Custom-Printed Photocurable Ceramic Resins: Innovation Reshaping Orthopaedics and Industry
Researchers from PK Krakow University of Technology (PK KUT) and the Polish Academy of Sciences (PAS) have developed biocompatible, photocurable ceramic resins for biomedical and industrial use. The new material, which mimics the structure, porosity, and durability of human bone, can be used for rapid 3D printing of custom endoprostheses and implants. “In the future, this solution will allow doctors to print a perfectly fitted implant for each patient, right at the hospital. This is no longer science fiction. It is only a matter of time,” says Professor Joanna Ortyl, DSc. These ceramic resins, notable for their durability and cost-effective production, could also find applications in other sectors, such as the aviation and automotive industries.
Innovative Materials Tailored to Patient Needs
The project titled “Innovative Porous Ceramic Materials Printed Using DLP Technology with High-Performance Photochemical Initiators for Bone Integration” has the potential to change how bone implants are made. The interdisciplinary team includes scientists from several units, including the Laboratory of Photochemistry and Optical Spectroscopy, a research group led by Prof. Joanna Ortyl. The research team comprises scientists and students from the Faculty of Chemical Engineering and Technology: MSc Magdalena Jankowska, MSc Weronika Wałczyk, Dr Andrzej Świeży, MSc Małgorzata Noworyta, BSc Barbara Sajdak, and BSc Aleksandra Barczyk. The project mentor is Prof. Ortyl, supported by Dr Anna Jarzębska and Dr Łukasz Maj (Institute of Metallurgy and Materials Engineering, PAS). “Our technology could benefit patients with degenerative joint diseases, post-traumatic injuries, or bone defects following oncological surgery, all of whom require durable, lightweight, and individually tailored ceramic implants,” explains Dr Klaudia Trembecka-Wójciga, project leader from the Faculty of Chemical Engineering and Technology at PK KUT and the Institute of Metallurgy and Materials Engineering at PAS.
Photocurable Resins from a 3D Printer – Safe, Fast, Eco-Friendly
The response to the market’s need for personalised ceramic implants is the use of additive manufacturing, or 3D printing. “Besides shortening production time and reducing costs, it also ensures the constructs are tailored to individual patient needs. This will lead to greater availability of endoprosthesis services, lower prices, and improved quality of life for patients,” says Dr Trembecka-Wójciga. Ceramic hip implants offer high biocompatibility, excellent wear and corrosion resistance, and controlled porosity. They are “stronger and last longer compared to their metal counterparts. However, their manufacturing process is complicated, which increases production costs and limits their availability,” she adds. To address these challenges, the researchers are using additive manufacturing—3D printing and produce personalised ceramic implants more efficiently and affordably. “Beyond faster production and lower costs, this method allows us to tailor implants to the patient’s unique anatomy,” says Dr Trembecka-Wójciga.
Mimicking Nature with Precision
A key aspect was to create a material that replicates the porous structure of bone. “We use zirconia-based bioceramics, known for mechanical strength and wear resistance. Bone is not homogeneous—it has a complex structure. We strive to mimic nature, so the implant functions as well as natural bone tissue. 3D printing allows us to design gradient porosity and replicate the internal bone structure,” explains Prof Ortyl. The ceramic material is biocompatible, non-toxic, and non-allergenic, meaning it will not be rejected by the body. “Additionally, its high friction coefficient ensures that it retains its properties longer than metallic materials,” notes Dr Trembecka-Wójciga. The photocurable ceramic resin enables Digital Light Processing (DLP) 3D printing, ensuring not only precision and high quality but also accurate shape replication. “We can scan a bone defect and print an implant tailored to a specific patient. This is a major advantage, especially for children or individuals with atypical anatomy,” emphasises Dr Trembecka-Wójciga. The researchers note that the project’s goal is to create a photocurable resin that can be used in existing DLP printers. “There are excellent printers on the market, but there is a lack of suitable materials. We provide the technology to print biomedical implants without the need to modify the equipment,” Prof Ortyl adds.
Broader industrial applications
The team is currently preparing a patent application. Simultaneously, talks are underway with business partners regarding commercialisation, both through a licensing model and a potential start-up. Although the project primarily targets biomedical applications, the resin can also be used in the automotive and aerospace industries or for rapid prototyping. “Our resin is a true breakthrough. There is no other photocurable, densely ceramic-filled material on the market. This opens new possibilities wherever strength and precision are critical,” notes Dr Trembecka-Wójciga.
Funding and Recognition
The project is funded by the National Centre for Research and Development under the 13th edition of the “Lider” programme (No. 13/0081/2011). This year, the PK KUT solution received the Kraków Without Barriers award, recognising individuals, institutions, and companies facilitating accessibility for people with disabilities in urban areas.
Funding and Recognition
The project is funded by the National Centre for Research and Development under the 13th edition of the “Lider” programme (No. 13/0081/2011). This year, the PK KUT solution received the Kraków Without Barriers award, recognising individuals, institutions, and companies facilitating accessibility for people with disabilities in urban areas.
In the photos:
- Innovative ceramic elements printed using the technology developed at PK Krakow University of Technology.
- Dr Klaudia Trembecka-Wójciga and Prof Joanna Ortyl, DSc, receiving the “Kraków Without Barriers” award. Photo: Jan Zych
