Category: 7. Science

Chemicals

All chemicals were used without further purification after purchase: gold(III) chloride trihydrate (≥99.9% trace metals basis, HAuCl₄·3H₂O, Sigma-Aldrich), sodium borohydride (99%, NaBH₄, Sigma-Aldrich), sodium iodide (99.999%, NaI,…

Strain culture and DNA extraction

We used a collection of S. cerevisiae isolates that were previously sequenced using short-read sequencing¹⁹. For each isolate, we obtained single colonies from frozen stock on solid YPD (1% yeast extract, 2%…

• Researchers envision taking a patient’s own cells from a tumor biopsy and growing a personalized mini-colon to determine which drug works best for that individual patient.
• The model can be used to test patient-tailored drug…

New images from the James Webb telescope have captured previously unseen details of the gargantuan jets shooting out of the famous black hole M87* — the first-ever black hole to be directly imaged by the Event Horizon Telescope.

The new James…

Device fabrication

We fabricated our devices using procedures similar to those described in ref. ²². A free-standing silicon nitride (SiN) membrane was used as a substrate for our van der Waals assembly that involved four atomically flat…