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

You might also read

Related Articles

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

Sort by
Same author

Fully Reversible Photocontrol over DNA Intercalation with Visible Light.

Journal of the American Chemical Society·2026
Same author

Functional Blood-Brain Barrier Crossing by Biomimetic M13 Phage Vectors for Targeted Neuronal Delivery.

Advanced healthcare materials·2026
Same author

Conjugating M13 bacteriophage targeting folate receptor alpha with multiple photosensitizers: a flexible phototheranostic platform against ovarian cancer.

Journal of materials chemistry. B·2026
Same author

Martini 3 Coarse-Grain Model For Linear Perfluoroalkyl Substances.

Journal of chemical theory and computation·2026
Same author

Discrimination, Stigma and Taboo Towards the Three Ms' Working Body: A Systematic Review Around Menstruation, Maternity and Menopause.

International journal of women's health·2026
Same author

Identification of MBT3T as a new effective therapeutic option in imatinib-resistant gastrointestinal stromal tumors (GISTs).

Journal of experimental & clinical cancer research : CR·2026
Same journal

Machine-Learning-Enabled Rapid Evolution of Photoenzymes for the Asymmetric Synthesis of gem-Difluorophosphonates.

Angewandte Chemie (International ed. in English)·2026
Same journal

Sequential H<sub>2</sub>S-Triggered Redox Relay Nanoprobes for Self-Sustained Chem-Illuminating Cascade Photodynamic Therapy.

Angewandte Chemie (International ed. in English)·2026
Same journal

Quantitative Active Hydrogen Modulation via Mastering Interfacial Water Over Single Rare Earth Atom on Copper for NO<sub>3</sub> <sup>-</sup>-to-NH<sub>3</sub> Electroreduction.

Angewandte Chemie (International ed. in English)·2026
Same journal

Unveiling the Role of Hydroxyls on Catalyst Surface in CO<sub>2</sub> Hydrogenation Reaction.

Angewandte Chemie (International ed. in English)·2026
Same journal

Strain-Release Pentafluorosulfanylation of Carbonyl-Containing Disubstituted Bicyclobutanes: A Fortuitous Path to SF<sub>5</sub>-Containing Oxa[2.1.1]bicyclohexanes.

Angewandte Chemie (International ed. in English)·2026
Same journal

Quantum Spin-1/2 Rings Built From [2]Triangulene Molecular Units.

Angewandte Chemie (International ed. in English)·2026
See all related articles

Related Experiment Video

Updated: Mar 16, 2026

Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
09:11

Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications

Published on: March 22, 2020

8.5K

Photoswitchable NIR-Emitting Gold Nanoparticles.

Sara Bonacchi1, Andrea Cantelli1, Giulia Battistelli1

  • 1Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Bologna, Italy.

Angewandte Chemie (International Ed. in English)
|August 12, 2016
PubMed
Summary
This summary is machine-generated.

We demonstrated photo-switching of near-infrared (NIR) emission from gold nanoparticles (GNPs) by controlling azobenzene ligand isomerization. This enables real-time monitoring of photo-isomerization and potential for new theranostic nanomaterials.

Keywords:
goldluminescencenanoparticlesnear infraredstimuli-responsive compounds

More Related Videos

Synthesis of Gold Nanoparticle Integrated Photo-responsive Liposomes and Measurement of Their Microbubble Cavitation upon Pulse Laser Excitation
12:00

Synthesis of Gold Nanoparticle Integrated Photo-responsive Liposomes and Measurement of Their Microbubble Cavitation upon Pulse Laser Excitation

Published on: February 24, 2016

8.6K
Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method
12:39

Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method

Published on: January 15, 2012

26.3K

Related Experiment Videos

Last Updated: Mar 16, 2026

Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications
09:11

Synthesis of Near-Infrared Emitting Gold Nanoclusters for Biological Applications

Published on: March 22, 2020

8.5K
Synthesis of Gold Nanoparticle Integrated Photo-responsive Liposomes and Measurement of Their Microbubble Cavitation upon Pulse Laser Excitation
12:00

Synthesis of Gold Nanoparticle Integrated Photo-responsive Liposomes and Measurement of Their Microbubble Cavitation upon Pulse Laser Excitation

Published on: February 24, 2016

8.6K
Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method
12:39

Gold Nanostar Synthesis with a Silver Seed Mediated Growth Method

Published on: January 15, 2012

26.3K

Area of Science:

  • Nanomaterials Science
  • Photochemistry
  • Biomedical Engineering

Background:

  • Gold nanoparticles (GNPs) exhibit tunable near-infrared (NIR) emission.
  • Azobenzene derivatives are photo-switchable molecules with potential in stimuli-responsive systems.
  • Controlling nanoparticle properties via external stimuli is crucial for advanced applications.

Purpose of the Study:

  • To demonstrate photo-switching of GNP NIR emission by controlling azobenzene ligand photo-isomerization.
  • To investigate the underlying photophysical processes, including excitation energy transfer.
  • To explore the potential of this system for real-time monitoring and theranostic applications.

Main Methods:

  • Synthesizing azobenzene-functionalized gold nanoparticles.
  • Utilizing photophysical techniques (absorption and luminescence spectroscopy) to study photo-isomerization.
  • Employing a dedicated setup for simultaneous real-time monitoring of absorbance and luminescence changes.
  • Comparing photo-isomerization rates in solution versus on the GNP surface.

Main Results:

  • Photo-switching of GNP NIR emission was achieved via azobenzene ligand photo-isomerization.
  • Excitation energy transfer from ligands to GNPs was confirmed, sensitizing NIR emission.
  • Trans-to-cis photo-isomerization significantly decreased GNP NIR emission.
  • Ligand photo-isomerization rates on the GNP surface were similar to those in solution, indicating energy transfer assists isomerization.
  • Real-time monitoring of photo-isomerization was successfully demonstrated using ratiometric NIR detection.

Conclusions:

  • Azobenzene-functionalized GNPs offer a platform for stimuli-responsive NIR emission.
  • Excitation energy transfer plays a key role in the observed photo-switching phenomenon.
  • This system provides a method for real-time monitoring of photo-isomerization.
  • The findings support the development of novel NIR-emitting, stimuli-responsive nanomaterials for theranostics.