On the Apparent Fluorescence Recovery Due to Electrosorption
Bibliographic record
Abstract
Unusual fluorescence characteristics of a carbocyanine dye/octadecanol layer adsorbed onto a Au(111) electrode surface are described. The potential of the electrochemical interface controls the distance separating a previously adsorbed organic layer and the metal electrode by way of a unique adsorption/desorption process. The behavior of the fluorescent-labeled organic layer was monitored under full potential control with epi-fluorescence microscopy and image analysis. For an adsorbed layer, fluorescence is quenched by nonradiative energy transfer into the metal. When desorbed, intense fluorescence was observed due to the separation of the surfactant from the metal surface. In this desorbed state, the surfactant displayed a strong decay in fluorescence intensity with time (loss of 90% over 20 min). We describe two parallel pathways for this fluorescence decay: irreversible photodestruction of the carbocyanine fluorophore and reversible fluorophore aggregation resulting in a decrease in monomer fluorescence. Readsorption of the surfactant layer onto the metal electrode resulted in a near total (85%) recovery of fluorescence measured after desorption of the surfactant layer. The readsorption of the organic monolayer onto the electrode was believed to convert the nonfluorescent aggregates back to the monomer form. These observations were made possible due to the control of the distance separating the fluorescent-labeled organic layer from the metal afforded by the electrical variable.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".