Microfluidic control system

Microfluidic flow control system

MFCS (Micro Flow Control System) is a good choice for liquid control at the nanoliter or microliter level. This system eliminates the hysteresis, long balance time of standard syringe and peristaltic pumps in a small volume range. The problem of pulse modulation. There are currently three systems to choose from and can be customized and easily upgraded based on customer experimentation. The following article covers the available options for fluid systems.

MFCS can be applied in the following areas:

Liquid chromatography studies, chip labs, μTAS systems, drug transport, life sciences, quality testing and rheological studies.

Create your own MFCS:

1. The first step: determine the pressure range required for the experiment.

2. Step 2: Determine the number of channels required. The pressure range and number of channels will determine which custom platform (low pressure, high pressure or negative pressure) is required.

Note: After determining the number of channels and the pressure of each channel, the system can be upgraded at any time to add new channels or pressure ranges.

3. Step 3: Select a fluid connection device. There are three accessories to choose from: FLFLOWELL, FL-FLUIWELL and FL-ELECTROWELL.

Three customizable platforms

● Low pressure type - FL-MFCS-FLEX

â—‹ Four channel pressures: 0-25 mbar, 0-69 mbar, 0-345 mbar or 0-1000 mbar.

â—‹ The number of channels is 1-8, and different channels (channels with different pressure ranges) can be mixed and configured.

â—‹ With the highest accuracy and stability

● High pressure type-FL-MFCS-100

â—‹ Channel pressure range: 0-7bar (0-100 PSI)

â—‹ Number of channels: 1-4

â—‹ Has the highest dynamic pressure range and considerable accuracy and stability.

● Negative pressure (vacuum) type - FL-MFCS-VAC

â—‹ Vacuum microfluidic pressure pump for extracting fluid

â—‹ There are three vacuum channel pressures: 0-25 mbar, 0-69 mbar, or 0-345 mbar.

â—‹ Number of channels: 1-8

â—‹ Mixable configuration (channels with different pressure ranges)

â—‹ With the highest accuracy and stability

Fluid connection device

Once you have selected your system configuration, you can choose one of the fluid connections listed below.

● FL-FLOWELL – The Flowell system consists of three flow meters, four reservoirs that can be pressurized and connected to a computer. The Flowell system has three flow meters with pressure capability to monitor the flow of liquid in the channel. An accurate sensor with amplification capability is coupled to the analog to digital converter and the signal processor on the CMOS chip. The reservoir can be connected directly to the chip or externally. Using a modified pneumatic device, the Wheatstone bridge can establish a pressure double gauge to control the pressure. By optimizing the system, you can accurately measure liquid flow or control fast-changing flows.

○ Simultaneous pressure control and real-time flow monitoring: 0-7 μL/mn, 0-50 μL/mn or 1 mL/mn.

â—‹ Calibration and temperature compensation of aqueous solution

â—‹ High precision: ~ 0.1%

â—‹ Instantaneous response time: < 200 ms

â—‹ Can monitor injection or withdrawal of liquid

â—‹ Unique flow adjustment device to choose from

● FL-FLUIWELL

â—‹ Easy flow connection for up to four different fluid connections

â—‹ Large flow bottles can be used for longer duration tests

â—‹ Easy pretreatment (pressure cooker, etc.) before liquid transfer

â—‹ Disposable flow vials to avoid cross-contamination

â—‹ Can provide 1-4 small rooms

● FL-ELECTROWELL

â—‹ Simultaneous electrical and pressure control

â—‹ Up to 6000V voltage difference

â—‹ Four independent channels

â—‹ Convenient microfluidic connection

â—‹ Compatible with platinum electrode, also compatible with Cu, Ag, etc.

System model introduction

Typical microfluidic system models such as FL-MF2C-25.

● FL-MF – Microfluidic Control System

● Number of 2C-series channels. Here is 2 channels

● 25- System pressure range. This model is 0-25mbar

● V- If the model end is V (eg FL-MF2C-25V), it is a vacuum (vacuum) system.

● H- If the model ends with H (eg FL-MF2C-7H), it is a high voltage system. This example is 0–7 bar.