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Zhejiang Lab

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  1. DeepDelivery mines the human proteome for mRNA delivery scaffolds: 512 candidates, and 12 of 15 tested form particles that deliver

    DeepDelivery treats the human proteome as a candidate pool for mRNA delivery scaffolds: deep learning models trained on viral capsid proteins, filtered by a dual-model screen, nominated 512 candidates from 109,375 human sequences. Of 15 candidates tested experimentally, 12 formed mRNA-encapsulating particles and mediated functional delivery; RTL8B reached 73.2% transduction in HEK293T reporter cells, above the reference proteins Arc (56.5%), PEG10 (53.1%) and PNMA2 (67.4%). The results support human proteins as a source of modularly engineerable delivery scaffolds, while immunogenicity and in vivo behavior remain untested.

  2. Permeability stops being one bulk number: cell-by-cell maps show spin-wave interference carving out local negative loss

    High-frequency permeability, long treated as a single bulk parameter, is now computed as a field that varies with position and frequency. The approach discretizes a sample into micromagnetic cells, extracts a permeability spectrum per cell through time-to-frequency conversion, and suppresses Fourier error with a verified pulse window. A planar square model shows localized negative imaginary permeability at 14.10 GHz, where magnetization leads the field by 9π/10; on nanoscale iron spheres, machine-learning predictions of defect-to-spectrum trends agree with broadband measurements on four etched samples.

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