Nanostructured free surfaces in plant-based plywoods driven by chiral capillarity
Bibliographic record
Abstract
Periodic nano-structured surfaces in Nature are responsible for functionalities such as iridescent colors observed in some flower petal surfaces that act as diffraction gratings. We present a theoretical scaling and computational analysis of the formation and structural characteristics of surface nano-wrinkling using the well-known cellulose chiral liquid crystals (LC) material model system that displays the twisted plywood architecture. Using a generalized LC shape equation here adapted to cholesteric free surfaces, we derive a model in terms of three capillary pressures whose solution is the ubiquitous periodic relief of plywood surfaces. The period and depth of the surface structure are shown to be dependent on the plywood's helical pitch. The ratio of amplitude to period of the surface undulation scales linearly with the anisotropic surface tension. These new findings can be used to characterize plant-based plywoods as well as to inspire the design of optical devices based on chirality-driven nano-wrinkling.
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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 | 0.001 | 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 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".