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Title: Review of low-cost self-driving laboratories in chemistry and materials science: the “frugal twin” concept

Journal Article · · Digital Discovery
DOI: https://doi.org/10.1039/d3dd00223c · OSTI ID:2333052
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [4]; ORCiD logo [6]; ORCiD logo [7];  [8]; ORCiD logo [9]; ORCiD logo [1]; ORCiD logo [10]; ORCiD logo [1]
  1. Univ. of Toronto, ON (Canada)
  2. Univ. of Toronto, ON (Canada); Univ. of Utah, Salt Lake City, UT (United States)
  3. Fordham Univ., The Bronx, NY (United States)
  4. Univ. of Chicago, IL (United States); Argonne National Laboratory (ANL), Argonne, IL (United States)
  5. AstraZeneca (United Kingdom)
  6. Univ. Nacional Autonoma de Mexico (UNAM), Mexico City (Mexico)
  7. Univ. of Tennessee, Knoxville, TN (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
  8. Air Force Research Lab. (AFRL), Wright-Patterson AFB, OH (United States)
  9. Univ. of Washington, Seattle, WA (United States)
  10. Univ. of Utah, Salt Lake City, UT (United States); Univ. of Liverpool (United Kingdom)

This review proposes the concept of a “frugal twin,” similar to a digital twin, but for physical experiments. Frugal twins range from simple toy examples to low-cost surrogates of high-cost research systems. For example, a color-mixing self-driving laboratory (SDL) can serve as a low-cost version of a costly multi-step chemical discovery SDL. Frugal twins already provide hands-on experience for SDLs with low costs and low risks. They can also offer as test beds for software prototyping (e.g., optimization, data infrastructure), and a low barrier to entry for democratizing SDLs. However, there is room for improvement. The true value of frugal twins can be realized in three core areas. Firstly, hardware and software modularity; secondly, purpose-built design (human-inspired vs. hardware-centric vs. human-in-the-loop); and thirdly state-of-the-art (SOTA) software (e.g., multi-fidelity optimization). We also describe the ethical benefits and risks that come with the democratization of science through frugal twins. For future work, we suggest ideas for new frugal twins, SDL educational course outcomes, and a classification scheme for autonomy levels.

Research Organization:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0019288
OSTI ID:
2333052
Journal Information:
Digital Discovery, Journal Name: Digital Discovery Journal Issue: 5 Vol. 3; ISSN 2635-098X
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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