[2PS-266]
Rapidly interfacially gelling electrochromic DNA bioink for bioprinting
발표자민재경 (서울시립대학교)
연구책임자이종범 (서울시립대학교)
Abstract
Recent advances in biofabrication demand bioinks that are responsive to dynamic biological and electrical cues. We introduced a DNA–viologen hybrid bioink system,enabling precise spatial control of gelation without requiring external triggers, while exhibiting a hollow capsule morphology, tunable viscoelasticity, and excellent printability suitable for soft tissue-direct patterning applications.1,1′-diheptyl-4,4′-bipyridinium (DHV) as a viologen has been particularly favored for its enhanced hydrophobicity, improved interfacial stability, and robust electrochromic performance, reducibility which have supported its broad adoption and continued expansion in electroactive and biointegrated material systems. Here, we introduce DNA–DHV-based materials can serve as redox-active substrates, enabling reactions with a variety of materials, including gold solutions, and thereby offering versatile opportunities for diverse applications.