Editing Molecular assembler (section)

{{short description|Proposed nanotechnological device}}


A '''molecular assembler''', as defined by [[K. Eric Drexler]],{{cn|date=May 2025}}  is a "proposed device able to guide [[chemical reaction]]s by positioning reactive molecules with atomic precision". A molecular assembler is a [[molecular machine]].  Some biological molecules such as [[ribosome]]s fit this definition as [[biological machine]]s. This is because they receive instructions from [[mRNA|messenger RNA]] and then assemble specific sequences of [[amino acids]] to construct [[protein]] molecules. 

[[Image:Protein translation.gif|thumb|300px| A [[ribosome]] is a [[biological machine]] using [[protein domain dynamics]], only visible by [[neutron spin echo]] spectroscopy]]
{{Molecular_nanotechnology_subfields}}