Biodegradable UV protection film using cellulose nanocrystals and quantum dots
A novel biodegradable film utilizing cellulose nanocrystals and quantum dots offers efficient UV protection. This spreadable material can be applied to uneven surfaces, providing a sustainable and low-cost alternative to traditional coatings.
Overview
The proposed solution is a biodegradable, spreadable film that provides UV protection using cellulose nanocrystals (CNCs) and quantum dots (QDs). This innovative material forms a chiral hybrid film capable of effective UV blocking and is designed to be sprayed onto large, uneven, or curved surfaces. The use of CNCs, derived from the abundant biomaterial cellulose, ensures sustainability and cost-effectiveness, making it an environmentally friendly alternative to conventional UV protection materials.
Technical specifications
Key features:
- Utilizes cellulose nanocrystals for chiral nematic structure formation.
- Incorporates ZnO-doped quantum dots for enhanced UV absorption.
- Spreadable and flexible, suitable for large and complex surfaces.
- Sustainable and low-cost, leveraging abundant natural resources.
Applications:
- Suitable for use on building facades, vehicles, and outdoor structures where UV protection is needed.
- Potential for use in consumer products requiring UV resistance.
Technology readiness level
The current technology readiness level is 4, indicating that the concept has been validated in a laboratory environment. Future validation plans include optimizing the hybrid material, developing the spraying procedure, and conducting field tests to demonstrate practical application and efficiency.
About Hebrew University of Jerusalem
The Hebrew University of Jerusalem is a comprehensive public research university with multiple campuses in Jerusalem and an agricultural campus in Rehovot. Its integration with Hadassah’s university hospitals enables clinical studies, access to varied patient populations, and co‑located research that accelerates translation. Industry engagement runs through Yissum, the university’s tech‑transfer company, managing IP, licensing, startup creation, and sponsored research agreements. Research is supported by competitive national funding and international programs, including European Union frameworks.
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