About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bio-Nano Interfaces and Engineering Applications
|
| Presentation Title |
Immobilization of laccases on CuO and ZnO nanoparticles: Stability, catalysis and water bioremediation |
| Author(s) |
F. Javier Suarez, Marcus Velasquez, Rafael Vazquez-Duhalt, Olivia A. Graeve |
| On-Site Speaker (Planned) |
F. Javier Suarez |
| Abstract Scope |
Laccases, enzymes capable of oxidizing various organic compounds, are promising for water bioremediation but often lack stability under industrial conditions. Laccase immobilization is a good methodology that can be used to increase their stability and catalytic activity. In this study, we immobilized laccases on CuO nanoparticles and ZnO nanoparticles by covalent attachment. The activity and stability of the immobilized laccase was measured using UV-vis spectroscopy under different conditions such as temperature, pH and the presence of laccase’s inhibitors. Results demonstrate an increase in the catalytic activity and stability of immobilized laccase, as compared to the free laccase. The immobilized laccases were employed to decolorize several dyes used in the textile industry. Immobilized laccases also achieved higher decolorization rates for textile dyes than their free counterparts. These findings highlight the potential of nanoparticles in enhancing laccase performance and their broader application in water bioremediation efforts. |
| Proceedings Inclusion? |
Planned: |