{"record":{"author":{"account_ref":null,"orcid":null},"builds_on":[],"content_schema":"pubphys.content.topic/1","content_sha256":"b8f6a857a93dba4aca9af275edbf03c6608c33e1875ced671933279fba5dde5f","created":"2026-10-03T07:17:50Z","files":[],"origin":{"assisted_by":[],"kind":"seed"},"parents":[],"salt":"74f0c8a6075d9c85c669790cb97be25be53b025666f78210e1c2491c1eb3161c","schema":"pubphys.record/2","site":"pubphys.com","target":null,"type":"topic"},"content":{"external_id":"bio.cellular-sensing","field":"bio","n":"1","review_cite":"Gasper Tkacik, William Bialek, Information Processing in Living Systems, Annual Review of Condensed Matter Physics, 2016","review_link":"https://doi.org/10.1146/annurev-conmatphys-031214-014803","review_verified":"true","summary":"Cells read their surroundings by counting molecules that bump into receptors on their surface, which is noisy because molecules arrive at random. Physics sets how precise such a measurement can be, and the open questions are how close real cells come to the limit and what they do with the information.","title":"Physical limits of cellular sensing and information","topic_ref":null,"why":"These limits decide how bacteria find food, how embryos lay out body parts, and how immune cells decide to respond."},"attested":{"attestation":{"batch":null,"client_id":null,"id_token_sha256":null,"kind":"platform"},"record_hash":"162aec31a0a35d10d7205c0113216cb9f810fe4d327304e36437346a256186d4","schema":"pubphys.attested/1"},"envelope":{"attested_hash":"6da249da2639347ab06aa8a648e6a52e324a75030eb12417762b7958d42983d4","platform_signature":{"key_id":"c6afc19b31429869751f06879c75cd64ea92654423d15b44be775bf1310a60da","sig":"xy9PECD0mYXCqLibBOqvF2AQrlw1AvOh_dxMse6Z6NKH8nI0qLr5TMvS4NAJZvKBNZ6OH2bdc_nXqkVk3DiOCA"},"schema":"pubphys.envelope/1"},"record_hash":"162aec31a0a35d10d7205c0113216cb9f810fe4d327304e36437346a256186d4","leaf_index":83}