Journal
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
Volume 116, Issue 1, Pages 40-45Publisher
NATL ACAD SCIENCES
DOI: 10.1073/pnas.1815358116
Keywords
combinatorial screening; catalysis; multimetallic nanoparticle synthesis; carbon nanotube growth; in situ Raman spectroscopy
Categories
Funding
- Sherman Fairchild Foundation, Inc.
- Air Force Office of Scientific Research Award [FA9550-16-1-0150]
- Air Force Research Laboratory [FA8650-15-2-5518]
- Air Force Office of Scientific Research Laboratory Research Independent Research Grant [16XCOR322]
- National Cancer Institute of the NIH [U54CA199091]
- annevar Bush Faculty Fellowship Program - Basic Research Office of the Assistant Secretary of Defense for Research and Engineering
- Office of Naval Research [N00014-15-1-0043]
- Department of Defense through the National Defense Science & Engineering Graduate Fellowship Program
- Soft and Hybrid Nanotechnology Experimental Resource NSF Grant [ECCS-1542205]
- Materials Research Science and Engineering Center [DMR-1720139]
- State of Illinois
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The nanomaterial landscape is so vast that a high-throughput combinatorial approach is required to understand structure-function relationships. To address this challenge, an approach for the synthesis and screening of megalibraries of unique nanoscale features (> 10,000,000) with tailorable location, size, and composition has been developed. Polymer pen lithography, a parallel lithographic technique, is combined with an ink spray-coating method to create pen arrays, where each pen has a different but deliberately chosen quantity and composition of ink. With this technique, gradients of Au-Cu bimetallic nanoparticles have been synthesized and then screened for activity by in situ Raman spectroscopy with respect to single-walled carbon nanotube (SWNT) growth. Au3Cu, a composition not previously known to catalyze SWNT growth, has been identified as the most active composition.
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