title: Improving catalase-based propelled motor endurance by enzyme encapsulation.
abstract: Biocatalytic propulsion is expected to play an important role in the future of micromotors as it might drastically increase the number of available fuelling reactions. However, most of the enzyme-propelled micromotors so far reported still rely on the degradation of peroxide by catalase, in spite of being vulnerable to relatively high peroxide concentrations. To overcome this limitation, herein we present a strategy to encapsulate the catalase and to graft the resulting enzyme capsules on motor particles. Significant improvement of the stability in the presence of peroxide and other aggressive agents has been observed.
authors: ICN2 - InstitutCatala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra (Barcelona), Spain CSIC Staff.
authors: Juliane
authors: J
authors: Simmchen
authors: Alejandro
authors: A
authors: Baeza
authors: Daniel
authors: D
authors: Ruiz-Molina
authors: Maria
authors: M
authors: Vallet-Regí
mesh_terms: D055162:Biocatalysis; D002374:Catalase / Q000737:chemistry*; D002384:Catalysis; D004798:Enzymes / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D008670:Metals / Q000737:chemistry; D009038:Motion; D036103:Nanotechnology; D010447:Peptide Hydrolases / Q000737:chemistry; D010545:Peroxides / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry; D011137:Polystyrenes / Q000737:chemistry; D011804:Quinolines / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D013696:Temperature
chemical_list: D004798:Enzymes; D008670:Metals; D010545:Peroxides; D011108:Polymers; D011137:Polystyrenes; D011804:Quinolines; D012822:Silicon Dioxide; D006861:Hydrogen Peroxide; C047117:bicinchoninic acid; D002374:Catalase; D010447:Peptide Hydrolases