The latest version V4 of the open source platform "OpenDrop" for digital microfluidics has been released

■ This is an article posted on June 2020, 7, so the content of the information may be out of date.

A device for controlling small droplets using electrowetting technology developed by Gaudi Labs, Switzerland.opendropThe latest version of OpenDrop V4 has been released.

Image using OpenDrop:

Digital Microfluidics – Dilution Series – on OpenDrop DIY Electrowetting Platform

 

OpenDrop V4 adopts a new modular format, and a circuit board cartridge equipped with a 14 x 8 electrode array and four CT type reservoirs is mounted on the main body (driver board + main board) for use. Please see the video by the manufacturer below.)

Liquid Cartridge for Digital Microfludics Platform from OpenDrop Version 4

 

There is a 5.5mm high space between the cartridge and the driver board, where application-specific components such as Peltier elements for heating and cooling, electromagnets for magnetic beads and optical sensors for reaction measurement are arranged and used. can.

Features

– Modular Cartridge System
– Connector to connect electrode board with up to 128 channels
– Gold coated 14 × 8 electrodes array, 2.75 mm x 2.75 mm in size, 4mil gaps
– Reservoirs? The new electrode array features 4 CT-type reservoirs
– AC and DC voltage generated on the device form USB power. True AC voltage driving capability (up to 300VAC).
– 32bit AVR SAMD21G18 microprocessor with plenty of memory and power
– Electronic settings for voltage level, frequency and AC / DC selection
– Electronic reading of actual voltage level
– One connector for communication and powering (USB-C)
– Optical isolation of the high-voltage electronics trough opto-couplers and PhotoMOS
– New polyphonic audio amplifier and speaker (it's a synth!)
– Cartridge presence detection
– Feedback amplifier
– Super flat OLED Display
– Nice joystick and 2 buttons, 3 LEDs
– Reset button
– All files open source, designed on KiCAD

OpenDrop was developed with the goal of making personal laboratory automation accessible to many researchers.Since the first version of OpenDrop V1 was released in 2015, it has been steadily evolving with the release of new versions. I will.

Unipos has a large track record of handling OprnDrop. Please feel free to contact us if you are considering purchasing.