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Ruwin Pandithage, Dr.


Ruwin Pandithage was born in Sri Lanka and grew up in Germany where he completed his MSc in molecular biology at the RWTH-Aachen. He graduated in the department of biochemistry at the University Hospital Aachen.

During his scientific education he obtained experiences in Life Science Microscopy.

In 2007 he moved to Vienna and started as a sales representative in the Life Science Research Division of Leica where he gained sales know-how and experience in marketing.

Since 2010 he is  Product Manager at Leica Microsystems Nanotechnologies, Vienna, Austria.

  • Brief Introduction to Contrasting for EM Sample Preparation

    Since the contrast in the electron microscope depends primarily on the differences in the electron density of the organic molecules in the cell, the efficiency of a stain is determined by the atomic weight of the stain attached to the biological structures. Consequently, the most widely used stains in electron microscopy are the heavy metals uranium and lead.
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  • Brief Introduction to Glass Knifemaking for Electron and Light Microscope Applications

    Glass knives are used in an ultramicrotome to cut ultrathin slices of samples for electron and light microscope applications. For resin and for cryo sections (Tokuyasu samples) the knife edge must be extremely sharp, strong and stable. An important requirement for breaking glass knives of superior quality is the quality of the glass strips. Glass strips are produced from specially selected glass, the thickness and quality of which is precisely controlled. Only strict tolerances ensured by careful quality control allow breaking of two high quality knives from one square.
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  • Brief Introduction to Critical Point Drying

    One of the uses of the Scanning Electron Microscope (SEM) is in the study of surface morphology in biological applications which requires the preservation of the surface details of a specimen. Samples for Electron Microscopy (EM) imaging need to be dried in order to be compatible with the vacuum in the microscope. The presence of water molecules will disturb the vacuum and with it the imaging.
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  • Webinar: State of the Art Critical Point Drying

    Specimens which can be damaged due to surface tension when changing from the liquid to gaseous state need special treatment during sample preparation. Critical point drying is an efficient method for drying such delicate samples for SEM applications because it preserves the surface structure ...
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