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Cooling Stage

Linkam Scientific Instruments Ltd.Request Info
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TADWORTH, England, Dec. 23, 2012 — Linkam Scientific Instruments has developed a stage for cryo-correlative light electron microscopy (cryo-CLEM) used in imaging of cells at cryo temperatures. It was designed in collaboration with Leiden University Medical Centre.

Cryo-CLEM is the correlation of images captured with a cryo stage on a fluorescent light microscope and images of the same sample observed with transmission electron microscopy (TEM).

The correlative stage is being used as part of a work flow that starts with cells expressing cancer-related genes and ends with imaging in synchrotrons located in Oxford, Berlin and Barcelona, Spain. Within the synchrotrons, the scientists can image the cells using soft x-ray tomography.

The correlative stage can hold samples at a stable −196 °C, enabling scientists to study TEM grid samples at 100× magnification, identifying areas of further interest and facilitating the movement of the analyzed grids to the TEM. With automated liquid nitrogen control, heated optics and a digital display, the unit is a compact and efficient system.

It is used to study cells that are undergoing autophagy, a process involving degradation and recycling of unnecessary or dysfunctional cell components. It also is being used in a process for imaging fluorescent proteins in cells as close to their living state as possible, considering that they must be placed in a vacuum to take high-magnification images. The cells are grown on thin carbon films attached to a 3-mm-diameter gold grid and frozen in liquid ethane at −174 °C. The correlative stage is used to image the fluorescence in the cells while they are still frozen. The frozen grids are then shipped to the synchrotron, where they are put into the soft x-ray microscope so the structure of the entire cell can be imaged in 3-D.
Dec 2012

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autophagyBarcelonaBerlinBiophotonicsBreakthroughProductscancercell imagingcryo-CLEMcryo-correlative cooling stageEnglandEuropefluorescent light microscopeGermanyimagingLeiden University Medical Centrelight electron microscopyLinkam ScientificMicroscopyopticsOxfordProduct PreviewProductssoft x-ray tomographySpainsynchrotronstransmission electron microscopy

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