Researchers survey some recent applications of biologically-derived composites containing clay with particles in the micrometer or nanometer scale. They cover nanocomposites based on polysaccharide-fibrous clay, halloysite-chitosan, montmorillonite-chitosan, kaolinite-chitosan, chitosan-halloysite, vermiculate starch, halloysite starch, montmorillonite starch, kaolinite starch, cellulose, halloysite nanotube cellulose, kaolinite cellulose, and montmorillonite cellulose. Among the applications they describe are drug and molecule carriers, tissue engineering, wound dressing, antimicrobial and antioxidant food packaging, water vapor barrier, and water treatment. Annotation ©2022 Ringgold, Inc., Portland, OR (protoview.com)