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

¹H NMR: Interpreting Distorted and Overlapping Signals01:02

¹H NMR: Interpreting Distorted and Overlapping Signals

1.3K
Spin systems where the difference in chemical shifts of the coupled nuclei is greater than ten times J are called first-order spin systems. These nuclei are weakly coupled, and their chemical shifts and coupling constant can generally be estimated from the well-separated signals in the spectrum.
As Δν decreases and the signals move closer, the doublets appear increasingly distorted. The intensities of the inner lines increase at the cost of those of the outer lines as the signals are...
1.3K
Nuclear Overhauser Enhancement (NOE)01:06

Nuclear Overhauser Enhancement (NOE)

1.3K
Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...
1.3K
Mass Spectrum: Interpretation01:24

Mass Spectrum: Interpretation

4.1K
An unknown compound can be established by identifying the molecular ion peak in the mass spectrum. The molecular ion peak is often weak or absent due to the predominance of fragmentation in high-energy electron beams. In such cases, a soft-energy electron beam can be used to scan the spectrum to enhance the intensity of the molecular ion peak. Additionally, chemical ionization, field ionization, and desorption ionization spectra are used to obtain a relatively intense molecular ion peak.To...
4.1K
Tandem Mass Spectrometry01:21

Tandem Mass Spectrometry

3.0K
Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...
3.0K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

870
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
870

You might also read

Related Articles

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

Sort by
Same author

The Origin of Single-Molecule Sensitivity in Label-Free Solution-Phase Optical Microcavity Detection.

ACS nano·2025
Same author

Charge Transfer-Induced Weakening of Vibronic Coupling for Single Terrylene Molecules Adsorbed onto Hexagonal Boron Nitride.

The journal of physical chemistry letters·2025
Same author

Magnetization Switching of Single Magnetite Nanoparticles Monitored Optically.

Nano letters·2024
Same author

Single-Particle Photothermal Circular Dichroism and Photothermal Magnetic Circular Dichroism Microscopy.

Nano letters·2024
Same author

Future Paths in Cryogenic Single-Molecule Fluorescence Spectroscopy.

The journal of physical chemistry. C, Nanomaterials and interfaces·2024
Same author

Probing the in-plane dipole moment vector between ground and excited state of single molecules by the Stark effect.

Chemphyschem : a European journal of chemical physics and physical chemistry·2024
Same journal

Spatially and Chemically Specific Optical Control of Cells via Supervised and Automated Target Selection.

ACS photonics·2026
Same journal

Coupling Single Molecules to DNA-Based Optical Antennas with Position and Orientation Control.

ACS photonics·2026
Same journal

Interface States in Space-Time Photonic Crystals: Topological Origin, Propagation, and Amplification.

ACS photonics·2026
Same journal

Mid-Infrared Sensing and Ultrafast Photoresponse in Silicon-Based Plasmonic Detectors.

ACS photonics·2026
Same journal

Light-Driven Topological Relaxation and Dynamic Scaling in Photoresponsive Polymer Films.

ACS photonics·2026
Same journal

Electro-optic Modulation in Polycrystalline Barium Titanate Metasurfaces Enhanced by Poling.

ACS photonics·2026
See all related articles

Related Experiment Video

Updated: May 2, 2026

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

12.3K

Exploring Rotational Diffusion with Plasmonic Coupling.

Nasrin Asgari1, Martin Dieter Baaske1,2, Jacco Ton1

  • 1Huygens-Kamerlingh Onnes Laboratory, Leiden University, Postbus 9504, 2300 RA Leiden, The Netherlands.

ACS Photonics
|February 26, 2024
PubMed
Summary
This summary is machine-generated.

This study demonstrates real-time measurement of nanoparticle orientation dynamics using optoplasmonic sensing. Plasmonic coupling enhances signal detection for smaller nanorods, improving angular sensitivity for diffusion studies.

More Related Videos

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

6.8K
Performing Spectroscopy on Plasmonic Nanoparticles with Transmission-Based Nomarski-Type Differential Interference Contrast Microscopy
08:54

Performing Spectroscopy on Plasmonic Nanoparticles with Transmission-Based Nomarski-Type Differential Interference Contrast Microscopy

Published on: June 5, 2019

7.6K

Related Experiment Videos

Last Updated: May 2, 2026

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation
09:29

Utilization of Plasmonic and Photonic Crystal Nanostructures for Enhanced Micro- and Nanoparticle Manipulation

Published on: September 27, 2011

12.3K
Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons
07:39

Determination of the Excitation and Coupling Rates Between Light Emitters and Surface Plasmon Polaritons

Published on: July 21, 2018

6.8K
Performing Spectroscopy on Plasmonic Nanoparticles with Transmission-Based Nomarski-Type Differential Interference Contrast Microscopy
08:54

Performing Spectroscopy on Plasmonic Nanoparticles with Transmission-Based Nomarski-Type Differential Interference Contrast Microscopy

Published on: June 5, 2019

7.6K

Area of Science:

  • Nanoscience
  • Biochemistry
  • Optical Methods
  • Plasmonics

Background:

  • Optical methods for real-time orientation dynamics of nanoparticles and nonfluorescent molecules are challenging.
  • Optoplasmonic sensing offers a potential solution for these measurement difficulties.

Purpose of the Study:

  • To examine optoplasmonic sensing for measuring nanoparticle orientation dynamics.
  • To use rotational diffusion of plasmonic nanorods as an experimental model.
  • To achieve real-time observation of single nanorod rotational motion.

Main Methods:

  • Monitoring dark-field scattering of a large gold nanorod (GNR) sensor.
  • Observing smaller plasmonic nanorods diffusing in the GNR's near field.
  • Utilizing a time resolution of approximately 50 ns for motion tracking.

Main Results:

  • Plasmonic coupling significantly enhances the scattering signal of small diffusing gold nanorods.
  • Improved angular sensitivity was observed with plasmonic coupling compared to free diffusion.
  • Simultaneous translational and rotational diffusion reduced angle sensitivity compared to simulations.

Conclusions:

  • Optoplasmonic sensing with plasmonic coupling is effective for studying nanoparticle rotational dynamics.
  • Achieving full angular sensitivity requires a plasmonic assembly with nearly fixed positions and orientations.
  • This technique advances the capability to measure orientation dynamics in nanoscience and biochemistry.