Electrophoretic deposition of cellulose nanocrystals (CNs) and CNs/alginate nanocomposite coatings and free standing membranes
| Autor: | Qiang Chen, Aldo R. Boccaccini, Sannakaisa Virtanen, Nere Garmendia, Luis Cordero-Arias, María Lasheras-Zubiate, Uxua Pérez de Larraya |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Electrophoresis
Materials science Alginates Scanning electron microscope Composite number Nanotechnology Nanocomposites Electrophoretic deposition Colloid and Surface Chemistry Coated Materials Biocompatible Glucuronic Acid Spectroscopy Fourier Transform Infrared Nanotopography Physical and Theoretical Chemistry Fourier transform infrared spectroscopy Cellulose Nanocomposite Hexuronic Acids Water Membranes Artificial Surfaces and Interfaces General Medicine Corrosion Membrane Drug delivery Wettability Nanoparticles Biotechnology |
| Zdroj: | Colloids and Surfaces B: Biointerfaces. 118:41-48 |
| ISSN: | 0927-7765 |
| DOI: | 10.1016/j.colsurfb.2014.03.022 |
| Popis: | This study presents the electrophoretic deposition (EPD) of cellulose nanocrystals (CNs) and CNs-based alginate composite coatings for biomedical applications. The mechanism of anodic deposition of CNs and co-deposition of CNs/alginate composites was analyzed based on the results of zeta-potential, Fourier transform infrared spectroscopy and scanning electron microscopy (SEM) analyses. The capability of the EPD technique for manipulating the orientation of CNs and for the preparation of multilayer CNs coatings was demonstrated. The nanotopographic surface roughness and hydrophilicity of the deposited coatings were measured and discussed. Electrochemical testing demonstrated that a significant degree of corrosion protection of stainless steel could be achieved when CNs-containing coatings were present. Additionally, the one-step EPD-based processing of free-standing CNs/alginate membranes was demonstrated confirming the versatility of EPD to fabricate free-standing membrane structures compared to a layer-by-layer deposition technique. CNs and CNs/alginate nanocomposite coatings produced by EPD are potential candidates for biomedical, cell technology and drug delivery applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect