title: Magnetic-graphitic-nanocapsule templated diacetylene assembly and photopolymerization for sensing and multicoded anti-counterfeiting.
abstract: Molecular self-assembly, a process to design molecular entities to aggregate into desired structures, represents a promising bottom-up route towards precise construction of functional systems. Here we report a multifunctional, self-assembled system based on magnetic-graphitic-nanocapsule (MGN) templated diacetylene assembly and photopolymerization. The as-prepared assembly system maintains the unique color and fluorescence change properties of the polydiacetylene (PDA) polymers, while also pursues the superior Raman, NIR, magnetic and superconducting properties from the MGN template. Based on both fluorescence and magnetic resonance imaging (MRI) T2 relaxivity, the MGN@PDA system could efficiently monitor the pH variations which could be used as a pH sensor. The MGN@PDA system further demonstrates potential as unique ink for anti-counterfeiting applications. Reversible color change, strong and unique Raman scattering and fluorescence emission, sensitive NIR thermal response, and distinctive magnetic properties afford this assembly system with multicoded anti-counterfeiting capabilities.
authors.affiliation: Molecular Science and Biomedicine Laboratory, State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, College of Biology, Hunan University, Changsha, 410082, China. zhuochen@hnu.edu.cn tan@chem.ufl.edu.
authors.forename: Xiang-Kun
authors.initials: XK
authors.lastname: Nie
authors.forename: Yi-Ting
authors.initials: YT
authors.lastname: Xu
authors.forename: Zhi-Ling
authors.initials: ZL
authors.lastname: Song
authors.forename: Ding
authors.initials: D
authors.lastname: Ding
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.forename: Hao
authors.initials: H
authors.lastname: Liang
authors.forename: Long
authors.initials: L
authors.lastname: Chen
authors.forename: Xia
authors.initials: X
authors.lastname: Bian
authors.forename: Zhuo
authors.initials: Z
authors.lastname: Chen
authors.forename: Weihong
authors.initials: W
authors.lastname: Tan