DNA Test Sample

DNA Test Sample

Long-life, stable and non-destructing object for AFM.

DNA01 is Plasmid pGem7zf+ (Promega), which is linearized with the Smal endonuclease. Linear DNA molecules (3000 b.p.) are deposited on freshly cleaved mica. Molecules are uniformly distributed over the surface with molecular density of 0.5 – 7 molec./m². The typical DNA length is 1009 nm. Recommended humidity for obtaining a good image is 3-5.


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2 in stock (can be backordered)

Order Code DNA01
Price $165.00


  • Getting started working with AFM
  • Example of how to prepare your own DNA samples
  • Estimation of probe tip curvature radius
  • Humidity testing
  • Z-resolution testing

Histogram indicating distribution of DNA length