View in EDS

Capillary microsampling enables on-site collection and storage of plant sap.

Saved in:
Bibliographic Details
Title: Capillary microsampling enables on-site collection and storage of plant sap.
Authors: Hedberg, Ellinor1 (AUTHOR), Sebastián-Azcona, Jaime2 (AUTHOR), Ribet, Federico1 (AUTHOR), Hernandez-Santana, Virginia2 (AUTHOR), Stemme, Göran1 (AUTHOR), Espejo, Antonio Diaz2 (AUTHOR), Roxhed, Niclas1,3 (AUTHOR) roxhed@kth.se
Source: Lab on a Chip. 6/2/2026, Vol. 26 Issue 11, p3485-3492. 8p.
Subjects: Sap (Plant), Microfluidic devices, Tomatoes, Plant hormones
Abstract: Plant sap analysis typically relies on destructive sampling and immediate freezing, limiting field deployment and longitudinal studies. We introduce a minimally invasive microfluidic device that extracts sap from the stem of Solanum lycopersicum and dries it in situ, enabling storage analogous to dried blood spots in humans. Using both artificial phytohormone mixtures and tomato sap, we assessed the stability of dried samples stored at room temperature for up to seven days and observed no substantial degradation of key phytohormones. Device performance was further validated in a paired sampling experiment, showing strong agreement with a conventional stem severing method for tZR and ABA quantification. These findings demonstrate that dried sap sampling via a microfluidic device provides a practical, field ready alternative to destructive methods, supporting repeated sampling from the same plant and enabling longitudinal metabolic monitoring. [ABSTRACT FROM AUTHOR]
Copyright of Lab on a Chip is the property of Royal Society of Chemistry and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:Plant sap analysis typically relies on destructive sampling and immediate freezing, limiting field deployment and longitudinal studies. We introduce a minimally invasive microfluidic device that extracts sap from the stem of Solanum lycopersicum and dries it in situ, enabling storage analogous to dried blood spots in humans. Using both artificial phytohormone mixtures and tomato sap, we assessed the stability of dried samples stored at room temperature for up to seven days and observed no substantial degradation of key phytohormones. Device performance was further validated in a paired sampling experiment, showing strong agreement with a conventional stem severing method for tZR and ABA quantification. These findings demonstrate that dried sap sampling via a microfluidic device provides a practical, field ready alternative to destructive methods, supporting repeated sampling from the same plant and enabling longitudinal metabolic monitoring. [ABSTRACT FROM AUTHOR]
ISSN:14730197
DOI:10.1039/d6lc00201c