Crystallography: PROTEIN CRYSTAL HARVESTING    
 

PROTEIN CRYSTAL HARVESTING The following videos show examples of harvesting using our micro manipulator tools. Two models are available. One is automated on XY and Z axis. The other is automated in The Z axis with manual micro controls on the X and Y axes. Tools shown in the video are 75u harvesting tools by MiTeGen. The manipulators are controlled by a multi function / multi-axis controller.
A menu driven Macro script program lets you easily write sequences for the manipulators to perform. After harvesting another sequence will automatically dip crystal into cryo protectant.

 

    
 

Description: Crystal was located and tool aligned. Macro Harvest Sequence initiated. Crystal was harvested automatically.

 

Tool was brought down to lower preset. XY table moved so crystal was over tool. Macro Harvest Sequence initiated. Crystal was harvested semi-automatically.

 

Both tools were brought down to lower preset. XYZ micro-manipulator was used to push crystal into tool on Z micro-manipulator. Macro Harvest Sequence
initiated. Crystal was harvested semi-automatically.

  This is an example of several crystal fragments being accidentally harvested with the desired crystal. This sort of event probably occurs more frequently than realized with unassisted manual harvesting.