Related Experiment Video
Updated: Dec 8, 2025
05:21
Fabricating Highly Open Porous Microspheres HOPMs via Microfluidic Technology
Published on: May 16, 2022
3.3K
Superlyophilic Shape Memory Porous Sponge for Smart Liquid Permeation
Pengchang Liu1, Hua Lai1, Xin Luo1
1MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, People's Republic of China.
ACS Nano
|September 24, 2020
Summary
This study introduces a superlyophilic shape memory porous sponge (SSMS) with tunable pore sizes. This smart material enables controllable liquid permeation for both water and oil, offering precise flux regulation.
Area of Science:
- Materials Science
- Surface Chemistry
- Nanotechnology
Background:
- Smart liquid permeation is crucial for advanced applications.
- Existing methods struggle with low-surface-tension oils and lack flux tunability.
- Static porous structures limit control over liquid transport.
Purpose of the Study:
- To develop a novel smart material for controllable liquid permeation.
- To overcome limitations of existing hydrophobicity/hydrophilicity-based strategies.
- To achieve tunable permeation flux for diverse liquids.
Main Methods:
- Fabrication of a superlyophilic shape memory porous sponge (SSMS).
- Demonstration of tunable pore size (28 nm to 900 μm) via shape change.
- Testing of ON/OFF penetration and flux control for water and oil.
Main Results:
- The SSMS exhibits tunable pore size upon shape modification.
- Achieved controllable ON/OFF liquid permeation for both water and oil.
- Demonstrated precisely tunable permeation flux and accurate rhodamine B release.
Conclusions:
- The developed SSMS offers a new platform for smart liquid permeation.
- Tunable pore size is key for precise control over liquid transport.
- This work provides insights for designing advanced superwetting permeation materials.
