Flexible cement fibers with high toughness and water-activated setting behavior for construction.

Brittle fracture and facile crack initiation present significant challenges for the toughening and processing of cementitious composites. In this work, the continuous and large-scale fabrication of cement-based fiber is enabled by cellulose-assisted wet spinning strategy, during which cement grains are in-situ implanted into porous cellulose matrix. The subsequent hydration process induces the in-situ formation of a hard continuous network which interconnects with the flexible porous cellulose skeleton, leading an interpenetrating dual-network architecture formed within the resulting cellulose-supported cement-based (CSC) fibers.

Enhancing the quantum yield and electrochemical properties of carbon quantum dots via optimized hydrothermal treatment using cellulose nanocrystals as precursors.

Carbon quantum dots (CQDs) are receiving increasing attention due to their tunable redox activity, abundant surface functional groups, and excellent aqueous dispersion. However, their low quantum yield remains a significant impediment to their synthesis and practical application. In the present work, cellulose nanocrystals (CNCs) were utilized as precursors for the optimized hydrothermal synthesis of CQDs.

Preparation and properties of chitin/silk fibroin biocompatible composite fibers.

In the present world chitin is used enormously in various fields, such as biopharmaceuticals, medical and clinical bioproducts, food packaging, etc. However, its development has been curbed by the impaired performance and cumbersome dissolution process when chitin materials are dissolved and regenerated by physical or chemical methods. To further obtain the regenerated chitin fiber material with improved performance, silk fibroin was introduced into the chitin matrix material, and chitin/silk fibroin biocompatible composite fibers were obtained by formic acid/calcium chloride/ethanol ternary system and top-down wet spinning technology.