Reversible Hiding of Janus Structural Color Pattern Induced by ZnS Colloidal Spheres on Inverse-Opal Structure

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 3274 - 3280

Published: March 22, 2025

The Janus phenomenon observed in nature is intriguing and has garnered significant attention within the domain of structural color research. However, there have been no reports with concealed properties. By spraying a layer uniform ZnS spheres on surface inverse-opal photonic crystal (IOPC) films, we developed color-tunable films ability reversibly hiding color. As shown through simulation experimental validation, asymmetric Mie scattering effect results different colors either side film, thereby creating characteristics. Here, IOPC film served as water-responsive switch to conceal or reveal exhibits corresponding band gap hides its characteristics during dry state, while become evident upon wetting. incorporation varying diameters endows patterned enhanced anticounterfeiting ability.

Language: Английский

Multifunctional Janus Hydrogels: Surface Design Strategies for Next-Generation Clinical Solutions

Gels, Journal Year: 2025, Volume and Issue: 11(5), P. 343 - 343

Published: May 6, 2025

Janus hydrogels, distinguished by their dual-sided structure with distinct physical and chemical properties, have garnered significant attention in the medical field, particularly for applications drug delivery, tissue engineering, wound healing. Their ability to simultaneously perform multiple functions, such as targeted release biomimetic interaction, positions them a promising platform advanced therapeutic strategies. The growing interest these hydrogels is primarily driven multifunctionality capacity address complex biological needs. This review delves into design, fabrication methods, of medicine, focusing on potential overcome limitations conventional therapies providing comprehensive overview role contemporary biomedical applications.

Language: Английский