journal article·2022-03Open access

Biotemplating of Metal–Organic Framework Nanocrystals for Applications in Small‐Scale Robotics

Anastasia Terzopoulou, Mario Palacios‐Corella, Carlos Franco, Semih Sevim, Thomas Dysli, Fajer Mushtaq, María Romero‐Angel, Carlos Martí‐Gastaldo, De Gong, Jun Cai, Xiang‐Zhong Chen, Martin Pumera, Andrew J. deMello, Bradley J. Nelson, Salvador Pané, Josep Puigmartí‐Luis

Advanced Functional Materials· Volume 32· Issue 13

Abstract

Abstract Biotemplating is a powerful approach for manufacturing small‐scale devices. Here, the assembly of metal–organic framework (MOF) nanocrystals onto biotemplated magnetic helical structures on the cyanobacterium Spirulina platensis is reported. It is demonstrated that the authors’ approach is universal and can be used to equip biotemplated structures with different functional MOF systems. The successful assembly of MOF nanocrystals on magnetically coated helical biotemplates is achieved by decorating the magnetic surface with gelatin, a naturally occurring macromolecule with synthon moieties that allows anchoring of the MOF nanocrystals via electrostatic interactions. Furthermore, as gelatin is a thermally responsive material, it can serve to free the magnetic biotemplates from the MOF nanocrystal cargoes. As such, the systems can be used as highly integrated magnetically driven microrobots with multiple functionalities. To this end, the potential of these composite helical architectures is demonstrated as MOF‐based small‐scale robots with applications in biomedicine and environmental remediation.
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Research context

OpenAlex topics: Micro and Nano Robotics · Nanoplatforms for cancer theranostics · Supramolecular Self-Assembly in Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Robotics and Intelligent Systems ETH Zurich Tannenstrasse 3 Zurich CH‐8092 Switzerland

Instituto de Ciencia Molecular Universidad de Valencia Catedratico Jose Beltran 2 Paterna 46980 Spain

Future Energy and Innovation Laboratory Central European Institute of Technology Brno University of Technology Brno 61200 Czech Republic

School of Mechanical Engineering and Automation Beihang University No. 37 Xueyuan Road, Haidian District Beijing 100191 China

3D Printing & Innovation Hub Department of Food Technology Mendel University in Brno Brno 61300 Czech Republic

Department of Medical Research China Medical University Hospital China Medical University Taichung 40402 Taiwan

Institute for Chemical and Bioengineering ETH Zurich Tannenstrasse 3 Zurich CH‐8092 Switzerland

Departament de Ciència dels Materials i Química Física Institut de Química Teòrica i Computacional Barcelona 08028 Spain

ICREA Institució Catalana de Reserca i Estudis Avançats Pg. Lluís Companys 23 Barcelona 08010 Spain

Funding

European Research Council · Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung · Ministerstvo Školství, Mládeže a Tělovýchovy

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