Atomic force microscopic and encrustation studies of novel prospective polyisobutylene‐based thermoplastic elastomeric biomaterials
Why this work is in the frame
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Bibliographic record
Abstract
Abstract This paper investigates the surface morphology of polyisobutylene–polystyrene (PIB–PS) block‐type thermoplastic elastomers, emerging new biomaterials, by atomic force microscopy (AFM). A novel aborescent PIB–PS block polymer (AR15) was synthesized through inimer ‐type living carbocationic polymerization and characterized in comparison with a semi‐commercial PIB–PS thermoplastic elastomer (TPE) (TS30). Tapping‐mode AFM revealed that PS spheres with a domain size of 45–60 nm were very irregularly distributed in the continuous PIB phase of the aborescent AR15 polymer, whereas ordered and mixed cylindrical/lamellar morphology with 25–31 nm hard phase appeared in a linear TS30 triblock polymer. Moreover, AFM revealed rough surface features of a 1 mm thick compression molded TS30 polymer disk coated with a probiotic protein. AR15 disks were used for in vivo urinary tract encrustation study. Encrustation of the PIB–PS disks was comparable or better than that of medical‐grade silicone rubber. The preliminary results imply the prospect of PIB–PS thermoplastic elastomers as emerging soft biomaterials. Copyright © 2003 John Wiley & Sons, Ltd.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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