Seeking Metal 3D design and prototyping Resource(s)

[MadScientist]

Greetings!

I am new to this forum, with no 3D printing exposure or experience.

For one of my biology garage projects, I need help with figuring out who can rapid prototype a miniature metal iris diaphragm with razor edges for cutting soft biological material.

The requirement specifications I've come up with are:

Max radius of iris diaphragm =~ 0 mm

Max radius of iris diaphragm = 2 mm

Sharpness for cutting neatly through soft, pliant biological material

Resistant to corrosion from aqueous environment

Resistant to frequent blade dullingWithstand repeated usage (at least ~10K, preferably 1MM cycles)

Easily scalable to fabricate more numbers

After prototype validation, design should be compatible with multiplexing, i.e. a grid of such devices with common control(s)

Easy-to-use controls to set max radius

Simple manual mechanism to effect the cutting action

If this is the wrong forum or page within the forum, could you please guide me in the right direction? Thank you!