A DNAzyme Feedback Amplification Strategy for Biosensing
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
We report a signal amplification strategy termed DNAzyme feedback amplification (DFA) that takes advantage of rolling-circle amplification (RCA) and an RNA-cleaving DNAzyme (RCD). DFA employs two specially programmed DNA complexes, one composed of a primer and a circular template containing the antisense sequence of an RCD, and the other composed of the same circular template and an RNA-containing substrate for the RCD. RCA is initiated at the first complex to produce RCD elements that go on to cleave the substrate in the second complex. This cleavage event triggers the production of more input complexes for RCA. This reaction circuit continues autonomously, resulting in exponential DNA amplification. We demonstrate the versatility of this approach for biosensing through the design of DFA systems capable of detecting a microRNA sequence and a bacterium, with sensitivity improvements of 3-6 orders of magnitude over conventional methods.
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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