Coatable tannic acid-deposited cellulose nanocrystals for Fe(III) sensing and its application to a facile, scalable and portable sensing platform

Leveraging from the synergistic effect by combining biomass-based cellulose nanocrystals (CNCs) having high surface area and plant-based metal-chelating polyphenol coating was exploited. Herein, CNCs nanohybrid was fabricated by grafting tannic acid (TA) on the surface of CNCs ([email protected]). The [email protected] in the form of water dispersion were laminated on a variety of substrates ranging from hydrophobic to hydrophilic and flexible...