Janus nanocarrier powered by bi-enzymatic cascade system for smart delivery

Sandra Jimenez-Falcao, Natalia Joga, Alba García-Fernández, Antoni Llopis Lorente, Daniel Torres, Beatriz De Luis, Félix Sancenón, Paloma Martínez-Ruiz, Ramón Martínez-Máñez, Reynaldo Villalonga

Research output: Contribution to journalArticleAcademicpeer-review

11 Citations (Scopus)


We report herein the assembly of an integrated nanodevice with bi-enzymatic cascade control for on-command cargo release. This nanocarrier is based on Au-mesoporous silica Janus nanoparticles capped at the mesoporous face with benzimidazole/β-cyclodextrin-glucose oxidase pH-sensitive gate-like ensembles and functionalized with invertase on the gold face. The rationale for this delivery mechanism is based on the invertase-mediated hydrolysis of sucrose yielding glucose, which is further transformed into gluconic acid by glucose oxidase causing the disruption of the pH-sensitive supramolecular gates at the Janus nanoparticles. This enzyme-powered device was successfully employed in the autonomous and on-demand delivery of doxorubicin in HeLa cancer cells.

Original languageEnglish
Pages (from-to)4669-4676
Number of pages8
JournalJournal of Materials Chemistry B
Issue number30
Publication statusPublished - 31 Jul 2019
Externally publishedYes


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