Friday 9 December 2011

Extraction process

A laser is accompanying into a microscope and focuses assimilate the tissue on the slide. By movement of the laser by eyes or the date the focus follows a aisle which is predefined by the user. This trajectory, a so alleged Element, is again cut out and afar from the adjoining tissue. After the acid process, an abstraction action has to chase if an abstraction action is desired. More contempo technologies advance non-contact microdissection.

Theoretically, there are several means to abstract tissue from a microscope accelerate with a histopathology sample on it:

Press a adhesive apparent assimilate the sample and breach out. This will abstract the adapted region, but additionally bears the adventitious to backpack particles or exceptionable tissue on the surface, because an allround adhesive apparent is not selective.

Melt a artificial film assimilate the sample and breach out. The calefaction is alien by an, e.g., red or IR laser assimilate a film decrepit with an arresting dye. As this adheres the adapted sample assimilate the membrane, as with any film that is put abutting to the histopathology sample surface, there ability be some bits extracted. Another crisis is the alien heat: Some molecules like DNA, RNA, or protein don't acquiesce to be acrimonious too abundant or at all for the ambition of actuality abandoned as absolutely as possible.

Carriage after contact. There are three altered approaches:

Carriage artlessly by force application an cocked microscope or

Reliable and absolute carriage by Laser Pressure Catapult

The best contempo bearing utilizes a technology based on Laser Induced Forward Transfer (LIFT)

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