Sidekick: A Low-Cost Open-Source 3D-printed liquid dispensing robot

Keesey, Rodolfo; LeSuer, Robert J.; Schrier, Joshua

doi:10.1016/j.ohx.2022.e00319

Cited by 22 publications

(22 citation statements)

References 23 publications

(35 reference statements)

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“…For example, if more time were spent scaffolding the programming and data analysis aspects, this could also be used in a high-school chemistry course. Physical or analytical chemistry courses could incorporate the nonideality of the ionic system, , adapting the PbI 2 solubility lab of Green et al Analytical chemistry students could engage more extensively with the equipment by building and calibrating the Sidekick robot dispensing system before applying it to this problem. An instrumental/quantitative analysis or computer-programming-for-chemists course might incorporate basic image analysis, such as counting the number of yellow precipitate pixels in each cell and relating this to the distance of each point from the equilibrium curve.…”

Section: Discussionmentioning

confidence: 99%

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A Modern Twist on an Old Measurement: Using Laboratory Automation and Data Science to Determine the Solubility Product of Lead Iodide

Norquist,

Jones-Thomson,

et al. 2023

J. Chem. Educ.

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Laboratory automation and data science are valuable new skills for all chemists, but most pedagogical activities involving automation to date have focused on upper-level coursework. Herein, we describe a combined computational and experimental lab suitable for a first-year undergraduate general chemistry course, in which these topics are introduced in the context of determination of the solubility equilibrium constant of lead iodide. Students analyze their data using logistic regression analysis, which has a physical interpretation in terms of the solubility equilibrium expression and its stoichiometric coefficients. In addition to laboratory automation, data visualization, and data fitting skills, students also practice core laboratory skills such as the preparation of stock solutions using a volumetric flask and the use of micropipets. To keep the lab affordable, we demonstrate the use of a low-cost 3D-printed liquid dispensing robot to perform the automated experiment in addition to a commercial liquid-handling robot. Example pre-and post-lab computational notebooks are provided in both Mathematica and Python programming languages.

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Section: Discussionmentioning

confidence: 99%

“…A low-cost approach to automation used the Sidekick liquid dispenser robot, which can be built for under $800 USD in about 4 h . Sidekick uses digital dispensing pumps which are precalibrated to dispense 10 μL per cycle, minimizing the need for extensive volumetric or gravimetric calibration.…”

Section: Description Of the Laboratorymentioning

confidence: 99%

A Modern Twist on an Old Measurement: Using Laboratory Automation and Data Science to Determine the Solubility Product of Lead Iodide

Norquist,

Jones-Thomson,

et al. 2023

J. Chem. Educ.

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“…An IDE software (e.g. Thonny IDE which embeds the latest version of Python) [39] with built-in communication to interact with REPL.…”

Section: Methodsmentioning

confidence: 99%

Platform for hands-on remote labs based on the ESP32 and NOD-red

et al. 2023

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“…We observe that open hardware is common for foundational chemical tasks ( i.e. , liquid handling 21–25 ) but has been slower to realize for more specialized tasks like stability testing. Ideally, sharing these learnings may expedite the processes of creating and adapting future specialized open hardware.…”

Section: Introductionmentioning

confidence: 99%

“…We report key learnings from this technology translation process with the goal of dening a set of best practices for open hardware reporting. We observe that open hardware is common for foundational chemical tasks (i.e., liquid handling [21][22][23][24][25] ) but has been slower to realize for more specialized tasks like stability testing. Ideally, sharing these learnings may expedite the processes of creating and adapting future specialized open hardware.…”

Section: Introductionmentioning

confidence: 99%