Automatic Raman Measurements in a High-Throughput Bioprocess Development Lab

Fuente: arXiv
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Autores principales: Lange, Christoph, Seidel, Simon, Altmann, Madeline, Stors, Daniel, Kemmer, Annina, Cai, Linda, Born, Stefan, Neubauer, Peter, Bournazou, M. Nicolas Cruz
Formato: Preprint
Publicado: 2025
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author Lange, Christoph
Seidel, Simon
Altmann, Madeline
Stors, Daniel
Kemmer, Annina
Cai, Linda
Born, Stefan
Neubauer, Peter
Bournazou, M. Nicolas Cruz
author_facet Lange, Christoph
Seidel, Simon
Altmann, Madeline
Stors, Daniel
Kemmer, Annina
Cai, Linda
Born, Stefan
Neubauer, Peter
Bournazou, M. Nicolas Cruz
contents This study presents a collection of physical devices and software services that fully automate Raman spectra measurements for liquid samples within a robotic facility. This method is applicable to various fields, with demonstrated efficacy in biotechnology, where Raman spectroscopy monitors substrates, metabolites, and product-related concentrations. Our system specifically measures 50 $\micro L$ samples using a liquid handling robot capable of taking 8 samples simultaneously. We record multiple Raman spectra for 10s each. Furthermore, our system takes around 20s for sample handling, cleaning, and preparation of the next measurement. All spectra and metadata are stored in a database, and we use a machine learning model to estimate concentrations from the spectra. This automated approach enables gathering spectra for various applications under uniform conditions in high-throughput fermentation processes, calibration procedures, and offline evaluations. This allows data to be combined to train sophisticated machine learning models with improved generalization. Consequently, we can develop accurate models more quickly for new applications by reusing data from prior applications, thereby reducing the need for extensive calibration data.
format Preprint
id arxiv_https___arxiv_org_abs_2504_11234
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Automatic Raman Measurements in a High-Throughput Bioprocess Development Lab
Lange, Christoph
Seidel, Simon
Altmann, Madeline
Stors, Daniel
Kemmer, Annina
Cai, Linda
Born, Stefan
Neubauer, Peter
Bournazou, M. Nicolas Cruz
Quantitative Methods
This study presents a collection of physical devices and software services that fully automate Raman spectra measurements for liquid samples within a robotic facility. This method is applicable to various fields, with demonstrated efficacy in biotechnology, where Raman spectroscopy monitors substrates, metabolites, and product-related concentrations. Our system specifically measures 50 $\micro L$ samples using a liquid handling robot capable of taking 8 samples simultaneously. We record multiple Raman spectra for 10s each. Furthermore, our system takes around 20s for sample handling, cleaning, and preparation of the next measurement. All spectra and metadata are stored in a database, and we use a machine learning model to estimate concentrations from the spectra. This automated approach enables gathering spectra for various applications under uniform conditions in high-throughput fermentation processes, calibration procedures, and offline evaluations. This allows data to be combined to train sophisticated machine learning models with improved generalization. Consequently, we can develop accurate models more quickly for new applications by reusing data from prior applications, thereby reducing the need for extensive calibration data.
title Automatic Raman Measurements in a High-Throughput Bioprocess Development Lab
topic Quantitative Methods
url https://arxiv.org/abs/2504.11234