Picoamperometric Detection of Glucose at Ultrasmall Platinum-Based Biosensors: Preparation and Characterization
Why this work is in the frame
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Bibliographic record
Abstract
A simple method is described for the construction of a glucose biosensor with good reproducibility. After electrochemical etching, the sensing tip of an etched platinum microelectrode was insulated using a synthetic rubber dip coating. The insulating layer was then heat-cured, leading to a small exposed area at the very end of the etched Pt tip, as confirmed by scanning electron microscopy. Phenol and 2-allylphenol were electropolymerized to form an extra insulating layer that effectively retained glucose oxidase (GOX) on the sensing tip of the electrode. On the basis of cyclic voltammetry measurements, the apparent radius of the biosensor tip was estimated to be between 10 and 500 nm, depending on GOX loading. With operational and storage stabilities over 3 weeks, the glucose biosensor prepared using optimal GOX concentration (10 mg/mL) exhibited a picoamperometric current response within approximately 2 s and a detection limit of 20 microM with excellent reproducibility.
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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 it