Electrophoresis of Composite Molecular Objects. 1. Relation between Friction, Charge, and Ionic Strength in Free Solution
Bibliographic record
Abstract
We present a study of the mobility of streptavidin end-labeled ssDNA fragments in free solution capillary electrophoresis. Our data show that the contribution of the uncharged streptavidin label to the net electrophoretic mobility of the complex depends on the buffer ionic strength because this frictional contribution is actually related to the persistence length of the ssDNA fragment. Therefore, the ionic strength of the buffer affects both the free-solution mobility of naked ssDNA and the effective slowing down (or “drag”) due to the streptavidin label. We further show that our experimental results can be interpreted using recently published polyelectrolyte electrophoresis theories. Our results thus confirm that the so-called free-draining picture of local ssDNA electrophoretic friction and charge is not valid.
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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) | 0.000 | 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".