ACS Omega, Год журнала: 2025, Номер unknown
Опубликована: Апрель 16, 2025
Язык: Английский
Advanced Functional Materials, Год журнала: 2025, Номер unknown
Опубликована: Янв. 23, 2025
Abstract We demonstrate shear‐printed layered photonic films with vivid structural coloration from bio‐derived cellulose nanocrystals and highly aligned Ti 3 C 2 T x MXene nanoflakes. These ultrathin (700–1500 nm) show high light transmittance above 40% in the visible range. In reflectance mode, however, appear vividly colored iridescent due to multiple distinct bandgaps near‐infrared ranges, which are rarely observed CNC composites. The is controlled by stacking of nanoscale‐thin layers separated thicker matrix, as confirmed simulations. unique combination distinctly different optical appearances modes occurs printed just a few layers. This because molecularly smooth interfaces refractive contrast between bio‐based inorganic phases, result concurrence constructive destructive interference. lamellar biophotonic open possibilities for advanced radiative cooling, camouflaging, multifunctional capacitors, filtration applications, while matrix strengthens their flexibility, robustness, facilitates sustainability.
Язык: Английский
Процитировано
0
Science China Materials, Год журнала: 2025, Номер unknown
Опубликована: Март 7, 2025
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown
Опубликована: Март 31, 2025
Natural polymers such as plant-derived cellulose nanocrystals (CNCs) are renowned for color iridescence due to their internal helical organization, but they show modest stretchability and bending abilities, because of the brittle nature highly crystalline needlelike nanocrystals. Herein, we report stretchable composite materials built from these branched ionic (bIPs) with terminal amine-terminated poly(N-isopropylacrylamide) (PNIPAM) stacked between elastomeric layers. These layered composites preserve high mechanical polyurethane outer layers up 150%. Furthermore, toughness increased manyfold, sequential initiation arresting concurrent transversal cracks within reinforcing central nanocomposite layer. Moreover, vivid structural colors CNC organization preserved laminated ability respond humidity temperature. We suggest that laminates nanocellulose can be considered promising candidates demanding applications robust wearable sensors, flexible optical labels, photonic devices.
Язык: Английский
Процитировано
0
ACS Omega, Год журнала: 2025, Номер unknown
Опубликована: Апрель 16, 2025
Язык: Английский
Процитировано
0