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Characterization of organic nanoparticle orientation in a polyurethane foam, which exhibits anisotropic mechanical properties, remains challenging. In article number 1803439, John F. Conley Jr., Pratheep K. Annamalai, and co‐workers briefly demonstrate the application of atomic layer deposition to enhance the contrast of nanocellulose through a coating of alumina on nanocellulose and enabling microscopic...
Analysis of cellulose nanocrystals (CNCs) at low volume fractions in polymer nanocomposites through conventional electron microscopy still remains a challenge due to insufficient contrast between CNCs and organic polymer matrices. Herein, a methodology for enhancing the contrast of CNC, through atomic layer deposition (ALD) of alumina (Al2O3) on CNCs is demonstrated. The metal oxide coated CNC allows...
Cellulose nanocrystal (CNC, 0%, 5%, and 10% w/w, in chitosan, dry basis) reinforced 2% chitosan aqueous coatings were evaluated for delaying the ripening and quality deterioration of postharvest green D'Anjou (Pyrus communis L.) and Bartlett (Pyrus communis L.) pears during 3 wk of ambient storage (20 ± 2 °C and 30 ± 2% RH) or 5 mo of cold storage (–1.1 °C and 90% RH), respectively. Ethylene and CO...
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