Low-Fouling Amine-Terminated Poly(ethylene glycol) Thin Layers and Effect of Immobilization Conditions on Their Mechanical and Physicochemical Properties
Bibliographic record
Abstract
The physicochemical and mechanical properties of amine-terminated covalently bound poly(ethylene glycol) (PEG) layers are dependent on fabrication methods. In particular, the use of a ϑ solvent yields dense polymer layers with properties not well described by traditional models. Light diffraction techniques were used in an attempt to understand the influence of polymer aggregation kinetics in a ϑ solvent on the final properties of the fabricated PEG layers. The polymer layer properties were characterized using X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) in force mode, quartz crystal microbalance (QCM), and fluorescence microscopy. Results show that polymer concentration in solution is an important indicator of final layer properties and that the use of a ϑ solvent induces complex aggregation phenomena in solution yielding layers with widely different properties. The PEG layers fabricated through the process described in this article are also shown to present chemically available primary amine groups, paving the way for the immobilization of bioactive molecules.
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How this classification was reachedexpand
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 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".