Controlled Molecular Assembly via Dynamic Confinement of Solvent

Jiali Zhang, Victoria A. Piunova, Yang Liu, Andy Tek, Qingbo Yang, Jane Frommer, Gang-yu Liu, Joseph Sly

Research output: Contribution to journalArticle

Abstract

Assembly from ultrasmall solution droplets follows a different dynamic from that of larger scales. Using an independently controlled microfluidic probe in an atomic force microscope, subfemtoliter aqueous droplets containing polymers produce well-defined features with dimensions as small as tens of nanometers. The initial shape of the droplet and the concentration of solute within the droplet play significant roles in the final assembly of polymers due to the ultrafast evaporation rate and spatial confinement by the small droplets. These effects are used to control the final molecular assembly in terms of feature geometry and distribution and packing of individual molecules within the features. This work introduces new means of control over molecular assembly, bringing us closer to programmable synthesis for chemistry and materials science. The outcomes pave the way for three-dimensional (3D) nanoprinting in additive manufacturing.

Original languageEnglish (US)
Pages (from-to)6232-6237
Number of pages6
JournalJournal of Physical Chemistry Letters
Volume9
Issue number21
DOIs
StatePublished - Nov 1 2018

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assembly
Polymers
3D printers
evaporation rate
polymers
materials science
Materials science
solutes
Microfluidics
manufacturing
microscopes
chemistry
Evaporation
Microscopes
probes
synthesis
geometry
Molecules
Geometry
molecules

ASJC Scopus subject areas

  • Materials Science(all)
  • Physical and Theoretical Chemistry

Cite this

Zhang, J., Piunova, V. A., Liu, Y., Tek, A., Yang, Q., Frommer, J., ... Sly, J. (2018). Controlled Molecular Assembly via Dynamic Confinement of Solvent. Journal of Physical Chemistry Letters, 9(21), 6232-6237. https://doi.org/10.1021/acs.jpclett.8b02442

Controlled Molecular Assembly via Dynamic Confinement of Solvent. / Zhang, Jiali; Piunova, Victoria A.; Liu, Yang; Tek, Andy; Yang, Qingbo; Frommer, Jane; Liu, Gang-yu; Sly, Joseph.

In: Journal of Physical Chemistry Letters, Vol. 9, No. 21, 01.11.2018, p. 6232-6237.

Research output: Contribution to journalArticle

Zhang, J, Piunova, VA, Liu, Y, Tek, A, Yang, Q, Frommer, J, Liu, G & Sly, J 2018, 'Controlled Molecular Assembly via Dynamic Confinement of Solvent', Journal of Physical Chemistry Letters, vol. 9, no. 21, pp. 6232-6237. https://doi.org/10.1021/acs.jpclett.8b02442
Zhang, Jiali ; Piunova, Victoria A. ; Liu, Yang ; Tek, Andy ; Yang, Qingbo ; Frommer, Jane ; Liu, Gang-yu ; Sly, Joseph. / Controlled Molecular Assembly via Dynamic Confinement of Solvent. In: Journal of Physical Chemistry Letters. 2018 ; Vol. 9, No. 21. pp. 6232-6237.
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