Dynamics of water at membrane surfaces: Effect of headgroup structure
Why this work is in the frame
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Bibliographic record
Abstract
Atomistic molecular dynamics simulations of fully hydrated 1-palmitoyl-2-oleoyl-phosphatidylcholine (POPC), 1-palmitoyl-2-oleoyl-phosphatidylethanolamine (POPE), and 1-palmitoyl-2-oleoyl-phosphatidylglycerol (POPG) bilayers in the liquid-crystalline state were carried out to investigate the effect of different lipid headgroups on the dynamics of water at the bilayer surface in short 80 ps time scales. Results obtained in these studies show that the hydrogen bonding amine group of POPE and the glycerol group of POPG slow water motion more than the equivalent choline group of POPC. Therefore, it is surprising that the effect of a POPC bilayer surface on water dynamics is similar to that of POPE and POPG bilayers. That result is due to a much higher number of water molecules interacting with the choline group of POPC than hydrogen-bonded molecules interacting with amine or glycerol groups of POPE and POPG.
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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 | 0.000 |
| 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 it