Surface Plasmons Control the Dynamics of Excited Triplet States in the Presence of Gold Nanoparticles
Bibliographic record
Abstract
Aqueous gold nanoparticles (AuNPs) cause a large increase in the yield of methylene blue triplets ((3)MB*) obtained upon 650 nm laser excitation as a result of surface plasmon field interactions that can be described as transmitter-receiver antenna effects. Two distinct (3)MB* populations are observed; a fast decaying one (tau(T) approximately 25 ns) is believed to be due to molecules on the AuNP surface at the time of excitation and is described as static quenching. A longer lived (3)MB* population has lifetimes in the tens of microseconds but is subject to an anomalously high rate constant for a AuNP quenching of 6.4 x 10(13) M(-1) s(-1). This ultrafast quenching is attributed to a nonrandom distribution caused by the AuNP plasmon field that preferentially excites MB molecules located in the proximity of the AuNP where they are subject to antenna type interactions with the nanoparticle and are spatially predisposed for efficient quenching.
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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 | 0.001 | 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 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".