Langmuir-Blodgett and Langmuir-Schaefer Films of GRAnPH: The Role of Oxidative Debris
نویسندگان
چکیده
It has recently published that graphene oxide (GO) obtained from graphite by Hummers’ oxidation is composed by nanoplatelets, named as GOP and oxidative debris (OD). OD seems to be composed by highly oxidative aromatic molecules coming from rupture of the sheets and they are adsorbed on the top of the nanoplatelets. The existence of OD modifies the physical and chemical properties of the material, such us, solubility in water, oxidation degree, electrical conductivity etc.
منابع مشابه
Biocatalysts Immobilized in Ultrathin Ordered Films
The immobilization of enzymes and other proteins into ordered thin materials has attracted considerable attention over the past few years. This research has demonstrated that biomolecules immobilized in different [Langmuir-Blodgett (LB)/Langmuir-Schaefer (LS)] matrixes retain their functional characteristics to a large extent. These new materials are of interest for applications as biosensors a...
متن کاملPhotosystem I in Langmuir-Blodgett and Langmuir-Schaefer monolayers.
Photosystem I (PSI) is a membrane protein complex that generates photoinduced electrons and transfers them across the thylakoid membrane during photosynthesis. The PSI complex, separated from spinach leaves, was spread onto the air-water interface as a monolayer and transferred onto a gold electrode surface that was precoated with a self-assembled monolayer (SAM). The electrochemical properties...
متن کاملCharacterization of 10,12-pentacosadiynoic acid Langmuir–Blodgett monolayers and their use in metal–insulator–metal tunnel devices
The characterization of Langmuir-Blodgett thin films of 10,12-pentacosadiynoic acid (PDA) and their use in metal-insulator-metal (MIM) devices were studied. The Langmuir monolayer behavior of the PDA film was studied at the air/water interface using surface tension-area isotherms of polymeric and monomeric PDA. Langmuir-Blodgett (LB, vertical deposition) and Langmuir-Schaefer (LS, horizontal de...
متن کاملLangmuir Blodgett films of arachidic acid and N4 molecules: characterization and use in homeotropic alignment of N4
We study the behavior of a mixed Langmuir monolayer consisting of a fatty acid and a nematic liquid crystal. We demonstrate that the mixed monolayer successfully transfers as a Langmuir-Blodgett film and characterize the transferred film using UV spectroscopy. An important application of Langmuir-Blodgett films is in the alignment of liquid crystals for electro-optical applications, such as dis...
متن کاملLangmuir-Blodgett films of 9-phenyl anthracene molecules incorporated into different matrices.
This communication reports the surface pressure (pi) versus area per molecule (A) isotherm characteristics of the mixed films of 9-phenyl anthracene (PA) in stearic acid (SA) and polymethyl methacrylate (PMMA) matrices, at the air-water interface. The mixed Langmuir films at the air-water interface have been observed to be easily transferred onto solid substrates to form uniform Langmuir-Blodge...
متن کامل