Surface-plasmon resonance sensing of alcohol with electrodeposited polythiophene and gold nanoparticle-oligothiophene films
Bibliographic record
Abstract
Electrodeposited films of polythiophene or gold nanoparticles (NPs) capped with conjugated oligothiophenes prepared on thin gold films are employed in a Kretschmann-type surface-plasmon resonance detector. The polythiophene films selectively respond to alcohol (ethanol or methanol) and toluene vapors but not to hexanes or water vapors, while the nanoparticle/oligothiophene films respond only to alcohol vapors of the solvents tested. For both films, the response to vapors consisted of the minimum in the reflectance curve (θ0) shifting to a higher angle as the thickness of the film increased. Slight increases in dielectric constant were also observed. The NPs do not result in an enhancement in sensitivity, contrary to theoretical predictions that suggest greater sensitivity may be achieved due to localized surface-plasmon effects associated with the presence of the Au NPs in the dielectric.
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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 | 0.000 |
| 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".