Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain
the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in
Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles
and JavaScript.
Intracellular biopsy. (a) Cell membrane is penetrated, and cytoplasmic material is extracted via electrowetting. Adapted with permission from Ref. 170. (b) Extraction of a single chromatin from within a cell nucleus. Reproduced with permission from Ref. 171.