CENTRO DE BIOLOGÍA MOLECULAR SEVERO OCHOACaptura de pantalla 2022 09 14 a las 10.27.10    

Electron microscopy

Scientific supervisor: Germán Andrés Hernández
Technical director: María Teresa Rejas Marco

  sme (at) cbm.csic.es
  First floor - 113

El Servicio de Microscopía Electrónica (SME) proporciona apoyo científico-técnico a los grupos de investigación interesados en emplear la microscopía electrónica para el análisis ultraestructural e inmunocitoquímico de complejos macromoleculares, virus, bacterias, células eucariotas y tejidos. Los métodos disponibles incluyen técnicas convencionales de procesamiento de muestras y criotécnicas como la criosustitución, la crioultramicrotomia y la criofractura.

Además el SME ofrece diferentes métodos de localización in situ de ácidos nucleicos y proteínas, incluyendo técnicas de microscopía correlativa óptica-electrónica (CLEM) para la observación in vivo de moléculas de interés y su posterior localización ultraestructural.

El SME dispone de dos microscopios electrónicos de transmisión, de 100 kV y 120kV, ambos equipados con cámaras fotográficas digitales (4K x 4K) de última generación y de un microscopio invertido de fluorescencia dedicado a técnicas CLEM. Además dispone del siguiente equipamiento para el procesamiento de muestras: equipo de criofijación por inmersión, equipo de criosustitución automática, ultramicrotomo convencional, crioultramicrotomo y unidad de criofractura.

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* For external calls please dial 34 91196 followed by the extension number
Last nameNameLaboratoryExt.*e-mail
Guerra RodríguezMilagros1134532mguerra(at)cbm.csic.es
Matamoros GrandeTania1064534tmatamoros(at)cbm.csic.es
Rejas MarcoMª Teresa1134538/4532mtrejas(at)cbm.csic.es
Rodríguez GómezMaría Josefa1134532mj.rodriguez(at)cbm.csic.es

Microscopios electrónicos
2018 11 02MicroscopioVeterano08 1500px
Microscopio Electrónico de Transmisión JEM1010 (Jeol)

Características técnicas:

  • Cañón de emisión termoiónica: filamento de tungsteno
  • Voltaje de aceleración: hasta 100 KeV
  • Lente objetivo: alto contraste (pieza polar SAP-10B)
  • Resolución entre líneas: 0,2 nm

...
Cámara CMOS TemCam F416 (TVIPS)

Características técnicas:

  • Sensor CMOS 4Kx4K (tamaño pixel 15,6 um2)
  • Acoplamiento del centelleador al CMOS por fibra óptica 1:1
  • Velocidad de captura: 1.0 fps a máxima resolución
  • Resolución entre líneas: 0,2 nm
...
Microscopio Electrónico de Transmisión JEM1400 Flash (Jeol)

Características técnicas:

  • Cañón de emisión termoiónica: admite filamento de tungsteno y de LaB6
  • Voltaje de aceleración: hasta 120 keV
  • Lente objetivo: pieza polar tipo STEM (EM-10151ST12)
  • Resolución entre líneas: 0,2 nm
  • Goniómetro motorizado en 5 ejes
  • Portamuestras de alto ángulo de inclinación para uso en tomografía

...
Cámara CMOS Oneview (Gatan)

Características técnicas:

  • Sensor CMOS 4K x 4K (tamaño pixel 15 um2)
  • Acoplamiento del centelleador al CMOS por fibra óptica 1:1
  • Velocidad de captura: 25 fps a máxima resolución
  • Rango dinámico: 16Bit
 

Prestaciones del servicio:

  1. Supervisión científico-técnica en el diseño experimental, análisis e interpretación de datos
  2. Formación y supervisión de los usuarios en el manejo del microscopio electrónico
  3. Mantenimiento, ajuste y manejo de los equipos
  4. Tinción negativa de complejos macromoleculares
  5. Inclusión convencional de muestras biológicas en resinas y ultramicrotomía
  6. Criosustitución e inclusión a baja temperatura
  7. Crioultramicrotomía (técnica de Tokuyasu)
  8. Inmunomicroscopía electrónica con conjugados a oro coloidal
  9. Criofractura, criosecado y obtención de replicas de Pt-C
  10. Microscopía electrónica de ácidos nucléicos
  11. Microscopía correlativa óptica-electrónica

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