期刊
SCIENCE
卷 366, 期 6469, 页码 1095-+出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aax9075
关键词
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资金
- National Natural Science Foundation of China [21674062, U1632117]
- Science and Technology Commission of Shanghai Municipality [16ZR1422600, 17JC1400700, 18JC1415500]
- Shanghai Education Development Foundation
- Shanghai Municipal Education Commission [16SG54]
The creation of nanostructures with precise chemistries on material surfaces is of importance in a wide variety of areas such as lithography, superhydrophobicity, and cell adhesion. We describe a platform for surface functionalization that involves the fabrication of cylindrical micellar brushes on a silicon wafer through seeded growth of crystallizable block copolymers at the termini of immobilized, surface-confined crystallite seeds. The density, length, and coronal chemistry of the micellar brushes can be precisely tuned, and post-growth decoration with nanoparticles enables applications in catalysis and antibacterial surface modification. The micellar brushes can also be grown on ultrathin two-dimensional materials such as graphene oxide nanosheets and further assembled into a membrane for the separation of oil-in-water emulsions and gold nanoparticles.
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