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It's great when things run quickly: 20 minutes per extraction process and a new plate every 2.5 minutes – the Dutch company Synchron Lab Automation, in cooperation with Festo, has developed a small automated factory for DNA extraction. As a result, customers in the seed industry can collect DNA from up to 40,000 samples per day.
“In fact, we’ve actually created a very small factory", explains Niels Kruize, responsible for business development at Synchron Lab Automation. “Recently, one of our customers made a priceless statement. He said, “This is so beautiful and at the same time so simple, I just don’t understand why it hasn’t been invented before.”
The process running on the machine is used in the agricultural industry for plant breeding. The DNA is extracted from shredded plant material. Components from Festo carry out important functions in all extraction phases. The process begins with a holder which accommodates up to 400 microwell plates – 200 for input and 200 for output.
Festo’s Bert Baas adds: “It’s a perfect example of a combination of industrial and laboratory automation.” The machine’s hardware is subdivided into functions, each of which is designed as simply and efficiently as possible. The small factory is equipped with serial instead of parallel drives. Plates are continuously moved and positioned throughout the pipetting, rinsing and washing stations.
Right from the start, the developers at Synchron received intensive support from Festo. Key Account Manager Bert Baas from Festo explains: “Our automation experts provided support throughout the entire development of the extraction machine. For example, they suggested using the new CPX-E unit to provide genuine added value. They used the unit in this project before it was even available on the market.”
Identifying, transporting, washing and extracting: Festo components perform decisive functions in all phases of the process.
The extraction machine runs continuously for eight hours and can also be operated 24 hours a day without any problems in case of increased demand. Its capacity is already eight times greater than other options currently available on the market.
The bar code reader SBSI scans all the microwell plates at the start of a run. Electric axes EGC, in combination with a semi-rotary drive DRRD and a gripper DHPS, pick up the microwell plates and place them on carriers which move through the various stations on a transport system.
Metal micro-spheres are added to separate the DNA from the other material. The DNA attaches itself to the micro-spheres, while the rest of the material floats up in the microwell plates. Liquid is added to and extracted from the microwell plates at several washing stations. The pipetting head is lowered by an electric slide EGSC during this process. After rinsing, clean DNA remains in the microwell plate and is fed to the final processing step, namely DNA extraction, via the transport system.
Handling the pipetting head for extracting the DNA is the responsibility of electric axes EGC in combination with an electric slide EGSL. Each plate has 96 samples and takes twenty minutes from start to finish, and a new plate is started every 2.5 minutes.
The machine has a serial and modular design with almost no switching delays. The CPX-E and valve terminals VTUG with IO-Link® are used to control the system. The CPX-E has been developed as a remote I/O system or PLC with EtherCAT master controller and motion controller to ensure a simple combination of the control unit with the electric drives.
Derk Wilten, owner and managing director of Synchron Lab Automation, explains how cooperation with Festo began: “We only used to focus on the concept of a solution and then had it built by a partner. That's because originally we’re a software company. When Niels Kruize joined the company, he explained us he firmly believed we should be building turnkey solutions ourselves. Niels Kruize is responsible for business development at Synchron Lab Automation. He used to work in England where he collaborated closely with Festo. On the basis of his positive experience, he suggested launching our first in-house designed product with engineering know-how and components from Festo.”
Niels Kruize elaborates: “Festo is a leading company with a global network of component suppliers, as well as global service and support. The experts from Festo helped us with the design engineering and shared their knowledge with us. It has been very valuable that they’re active in different markets.” Synchron supplies customers all over the world, so they are very pleased about the cooperation with a partner who can deliver parts in Germany as fast as in Singapore. Derk Wilton was quickly convinced: "Festo uses the same work methods as we do. It's very reassuring to work with a partner who believes in the project."
Good team (left to right): Niels Kruize (Synchron), Bert Baas (Festo) and Derk Wilten (Synchron).
Niels Kruize is very pleased that his confidence in the collaboration has been confirmed. “It provides us with tremendous added value. Cooperation is a genuine partnership for both sides. For both companies, this project is a completely new undertaking – and the communication technology is new for us as well. We learn from each other and look to the future, to what the next step could be.” Bert Baas: “We discuss new technologies with Synchron and anticipate the opportunities they offer.”
Synchron has been developing laboratory automation solutions since 1985 and specializes in automated liquid, tube and plate handling. In recent years, Synchron has added the de-novo design and construction of specialized automated platforms for the Agbio industry to its portfolio. These include SeedPicking, Germination, SeedHealth testing and DNA purification systems. Synchron's software platform Experimate™ offers a user-friendly interface and controls all systems and connected modules from Synchron - from the LIMS connection to the automated workstation.