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

Nuclear Magnetic Resonance (NMR): Overview01:07

Nuclear Magnetic Resonance (NMR): Overview

Nuclear magnetic resonance (NMR) is a phenomenon exhibited by certain nuclei that can absorb characteristic radio frequency radiation under certain conditions. NMR has been extensively applied in molecular spectroscopy and medical diagnostic imaging. In both these applications, the molecule or subject under study is placed in a magnetic field and irradiated with radio frequency energy.
NMR spectroscopy generates a spectrum where the characteristic absorption frequencies of the sample are...
Atomic Nuclei: Magnetic Resonance01:05

Atomic Nuclei: Magnetic Resonance

The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
IR Frequency Region: Fingerprint Region01:03

IR Frequency Region: Fingerprint Region

IR spectra are divided into two main regions: the diagnostic region and the fingerprint region. The diagnostic region of the spectrum lies above 1500 cm−1. The absorptions resulting from single-bond vibrations of the N–H, C–H, and O–H stretch at higher wavenumbers and appear on the left side of the spectrum. The stretching absorptions of the C≡C and C≡N occur between 2100–2300 cm−1. In contrast, those arising from stretching absorptions of the C=O, C=N, and C=C occur between 1600–1850 cm−1.
The...
Applications Of NMR In Biology01:25

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics  for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
The...
Magnetic Resonance Imaging01:24

Magnetic Resonance Imaging

Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

Surfaced-based detection of focal cortical dysplasia using magnetic resonance fingerprinting and machine learning.

Epilepsia·2025
Same author

Comments on "Preventive Effect of Helicobacter pylori Treatment on Gastric Cancer Incidence and Mortality: A Korean Population Study".

Gastroenterology·2025
Same author

TPF regimen improves conversion surgery and short-term survival in patients with locally unresectable advanced gastric cancer.

American journal of translational research·2025
Same author

Effect of the Microstructure of Carbon Supports on the Oxygen Reduction Properties of the Loaded Non-Noble Metal Catalysts.

Nanomaterials (Basel, Switzerland)·2025
Same author

TEA domain transcription factor 3 suppresses aortic and left ventricular remodeling via transcriptional activation of PDZ domain containing 1.

Biochemical pharmacology·2025
Same author

Prospects and challenges of salivary gland tissue engineering in Sjögren's syndrome.

Expert reviews in molecular medicine·2025

Video Experimental Relacionado

Updated: May 12, 2026

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning
07:33

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning

Published on: April 15, 2010

La toma de huellas digitales por resonancia magnética.

Dan Ma1, Vikas Gulani, Nicole Seiberlich

  • 1Department of Biomedical Engineering, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, Ohio 44106, USA.

Nature
|March 15, 2013
PubMed
Resumen

La huella digital por resonancia magnética (MRF) permite la cuantificación simultánea y no invasiva de múltiples propiedades de materiales o tejidos. Esta técnica avanzada mejora la precisión y ofrece un nuevo potencial de diagnóstico para detectar enfermedades y alteraciones físicas.

Más Videos Relacionados

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
07:01

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Videos de Experimentos Relacionados

Last Updated: May 12, 2026

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning
07:33

Magnetic Resonance Spectroscopy of live Drosophila melanogaster using Magic Angle Spinning

Published on: April 15, 2010

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples
07:01

Frequency Mixing Magnetic Detection Scanner for Imaging Magnetic Particles in Planar Samples

Published on: June 9, 2016

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains
07:42

Optimizing Magnetic Force Microscopy Resolution and Sensitivity to Visualize Nanoscale Magnetic Domains

Published on: July 20, 2022

Área de la Ciencia:

  • Imágenes médicas de imágenes médicas.
  • La biofísica es la biofísica.
  • Ciencia de los materiales Ciencia de los materiales.

Sus antecedentes:

  • La resonancia magnética (RM) es una técnica poderosa, pero los experimentos son en gran medida cualitativos.
  • Los métodos actuales de resonancia magnética exploran solo un conjunto limitado de propiedades del material / tejido.
  • Las técnicas existentes se enfrentan a limitaciones en el análisis cuantitativo y la supresión de errores.

Objetivo del estudio:

  • Introducir la huella digital por resonancia magnética (MRF, por sus siglas en inglés) para la cuantificación simultánea y no invasiva.
  • Permitir el análisis cuantitativo de cambios complejos en materiales y tejidos.
  • Mejorar la sensibilidad, especificidad y velocidad de los estudios de RM para el diagnóstico.

Principales métodos:

  • Desarrolló un nuevo enfoque para la adquisición de datos de RM, el post-procesamiento y la visualización.
  • Implementado MR fingerprinting (MRF) para la cuantificación simultánea de las propiedades.
  • Utilizó algoritmos de reconocimiento de patrones para mejorar la precisión de la medición.

Principales resultados:

  • El MRF permite la cuantificación no invasiva de múltiples propiedades de materiales o tejidos simultáneamente.
  • La técnica proporciona un método cuantitativo para analizar alteraciones físicas o indicadores de enfermedad temprana.
  • El MRF mejora la sensibilidad y la especificidad en la identificación de materiales o tejidos objetivo.

Conclusiones:

  • MRF ofrece una alternativa a la MR tradicional, permitiendo el análisis cuantitativo de cambios complejos.
  • Este método puede conducir a nuevas metodologías de pruebas de diagnóstico con una mayor precisión.
  • MRF inherentemente suprime los errores de medición, mejorando la fiabilidad general del estudio de MR.