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Smart pH-Modulated Two-Way Photoswitch Based on a Polymer-Modified Single Nanochannel
- Source :
- ACS applied materialsinterfaces. 13(21)
- Publication Year :
- 2021
-
Abstract
- In this article, we have demonstrated a smart pH-modulated two-way photoswitch that can reversibly switch ion transport under alternating light exposure over a wide pH range. This photoswitch was prepared by functionalizing the interior of a single conical glass nanochannel with a poly-spiropyran-linked methacrylate (P-SPMA) polymer through surface-initiated atom transfer radical polymerization. The P-SPMA polymer brushes comprise functional groups that are responsive to light and pH, which can cause configuration and charge changes to affect the properties of the nanochannel wall. The SPMA polymer-modified nanochannel not only reversibly controlled ion transport under alternating light irradiation but also efficiently and flexibly regulated the direction and extent of the ion transport based on the pH. This two-way photoswitch exhibits the considerable potential of photoresponsive polymers for the advancement of "intelligent" bionic nanochannel devices for ion screening and optical sensing in various applications.
- Subjects :
- Polymer modified
chemistry.chemical_classification
Materials science
Photoswitch
Atom-transfer radical-polymerization
Nanotechnology
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
Methacrylate
01 natural sciences
0104 chemical sciences
Ion
chemistry
Ph range
General Materials Science
0210 nano-technology
Ion transporter
Subjects
Details
- ISSN :
- 19448252
- Volume :
- 13
- Issue :
- 21
- Database :
- OpenAIRE
- Journal :
- ACS applied materialsinterfaces
- Accession number :
- edsair.doi.dedup.....200c85efc6bb423a66ff6966f51c40fa