Electrocatalytic Oxidation of NADH on Graphene Oxide and Reduced Graphene Oxide Modified Screen-Printed Electrode
Bibliographic record
Abstract
A facile method, Graphene Oxide (GO) modified electrochemically pre-anodized screen-printed carbon electrodes (SPCEs), was developed for the determination of nicotinamide adenine dinucleotide (NADH) in neutral aqueous solution. Compared with the bare SPCEs and the reduced Graphene Oxide (rGO) modified SPCEs (rGO/SPCEs), the GO/SPCEs exhibit greatly enhanced electrocatalytic oxidation toward NADH. The scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) provide the substantial evidence for the formation of edge-plane sites on the surface of SPCEs, rGO/SPCEs and GO/SPCEs. The GO/SPCEs show the excellent electrochemical character for the determination of NADH in the range from 0.8 to 500 μM with a detection limit of 0.10 μM. The formation of oxidation product NAD+ was confirmed by in-situ UV-Vis spectroelectrochemistry. It shows a great promise for the design of the disposable amperometric biosensor for NADH.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".