Detection of trichomonal vaginalis through lensless optofluidic microscopy
Bibliographic record
Abstract
Trichomoniasis is one of the most common non-viral sexually transmitted infection caused by a parasite called Trichomonas vaginalis. Currently, there is no timely, cost-efficient diagnostic test exist for Trichomoniasis. We present a lensless optofluidic imaging technique for label-free point-of-care detection of motile parasites in bodily fluids. With this setup we are able to achieve a FOV of ~2 mm2 at a frame rate of 30 fps and can see ~200 μl of sample in one image. Trichomonas vaginalis is identifiable through simple morphological features. Contrary to common practice of minimizing the distance between the sample and the sensor to maximize the resolution, we demonstrated that a greater distance is more advantageous by using the parasites natural ability to focus light as a contrast mechanism. This technique uses a low-cost high frame rate CMOS detector, which enables high throughput operation with requires minimal sample preparation, making it a promising solution to the rapid diagnosis of Trichomoniasis.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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".