Dual-Responsive Macromolecular Surfaces with Binary Patterns

doi:10.1021/acs.macromol.4c02973

Dual-Responsive Macromolecular Surfaces with Binary Patterns

2025-02-24

0

PRE

AI

Rigoberto C. Advíncula *

DOI：10.1021/acs.macromol.4c02973

Original

Original request for help

Save

Abstract

En 中文

The development of nanopatterned interfaces incorporating multiple stimuli-responsive polymers has great potential for advancing smart sensors and molecular capture devices, yet it remains challenging due to limitations in patterning techniques and grafting from methods. Here, we present a binary-patterned surface featuring honeycomb-shaped photothermal polypyrrole (PPy) and thermally responsive poly(ethylene glycol methyl ether acrylate-co-poly(ethylene glycol) methyl ether acrylate) [poly(EGMEA-co-PEGMEA)] brushes within the cavities, fabricated using colloidal lithography and surface-initiated photoinduced electron transfer-reversible addition-fragmentation chain transfer (SI-PET-RAFT) polymerization. The morphology of the surface can be precisely tuned by adjusting the height of each domain. This design integrates unique topographical features with the stimuli-responsiveness of the polymer, enabling the collapse of the copolymer brushes through direct heating or photothermal conversion of PPy under near-IR light. This innovative system offers potential capture-release functionality, providing versatility for diverse applications and enhancing adaptability across different functional scenarios.

Keywords:

NANOCONFINEMENT

STABILITY

Dual-Responsive Macromolecular Surfaces with Binary Patterns

Abstract

Journal

Organization