Fabrication of Polydiacetylene Liposome Chemosensor with Enhanced Fluorescent Self-Amplification and Its Application for Selective Detection of Cationic Surfactants

• DOI: 10.1021/acsami.6b10794
• Publication Date: 2016-09-29T11:48:17Z
• Authors: Dong-En Wang; Lei Zhao; Mao-Sen Yuan; Shu-Wei Chen; Tianbao Li; Jinyi Wang
• Keywords: Cationic polymerization; Diacetylene

Polydiacetylene (PDA) materials have been adopted as one of the powerful conjugated polymers for sensing applications due to their unique optical properties. In this paper, we present a new PDA liposome-based sensor system with enhanced fluorescent self-amplification by tuning fluorophore fluorescence emission. system, 1,8-naphthalimide derivative employed highly was incorporated into supermolecule. During formation blue liposomes, emission can be directly quenched, while thermal-induced phase transition liposomes from red readily restore These phenomena could ascribed tunable Förster energy transfer between excited and framework. To demonstrate performance newly prepared sensor, successfully applied detection cationic surfactants (CS). The results show that displayed distinct color change restoration in presence surfactant species, allowed high sensitivity selectivity. limit target CS, such cetyltrimethylammonium bromide (CTAB), reach low 184 nM. Compared traditional methods based on colorimetric fabricated superior sensitivity. Thus, our findings offer an avenue design development types sensors