The Institute for Tissue Engineering and Regenerative Medicine at The Chinese University of Hong Kong has developed a novel biomaterial that is mechanically strong and 3D-printable for on-site hospital manufacturing and clinical repair. Various products range includes tendon grafts, bone-tendon grafts, and ear grafts

  • PHT-GraftRepair 0
  • PHT-GraftRepair 1
  • PHT-GraftRepair 2
  • PHT-GraftRepair 3
Commercialisation opportunities
technology licensing agreement
Problem addressed

Owing to is favourable mechanical properties and 3D-printability, PHT biomaterial can be rapidly fabricated into various medical grafts, devices, and implants for on-site, personalized implant manufacturing and facilitate tissue repair that may not be possible with current state-of-the-art.

  • PHT biomaterial is mechanically strong and its strength can be tuned for various applications by post-processing methods
  • PHT biomaterial is 3D printable and can be used for on-site (hospital) manufacturing
  • Fabrication and post-processing of PHT biomaterial is facile and low-cost, enabling on-site (hospital) manufacturing
Key impact
  • High and tunable mechanical strength can increase repair efficacy
  • 3D-printability enables fabrication of geometry and structures that can reduce stress and chance of repair failure
  • 3D-printability enables on-site, personalized implant manufacturing, which reduces cost and allows for tailored medical treatment
  • For ear reconstruction, 3D printability can reduce clinician time and reduce patient morbidity (e.g., no need to harvest rib bone and carve it into an ear shape)
  • Tendon Repair: Use as a tendon graft and can have an engineered surface to better organize tissue healing
  • Bone-Tendon Repair: This replaces suture anchors and tendon graft with one contiguous device, which has less chance of mechanical failure
  • Ear Reconstruction: A ear graft with a 3D-printed structure can be fabricated to be flexible and strong. This can compete with commercial ear grafts which despite being strong are rigid and prone to brittle fracture
  • Non biomedical use as a strong 3D-printed material


  • Patent application pending
The Chinese University of Hong Kong (CUHK)

Founded in 1963, The Chinese University of Hong Kong (CUHK) is a forward-looking comprehensive research university with a global vision and a mission to combine tradition with modernity, and to bring together China and the West. CUHK teachers and students hail from all around the world. Four Nobel laureates are associated with the university, and it is the only tertiary institution in Hong Kong with recipients of the Nobel Prize, Turing Award, Fields Medal and Veblen Prize sitting as faculty in residence. CUHK graduates are connected worldwide through an extensive alumni network. CUHK undertakes a wide range of research programmes in many subject areas, and strives to provide scope for all academic staff to undertake consultancy and collaborative projects with industry.