Room Temperature Phosphorescent Nanofiber Membranes by Bio-Fermentation
Xiaolin Nie1, Junyi Gong1, Zeyang Ding1
1School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, Clinical Translational Research Center of Aggregation-Induced Emission, School of Medicine, The Second Affiliated Hospital, The Chinese University of Hong Kong, Shenzhen (CUHK-Shenzhen), Guangdong, 518172, P. R. China.
Summary
Researchers developed sustainable, stimuli-responsive nanofiber materials using bacterial cellulose for room temperature phosphorescence (RTP). These bio-inspired materials offer tunable, moisture-sensitive light emission for advanced applications.
Area of Science:
- Materials Science
- Biotechnology
- Optoelectronics
Background:
- Stimuli-responsive materials with room temperature phosphorescence (RTP) are crucial for advanced technologies.
- Sustainable, scalable, and processable fabrication of these materials remains a significant challenge.
Purpose of the Study:
- To develop a bio-inspired, sustainable strategy for creating RTP nanofiber materials.
- To utilize bacterial cellulose (BC) for its biocompatibility, non-toxicity, and structural properties.
Main Methods:
- Bio-fermentation of bacterial cellulose (BC) to create nanofiber scaffolds.
- Characterization of the structural and photoluminescent properties of the resulting materials.
- Investigation of stimuli-responsive behavior, specifically moisture-induced phosphorescence modulation.
Main Results:
- Successfully fabricated RTP nanofiber materials from bacterial cellulose.
- Achieved remarkable RTP performance with long emission lifetimes (up to 1636.79 ms) at room temperature.
- Demonstrated repeatable, dynamic quenching and activation of phosphorescence by moisture, tunable by altering cellulose properties.
Conclusions:
- Bacterial cellulose provides a sustainable and biocompatible platform for advanced RTP materials.
- The developed materials exhibit unique moisture-sensitive properties suitable for anti-counterfeiting and information encryption.
- This bio-derived approach offers a scalable and eco-friendly alternative to synthetic polymers for stimuli-responsive optoelectronic applications.
