Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Photoluminescence: Applications

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

From Atomic Layers to Moire Superlattices: Engineering Quantum Interfaces in 2D Heterostructures for Next Generation Terahertz Optoelectronics.

Small methods·2026

Same author

Exploring neuromarketing's influence on consumer impulsivity through the lens of personality traits.

Frontiers in psychology·2026

Same author

Molecular detection tool for prompt, reliable and precise diagnosis of the rice weevil, <i>Sitophilus oryzae</i> (Linnaeus) infestation in wheat.

Frontiers in plant science·2025

Same author

Probing into Intraband Transitions Enabled Charge Carrier Dynamics of THz Response Generated in Graphene/MoS<sub>2</sub> Heterostructures.

Advanced materials (Deerfield Beach, Fla.)·2025

Same author

New insights into APCVD grown monolayer MoS<sub>2</sub> using time-domain terahertz spectroscopy.

Scientific reports·2023

Same author

A Strategic Approach to Design Multi-Functional RGB Luminescent Security Pigment Based Golden Ink with Myriad Security Features to Curb Counterfeiting of Passport.

Small (Weinheim an der Bergstrasse, Germany)·2023

Search research articles

Related Experiment Video

Updated: May 16, 2025

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

Published on: December 22, 2023

Luminomagnetic Afterglow Assimilated Multi-Mode Protection with Inventive Golden Security Ink for Anticounterfeiting

Kanika Nagpal^1,2, Garima Kedawat¹, Shubhda Srivastava¹

¹Photonic Materials Metrology Sub Division, Advanced Materials and Device Metrology Division, CSIR-National Physical Laboratory, Dr K. S. Krishnan Road, New Delhi 110012, India.

ACS Applied Materials & Interfaces

|May 15, 2025

Summary

This summary is machine-generated.

Researchers developed a novel security pigment using lanthanide nanomaterials for advanced anticounterfeiting. This multi-emissive material offers dual excitation, triple emission, and afterglow features for enhanced data encryption and authentication.

Keywords:

anticounterfeiting downconversion luminomagnetic photoluminescence upconversion

More Related Videos

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

Related Experiment Videos

Last Updated: May 16, 2025

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

Author Spotlight: Eco-friendly Photoluminescent Textile Authentication with Curcumin

Published on: December 22, 2023

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Author Spotlight: Advancing Bioimaging and Therapy with Functional Nanomaterials

Published on: September 13, 2024

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Rapid Homogeneous Detection of Biological Assays Using Magnetic Modulation Biosensing System

Published on: June 13, 2010

Area of Science:

Materials Science
Nanotechnology
Analytical Chemistry

Background:

Designing luminescent multifunctional materials for anticounterfeiting with multistage excitability and data storage remains challenging.
Lanthanide-based nanomaterials offer unique spectroscopic profiles but existing technologies have limited encryption complexity.
Current anticounterfeiting methods struggle to provide robust, multi-layered security features.

Purpose of the Study:

To develop a novel dual excitable and triple emissive multifunctional security pigment.
To integrate fluorescence, phosphorescence, and magnetic properties into a single entity for advanced anticounterfeiting.
To enable data encryption and facile decryption capabilities within the security pigment.

Main Methods:

Formulation of a security pigment using a combination of NaGdF4:Eu3+, SrAl2O4:Eu2+/Dy3+, NaGdF4:Yb3+/Tm3+, and Fe3O4 magnetic nanoparticles.
Utilizing dual excitation sources (254 nm UV lamp and 980 nm laser) to achieve triple wavelength emissions.
Investigating the fluorescence, phosphorescence (afterglow), and magnetic properties of the synthesized material.

Main Results:

The pigment exhibits intense reddish-orange (609 nm), green afterglow (528 nm), and blue (474 nm) emissions under different excitation conditions.
The material demonstrates integrated afterglow upon removal of the excitation source.
The synthesized pigment shows stability under rigorous testing conditions, confirming its reliability.

Conclusions:

The developed luminomagnetic security ink, featuring multi-emissivity and afterglow, offers a promising solution for advanced anticounterfeiting.
The material's ability to encrypt and easily decrypt information enhances its security value.
The facile authentication using different excitation modes provides strong security features for practical applications.