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

Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

18.9K
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
18.9K
BJT Amplifiers01:14

BJT Amplifiers

975
Bipolar Junction Transistors (BJTs) are pivotal components in amplifier circuits, functioning as voltage-controlled current sources in their active region. This characteristic allows them to efficiently control the collector current through variations in the base-emitter voltage. Essentially, BJTs amplify power due to their ability to take a weak input signal and output a much stronger signal.
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...
975
Operational Amplifiers01:17

Operational Amplifiers

1.9K
The operational amplifier, often referred to as an op-amp, is a multifaceted building block of a circuit. This electronic component functions like a voltage-controlled voltage source and can also be used to create a voltage- or current-controlled current source. The design of an operational amplifier enables it to execute mathematical operations when external components like resistors and capacitors are linked to its terminals. An op-amp has the capacity to sum signals, amplify a signal,...
1.9K
MOSFET Amplifiers01:17

MOSFET Amplifiers

510
The MOSFET, when operating in its active region, functions as a voltage-controlled current source. In this region, the gate-to-source voltage controls the drain current. This principle underlies the operation of the transconductance MOSFET amplifier. The output current is directed through a load resistor to convert this amplifier into a voltage amplifier. The output voltage is then obtained by subtracting the voltage drop across the load resistance from the supply voltage. This process results...
510
Instrumentation Amplifier01:25

Instrumentation Amplifier

1.1K
An electrocardiography (ECG) machine is an essential piece of medical equipment used to monitor the electrical activity of the heart. It operates by detecting small electrical changes on the skin that result from the depolarization of the heart muscle during each heartbeat. However, these signals are in the microvolt range and can be easily overwhelmed by noise or interference.
To overcome this challenge, an ECG machine utilizes an instrumentation amplifier. This specialized amplifier is...
1.1K
Electron Transport Chain: Complex III and IV01:43

Electron Transport Chain: Complex III and IV

9.2K
During the electron transport chain, electrons from NADH and FADH2 are first transferred to complexes I and II, respectively. These two complexes then transfer the electrons to ubiquinol, which carries them further to complex III. Complex III passes the electrons across the intermembrane space to Cyt c, which carries them further to complex IV. Complex IV donates electrons to oxygen and reduces it to water. As electrons pass through complexes I, III, and IV, the energy released aids the pumping...
9.2K

También podría leer

Artículos Relacionados

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

Ordenar por
Same author

EPR characterization of a metal-binding site in RquA.

Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry·2026
Same author

Ligand-to-metal charge transfer control of <sup>51</sup>V NMR thermal sensitivity.

Chemical communications (Cambridge, England)·2026
Same author

Structure, Stability, and Spin Resonance in Dicopper(II) Complexes.

Inorganic chemistry·2026
Same author

Effect of the counter anion to slow magnetic relaxation of hexacoordinate Co(II) complexes.

Dalton transactions (Cambridge, England : 2003)·2025
Same author

Further insights into controlling the anisotropy of pentacoordinate Co(II) field-supported single-molecule magnets.

Dalton transactions (Cambridge, England : 2003)·2025
Same author

Cooperative enhancement of redox catalysis in divanadium complexes binucleated by 1,8-naphthyridine-2,7-dicarboxylate.

Dalton transactions (Cambridge, England : 2003)·2025

Video Experimental Relacionado

Updated: Jan 28, 2026

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping
09:40

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping

Published on: August 26, 2010

22.7K

Sensibilidad térmica amplificada del espín electrónico en complejos de Mn(II)

Anthony J Campanella1, Amanda Gin1, Siyoung Sung1

  • 1Department of Chemistry, Colorado State University, Fort Collins, CO 80523, USA.

Dalton transactions (Cambridge, England : 2003)
|January 27, 2026
PubMed
Resumen

La elección del ligando controla la sensibilidad a la temperatura de las señales de resonancia paramagnética electrónica (RPE) en complejos de manganeso(II). Esta sintonización molecular ofrece un rendimiento mejorado para aplicaciones de espín como la detección cuántica.

Palabras clave:
química de espíndetección cuánticatermómetros molecularesespectroscopía EPRcomplejos de manganeso(II)sensibilidad a la temperaturaparámetro de división de campo cero

Más Videos Relacionados

Detection of Nitric Oxide and Superoxide Radical Anion by Electron Paramagnetic Resonance Spectroscopy from Cells using Spin Traps
13:21

Detection of Nitric Oxide and Superoxide Radical Anion by Electron Paramagnetic Resonance Spectroscopy from Cells using Spin Traps

Published on: August 18, 2012

19.5K
Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release
08:39

Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release

Published on: July 4, 2017

9.4K

Videos de Experimentos Relacionados

Last Updated: Jan 28, 2026

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping
09:40

Electron Spin Resonance Micro-imaging of Live Species for Oxygen Mapping

Published on: August 26, 2010

22.7K
Detection of Nitric Oxide and Superoxide Radical Anion by Electron Paramagnetic Resonance Spectroscopy from Cells using Spin Traps
13:21

Detection of Nitric Oxide and Superoxide Radical Anion by Electron Paramagnetic Resonance Spectroscopy from Cells using Spin Traps

Published on: August 18, 2012

19.5K
Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release
08:39

Magnetic and Thermal-sensitive PolyN-isopropylacrylamide-based Microgels for Magnetically Triggered Controlled Release

Published on: July 4, 2017

9.4K

Área de la Ciencia:

  • Química de espín
  • Detección cuántica
  • Ciencia de materiales

Sus antecedentes:

  • La sensibilidad a la temperatura de las propiedades de resonancia magnética es crucial para las aplicaciones de espín.
  • La sintonización molecular puede modificar la dependencia de la temperatura de los espectros de resonancia paramagnética electrónica (RPE).

Objetivo del estudio:

  • Demostrar que la elección del ligando puede controlar la dependencia de la temperatura de los espectros de RPE.
  • Investigar el efecto de la modificación del ligando en el parámetro de división de campo cero (D) en complejos de Mn(II).

Principales métodos:

  • Preparación y análisis de tres complejos diferentes de Mn(II) encapsulados.
  • Espectroscopía EPR de alta frecuencia y campo alto para estudiar las variaciones espectrales con la temperatura.

Principales resultados:

  • Los espectros de RPE de todos los complejos mostraron variaciones dependientes de la temperatura en el ancho.
  • La capa de ligando alteró significativamente las sensibilidades térmicas del parámetro de división de campo cero (D), que oscilaron entre 2,2 y 9,8 MHz K⁻¹.
  • Se logró una mejora significativa en comparación con el centro de vacante de nitrógeno en diamante (aproximadamente 74 kHz K⁻¹).

Conclusiones:

  • La selección del ligando es una estrategia eficaz para ajustar la dependencia de la temperatura del parámetro de división de campo cero (D) en complejos de Mn(II).
  • Esta capacidad de sintonización molecular muestra una gran promesa para el desarrollo de nuevos termómetros moleculares y plataformas de detección cuántica.