大学化学2024，Vol.39Issue(5)：172-183,12.DOI:10.3866/PKU.DXHX202310125
智能水凝胶世界
The Realm of Smart Hydrogels
摘要
Abstract
Smart hydrogels,characterized by their highly hydrophilic three-dimensional network structures,possess the ability to swiftly sense and respond to changes in their environment.This project harnesses alginate extracted from edible kelp,cross-linking it with various metal ions to craft alginate hydrogels.These hydrogels exhibit remarkable responsiveness,effectively distinguishing between hard and soft water while also facilitating the analysis of vitamin C and metal ion concentrations.Through a series of engaging experiments,this endeavor elucidates the formation mechanisms and practical applications of intelligent hydrogels.Preschoolers and primary school students engage in simple yet colorful hydrogel preparations,fostering a sense of excitement.Meanwhile,middle school students and the general public can participate in extracting alginic acid from kelp using everyday kitchen utensils,subsequently utilizing the resulting hydrogels for water hardness recognition and vitamin C analysis in fruits.Such hands-on experiences not only ignite curiosity but also promote the integration of chemistry into daily life,stimulating interest and enthusiasm for the subject.College students,through advanced experiments,delve into the analysis of iron ion concentrations and vitamin C content using photometric methods.This project seamlessly merges entertainment,practicality,and scientific inquiry,offering a feasible and enriching educational experience.It is poised to bridge the gap between chemistry and everyday life,serving the public,and fostering broader understanding and engagement with the field.关键词
智能水凝胶/海藻酸/金属离子响应/铁离子测定/维生素C检测Key words
Intelligent hydrogels/Sodium alginate/Metal ion response/Iron ion detection/Vitamin C analysis分类
社会科学引用本文复制引用
杨跃娜,胡旭芳,刘玉珊,况亚亚,凌剑,曹秋娥,周川华..智能水凝胶世界[J].大学化学,2024,39(5):172-183,12.基金项目
云南大学教育教学改革研究项目(2023Y44) （2023Y44）
