Cell 'snowball' may be answer to large-scale tissue engineering
Why it matters: This technology could enable commercial-scale tissue engineering and organ biofabrication, addressing critical needs for patients.
- Penn State researchers invented a new technology for biohybrid spheroids that rapidly self-assemble, or 'snowball,' in size.
- Amir Sheikhi, an associate professor at Penn State, highlights that traditional cell spheroids suffer from limited oxygen and nutrient penetration, difficulty in growing to sufficient size, and an initial lack of extracellular matrix.
- Biohybrid spheroids integrate living cells and microgels to mimic supportive tissue, allowing oxygen and nutrients to reach inner cells while growing larger.
- The team plans to further develop these biohybrid spheroids to mimic tissue properties, aiming for commercial-scale tissue engineering and organ biofabrication.
- Zaman Ataie et al. published the details of this cellular snowballing technology in Advanced Science (2026), with the DOI: 10.1002/advs.202511302.
Penn State researchers have developed a groundbreaking 'cellular snowball' technology, detailed in Advanced Science, that overcomes critical limitations of traditional cell spheroids by enabling rapid self-assembly and improved nutrient delivery. This innovation, combining living cells with microgels, addresses issues like oxygen deprivation and lack of extracellular matrix, paving the way for large-scale tissue engineering and organ biofabrication.
