Role of Heterogeneous Enzyme Activity in the Formation of Calcium Phosphate Nanomaterials
Bibliographic record
Abstract
The enzymatic formation of calcium phosphate (CaP) in bone is a prime example of how living organisms utilize enzymes to precisely regulate biomineral nucleation and growth, serving as inspiration for the design of biomimetic nanomaterials. In this study, we investigated the formation mechanisms of enzymatic CaP in buffered solutions using single molecule enzymology and cryo-transmission electron microscopy to probe the relationship between tissue nonspecific alkaline phosphatase (TNALP) activity and CaP formation pathways. We characterized the dynamics of heterogeneous TNALP activity, which consists of singly and doubly active enzyme molecules during enzymatic CaP formation and identified two distinct formation pathways that produce amorphous calcium phosphate nanoparticles and octacalcium phosphate nanoparticles. These results show the complex and potentially powerful relationship between heterogeneous enzyme activity and CaP formation mechanisms, offering a new level of control in space and time for the design of biomimetic nanomaterials.
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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 | 0.001 |
| 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 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".