Electroactivity and Stability of Polylactide/Polypyrrole Composites
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Electrically conductive biodegradable composites are useful in biomedical engineering to mediate electrical interactions between cells and electrical components. Because conductive polymers are often subjected to progressive oxidative deterioration and dedoping, their electrical stability in aqueous environment is, therefore, critical. We used cyclic voltammetry (CV) to investigate the electroactivity and stability of conductive membranes made of only 5% conductive polypyrrole (PPy) particles blended with 95% insulating polylactide (PLLA). During 1000 CV scans, the electroactivity of the composite membranes revealed a period of initial activation, followed by a relatively stable period and subsequent slow deterioration process. PPy membranes doped with heparin, a cell-adhesive polysaccharide and polyanion, displayed electrical stability superior to that of PPy membranes doped with chlorine anions. The latter, however, recorded a higher initial electroactivity during the first ca. 150 scans. XPS analysis showed that the deterioration of the electroactivity was likely due to the oxidation of the PPy. ATR-FT-IR and SEM were also used to characterize the materials. The PLLA/PPy membranes were thus electroactive and maximum electroactivity was achieved through an activation process. The heparin-doped PPy composite was electrically stable and may, thus, be used for multiple long-term electrical stimulations.
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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 | 0.002 | 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 | 0.001 |
| 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