# Microfluidics

## Introduction

On systems with an u-Flux pressure box and auto fluidics, Bluelake allows users to control the pressure manually and
automatically, and to open and close the different microfluidic channels.

![](images/Section1.png)

## Pressure

The pressure can be adjusted in two ways:

- Manually, by pressing the **+** (plus) and **-** (minus) buttons
- Automatically, by enabling the **Auto-adjust** switch
    - This increases/decreases the pressure until it reaches the target set in the field to the right of the switch. The
      field below, "Deviation +/-", specifies the tolerance for reaching the target. For example, a target of 1.0 with
      deviation 0.05 will result in a pressure in the interval [0.95, 1.05].

Furthermore, the user can open the valves and release the pressure in two ways:

- Pressing *Vent* opens the valves until the pressure reaches zero, at which point they are closed again
- Pressing *Vacuum* opens the valves indefinitely, until the user presses the button again

## Channels

### Open/Close

The channels can be opened/closed in three ways:

- One by one, by clicking the circled number on the left of each channel name
- Multiple at the same time, by checking the checkbox at the left of each number and then clicking **Open selected**
  or **Closed selected**
- All at the same time, by clicking **Open all** and **Close all**

#### One-by-one

![](images/Section3.1.png)

(The user clicked the **2**, **4** and **6** buttons, opening channels 2, 4 and 6)

#### Multiple selection

![](images/Section3.2.png)

(The user checked the **1**, **3** and **5** checkboxes, and then opened them by clicking **Open selected**)

### Custom names

![](images/Section3.3.png)

The user can customize the names of the channel by editing the text field. This is useful to label each channel with its
contents during an experiment.