5 Key Takeaways

• 1

  The deep-ultraviolet ptychographic pocket-scope (DART) visualizes biological samples without chemical stains using DUV light.

• 2

  DART detects nucleic acids and proteins in unstained specimens, providing intrinsic molecular contrast without altering samples.

• 3

  The system operates at 266 nm and 280 nm wavelengths, highlighting specific biomolecules for enhanced imaging.

• 4

  DART achieves high-resolution imaging of large samples with submicron resolution and millimeter-scale depth of field.

• 5

  The system enables virtual staining by converting quantitative molecular measurements into images resembling traditional staining.