介孔材料
纤维素
材料科学
超分子化学
纤维素乙醇
纳米技术
纳米复合材料
液晶
纤维素纤维
化学工程
有机化学
化学
分子
催化作用
光电子学
工程类
作者
Michael Giese,Lina K. Blusch,Mostofa K. Khan,Wadood Y. Hamad,Mark J. MacLachlan
标识
DOI:10.1002/anie.201402214
摘要
Cellulose-based materials have been and continue to be exceptionally important for humankind. Considering the bioavailability and societal relevance of cellulose, turning this renewable resource into an active material is a vital step towards sustainability. Herein we report a new form of cellulose-derived material that combines tunable photonic properties with a unique mesoporous structure resulting from a new supramolecular cotemplating method. A composite of cellulose nanocrystals and a urea-formaldehyde resin organizes into a chiral nematic assembly, which yields a chiral nematic mesoporous continuum of desulfated cellulose nanocrystals after alkaline treatment. The mesoporous photonic cellulose (MPC) films undergo rapid and reversible changes in color upon swelling, and can be used for pressure sensing. These new active mesoporous cellulosic materials have potential applications in biosensing, optics, functional membranes, chiral separation, and tissue engineering.
科研通智能强力驱动
Strongly Powered by AbleSci AI