Magnetically navigable 3D printed multifunctional microdevices for environmental applications
Year: 2019
Authors: Bernasconi R., Carrara E., Hoop M., Mushtaq F., Chen X.Z., Nelson B.J., Pany S., Credi C., Levi M., Magagnin L.
Autors Affiliation: Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, Via Mancinelli 7, I-20131 Milan, Italy; Swiss Fed Inst Technol, Multiscale Robot Lab, Inst Robot & Intelligent Syst, Tannenstr 3, CH-8092 Zurich, Switzerland; Politecn Milan, Dipartimento Chim Mat & Ingn Chim Giulio Natta, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy.
Abstract: Microrobotic prototypes for water cleaning are produced combining stereolithography 3D printing and wet metallization. Different metallic layers are deposited on 3D printed parts using both electroless and electrolytic deposition to impart required functionalities. In particular, by exploiting the flexibility and versatility of electrolytic codeposition, pollutants photodegradation and bacteria killing are for the first time combined on the same device by coating it with a composite nanocoating containing titania nanoparticles in a silver matrix. The microstructure of the microrobots thus obtained is fully characterized and they are successfully actuated by applying rotating magnetic fields. From the water cleaning point of view, devices show evident photocatalytic activity towards water pollutants and antimicrobial activity for gram negative bacteria.
Journal/Review: ADDITIVE MANUFACTURING
Volume: 28 Pages from: 127 to: 135
More Information: The work described in the text was carried out in the framework of the interdepartmental laboratory MEMS&3D at Politecnico di Milano, Milano, Italy. The authors would like to acknowledge networking support by the COST Action MP1407 (e-MINDS) and the SBFI Cost Project No. C16.0061 under the frame of this COST Action. They would also like to acknowledge the contribution of S. Bernasconi to the realization of some images present in the text.KeyWords: Microrobotics; Water cleaning; Photocatalysis; Titania; SilverDOI: 10.1016/j.addma.2019.04.022Citations: 46data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2024-10-20References taken from IsiWeb of Knowledge: (subscribers only)