Exploiting Activated Alkyne Chemistry for the Synthesis of Tailored Amphiphilic Janus Dendrimers with Aggregation‐Induced Emission and Their Assemblies for Cell Imaging
Bibliographic record
Abstract
Amphiphilic Janus dendrimers (AJDs) are a promising class of macromolecules capable of self-assembling into well-defined nanostructures. In this study, AJDs were synthesized employing, for the first time, the activated alkyne-hydroxyl "click" chemistry approach, enabling the construction of dendritic architectures under mild conditions. The AJDs were functionalized with a π-extended tetraphenylethylene (TPE) derivative, imparting aggregation-induced emission (AIE) property. These AJDs self-assembled into fluorescent nanostructures, including micelles and dendrimersomes, with tunable dimensions. The AIE-active assemblies demonstrated strong photoluminescence upon formation and were characterized by narrow size distributions. Cytotoxicity and cellular uptake studies using Chinese Hamster Ovary K1 (CHO-K1) cells revealed excellent biocompatibility and efficient cellular internalization, confirming their potential for live-cell imaging. Importantly, the extended π-conjugation of the TPE derivative facilitated excitation at longer wavelengths, compatible with conventional confocal microscopy. This work showcases the versatility of activated alkyne-hydroxyl "click" chemistry in dendrimer synthesis and highlights the potential of these AJD-based nanostructures in nanomedicine, particularly for imaging and diagnostic applications.
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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 | 0.001 | 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 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".