Preparation, characterization and applications of ultrathin cellulose acetate Langmuir-Blodgett films.

Citation:

Meirav Cohen-Atiya, Vadgama, Pankaj , and Mandler, Daniel. . 2007. “Preparation, Characterization And Applications Of Ultrathin Cellulose Acetate Langmuir-Blodgett Films.”. Soft Mattersoft Matter, 3, Pp. 1053 - 1063.

Abstract:

The prepn. and characterization of mono- and multilayers of cellulose acetate (CA) Langmuir-Blodgett films on indium tin oxide and gold surfaces were studied in detail for the first time. These layers were characterized by their thickness, wettability, morphol. and structure using various surface techniques. The thickness of a monolayer of CA based on XPS measurement was one nanometer. Multilayers of CA Langmuir films were homogeneously transferred onto solid surfaces. The permeation of different mols. across these films was studied using electrochem. in various redox solns. Our findings suggest that a membrane like structure is formed, which is less permeable as the no. of layers increases. Finally, potential applications of these ultrathin films as supports for accommodating biomols. or metal nanoparticles are presented. [on SciFinder(R)]