boron Nitride Nanocomposites. / Guiney, Linda M.; Mansukhani, Nikhita D.; Jakus, Adam E.; Wallace, Shay G.; Shah, Ramille N.; Hersam, Mark C.

In: Nano Letters, Vol. 18, No. 6, 13.06.2018, p. 3488-3493.

Research output: Contribution to journalArticle

Guiney, Linda M. ; Mansukhani, Nikhita D. ; Jakus, Adam E. ; Wallace, Shay G. ; Shah, Ramille N. ; Hersam, Mark C. / Three-Dimensional Printing of Cytocompatible, Thermally Conductive Hexagonal Boron Nitride Nanocomposites. In: Nano Letters. 2018 ; Vol. 18, No. 6. pp. 3488-3493.
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