Micro-Nano Hierarchical Structures in Biocompatible Thermoplastics and its Application for Fabrication of Polymeric Membranes with Regular and Straight Open Through Holes
Bibliographic record
Abstract
We fabricate Micro-Nano Hierarchical (MNH) structures comprising arrays of nanopillars superimposed on micropillars over large areas. Both circular and oval shape nanopillars were successfully fabricated on biocompatible thermoplastic materials including polymethyl methacrylate (PMMA), polylactic acid (PLA) and cyclo olefin polymers (ZF14-188) by using hot-embossing techniques with intermediate fluorinated polymer molds replicated from Si master molds. The as-fabricated polymeric substrates with MNH structures shows a static contact angle <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\geq 140^{\circ}$</tex>. Superhydrophobic surfaces with a static contact angle as high as 162° were achieved on ZF14-188 substrates patterned with MNH structures even without post-fluorocarbon coating. The as-fabricated thermoplastic substrates with MNH structures were also used as very effective templates to create open through hole polymeric membranes with micro-nano hierarchical structures including an 840 nm thick membrane featuring an array of 250 nm diameter nanoholes suspended within 13.5 <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mu\mathrm{m}$</tex> or 18.2 <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\mu\mathrm{m}$</tex> diameter microholes.
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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".