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Updated: May 20, 2026

Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

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Published on: December 9, 2013

Triple-Level Information Encryption Enabled by Fluorescent Microspheres: Harnessing Structural Color, Fluorescence,

Chenwang Fu^1,2, Jianing Ding^1,2, Jiangnan Yan^1,2

¹State Key Laboratory of Advanced Welding and Joining (Shenzhen), Harbin Institute of Technology, Shenzhen 518055, China.

ACS Applied Materials & Interfaces

|May 19, 2026

Summary

This summary is machine-generated.

This study presents a novel triple-encryption system using fluorescent microspheres for advanced anticounterfeiting. The technology offers a cost-effective, high-security solution for authenticating high-value goods.

Keywords:

Electrohydrodynamic Printing Fluorescent Microspheres Multiencryption Anticounterfeiting Photonic Crystal Structural Color Purcell Effect

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Internalization and Observation of Fluorescent Biomolecules in Living Microorganisms via Electroporation

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Area of Science:

Materials Science
Optics
Chemistry

Background:

Growing demand for anticounterfeiting of high-value goods necessitates advanced security technologies.
Existing methods often lack multi-layered security features for robust protection.

Purpose of the Study:

To develop a triple-information encryption system for high-security anticounterfeiting applications.
To demonstrate a cost-effective strategy utilizing fluorescent microspheres and photonic crystal effects.

Main Methods:

Synthesis of monodisperse polystyrene fluorescent microspheres doped with Eu(TTA)3(TOPO)2 via emulsion polymerization.
Fabrication of full-color structural color patterns using electrohydrodynamic printing with optimized colloidal ink.
Exploitation of the Purcell effect in photonic crystals for spatially graded fluorescence enhancement.

Main Results:

Tunable microsphere diameters (132-288 nm) with intense red emission at 612 nm.
High-quality structural color patterns exhibiting angle-dependent colors and UV-switchable fluorescence.
Engineered microscopic fluorescence intensity gradient acting as a unique spectral key for authentication.

Conclusions:

The developed triple-encryption system offers a dynamic and secure anticounterfeiting solution.
This approach provides a cost-effective method for authenticating high-value goods.
The integration of structural color, fluorescence, and intensity gradients creates a robust security feature.