大学化学2026，Vol.41Issue(5)：14-25,12.DOI:10.12461/PKU.DXHX202510001
分子盾牌:解锁防晒的化学密码
Molecular shield:decoding the chemistry principles of UV protection
摘要
Abstract
Sunlight's ultraviolet(UV)radiation presents a double-edged phenomenon.While moderate exposure confers notable benefits,excessive UV exposure can induce skin damage and potentially lead to carcinogenesis.Sunscreen agents function as customized"molecular shields"for the skin,utilizing their distinctive physicochemical properties to establish a robust defensive barrier against UV radiation.This study systematically investigates the underlying chemical mechanisms of UV protection through comprehensive performance evaluations of both laboratory-formulated sunscreen emulsions and commercial products.Employing UV spectrophotometry,UV power meter,and UV indicating card across multiple assessment dimensions,we demonstrate the variations among different sunscreen agents and sun protection factor(SPF)values,successfully correlating protective efficacy with active components.This work further innovatively develops engaging experiments including UV visualization and hands-on sunscreen formulation,effectively translating complex photoprotection principles into accessible science popularization practices.This approach establishes a complete public education framework spanning from fundamental knowledge to practical protection strategies,seamlessly integrating UV protection awareness into daily life.Our work fosters scientific understanding of"photoprotection for photohealth",enabling the public to safely enjoy sunlight while appreciating chemistry's remarkable contributions to modern living.关键词
太阳光/紫外线/防晒/分子盾牌/科普Key words
Sunlight/Ultraviolet/UV protection/Molecular shield/Science popularization分类
社会科学引用本文复制引用
胡昌佳,李思诺,蒋文,吴汭洋,阮文红,赖瑢..分子盾牌:解锁防晒的化学密码[J].大学化学,2026,41(5):14-25,12.基金项目
中山大学教学质量与教学改革工程类项目(31000-12220011) （31000-12220011）
