Luminescence investigation of endothelial cells using metallic and semiconductor nanocrystals
Bibliographic record
Abstract
Our aim is to use nanocrystals (NC) to study endothelial cell biology, in particular, the cell surface receptor Tie2. Tie2 is highly expressed in endothelial cells and is critical for angiogenesis and vascular maintenance. Conjugating NCs to the Tie2 ligands, the angiopoietins, and tracking their characteristic luminescence lines will allow us to study the regulation of Tie2 <i>in vitro</i> and <i>in vivo</i>. To study NC behavior in a relevant biological system, endothelial cells were grown and cultured <i>in vitro</i>. Two different types of NC were made and tested: two-color core-shell CdSe/ZnS and more complicated nanostructures containing also Au clusters. Measurements were performed in specially prepared media with different pH values, as well as in the cell growth medium. The positions of NC-related luminescence lines were not influenced by the kind of media which makes them suitable for biolabeling the cell surface receptor Tie2. At the same time, the relative magnitude of the NC peaks depends on the pH of the medium and can therefore be used for characterization of the latter. Confocal microscopic images show that NCs with different ligands demonstrate different distributions inside living cells.
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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 | 0.001 | 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 | 0.001 |
| 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".