Structural and systematic studies of a 3x3 isomer grid of nine<i>N</i>-(fluorophenyl)pyridinecarboxamides
Bibliographic record
Abstract
Page s251 s251Mixtures of γ-oryzanol and β-sitosterol can form transparent organogels in edible oils.This process is a nice example of molecular self-assembly, where γ-oryzanol and β-sitosterol molecules form very well-defined supramolecular entities.Small-angle X-ray scattering (SAXS) was used to elucidate the microstructure of the building blocks of these organogels in sunflower oil [3].The measurements were performed at the high-brilliance ID2 beamline of the European Synchrotron Radiation Facility (ESRF) in Grenoble, France, allowing collection of SAXS data in the range 0.06<q/nm-1<4.5.Differential Scanning Calorimetry (DSC) was used to study the dissolution, melting and crystallisation behaviour of these systems during a heating-cooling-heating cycle.It was found that the γ-oryzanol + β-sitosterol system forms tubules with a diameter of 7.2±0.1 nm and a wall thickness of 0.8±0.2nm.Tubules prepared with γ-oryzanol-rich structurant show the least bundle formation, and can be supercooled during formation most easily.The tubes vanish at the melting point of the gel, in agreement with the loss of structuring capacity as observed in earlier experiments.Moreover, a number of alternative sterols (e.g.stigmasterol, cholesterol, cholestanol) can replace β-sitosterol in the tubules.The diameter of the tubules for these systems varies between 7.2 and 8.0 nm, the wall thickness between 0.6 and 1.1 nm.The microstructure of the sterol(esters) in emulsions differs from that in pure oil.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| 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) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".