Recent Advances in Paper Conservation Using Nanocellulose and Its Composites

Molecules, Journal Year: 2025, Volume and Issue: 30(2), P. 417 - 417

Published: Jan. 19, 2025

Paper-based cultural relics experience aging and deterioration during their long-term preservation, which poses a serious threat to lifetime. The development of conservation materials with high compatibility low intervention has been expected extend the lifetime paper artifacts. As new type biological macromolecule, nanocellulose extensively utilized in conservation, attributed its excellent compatibility, optical transparency, outstanding mechanical strength, large specific surface area abundant hydroxyl groups. This review systematically summarizes latest three kinds (cellulose nanofibril, cellulose nanocrystal, bacterial nanocellulose) composites used for multifunctional relics. Owing strong hydrogen bond interactions between hydroxyls fibers, can effectively consolidate without adding adhesives. composite other functional greatly expands application scope, superior performance emphasized deacidification, consolidation, antimicrobial effect, antioxidation, UV resistance, self-cleaning, promotion printing property, reduction air permeability, flame retardancy. characteristics future prospects are highlighted paper-based

Language: Английский

Smart Bacterial Cellulose–Methylacrylated Chitosan Composite Hydrogel: Multifunctional Characterization for Real-Time pH Monitoring

Polymers, Journal Year: 2025, Volume and Issue: 17(7), P. 914 - 914

Published: March 28, 2025

pH is a critical parameter that influences biochemical and environmental processes. Real-time accurate detection essential for monitoring health the environment. Herein, bacterial cellulose methylacrylated chitosan (BC-MACS) composite hydrogel was prepared to achieve rapid detection. The integration of MACS reduced crystallinity pristine BC, with no adverse effects on thermal stability. SEM images validated fibrous nature BC-MACS composite, indicating successfully infiltrated into pores BC. By incorporating BC matrix, exceptional biocompatibility maintained, while simultaneously augmenting its mechanical properties. Due excellent swelling ability MACS, fabricated exhibited superior behavior compared hydrogel, which facilitated absorption solution under test. A sensor by introducing indicator solution, color variation across range (2-12) demonstrated clear response changes. Therefore, holds potential use as visual in diverse applications, especially monitoring.

Language: Английский