A Poloxamine–Polylysine Acrylate Scaffold for Modular Tissue Engineering
Why this work is in the frame
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Bibliographic record
Abstract
A new polymer, poloxamine-polylysine acrylate (PPA), was synthesized for tissue-engineering applications. Polylysine was used to confer endothelial cell attachment properties to the poloxamine-based polymer, while the acrylate groups made it photo-cross-linkable. The PPA polymer was synthesized in three reaction steps. (1) Polylysine was acrylated using N-hydroxysuccinimide acrylic acid ester and the reaction product was characterised by (1)H-NMR. (2) The hydroxyl groups on poloxamine were activated by tresylation with tresyl chloride and the reaction product (tresylated poloxamine) was characterised by ICP-AES for sulphur content. (3) The acrylated polylysine was reacted with the activated poloxamine to obtain the final product, poloxamine-polylysine acrylate. The final product was characterised by CHN elemental analysis. Aqueous solutions containing a mixture of PPA and poloxamine methacrylate were photo-cross-linked by exposure to a 365 nm UV light source in the presence of a photoinitiator to obtain hydrogels. The synthesized PPA polymer enhanced endothelial cell adhesion on poloxamine-based, photo-cross-linked hydrogel scaffolds. The same synthesis methods can be used in the future to introduce other desired functions (through other peptides) into the scaffold biomaterial.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 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