| In lifeScan, the tip is used to create the profile of the molecule differently than in other atomic force microscope methods. |
lifeScan ONE-TOUCH MODE
steps to contact per pixel are held constant
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Result
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Practical Effect
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Low contact force
Digital servo is high speed and stable
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Resolution improves
Resolution improves
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CONTACT MODE
deflection of the cantilever is held constant
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Result
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Practical Effect
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Constant deflection increases lateral force
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Individual molecules are swept away
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TAPPING MODE
oscillation amplitude of the cantilever is held constant
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Result
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Practical Effect
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High impact at the tap
Many taps per pixel
Z servo is slow
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Resolution decreases
Resolution decreases
Resolution decreases
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