1. Department of Chemical, Materials & Industrial Production Engineering University of Naples Federico II Naples 80125 Italy
2. Center for Advanced Biomaterials for Health Care (iit@CRIB) Italian Institute of Technology Naples 80125 Italy
3. Center for Micro‐BioRobotics Istituto Italiano di Tecnologia (IIT) Viale R. Piaggio 34, 56025 Pontedera Pisa Italy
4. Paediatric Dentistry and Orthodontics, Faculty of Dentistry, Prince Philip Dental Hospital The University of Hong Kong Hong Kong SAR China
5. Department of Biotechnology Indian Institute of Technology Kharagpur 721302 India
6. Department of Bioengineering Center for Minimally Invasive Therapeutics University of California, Los Angeles Los Angeles CA 90095 USA
7. The Graduate School Augusta University Augusta GA 30912 USA