Nanoemulsion fluorescent inks for anti-counterfeiting encryption with dual-mode, full-color, and long-term stability
Wenna Wu, Huizhong Liu, Jin Yuan, Zhuo Zhang, Ling Wang, Shuli Dong, Jingcheng Hao
Abstract
An oil-in-water nanoemulsion (O/W NE) is selected as the carrier to encapsulate hydrophobic dual-mode luminescent upconversion nanoparticles (UC NPs) and downconversion (DC) carbon quantum dots (CQDs) inside the oil droplets for forming water-based fluorescent inks. The NE inks conform well to the requirements of inkjet printing for anti-counterfeiting encryption applications.
Topics & Concepts
EncryptionFluorescenceLuminescenceDual (grammatical number)Aqueous solutionInkwellTerm (time)Dual modeMaterials scienceMode (computer interface)Chemical engineeringComputer scienceNanotechnologyOptoelectronicsChemistryComputer securityOpticsComposite materialOrganic chemistryArtHuman–computer interactionEngineeringAerospace engineeringLiteraturePhysicsQuantum mechanicsLuminescence and Fluorescent MaterialsPolydiacetylene-based materials and applicationsPhotochromic and Fluorescence Chemistry