Preparation and characterization of crosslinked carboxymethyl chitosan–oxidized sodium alginate hydrogels
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Bibliographic record
Abstract
Abstract Oxidized sodium alginate (OSA) was prepared through an oxidation reaction of sodium alginate in the presence of sodium periodate. In situ crosslinked hydrogels were obtained through the crosslinking reaction between the active aldehyde of OSA and the amino of the carboxymethyl chitosan (CMCS). The effects of the addition of OSA on the structure and properties of the hydrogels are discussed. The structures of OSA, CMCS, and the hydrogels were analyzed by Fourier transform infrared spectroscopy, and the morphology of the hydrogels was characterized by X‐ray diffraction and scanning electron microscopy. The results from the gelation time test show that the hydrogels had the shortest gelation time of 6.3 s when the addition of OSA was 8 mL. The results from the swelling degree determination test showed that the hydrogel swelling degree first increased and then decreased with the addition of OSA. With the introduction of nanosilver, the hydrogels showed a degree of antibacterial performance. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011.
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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 | 0.001 |
| 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