Sperm cell empowerment: X-ray-guided magnetic fields for enhanced actuation and localization of cytocompatible biohybrid microrobots
Bibliographic record
Abstract
Magnetic microrobots have the potential to revolutionize medicine by navigating pathways to deliver precision-targeted therapy. However, a significant challenge arises. There commonly is a trade-off between magnetic responsiveness, detectability using medical imaging systems and cytotoxicity from increased amounts of magnetic content. Addressing this, we study biohybrid microrobots comprising clusters of iron oxide nanoparticle-coated sperm cells. These sperm-templated microrobots offer benefits over microrobots driven by live sperm, such as longer shelf-life and operation time, full directional and speed control and easy fabrication. To demonstrate their potential for use in clinical settings, we developed an X-ray-guided robotic platform investigating the magnetic response and detectability of these biohybrid clusters across varying nanoparticle concentrations, notably demonstrating simultaneous actuation and localization of sperm for the first time. These improvements advance the research closer to unleashing the potential of biohybrid microrobots for medical applications within the reproductive tract.
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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".