大阪大学 · Materials Science
Yu-I Hsu 교수의 연구실은 생분해성 고분자 및 나노셀룰로오스 기반 기능성 수화젤을 중심으로, 지속 가능한 소재 개발에 주력하고 있습니다. 특히 수중에서 안정적인 전기적·기계적 성능을 확보한 웨어러블 센서, 생체친화성 빛 발광 수화젤, 그리고 해양에서 빠르게 분해되는 바이오플라스틱 등 실용적 응용을 겨냥한 나노복합재료 설계가 핵심 연구 방향입니다. 다양한 생물학적 원료를 활용한 녹색 합성 기반의 고성능 소재 개발이 강점입니다.
표시된 성과는 수집된 데이터 기준으로 산출되며, 일부 차이가 있을 수 있습니다.
Luminescent hydrogels with flexibility and biocompatibility have attracted considerable interest in anti-counterfeiting application. However, conventional luminous substance is prone to release into the surrounding environment, causing accumulation and biotoxicity. The green synthesis of repeatable fluorescent materials from biomass remains challenging. Herein, we report the assembly of nano-cellulose hydrogel doped with naturally originated and multiple active sited carbon dots (CDs) and demons
The wearable electronic technique is increasingly becoming an effective approach to overcoming the communication obstacles between signers and non-signers. However, the efficacy of conducting hydrogels currently proposed as flexible sensor devices is hindered by their poor processability and matrix mismatch, which frequently results in adhesion failure at the combined interfaces and deterioration of mechanical and electrochemical performance. Herein, we propose a hydrogel composed of a rigid mat
Functionalized hydrogels integrating soft nature and electrical properties are of great significance for the development of human–machine interfaces, smart wearable devices, and biomimetics robotics. However, the hydrogel-based flexible sensors are inevitably utilized in aquatic environments, resulting in swelling-induced inferior mechanical performance, skin-component delamination, and monitoring malfunction. Herein, a multiple dynamic-bond-driven hydrophobic association hydrogel with reliable
In this study, we investigated the effect of the addition of cellulose nanofiber (CNF) fillers on the performance of poly(lactic acid) (PLA). Modification of the hydroxyl group of cellulose to the acyl group by acid anhydrides changed the compatibility of the CNF with PLA. CNF was modified by acetic anhydride, propionic anhydride, and butyric anhydride to form surface-modified acetylated CNF (CNFa), propionylated CNF (CNFp), and butyrylated CNF (CNFb), respectively, to improve the compatibility
In this work, nanocomposites of poly(methyl methacrylate) (PMMA) with cellulose nanofiber (CNF) were prepared by a solution casting technique. CNF was modified by propionic anhydride (PA) to form surface-propionylated CNF (CNFp) to improve its compatibility with the PMMA matrix. CNF, CNFp, and acetylated CNF were compared with respect to their influence as fillers in PMMA composite films by ultraviolet-visible transmittance, haze values, tensile strength testing, and water contact angle measurem
pH-responsive hydrogels are important for oral drug release applications, and they are increasingly demanded to reduce the adverse side effects of drug release and improve drug absorption. In this study, a new type of pH-responsive hydrogel comprised of poly(γ-glutamic acid) modified with tyramine (PGA-Tyr) was developed through enzymatic cross-linking in the presence of horseradish peroxidase (HRP) and hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). The gelation rate, stiffness, swelling behavi
