@article{singh2019multifunctional, title = {Multifunctional magnetic hairbot for untethered osteogenesis, ultrasound contrast imaging and drug delivery}, author = {Singh, Ajay Vikram and Ansari, Mohammad Hasan Dad and Dayan, Cem Balda and Giltinan, Joshua and Wang, Shuo and Yu, Yan and Kishore, Vimal and Laux, Peter and Luch, Andreas and Sitti, Metin}, journal = {Biomaterials}, volume = {219}, pages = {119394}, publisher = {Elsevier}, year = {2019}, doi = {} }