文献类型：期刊文献

英文题名：Dual-Stimuli-Responsive Naphthalimide-Spiropyran Hybrids for Reversible Optical Printing and Multilevel Anticounterfeiting Applications

作者：Yan, Jiabao[1];Fan, Ji[1,2];Zhan, Zirun[1];Zheng, Zhaofeng[1];Lin, Ziyun[1];Wang, Yu[2];Li, Xu[1];Li, Hongqi[1]

机构：[1]Donghua Univ, Coll Chem & Chem Engn, Key Lab Sci & Technol Ecotext, Minist Educ, Shanghai 201620, Peoples R China;[2]Shaoxing Univ, Key Lab Clean Dyeing & Finishing Technol Zhejiang, Shaoxing 312000, Peoples R China

年份：2025

外文期刊名：ACS APPLIED OPTICAL MATERIALS

收录：ESCI(收录号：WOS:001542754500001)、Scopus(收录号：2-s2.0-105014271357)、WOS

基金：This work was financially supported by the Opening Project of Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province (No. QJRZ2313).

语种：英文

外文关键词：spiropyran derivative; photochromism; mechanochromism; cotton fabric; information encryption

外文摘要：Stimuli-responsive materials have attracted extensive attention in recent years due to their broad application prospects in data storage, drug release, sensing, and anticounterfeiting. In this study, a naphthalimide-conjugated spiropyran derivative (NSP) has been synthesized and characterized. NSP exhibits dual-stimuli-responsive properties of photochromism and mechanochromism. Due to its intramolecular charge transfer characteristics, the NSP solution demonstrates excellent photochromic behavior (a yellow-to-purple transition) and dual fluorescence switching characteristics (from yellow to orange-red emission). Under mechanical stimulation, the internal packing structure of the NSP powder is modified, endowing it with analogous reversible color-changing and fluorescence-switching capabilities. Furthermore, photochromic-functionalized cotton fabrics (PCF) capable of real-time dual optical signal output (color transition and fluorescence emission) have been fabricated using textile dyeing and finishing technology, demonstrating high color contrast/resolution, superior reversibility, and convenient multicolor patterning features. Leveraging this efficient and reversible photochromic behavior, we successfully demonstrate that PCF serves as an excellent material for rewritable optical printing and a multilevel anticounterfeiting material for dynamic information encryption.