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Immobilization of Recombinant Human Catalase on Gold and Silver Nanoparticles

by Agnieszka Małgorzata Pudlarz , Grobelny, Jarosław , Celichowski, Grzegorz , Tomaszewska, Emilia , Czechowska, Ewa , Szemraj, Janusz , Ranoszek-Soliwoda, Katarzyna

in Agglomerates / Aqueous solutions / Bacteria / Catalase / Catalysis / Chemical reduction / Chemical synthesis / Colloids / Disease transmission / Gold / Immobilization / Light scattering / Nanoparticles / Photon correlation spectroscopy / Room temperature / Scanning transmission electron microscopy / Silver / Transmission electron microscopy

2018

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Immobilization of Recombinant Human Catalase on Gold and Silver Nanoparticles

by Agnieszka Małgorzata Pudlarz , Grobelny, Jarosław , Celichowski, Grzegorz , Tomaszewska, Emilia , Czechowska, Ewa , Szemraj, Janusz , Ranoszek-Soliwoda, Katarzyna

2018

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Immobilization of Recombinant Human Catalase on Gold and Silver Nanoparticles

by Agnieszka Małgorzata Pudlarz , Grobelny, Jarosław , Celichowski, Grzegorz , Tomaszewska, Emilia , Czechowska, Ewa , Szemraj, Janusz , Ranoszek-Soliwoda, Katarzyna

2018

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Journal Article

Immobilization of Recombinant Human Catalase on Gold and Silver Nanoparticles

Agnieszka Małgorzata Pudlarz,

Grobelny, Jarosław,

Celichowski, Grzegorz,

Tomaszewska, Emilia,

Czechowska, Ewa,

Szemraj, Janusz,

Ranoszek-Soliwoda, Katarzyna

2018

Overview

Human catalase cDNA was cloned into a pEX-C-His vector. Purified recombinant catalase was immobilized on nanoparticles. Gold and silver nanoparticles were synthesized in a variety of sizes by chemical reduction; no agglomerates or aggregates were observed in any of the colloids during dynamic light scattering or scanning transmission electron microscopy analysis. After immobilization on gold nanoparticles, recombinant catalase activity was found to be lower than that of the same amount of enzyme in aqueous solution. However, after 10 days of storage at room temperature, the activity of catalase immobilized on gold nanoparticles (AuNPs) of 13 and 20 nm and coverage of 133% was 68 and 83% greater than catalase in aqueous solution, respectively. During 10 days of experiment, percentage activity of catalase immobilized on those gold nanoparticles was higher in comparison to CAT in aqueous solution. Catalase immobilized on silver nanoparticles did not lose activity as significantly as catalase immobilized on AuNPs. Those results confirm the ability to produce recombinant human enzymes in a bacterial expression system and its potential use while immobilized on silver or gold nanoparticles.

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Springer Nature B.V

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