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Title: Hierarchically Ordered Nanopatterns for Spatial Control of Biomolecules

Journal Article · · ACS Nano
DOI:https://doi.org/10.1021/nn505548n· OSTI ID:1168843
 [1];  [2];  [1];  [3];  [4];  [2];  [1]
  1. Columbia Univ., New York, NY (United States). Dept. of Chemistry
  2. Columbia Univ., New York, NY (United States). Dept. of Biomedical Engineering
  3. Univ. of Texas, Austin, TX (United States). McKetta Dept. of Chemical Engineering
  4. Edgewood Chemical Biological Center, Aberdeen Proving Ground, MD (United States)

The development and study of a benchtop, high-throughput, and inexpensive fabrication strategy to obtain hierarchical patterns of biomolecules with sub-50 nm resolution is presented. A diblock copolymer of polystyrene-b-poly(ethylene oxide), PS-b-PEO, is synthesized with biotin capping the PEO block and 4-bromostyrene copolymerized within the polystyrene block at 5 wt %. These two handles allow thin films of the block copolymer to be postfunctionalized with biotinylated biomolecules of interest and to obtain micropatterns of nanoscale-ordered films via photolithography. The design of this single polymer further allows access to two distinct superficial nanopatterns (lines and dots), where the PEO cylinders are oriented parallel or perpendicular to the substrate. Moreover, we present a strategy to obtain hierarchical mixed morphologies: a thin-film coating of cylinders both parallel and perpendicular to the substrate can be obtained by tuning the solvent annealing and irradiation conditions.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); National Science Foundation (NSF); Department of Defense (DoD)
Grant/Contract Number:
AC02-06CH11357; AC02-05CH11231
OSTI ID:
1168843
Alternate ID(s):
OSTI ID: 1511388
Journal Information:
ACS Nano, Vol. 8, Issue 11; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
ENGLISH
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

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Orthogonal supramolecular protein assembly on patterned bifunctional surfaces journal January 2018
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Reactive block copolymers for patterned surface immobilization with sub-30 nm spacing journal January 2019
Microphase segregation and selective chain scission of poly(2‐methyl‐2‐oxazoline)‐ block ‐polystyrene journal May 2019
Reactive block copolymers for patterned surface immobilization with sub-30 nm spacing text January 2019