Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

1.6K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
1.6K
Photoluminescence: Applications01:14

Photoluminescence: Applications

383
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...
383

You might also read

Related Articles

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

Sort by
Same author

Leveraging Solvatochromic and Mechanochromic Properties of Donor-Acceptor-Donor (D-A-D) Imines for Multimodal Information Encryption.

Chemistry (Weinheim an der Bergstrasse, Germany)·2026
Same author

Easily Accessible and Up-Scalable Aliphatic Bis-Formamides with Afterglow Luminescence: Photoluminescence Properties and Applications.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Multifunctional Manganese-Based Nanocomposites for Enhanced Immunotherapy by Regulating Lactate Metabolism and Activating the cGAS-STING Pathway.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Photoinduced radical emission from flexible organic crystals.

Light, science & applications·2026
Same author

Multistate photoswitches beyond on and off.

Nature communications·2026
Same author

Molecular Recognition-Driven Reaction-Based Sensing of Catecholamines in a Lipid Nanoreactor.

Journal of the American Chemical Society·2026

Related Experiment Video

Updated: Jun 12, 2025

Building a Simple and Versatile Illumination System for Optogenetic Experiments
06:41

Building a Simple and Versatile Illumination System for Optogenetic Experiments

Published on: January 12, 2021

3.8K

Visible-Light-Driven Solid-State Fluorescent Photoswitches for High-Level Information Encryption.

Zhiyuan Han1, Meixia He1, Gang Wang2

  • 1Institute of Advanced Materials and School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, China.

Angewandte Chemie (International Ed. in English)
|September 25, 2024
PubMed
Summary

Researchers developed novel solid-state fluorescent photoswitches using Schiff bases and naphthalimide fluorophores. These materials exhibit reversible, visible-light-driven color and fluorescence changes, enabling advanced information encryption.

Keywords:
ESIPThigh-level information encryptionimine photoswitchsolid-state photochromismvisible light

More Related Videos

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
12:51

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

9.8K
Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts
10:33

Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts

Published on: March 8, 2017

8.2K

Related Experiment Videos

Last Updated: Jun 12, 2025

Building a Simple and Versatile Illumination System for Optogenetic Experiments
06:41

Building a Simple and Versatile Illumination System for Optogenetic Experiments

Published on: January 12, 2021

3.8K
A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles
12:51

A 'Plug and Play' Method to Create Water-dispersible Nanoassemblies Containing an Amphiphilic Polymer, Organic Dyes and Upconverting Nanoparticles

Published on: November 14, 2015

9.8K
Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts
10:33

Local Field Fluorescence Microscopy: Imaging Cellular Signals in Intact Hearts

Published on: March 8, 2017

8.2K

Area of Science:

  • Materials Science
  • Organic Chemistry
  • Photochemistry

Background:

  • Developing solid-state fluorescent photoswitches activated by visible light is a significant challenge.
  • Existing photoswitches often rely on salicylaldimine structures and excited-state intramolecular proton transfer (ESIPT) with cis-trans isomerization.

Purpose of the Study:

  • To design and synthesize novel Schiff base-based photoswitches incorporating naphthalimide fluorophores.
  • To achieve visible-light-driven, dual-mode (color and fluorescence) switching in the solid state.
  • To explore the potential of these photoswitches for applications in information encryption.

Main Methods:

  • Incorporation of a bulky naphthalimide fluorophore into a Schiff base structure.
  • Investigation of photoswitching behavior under visible-light irradiation.
  • Mechanism studies involving ESIPT and cis-trans isomerization.
  • Demonstration of applications like photopatterning and information encoding.

Main Results:

  • Three novel photoswitches were synthesized, exhibiting dual-mode changes (color and fluorescence) in the solid state.
  • The optimal photoswitch displayed triple fluorescence changes (green, yellow, orange) upon visible-light irradiation.
  • The switching process was reversible, repeatable over 10 cycles with good photo-fatigue resistance.
  • Naphthalimide group facilitated multicolor emission and induced a folded structure, enhancing ESIPT and isomerization.

Conclusions:

  • A reliable strategy for visible-light-driven fluorescent photoswitches in the solid state was established.
  • The developed photoswitches show promise for advanced information encryption and transient information recording.
  • The findings contribute to the field of smart materials with tunable optical properties.