Single-Step Fabrication of V-Shaped Polymeric Microwells to Enhance Cancer Spheroid Formation
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
tumors. Recent advancements in 3D cell cultures, particularly cancer spheroids, have highlighted their superior physiological relevance. However, existing methods for spheroid generation often require complex, multistep fabrication processes that limit scalability and reproducibility. In this study, we present a novel single-step photolithographic technique to fabricate high-aspect-ratio V-slanted hydrogel microwells. By employing polyethylene glycol (PEG)-based hydrogels, we create biocompatible, extracellular matrix (ECM)-like scaffolds that enhance gas and nutrient exchange while promoting uniform spheroid formation. The hydrogel microwells allow precise control of spheroid size, achieving a physiologically relevant diameter of 425 μm within 12-24 h, and the resulting spheroids exhibiting high viability over 3 weeks. Moreover, the method facilitates the creation of scalable multiwell arrays for high-throughput applications, making it suitable for both small-scale and large-scale experimental needs. This platform addresses the limitations of traditional microwell fabrication, offering a robust, efficient, and reproducible system for generating physiologically relevant 3D models with valuable applications in cancer research, drug testing, and tissue engineering.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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