Photoinduced Fluorescence Changes in Selected Bacterial Strains Under 405 nm Laser Excitation: An In Vitro Hue-Based Monitoring Approach
Agnieszka Urbańska, Magdalena Pajączkowska, Joanna Nowicka, Julia Kensy, Jan Kiryk, Łucja Janek, Rafał Wiench, Dariusz Skaba, Maciej Dobrzyński, Jacek Matys · 2026
Read Photoinduced Fluorescence Changes in Selected Bacterial Strains Under 405 nm Laser Excitation: An In Vitro Hue-Based Monitoring Approach by Agnieszka Urbańska, Magdalena Pajączkowska, Joanna Nowicka, Julia Kensy, Jan Kiryk, Łucja Janek, Rafał Wiench, Dariusz Skaba, Maciej Dobrzyński, Jacek Matys (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13515274.txt.
Description
Agnieszka Urbańska and nine colleagues test, in a 2026 lab study, whether the glow bacteria give off under violet light can track how cultures change over time. Twenty-eight reference strains grew on agar plates, eight colonies each. Every day or so for a week, the team shone a 405 nanometre laser on the same colonies and photographed them with a phone camera through a yellow filter. Software then extracted the hue, the dominant colour tone, from each image.
Hue values shifted over time and differed between strains, with clear interactions between the two. A few strains, among them Staphylococcus aureus and Proteus mirabilis, showed visible change. Yet the hue ranges overlapped heavily, blurring the line between strains. Urbańska's team concludes that hue tracking can follow fluorescence change inside one dataset, but it cannot name a bacterium on its own. Camera limits add to that caution.
Catalog record
| CREATOR | Agnieszka Urbańska, Magdalena Pajączkowska, Joanna Nowicka, Julia Kensy, Jan Kiryk, Łucja Janek, Rafał Wiench, Dariusz Skaba, Maciej Dobrzyński, Jacek Matys |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 52282 |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |