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Home NEWS Science News Chemistry

Putting artificial intelligence to work in the lab

Bioengineer by Bioengineer
March 19, 2020
in Chemistry
Reading Time: 3 mins read
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Automated scanning probe microscopy controlled by artificial intelligence/machine learning

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Credit: FLEET

  • Automated Scanning Probe Microscopy (SPM) controlled by artificial intelligence
  • First demonstration of fully autonomous, long-term SPM operation

An Australian-German collaboration has demonstrated fully-autonomous SPM operation, applying artificial intelligence and deep learning to remove the need for constant human supervision.

The new system, dubbed DeepSPM, bridges the gap between nanoscience, automation and artificial intelligence (AI), and firmly establishes the use of machine learning for experimental scientific research.

“Optimising SPM data acquisition can be very tedious. This optimisation process is usually performed by the human experimentalist, and is rarely reported,” says FLEET Chief Investigator Dr Agustin Schiffrin (Monash University).

“Our new AI-driven system can operate and acquire optimal SPM data autonomously, for multiple straight days, and without any human supervision.”

The advance brings advanced SPM methodologies such as atomically-precise nanofabrication and high-throughput data acquisition closer to a fully automated turnkey application.

The new deep learning approach can be generalised to other SPM techniques. The researchers have made the entire framework publicly available online as open source, creating an important resource for the nanoscience research community.

FULLY-AUTONOMOUS DeepSPM

“Crucial to the success of DeepSPM is the use of a self-learning agent, as the correct control inputs are not known beforehand,” says Dr Cornelius Krull, project co-leader.

“Learning from experience, our agent adapts to changing experimental conditions and finds a strategy to maintain the system stable,” says Dr Krull, who works with Dr Shiffrin at Monash School of Physics and Astronomy.

The AI-driven system begins with an algorithmic search of the best sample regions and proceeds with autonomous data acquisition.

It then uses a convolutional neural network to assess the quality of the data. If the quality of the data is not good, DeepSPM uses a deep reinforcement learning agent to improve the condition of the probe.

DeepSPM can run for several days, acquiring and processing data continuously, while managing SPM parameters in response to varying experimental conditions, without any supervision.

The study demonstrates fully autonomous, long-term SPM operation for the first time by combining:

  • an algorithmic approach for sample area selection and SPM data acquisition;
  • supervised machine learning using convolutional neural networks for quality assessment and classification of SPM data, and
  • deep reinforcement learning for dynamic automated in-situ probe management and conditioning.

###

THE STUDY

Artificial-intelligence-driven scanning probe microscopy was published in Communications Physics in March 2020.

Researchers at Monash University’s School of Physics and Astronomy worked closely with collaborators at the Max Planck Institute of Molecular Cell Biology and Genetics (Dresden), Max Delbrück Center for Molecular Medicine (Berlin) and Heidelberg University.

All experiments were performed at Monash, partly funded by the Australian Research Council. Computations were performed at the Center for Information Services and High Performance Computing (European Research Council funded).

SPMs and FLEET

Dr Schiffrin’s group at FLEET uses SPM to investigate the atomic-scale properties – structural and electronic – of new nanomaterials with potential use in future low-energy electronic technologies.

FLEET is an Australian Research Council-funded research centre bringing together over a hundred Australian and international experts to develop a new generation of ultra-low energy electronics.

Media Contact
Errol Hunt
[email protected]
041-337-0803

Original Source

http://www.fleet.org.au/blog/putting-artificial-intelligence-to-work-in-the-lab

Related Journal Article

http://dx.doi.org/10.1038/s42005-020-0317-3

Tags: Chemistry/Physics/Materials SciencesMaterialsNanotechnology/MicromachinesRobotry/Artificial IntelligenceSuperconductors/Semiconductors
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