Luminescent Copper Nanoclusters as a Specific Cell-Imaging Probe and a Selective Metal Ion Sensor
Why this work is in the frame
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Bibliographic record
Abstract
Copper nanoclusters (CuNCs) exhibit a high tendency to undergo oxidation particularly at the subnanometer size regime. In the light of overcoming this bottleneck, we have been successful in developing tripeptide (glutathione, GSH) templated CuNCs which show high biocompatibility and stability, in spite of being ultrafine in size. These blue-emitting CuNCs possess very promising optical features such as significant quantum yield (QY) and excellent photostability. Our cell-imaging studies reveal that the CuNCs localize primarily in nuclear membranes of the different cancerous (Hela, MDAMB-231, and A549) cells, and the cell viability assay conclusively established their nontoxic nature. Apart from their biological significances, these CuNCs also illustrate their ability to serve as a metal ion sensor, selectively detecting Fe 3+ ions in solution at the nanomolar concentration regime. This unique luminescent property of the NCs will enable them to serve as label-free and versatile probes having several biological and analytical applications.
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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 it