# DevNote Discuss: Theophylline-LacZ sensor validation in Nucleus Cytosol

**URL:** <https://forum.nucleus.engineering/t/devnote-discuss-theophylline-lacz-sensor-validation-in-nucleus-cytosol/51>\
**Category:** DevNotes\
**Created:** [May 8, 2026, 8:20pm UTC](https://forum.nucleus.engineering/t/devnote-discuss-theophylline-lacz-sensor-validation-in-nucleus-cytosol/51 "2026-05-08T20:20:44Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![system](https://canada1.discourse-cdn.com/flex030/uploads/nucleus/original/1X/f28b2254cdde2fe0ff297d74535522060800ddc0.png) [@system](https://forum.nucleus.engineering/u/system)\
**Post date:** [May 8, 2026, 8:20pm UTC](https://forum.nucleus.engineering/t/devnote-discuss-theophylline-lacz-sensor-validation-in-nucleus-cytosol/51/1 "2026-05-08T20:20:44Z")

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A new [Developer Note](https://devnotes.nucleus.engineering/articles/bnext-devnotes-mn-260508-02) from Maram Naji validating the Theophylline-LacZ sensor in Nucleus Cytosol is now online. Please comment below!