엄영호 교수

Self-repairable materials strive to emulate curable and resilient biological tissue; however, their performance is currently insufficient for commercialization purposes because mending and toughening are mutually exclusive. Herein, we report a carbonate-type thermoplastic polyurethane elastomer that self-heals at 35 °C and exhibits a tensile strength of 43 MPa; this elastomer is as strong as the soles used in footwear. Distinctively, it has abundant carbonyl groups in soft-segments and is fully

Superior elastic recovery and rapid enzymatic degradation rate were realized by utilizing 2,5-furan dicarboxylic acid as a sustainable substitute for terephthalate.

In order to achieve high-quality 3D printing of inorganic materials, a thorough evaluation of appropriate rheological characteristics and methodologies for formulating all-inorganic inks is required. We recently reported all-inorganic inks using BiSbTe-based thermoelectric particles coupled with a chalcogenidometallate (ChaM) inorganic binder. In the current study, we analyzed the rheological behavior of the all-inorganic inks to assess printability and 3D structural retention with respect to th

Abstract With the development of wearable electronics, the use of engineered functional inks with printing technologies has attracted attention owing to its potential for applications in low‐cost, high‐throughput, and high‐performance devices. However, the improvement in conductivity and stretchability in the mass production of inks is still a challenge for practical use in wearable applications. Herein, a scalable and efficient fluid dynamics process that produces highly stretchable, conductive

The “3C-tuning” <italic>via</italic> chemical designing and nanocompositing upgrades mechanical performances of poly(butylene succinate) to a remarkable level with accelerated biodegradation.

Load-bearing fibrous tissues, like tendons, have remarkable strength with high water content (∼60%) due to the anisotropic network of collagen fibers. However, the scalability of biomimetic anisotropic hydrogels is limited by time-intensive fabrication processes involving cross-linking and stretching, often spanning several hours to days. Here, we present a rapid, scalable approach for fabricating tendon-mimetic hydrogel fibers within 1 min using the synergistic engineering of cyano- p -aramid n

Cholesteric liquid crystal elastomer fibres gain considerable attention as promising candidates for mechanochromic smart textiles across various domains, ranging from fashion to healthcare. However, intrinsically high hysteresis of cholesteric liquid crystal elastomer during stress relaxation necessitates a time-lag between successive stimulus detections, thereby constraining the practical use in real-world systems. Here, we develop high-tough and low-hysteresis mechanochromic fibres capable of