How thick are the channels and walls of FluidFM micropipettes?

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Dear FluidFM support team,

I have a couple of questions regarding the dimensions of your micropipettes that I'm hoping you can help me with.

What is the depth of the hole at the end of your micropipettes as indicated below?

Also, on your website it lists that the height of the probe as 1-1.5μm. Is this the tolerance or can you provide a more specific height for the micropipette?

Thank you,
Justin Brooks,
University of Nebraska-Lincoln

1 Answer

Best Answer

The geometrical tolerance of our micropipette thickness is less than 100 nm, however the wall thickness and channel height highly influence the probe stiffness, which is why both parameters vary with the nominal stiffness as follows:

Probe type	Wall thickness	Microchannel height	Total probe height
Micropipette 0.3 N/m	300 nm	500 nm	1100 nm
Micropipette 2 N/m	600 nm	1000 nm	2200 nm
Micropipette 4 N/m	600 nm	1500 nm	2700 nm

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How thick are the channels and walls of FluidFM micropipettes?

We have joined forces with Harvard's Wyss Institute.

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