인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
ABSTRACT This study presents an amphiphilic shape‐memory hydrogel (SMH) based on poly(acrylic acid‐co‐n‐hexadecyl acrylate) [P(AAc‐co‐C16A)] that integrates pH and temperature responsiveness within a single molecular network. The hydrophobic C16 side chains form reversible crystalline domains that act as physical cross‐links, imparting thermal shape‐memory and mechanical strength, while ionizable acrylic acid units provide pH‐dependent swelling and charge regulation. An optimal composition containing 30 mol % C16A exhibited a balanced combination of mechanical robustness ( E ≈ 15 MPa), a high shape‐recovery ratio (>93 %), and a thermoresponsive transition near physiological temperature (37°C–39°C). Ibuprofen‐loaded SMHs demonstrated strongly pH‐dependent and thermally accelerated drug release, with enhanced release under mildly acidic conditions and further acceleration upon shape recovery. Cytocompatibility assays confirmed the hydrogels’ safety for normal fibroblasts, while selective cytotoxicity toward MDA‐MB‐231 breast cancer cells underscored their therapeutic potential. Overall, P(AAc‐co‐C16A) SMHs provide a molecularly tunable platform that couples shape‐memory functionality with controlled, dual‐stimulus drug delivery. Their combination of reversibility, biocompatibility, and mechanical resilience offers new opportunities for localized and on‐demand release systems in cancer therapy and next‐generation 4D‐printed biomedical devices.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.