Reconfiguring surface functions using visible-light-controlled metal-ligand coordination

Chaoming Xie, Wen Sun, Hao Lu, Annika Kretzschmann, Jiahui Liu, Manfred Wagner, Hans-Jürgen Butt, Xu Deng () and Si Wu ()
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Chaoming Xie: University of Electronic Science and Technology of China
Wen Sun: Max Planck Institute for Polymer Research
Hao Lu: Max Planck Institute for Polymer Research
Annika Kretzschmann: Max Planck Institute for Polymer Research
Jiahui Liu: Max Planck Institute for Polymer Research
Manfred Wagner: Max Planck Institute for Polymer Research
Hans-Jürgen Butt: Max Planck Institute for Polymer Research
Xu Deng: University of Electronic Science and Technology of China
Si Wu: Max Planck Institute for Polymer Research

Nature Communications, 2018, vol. 9, issue 1, 1-9

Abstract: Abstract Most surfaces are either static or switchable only between “on” and “off” states for a specific application. It is a challenge to develop reconfigurable surfaces that can adapt to rapidly changing environments or applications. Here, we demonstrate fabrication of surfaces that can be reconfigured for user-defined functions using visible-light-controlled Ru–thioether coordination chemistry. We modify substrates with Ru complex Ru-H2O. To endow a Ru-H2O-modified substrate with a certain function, a functional thioether ligand is immobilized on the substrate via Ru–thioether coordination. To change the surface function, the immobilized thioether ligand is cleaved from the substrate by visible-light-induced ligand dissociation, and then another thioether ligand with a distinct function is immobilized on the substrate. Different thioethers endow the surface with different functions. Based on this strategy, we rewrite surface patterns, manipulate protein adsorption, and control surface wettability. This strategy enables the fabrication of reconfigurable surfaces with customizable functions on demand.

Date: 2018
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DOI: 10.1038/s41467-018-06180-7

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