Tunable Stress‐Responsive Biomimetic Multi‐Stage Porous Aerogels as Advanced Wideband Acoustic Absorbers with Superior Flame Resistance

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 23, 2025

Abstract Multi‐stage porous aerogels have spurred relentless innovation and surpassed traditional boundaries by redefining the landscape of advanced sound management technologies. Harnessing stress‐responsive tuning properties in intricately enhances acoustic attenuation. porosity provides enhanced efficiency across a variety environments. In addition to facilitating attenuation, demonstrating exceptional flame resistance represent an innovative solution specifically engineered for high‐temperature applications. this study, biomimetic multi‐stage aerogel, BMPA, is developed created through mild microbial fermentation, resulting distinctive internal structure. BMPA enabled as high 93%, with ultralight density 0.0518 g cm − 3 . The uncompressed material reduced levels at 1.5 kHz and, when stretched, further improved attenuation 2, 2.5, kHz. Its multistage pore structure lowered noise from 85.7 68.7 dB, achieving total reduction 17 dB—an impressive advancement management! treated inorganic zinc solutions demonstrates significant resistance, V‐0 rating limiting oxygen index value exceeding 60%. groundbreaking development significantly potential next‐generation materials that excel absorption.

Language: Английский

Ex situ fabrication and bioactivity characterization of Neem and Sage-infused bacterial cellulose membranes for sustainable antimicrobial applications

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 287, P. 138433 - 138433

Published: Dec. 7, 2024

Language: Английский