Dr. Holmes received a B.S. in Mechanical and Aerospace Engineering from The University of Virginia, where he focused on material science, biomedical engineering and energy engineering.

Working in mechanical / civil / electrical design and project management for rail transit, he received his PhD in Mechanical and Aerospace Engineering from The George Washington University in 2015. He has concentrated on tissue engineering, biomaterials and nanomedicine, with a focus on carbon nanomaterial polymer composites for cartilage repair, and 3D printing of thermoplastics, hydrogels and elastomers / other novel and composite polymers for bone, osteochondral reconstruction, vascularized bone growth and cancer metastasis modeling. He has explored chemical functionalization and nanomaterials for surface modification, mechanical property modulation and drug delivery.

HE joined the SonoStik team in 2013, helping to design and fully realize a prototype of the introducer device.