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3-Pack F.F. Droplet (large)
€355.00

Availability: In stock

Pack of 3 focused flow droplet generator chips. Suitable for generating droplets of more then 100 µm diameters
€355.00

Pack of 3 focused flow droplet generator chips, for generating higly reproducible microsized droplets. Microfluidic droplet generators are excellent tools for generating highly reproducible microsized droplets with much higher precision and repeatability compared to conventional methods. By tuning the relative viscosities, surface tension, and velocities between the dispersed and the continuous phase droplets of almost any size can be created. Oil-in-water (O/W) droplets can be generated directly using the glass chips. Water-in-oil droplets (W/O) are best formed in hydrophobic channels (coated glass). This to prevent droplets from sticking to the channel walls. Suitable for generating droplets of more then 100 µm diameters.

Product CodeFF_DROP_L
Product reference for order

Please use the following product references for an order:
- Uncoated (hydrophilic) chips: FC_FFDG.2.50_PACK
- Coated (hydrophobic) chips: FC_FFDG.C.2.50_PACK

Number of chips per pack3
Distance between channel and top surface1100 µm
Distance between channel and bottom surface600 µm
Channel locationbottom
Total chip thickness1800 µm
Chip size45 mm x 15 mm
Channel width500 µm
Channel height100 µm
Internal Volume4.5 µl
Nozzle height50 µm
Number of Inlets2
Number of outlets1
Inlet/outlet hole sizes on top of the chip1.70 mm
Inlet/outlet holes size at channel0.60 mm
Optical propertiesOptical clear view from all sides
CoatingDepend on selection
Supplied in Fluidic slide?Yes
Material chipBorosilicate
Material black cartridgePolypropylene

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Quality

How do I clean my coated chips?

Chips that have Micronit’s standard hydrophobic coating can be cleaned with most organic solvents. IPA, acetone, ethanol and water should all be safe to use without damaging the coating. Do not clean the chips with any very acidic or alkaline chemical. Also, flush the chip with your cleaning material but don’t store the chip for many days with an organic solvent inside. Coated chips can be stored filled with water or air. 

I need a pumping system for my setup. Which one do you recommend?

We recommend using a high precision pumping system, regular syringe pumps often don't work very well for droplet generators. There are several high precision pumping systems on the market that work with different pumping principles. Micronit can offer serveral different pumping systems. A droplet platform including pumping system can be found here. You can also send us an email to find out which pump would work for you. 

What flowrates should I use?

This depends on many things, for example, which fluids you use. Check our flowrate instructions to find out how to start.

I only see streaks of fluids but no droplets, how do I get the droplets?

Decrease your flowrate. Check our flowrate instructions for a more acurate explanation.

Which surfactants should I use?

Have a look at our surfactant guide.

My chips are clogged, how do I prevent this?

Have a look at our clogging prevention guide

There's no flow in my setup. How do I fix this?

Is your setup clogged with dirt or fully blocked?
Chips can get clogged, for example when they’ve been used before and have not been cleaned the right way. If your chip is clogged with dirt, check our document on the prevention of clogging and/or read the answer to question number one on this page (regarding the cleaning of chips). Clogged chips often do let some flow through the chip, which makes it easier to identify the issue as clogging. If there is no flow at all it’s more likely that the flow path is not connected correctly.

Pinpoint the issue
We recommend walking through the full track of the fluid flows: check if your syringe or pump is not blocked, if your tubing is actually hollow and if your filters let fluids pass through. Then check if your chip has inlet and outlet holes and if these are positioned so that the fluids can go through the chip. The easiest way to do this is to disassemble the setup and check if fluids come out of the pump, then connect the tubing and check if fluids can come through. Keep on adding parts and checking if the fluids go through. This way you can pinpoint the problem.

If the problem remains
If the problem cannot be solved after following the above-mentioned steps, then take some pictures or make a short movie of your setup and send this, together with the description or name of your chip, to Micronit. We will gladly assist you in identifying the issue.

Should I use coated or uncoated droplet generators?

Have a look at our document about surface wetting properties.

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