Jove
Visualize
Contáctanos
JoVE
x logofacebook logolinkedin logoyoutube logo
ACERCA DE JoVE
Visión GeneralLiderazgoBlogCentro de Ayuda JoVE
AUTORES
Proceso de PublicaciónConsejo EditorialAlcance y PolíticasRevisión por ParesPreguntas FrecuentesEnviar
BIBLIOTECARIOS
TestimoniosSuscripcionesAccesoRecursosConsejo Asesor de BibliotecasPreguntas Frecuentes
INVESTIGACIÓN
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchivo
EDUCACIÓN
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualCentro de Recursos para ProfesoresSitio de Profesores
Términos y Condiciones de Uso
Política de Privacidad
Políticas

Videos de Conceptos Relacionados

UV–Vis Spectroscopy of Conjugated Systems01:32

UV–Vis Spectroscopy of Conjugated Systems

5.9K
Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is...
5.9K
Molecular Spectroscopy: Absorption and Emission01:14

Molecular Spectroscopy: Absorption and Emission

4.1K
Molecules possess discrete energy levels called quantum states. Unlike atoms, which have simpler energy levels, molecules possess additional rotational and vibrational energy levels. Each energy level is separated by an energy gap, with the gaps between adjacent electronic, vibrational, and rotational levels varying significantly. The three types of energy levels in a diatomic molecule are shown in Figure 1.
4.1K
UV–Vis Spectroscopy: Molecular Electronic Transitions01:16

UV–Vis Spectroscopy: Molecular Electronic Transitions

3.0K
In Ultraviolet–Visible (UV–Vis) spectroscopy, the absorption of electromagnetic radiation is used to probe the electronic structure of molecules. This technique provides insights into molecular electronic transitions, particularly the movement of electrons between different molecular orbitals. Radiation is absorbed if the energy of the electromagnetic radiation passing through the molecule is precisely equal to the energy difference between the excited and ground states. During this...
3.0K
Atomic Spectroscopy: Absorption, Emission, and Fluorescence01:23

Atomic Spectroscopy: Absorption, Emission, and Fluorescence

3.1K
Atomic spectroscopy is a vital tool in elemental analysis, both qualitatively and quantitatively. It can be broadly divided into optical spectroscopy, mass spectroscopy, and X-ray spectroscopy methods. The optical spectroscopic methods are atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), and atomic fluorescence spectroscopy (AFS). The first step in all three methods is atomization, where the solid, liquid, or solution-phase samples are converted into gas-phase atoms and...
3.1K
Atomic Fluorescence Spectroscopy01:29

Atomic Fluorescence Spectroscopy

1.1K
Atomic fluorescence spectroscopy (AFS) is an analytical technique that involves the electronic transitions of atoms in a flame, furnace, or plasma being excited by electromagnetic (EM) radiation. When these atoms absorb energy, they become excited and subsequently release energy as they return to their original state. This emitted light, or "fluorescence," is observed at a right angle to the incident beam. Both absorption and emission processes transpire at distinct wavelengths, which...
1.1K

También podría leer

Artículos Relacionados

Artículos vinculados a este trabajo por autores compartidos, revista y gráfico de citas.

Ordenar por
Same author

Hardware-Attentive Programmable Fourier Ptychography Enables Task-Adaptive Label-Free Virtual Staining.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026
Same author

Correction to "Thiolate DNAzymes on Gold Nanoparticles for Isothermal Amplification and Detection of Mesothelioma-derived Exosomal PD-L1 mRNA".

Analytical chemistry·2026
Same author

Binocular vision fusion enhanced 3D NIR-II <i>in vivo</i> imaging of bone and vessel networks.

Fundamental research·2026
Same author

Beads-on-a-Tip testing for ultrasensitive antigen detection across a large dynamic range.

Smart molecules : open access·2026
Same author

Lattice and ligand engineering for hierarchical heterogeneous nanocrystals.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

White matter microstructure and cognitive decline in subacute ischemic stroke: Insights from free water imaging and glymphatic dysfunction.

Brain research bulletin·2026

Video Experimental Relacionado

Updated: May 3, 2026

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue
10:17

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue

Published on: June 18, 2014

14.1K

Espectroscopia de una sola partícula para nanomateriales funcionales

Jiajia Zhou1, Alexey I Chizhik2, Steven Chu3,4

  • 1Institute for Biomedical Materials and Devices (IBMD), Faculty of Science, University of Technology Sydney, Sydney, New South Wales, Australia. jiajia.zhou@uts.edu.au.

Nature
|March 6, 2020
PubMed
Resumen
Este resumen es generado por máquina.

La espectroscopia de partícula única es crucial para comprender los nanomateriales luminiscentes, guiando su desarrollo para aplicaciones avanzadas de imágenes y fotónicas al revelar propiedades ópticas únicas.

Más Videos Relacionados

UV-Vis Spectroscopic Characterization of Nanomaterials in Aqueous Media
05:16

UV-Vis Spectroscopic Characterization of Nanomaterials in Aqueous Media

Published on: October 25, 2021

10.7K
Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

3.3K

Videos de Experimentos Relacionados

Last Updated: May 3, 2026

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue
10:17

Laser-induced Breakdown Spectroscopy: A New Approach for Nanoparticle's Mapping and Quantification in Organ Tissue

Published on: June 18, 2014

14.1K
UV-Vis Spectroscopic Characterization of Nanomaterials in Aqueous Media
05:16

UV-Vis Spectroscopic Characterization of Nanomaterials in Aqueous Media

Published on: October 25, 2021

10.7K
Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy
10:59

Author Spotlight: Tracking Electrochemistry on Single Nanoparticles with Surface-Enhanced Raman Scattering Spectroscopy and Microscopy

Published on: May 12, 2023

3.3K

Área de la Ciencia:

  • Nanotecnología
  • Ciencias de los materiales
  • Física óptica

Sus antecedentes:

  • Los avances en nanotecnología han permitido los nanomateriales luminiscentes para dispositivos de imágenes, sensores y fotónicos.
  • El control de las propiedades fotofísicas de las nanopartículas luminiscentes individuales es clave para las aplicaciones traslacionales.

Objetivo del estudio:

  • Resaltar la importancia de la espectroscopia de una sola partícula para los nanomateriales.
  • Comparar la espectroscopia de una sola partícula con la espectroscopia de fluorescencia de conjunto.
  • Guía de la ciencia de los materiales en la adaptación de la síntesis y las aplicaciones de nanomateriales.

Principales métodos:

  • Espectroscopia de una sola partícula
  • Espectroscopia de fluorescencia en conjunto

Principales resultados:

  • La espectroscopia de una sola partícula revela diversas propiedades ópticas y funcionalidades de los nanomateriales.
  • Esta técnica guía la síntesis de nanomateriales ópticamente uniformes.
  • Permite el desarrollo de nuevas aplicaciones para los nanomateriales.

Conclusiones:

  • La espectroscopia de una sola partícula es esencial para comprender y desarrollar nanomateriales luminiscentes.
  • La investigación futura debe centrarse en ampliar los límites de resolución e integrar las modalidades de medición.
  • El establecimiento de relaciones estructura-función en nanopartículas individuales es crítico para el avance de la nanotecnología.