title: Silver-cotton nanocomposites: Nano-design of microfibrillar structure causes morphological changes and increased tenacity.
abstract: The interactions of nanoparticles with polymer hosts have important implications for directing the macroscopic properties of composite fibers, yet little is known about such interactions with hierarchically ordered natural polymers due to the difficulty of achieving uniform dispersion of nanoparticles within semi-crystalline natural fiber. In this study we have homogeneously dispersed silver nanoparticles throughout an entire volume of cotton fiber. The resulting electrostatic interaction and distinct supramolecular structure of the cotton fiber provided a favorable environment for the controlled formation of nanoparticles (12 ± 3 nm in diameter). With a high surface-to-volume ratio, the extensive interfacial contacts of the nanoparticles efficiently "glued" the structural elements of microfibrils together, producing a unique inorganic-organic hybrid substructure that reinforced the multilayered architecture of the cotton fiber.
authors.affiliation: Southern Regional Research Center, Agricultural Research Service, USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
authors.forename: Sunghyun
authors.initials: S
authors.lastname: Nam
authors.affiliation: Southern Regional Research Center, Agricultural Research Service, USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
authors.forename: Brian D
authors.initials: BD
authors.lastname: Condon
authors.affiliation: Southern Regional Research Center, Agricultural Research Service, USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
authors.forename: Christopher D
authors.initials: CD
authors.lastname: Delhom
authors.affiliation: Southern Regional Research Center, Agricultural Research Service, USDA, 1100 Robert E. Lee Blvd., New Orleans, LA 70124, USA.
authors.forename: Krystal R
authors.initials: KR
authors.lastname: Fontenot
mesh_terms: D032561:Cotton Fiber; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D057139:Nanofibers / Q000737:chemistry / Q000648:ultrastructure; D011108:Polymers / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D055672:Static Electricity; D013499:Surface Properties
chemical_list: D011108:Polymers; D012834:Silver