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--- o2_sensor [2025/01/17 02:52] – kenson
+++ o2_sensor [2025/01/30 20:43] (current) – kenson
@@ Line 3: / Line 3: @@
   * {{ :ocr60.pdf | Whitepaper describing use of 9,10-Diphenylanthracene for oxygen detection}}
   * The oxygen quenching is predicted by the Stern-Volmer equation, and changes in intensity or lifetime of the fluorescence can be monitored
+  * Ruthenium complex
+    * [[https://www.cyanagen.com/products/rubp3-pf62-ruthenium-complexes/]]
+    * [[https://www.cyanagen.com/cyanacontent/uploads/Products/RuBP3-PF62/Documents/SDS/EN-IS_RuBP3-PF62-F3R050X_rev01.pdf]]
+    * [[https://www.ruixibiotech.com/pts/ru-bpy3-pf6-2]] CAS: 60804-74-2 $400/g
+    * {{:rubp3-pf62_transient_absorption.png?direct&400|}}
+  * [[https://www.eevblog.com/forum/projects/accurate-pulse-width-measurement/]]
+  * [[https://www.ti.com/product/TDC7200]]
+    * Datasheet: [[https://www.ti.com/lit/ds/symlink/tdc7200.pdf]]
+    * [[https://github.com/Yveaux/TDC7200]]
+  * {{ :quenching_of_the_fluorescence_of_tris_2_2_bipyridine_ruthenium.pdf |Quenching of the Fluorescence of Tris (2,2’-Bipyridine) Ruthenium(II),
+[Ru(bipy)3]2+, by a Dimeric Copper(II) Complex}}
 ==== 390nm LED ====
@@ Line 112: / Line 123: @@
 A good **starting point** is **0.01–0.1 wt% rubrene** relative to the PDMS base. Begin on the lower side (e.g., **0.02–0.05 wt%**) to avoid aggregation, see how bright the sensor is at 450 nm excitation, and adjust accordingly. Once you have a homogeneously dispersed rubrene-PDMS film, you can calibrate its oxygen response using the Stern–Volmer equation and fine-tune the formulation to optimize fluorescence intensity versus oxygen quenching sensitivity.
-==== pH ====
+==== pH optode sensor notes ====
   * {{ :nandi-amdursky-2022-the-dual-use-of-the-pyranine-_hpts_-fluorescent-probe-a-ground-state-ph-indicator-and-an-excited_1_.pdf | Pyranine (HPTS) Fluorescent Probe}}
   * Pyranine Solvent Green 7 CAS 6358-69-6 aka HPTS aka Pyranine