A record-long polymer DNA negative

A fragment of a single strand of DNA, built of the nucleobases cytosine and guanine, can be imprinted in a polymer—this has been shown by chemists from Warsaw, Denton and Milan. The resulting artificial negative, with a ...

A recording device for cell history

ETH researchers are using the CRISPR-Cas system to develop a novel recording mechanism: The snippets of DNA it produces can provide information about certain cellular processes. In the future, this cellular memory might even ...

Simulations show new phenomenon with nanopore DNA sequencing

Any truck operator knows that hydraulics do the heavy lifting. Water does the work because it's nearly incompressible at normal scales. But things behave strangely in nanotechnology, the control of materials at the scale ...

Lunar library to include photos, books stored in DNA

People who have submitted photos to the #MemoriesInDNA project have selected images of family members, favorite places and tasty food that will be preserved for years in the form of synthetic DNA. Now this collection—which ...

Detangling DNA replication

DNA is a lengthy molecule—approximately 1,000-fold longer than the cell in which it resides—so it can't be jammed in haphazardly. Rather, it must be neatly organized so proteins involved in critical processes can access ...

Math shows how DNA twists, turns and unzips

If you've ever seen a picture of a DNA molecule, you probably saw it in its famous B-form: two strands coiling around each other in a right-handed fashion to form a double helix. But did you know that DNA can change its shape?

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