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Biodegradable Metal-Organic Framework-Based Microrobots (MOFBOTs).
Journal article

Biodegradable Metal-Organic Framework-Based Microrobots (MOFBOTs).

  • Terzopoulou A Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
  • Wang X Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
  • Chen XZ Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
  • Palacios-Corella M Instituto de Ciencia Molecular, Universidad de Valencia, Catedratico Jose Beltran 2, Paterna, 46980, Spain.
  • Pujante C Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zurich, 8093, Switzerland.
  • Herrero-Martín J ALBA Synchrotron Light Source, Cerdanyola del Vallès, Barcelona, 08290, Spain.
  • Qin XH Institute for Biomechanics, ETH Zurich, Leopold-Ruzicka-Weg 4, Zurich, 8093, Switzerland.
  • Sort J Departament de Física, Universitat Autonoma de Barcelona, Cerdanyola del Valles, Barcelona, 08193, Spain.
  • deMello AJ Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zurich, 8093, Switzerland.
  • Nelson BJ Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
  • Puigmartí-Luis J Departament de Ciència dels Materials i Química Física, Institut de Química Teòrica i Computacional, Barcelona, 08028, Spain.
  • Pané S Institute of Robotics and Intelligent Systems, ETH Zurich, Tannenstrasse 3, Zurich, 8092, Switzerland.
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  • 2020-09-09
Published in:
  • Advanced healthcare materials. - 2020
biodegradation
drug delivery
metal-organic frameworks
microrobots
zeolitic imidazolate frameworks
English Microrobots and metal-organic frameworks (MOFs) have been identified as promising carriers for drug delivery applications. While clinical applications of microrobots are limited by their low drug loading efficiencies and the poor degradability of the materials used for their fabrication, MOFs lack motility and targeted drug delivery capabilities. The combination of these two fields marks the beginning of a new era; MOF-based small-scale robots (MOFBOTs) for biomedical applications. Yet, biodegradability is a major hurdle in the field of micro- and nanoswimmers including small-scale robots. Here, a highly integrated MOFBOT that is able to realize magnetic locomotion, drug delivery, and selective degradation in cell cultures is reported for the first time. The MOF used in the investigations does not only allow a superior loading of chemotherapeutic drugs and their controlled release via a pH-responsive degradation but it also enables the controlled locomotion of enzymatically biodegradable gelatin-based helical microrobots under magnetic fields. The degradation of the integrated MOFBOT is observed after two weeks, when all its components fully degrade. Additionally, drug delivery studies performed in cancer cell cultures show reduced viability upon delivery of Doxorubicin within short time frames. This MOFBOT system opens new avenues for highly integrated fully biodegradable small-scale robots.
Language
  • English
Open access status
closed
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Persistent URL
https://sonar.ch/global/documents/76310
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