NIT Rourkela Innovates with Patented Bio-Ink for Advanced 3D Bioprinting
A groundbreaking development in the field of biomedical engineering has emerged from the National Institute of Technology, Rourkela (NITR). A dedicated research team has successfully created a novel bio-ink designed specifically for 3D bioprinting and tissue engineering applications. This innovation addresses critical limitations in current technologies and holds promise for revolutionizing regenerative medicine.
Addressing Key Challenges in Bioprinting
Bio-inks are essential materials used in 3D bioprinting to fabricate tissue-like structures. However, the widespread adoption of this technology has been hindered by the lack of bio-inks that effectively combine mechanical strength, biological compatibility, and printability. To overcome this challenge, Associate Professor Devendra Verma, along with research scholars Shreya Chrungoo and Tanmay Bharadwaj from the Department of Biotechnology and Medical Engineering at NIT Rourkela, developed a high shape-fidelity protein-polysaccharide composite bio-ink.
This newly developed bio-ink is particularly effective for bone and cartilage repair, as confirmed by lab-scale trials. The research findings have been published in the prestigious International Journal of Biological Macromolecules, highlighting the scientific rigor and significance of this work.
Patent Secured for Innovative Technology
The research team, comprising Devendra Verma and Shreya Chrungoo, has secured a patent for their technology, titled 'A High Shape-Fidelity Protein-Polysaccharide Composite Bioink for 3D Bioprinting'. The patent was officially granted on March 18, 2026, as announced in a press release issued by NITR on Monday. This legal protection underscores the novelty and potential impact of their invention in the biomedical field.
Composition and Unique Features of the Bio-Ink
To achieve the desired properties, the team combined bovine serum albumin (BSA), sodium alginate, and polyelectrolyte complexes of gelatin and chitosan (PEC-GC). This blend created a bioactive system that supports cell growth while maintaining structural fidelity during and after the printing process.
Devendra Verma explained the unique aspect of their bio-ink: "Our goal was to bridge the long-standing gap between printability and biological performance in bio-inks. By integrating protein-polysaccharide interactions with nanofibrous complexes, we have developed a system that not only prints with high precision but also actively supports cellular functions and tissue regeneration. This brings us a step closer to clinically relevant bioprinted constructs."
Promising Results from Laboratory Trials
In lab-scale trials, the developed bio-ink demonstrated remarkable capabilities:
- It mimics the extracellular matrix of bone tissue, providing optimal sites for cell attachment.
- It promotes cell adhesion, proliferation, and overall biological response.
- The printed scaffolds exhibit strong mechanical properties, helping retain shape and functionality post-printing.
- Experiments showed that scaffolds containing 2% PEC-GC achieved over 90% cell viability.
- It demonstrated potential for bone tissue formation and collagen synthesis.
Real-World Applications and Future Steps
Research scholar Shreya Chrungoo highlighted the practical usability of the bio-ink: "The developed bio-ink offers a versatile platform for fabricating patient-specific scaffolds with precise geometry and biological functionality. Its ability to support high cell viability and tissue-like behaviour makes it promising for applications in regenerative medicine."
The press release further outlined the next phases of research:
- The team plans to undertake animal studies to establish the safety and efficacy of the bio-ink.
- This will be followed by clinical studies for validation and potential therapeutic use.
The developed bio-ink holds significant potential for regenerative medicine, enabling the fabrication of patient-specific, tissue-like structures and opening new avenues in personalized healthcare and therapeutic applications. This innovation from NIT Rourkela marks a pivotal step forward in the global effort to advance 3D bioprinting technologies for medical treatments.
