Hydrogen-Bond-Mediated Biomolecular Trapping: Reversible Catch-and-Release Process of Common Biomolecules on a Glycine-Functionalized Si(111)7×7 Surface
Bibliographic record
Abstract
Adsorption and desorption of several small prototypical biomolecules: glycine, glycylglycine, alanine, adenine, and thymine on a glycine-functionalized Si(111)7×7 surface have been investigated by X-ray photoelectron spectroscopy. Glycine has been found to adsorb on Si(111)7×7 through N−H dissociation, which makes the unreacted carboxyl group of the interfacial glycine adlayer an effective means to capture these biomolecules (except for thymine) through [O−H···N] hydrogen bonding. Furthermore, the captured molecules can be released simply by annealing to 120 °C for 10 s. This hydrogen-bond-mediated catch-and-release mechanism is supported by the appearance and disappearance of the characteristic hydrogen-bond N 1s features at 401.4 eV and is found to be reversible. The glycine-functionalized Si(111) surface therefore provides a flexible platform for potential applications as selective molecular traps, chemical sensors, and biomolecular electronic components.
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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 | 0.001 |
| 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".