A single molecule stimuli-robust fluorescent hydrogel based on excited state intramolecular proton transfer
Bibliographic record
Abstract
'-bis(salicylidene)-(2-(3',4'-diaminophenyl)benzothiazole) (BTS) into a polyethylene oxide-polypropylene oxide-polyethylene oxide (PEO-PPO-PEO, F127) triblock copolymer hydrogel. BTS undergoes excited state intramolecular proton transfer (ESIPT), which leads to a broad emission spectrum where both the normal (N*) and tautomeric (T*) forms of the excited states of BTS coexist. Aggregation of BTS was prevented when it was embedded in F127 hydrogels. The BTS emission spectra are sensitive to the BTS loading in the gel, with white light being observed for some concentrations of lumiphore. In contrast, the BTS emission spectra are insensitive to pH. These experiments showed the successful application of a supramolecular strategy where the lumiphore is incorporated into a specific environment in the micelles forming the gel. The insensitivity of the emission colour to pH showed that emissive materials using a single ESIPT molecule can be achieved without the pH sensitivity normally associated with this process. These results highlight the importance of designing fluorophores with properties that enable them to be located in specific environments of supramolecular systems.
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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 | 0.000 | 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) | 0.002 | 0.002 |
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; both teacher heads agree on what is shown here.
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".