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Direct Laser Writing of Photoresponsive Colloids for Microscale Patterning of 3D Porous Structures

Journal Article · · Advanced Materials
 [1];  [2];  [3];  [4];  [5];  [5]
  1. Univ. of Illinois at Urbana-Champaign, IL (United States); University of Illinois
  2. Univ. of Illinois at Urbana-Champaign, IL (United States); Univ. of California, Irvine, CA (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); United Technologies Research Center, East Hartford, CT (United States)
  4. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  5. Univ. of Illinois at Urbana-Champaign, IL (United States)

3D patterning of colloidal structures is enabled by the phototriggered aggregation of photoresponsive colloids. Here, we use direct laser writing to locally control aggregation behavior of photoresponsive colloids via a 2-photon absorption process. 3D structures composed of porous walls are harvested after rinsing away unexposed colloidal species. Aggregation is fully reversible with sufficient agitation.

Research Organization:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
FG02-07ER46471; AC04-94AL85000
OSTI ID:
1875133
Journal Information:
Advanced Materials, Journal Name: Advanced Materials Journal Issue: 1 Vol. 21; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

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  • Xia, Deying; Brueck, S. R. J.
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Cited By (12)

End-Grafted Polymer Chains onto Inorganic Nano-Objects journal March 2010
Mechanical Metamaterials and Their Engineering Applications journal December 2018
Nanostructures and Functional Materials Fabricated by Interferometric Lithography journal October 2010
Micro-/Nanostructured Mechanical Metamaterials journal August 2012
25th Anniversary Article: Ordered Polymer Structures for the Engineering of Photons and Phonons journal December 2013
Self‐Assembly of Giant Polymer Vesicles by Light‐Assisted Solid Hydration journal March 2019
Nanoparticles in aqueous media: crystallization and solvation charge asymmetry journal January 2010
Effects of the ionic size-asymmetry around a charged nanoparticle: unequal charge neutralization and electrostatic screening journal January 2010
Spiropyran-based dynamic materials journal January 2014
Two-step yielding and directional strain-induced strengthening in dilute colloidal gels journal April 2012
Additive manufacturing (AM) and nanotechnology: promises and challenges journal July 2013
A versatile diffractive maskless lithography for single-shot and serial microfabrication journal January 2010

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