Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures Processing Measurement and Phenomena · 2004 · 15 citations · 11 references
Natural SciencesMaterials EngineeringMaterials ScienceFunctional MaterialsPolymer ChemistryPolymer MaterialsPolymer CharacterizationPolymer FunctionalizationPolymer StabilityPolymer StructurePolymer SurfacesPolymer Thin FilmsChitosanExposure Time DependenceFluorescence Emission SpectraFluorescence Spectroscopy AnalysisImprint LithographyMolecularly Imprinted Materials
Poly(3,4-ethylenedioxythiophene) (PEDOT) and chitosan structures on Si, patterned by plasticizer-assisted imprint lithography (PAIL), are examined under a variety of imprinting conditions. The stabilities of pattern dimension and chemical functionality of these polymers are presented. Thermal annealing for 5min at 80°C is found to be an effective method to stabilize imprinted PEDOT patterns. Biofunctionality in chitosan as a function of imprint temperature and pressure is examined through fluorescence spectroscopy. The accessibility of the amine group of chitosan is observed to decrease for imprint temperatures above 80°C, whereas the chemical functionality is not affected by pressure up to 1MPa. Fluorescence spectra of the chitosan are observed to be strong functions of exposure time to O2 plasma.
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Chitosan: An Attractive Biocompatible Polymer for Microencapsulation
Carlos Péniche, Waldo Argüelles‐Monal, Hazel Peniche et al. · Macromolecular Bioscience · 2003 · 268 citations
Binding of ions to chitosan—selectivity studies
Inger M.N. Vold, Kjell M. Vårum, Eric Guibal et al. · Carbohydrate Polymers · 2003 · 212 citations