Research​

Injectable hydrogels / 3D printable inks

Injection-on-Skin Granular Adhesive for InteractiveHuman–Machine Interface
(Advanced Materials, 2023)

This study reports on a strain-sensitivegranular adhesive inspired by the core–shell architectures of natural basil seeds for iHMI as well as human–metaverse interfacing. The granularadhesive sensor consists of easily fragmented hydropellets as a core andtissue-adhesive catecholamine layers as a shell, satisfying great on-skininjectability, ionic-electrical conductivity, and sensitive resistance changes through reversible yet robust cohesion among the hydropellets.

3D printable inks and tissue fabrication (Acta Biomater. 2018, Adv. Sci. 2019)

We are interested in developing advanced 3D printable hydrogel inks with unique physicochemical properties.​ In 3D printing techniques, polyphenol chemistry provides an insight for designing tissue-adhesive and mechanically tough ink materials. In addition to that, we have focused on exploring conductive and injectable materials for further printing of wearable/flexible, electroactive pattern.