Synthesis, Radiolabeling, and Bio-imaging of High-Generation Polyester Dendrimers
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
A series of aliphatic polyester dendrons, generations 1 through 8, were prepared with a core p-toluenesulfonyl ethyl (TSe) ester as an easily removable protecting group that can be efficiently replaced with a variety of nucleophiles. Using amidation chemistry, a tridentate bis(pyridyl)amine ligand which is known to form stable complexes with both Tc(I) and Re(I) was introduced at the dendrimer core. Metalation of the core ligand with (99m)Tc was accomplished for generations 5 through 7, and resulted in regioselective radiolabeling of the dendrimers. The distribution of the radiolabeled dendrimers was evaluated in healthy adult Copenhagen rats using dynamic small-animal single photon emission computed tomography (SPECT). The labeled dendrimers were cleanly and rapidly eliminated from the bloodstream via the kidneys with negligible nonspecific binding to organs or tissues being observed. These data were corroborated by a quantitative biodistribution study on the generation 7 dendrimer following necropsy. The quantitative biodistribution results were in excellent agreement with the data obtained from the dynamic SPECT images.
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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