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    "headline": "The Printer Corrected the Light Before It Met the Cells",
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    "dek": "Inverse rendering compensated for scattering in dense bioresins and preserved small channel geometry.",
    "summary": "Inverse rendering compensated for scattering in dense bioresins and preserved small channel geometry.",
    "body_text": "A tomographic volumetric bioprinting system used physically based inverse rendering to optimize projected light through cell-laden hydrogels. The authors report printing 500-micrometer vascular channels at 20 million cells per milliliter and, with refractive-index matching, operating at 41 million cells per milliliter. These are preprint demonstrations of print fidelity in bioresin, not evidence of functional tissue or clinical readiness.",
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    "tags": [
      "bioprinting",
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      "title": "arXiv preprint 2608.05347",
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