Microscale hydrogel-based computer-triggered polymorphic microrobots for operations in the vascular network
Bibliographic record
Abstract
A new type of microrobots for medical interventions in the vascular network is presented. In its simplest form, each microscale robots consists of magnetic nanoparticles (MNP) embedded in a thermo-sensitive hydrogel, also known as PNIPA. The nanoparticles are not only used for propulsion/steering, and MRI-based tracking inside the body due to local magnetic field inhomogeneity, but also for triggering a change of volume of the microrobots. The latter is possible since the MNP can introduce heat in the hydrogel-based microrobots when placed in an AC magnetic field. In this paper, spherical PNIPA-MNP were synthesized and propelled by the magnetic gradient field inside a clinical MRI scanner before being submitted when at a targeted location to a special apparatus capable of generating an AC magnetic field of 4 kA.m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> at 160 kHz. Temperature elevations and change in the overall volume of the microrobots were recorded.
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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".