Nanochon, LLC, was founded in 2016 by Dr.s Ben Holmes and Nathan Castro, Ph.D. Both studied under Dr. Grace Zhang in the Bioengineering Laboratory for Nanomedicine and Tissue Engineering at the George Washington University.

Research and innovation are the core of Nanochon’s work. Dr. Holmes has recently completed a small animal study with the Chief of Orthopedic Surgery and Sports Medicine at Children’s National Medical Center and research faculty within the Sheikh Zayed Institute for Pediatric Surgical Innovation. Dr. Castro is also currently serving as a postdoctoral fellow In Dietmar Hutmacher’s world renowned 3-D printing lab at Queensland University of Technology. 

In 2017 Nanochon received a Phase I SBIR from the National Science Foundation. The team has executed a manufacturing feasibility study with Materialise, a leader in 3D printed implants, and a proof of concept in a large animal model with CARE Research (Ft Collins CO).

Photo Credit:  Peter Hellberg

Benjamin Holmes

Chief Executive Officer

Dr. Holmes received a BS in Mechanical and Aerospace Engineering from the University of Virginia, where he focused on material science, biomedical engineering, and energy engineering. At the George Washington University, his work focused on new materials and 3-D printing for stem cell growth and orthopedic tissue repair. Dr. Holmes has been awarded several patents, published numerous journal articles, and contributed a chapter to the book Tissue and Organ Regeneration: Advances in Micro- and Nanotechnology (Pan Stanford Publishing, 2014). In addition to research, he has a strong record in entrepreneurship, having participated in the National Science Foundation’s I-Corps program on the local and national levels and VentrueWell’s ASPIRE program for medical device companies. Dr. Holmes has also demonstrated a strong early stage funding track record, bringing the company an National Science Foundation I-coprs grant, a Pediatric Orthopedic Society of North America research grant and most recently a Phase I SBIR award from the NSF. 

Photo Credit:  Mitya Ku

Nathan Castro

Chief Technology Officer

Dr. Castro completing his PhD at the George Washington University in Mechanical and Aerospace Engineering, working as a Provost Fellow and Lab Manager of the Bioengineering Laboratory for Nanomedicine and Tissue Engineering. At GWU Nathan developed 3-D printable bioactive scaffolds for tissue regeneration and pathophysiology.  He earned a BS in Chemistry with Honors from the University of Texas at El Paso, following which he completed an MS in Engineering at UTEP with a focus on 3-D printing and device manufacture. Nathan has published several scholarly journal articles, contributed to several books, and has been an author of four patents.  As co-founder of Nanochon, his main focus is in the design, development, and optimization of medical devices related to complex joint repair.


Advisory board

Nanochon has a strong group of dedicated advisors with a wealth of experience in medical device design and manufacturing, sports and veterinary medicine and scientific research 

Key Team Members

  • Chris Cannova MD
  • John Rodriguez
  • Matthew Scherer
  • Matthew Cunningham
  • Darwin Rinderer

Clinical Advisory Board

  • Jon Godin MD
  • Kevin Kaplan MD
  • Jorge Chahla MD
  • Mike Maloney MD
  • TBD
  • TBD
  • TBD

Other Advisors

  • Matthew Dowling PhD
  • Rajan Bawa PhD
  • Andy Carter PhD
  • Grace Zhang PhD
  • Matthew Oetgen MD
  • Jennifer Barrett DVM
  • Laurie Goodrich DVM