Alginate microgels are widely used as delivery systems in food, cosmetics, and pharmaceutical industries for encapsulation and sustained release of hydrophilic compounds and cells. However, the encapsulation of lipophilic molecules inside these microgels remains a great challenge because of the complex oil-core matrix required. The present study describes an original two-step approach allowing ...

Crystalline cellulose, the most abundant natural polymer on earth, features exceptional physical and mechanical properties. Using atomistic simulation, this study reports behavior of cellulose-cellulose nanocrystal hydrophilic interface systematically examines impact loading direction, interfacial moisture, misalignment surface types. The density, orientation or distribution hydrogen bonds are ...

Polylactide (PLA)/poly (butylene adipate-co-terephthalate) (PBAT) blend nanocomposites including 3 wt% of cellulose nanocrystals (CNCs) were prepared by melt compounding method in a twin-screw extruder and an internal mixer. Blend formulated diluting three different masterbatches solution casting that contained 7 CNC. These were: (m1) PLA/PBAT/CNC masterbatch; (m2) PLA/CNC (m3) PBAT/CNC masterb...

Cellulose nanocrystals (CNCs) are ubiquitous in some of nature’s toughest biological nanocomposites such as wood and bacterial cell walls [1] and exhibit outstanding mechanical properties rivaling those of synthetic materials such as Kevlar [2]. Although the impressive elastic properties of CNCs and mechanical properties of macroscale cellulosic materials have been well characterized, a molecul...

This study reported on the feasibility and practicability of Cr(NO₃)₃ hydrolysis to isolate cellulose nanocrystals (CNCCr(NO3)3) from native cellulosic feedstock. The physicochemical properties of CNCCr(NO3)3 were compared with nanocellulose isolated using sulfuric acid hydrolysis (CNCH2SO4). In optimum hydrolysis conditions, 80 °C, 1.5 h, 0.8 M Cr(NO₃)₃ metal salt and solid-liquid ratio of 1:3...

Model films of native cellulose nanofibrils, which contain both crystalline cellulose I and amorphous domains, were used to investigate the dynamics and activities of cellulase enzymes. The enzyme binding and degradation of nanofibril films were compared with those for other films of cellulose, namely, Langmuir-Schaefer and spin-coated regenerated cellulose, as well as cellulose nanocrystal cas...

Cellulosic liquid crystalline solutions and suspensions form chiral nematic phases that show a rich variety of optical textures in the liquid crystalline state. These ordered structures may be preserved in solid films prepared by evaporation of solvent or suspending medium. Film formation from aqueous suspensions of cellulose nanocrystals (CNC) was investigated by polarized light microscopy, op...

Polymers play a prominent role in daily lives; however, there is growing concern on the depleting fossil resources triggering research for sustainable alternatives. Here, novel wholly biobased nanocomposites are prepared from polyamide 36,36 (PA36,36) thermoplastic elastomer and cellulose nanocrystals (CNCs). Further, influence of CNC addition loading morphological features, thermal mechanical ...

The quest for more renewable and biodegradable materials currently represents a scientific key focus to combat the massive maneuver of non-sustainable products. Lignocellulosic feedstocks are rich in cellulose, hemicellulose , lignin which, when recovered separated, can give rise innovative value-added Cellulose at micro (MCC) nanosized crystalline particles (CNC) suitable examples bioproducts ...