{"entity": "researcher", "timestamp": "2026-04-13T04:39:07.317Z", "family": "Turberfield", "given": "Andrew J", "initials": "AJ", "orcid": "0000-0002-3876-0190", "affiliations": ["Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK."], "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/researcher/32d8e6fbeba740aaa6987d7e4bb4a77a.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/researcher/32d8e6fbeba740aaa6987d7e4bb4a77a"}}, "publications": [{"entity": "publication", "iuid": "c5bfeb3b98b54978b9c57cde333cae24", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/c5bfeb3b98b54978b9c57cde333cae24.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/c5bfeb3b98b54978b9c57cde333cae24"}}, "title": "A DNA molecular printer capable of programmable positioning and patterning in two dimensions.", "authors": [{"family": "Benson", "given": "Erik", "initials": "E", "orcid": "0000-0003-3374-501X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/148265e9c3bb4d95b5f9b72721fcbc6f.json"}}, {"family": "Marzo", "given": "Rafael Carrascosa", "initials": "RC", "orcid": "0000-0001-7238-454X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6a31f8838eba4d7db0b1c6efe8308378.json"}}, {"family": "Bath", "given": "Jonathan", "initials": "J", "orcid": "0000-0002-7144-662X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/15602666ea7e4c78b31f2afe506592cf.json"}}, {"family": "Turberfield", "given": "Andrew J", "initials": "AJ", "orcid": "0000-0002-3876-0190", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/32d8e6fbeba740aaa6987d7e4bb4a77a.json"}}], "type": "journal article", "published": "2022-04-20", "journal": {"title": "Sci Robot", "issn": "2470-9476", "issn-l": null, "volume": "7", "issue": "65", "pages": "eabn5459"}, "abstract": "Nanoscale manipulation and patterning usually require costly and sensitive top-down techniques such as those used in scanning probe microscopies or in semiconductor lithography. DNA nanotechnology enables exploration of bottom-up fabrication and has previously been used to design self-assembling components capable of linear and rotary motion. In this work, we combine three independently controllable DNA origami linear actuators to create a nanoscale robotic printer. The two-axis positioning mechanism comprises a moveable gantry, running on parallel rails, threading a mobile sleeve. We show that the device is capable of reversibly positioning a write head over a canvas through the addition of signaling oligonucleotides. We demonstrate \"write\" functionality by using the head to catalyze a local DNA strand-exchange reaction, selectively modifying pixels on a canvas. This work demonstrates the power of DNA nanotechnology for creating nanoscale robotic components and could find application in surface manufacturing, biophysical studies, and templated chemistry.", "doi": "10.1126/scirobotics.abn5459", "pmid": "35442702", "labels": {"Erik Benson": null, "SciLifeLab Fellow": null}, "xrefs": [], "notes": [], "created": "2023-05-23T09:20:37.303Z", "modified": "2023-05-23T12:31:50.990Z"}, {"entity": "publication", "iuid": "8565e41cad2f4cfd8b2ea20b7de0919b", "links": {"self": {"href": "https://publications-affiliated.scilifelab.se/publication/8565e41cad2f4cfd8b2ea20b7de0919b.json"}, "display": {"href": "https://publications-affiliated.scilifelab.se/publication/8565e41cad2f4cfd8b2ea20b7de0919b"}}, "title": "Strategies for Constructing and Operating DNA Origami Linear Actuators.", "authors": [{"family": "Benson", "given": "Erik", "initials": "E"}, {"family": "Carrascosa Marzo", "given": "Rafael", "initials": "R", "orcid": "0000-0001-7238-454X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/6a31f8838eba4d7db0b1c6efe8308378.json"}}, {"family": "Bath", "given": "Jonathan", "initials": "J", "orcid": "0000-0002-7144-662X", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/15602666ea7e4c78b31f2afe506592cf.json"}}, {"family": "Turberfield", "given": "Andrew J", "initials": "AJ", "orcid": "0000-0002-3876-0190", "researcher": {"href": "https://publications-affiliated.scilifelab.se/researcher/32d8e6fbeba740aaa6987d7e4bb4a77a.json"}}], "type": "journal article", "published": "2021-05-00", "journal": {"title": "Small", "issn": "1613-6829", "issn-l": "1613-6810", "volume": "17", "issue": "20", "pages": "e2007704"}, "abstract": "Linear actuators are ubiquitous components at all scales of engineering. DNA nanotechnology offers a unique opportunity for bottom-up assembly at the molecular scale, providing nanoscale precision with multiple methods for constructing and operating devices. In this paper, DNA origami linear actuators with up to 200 nm travel, based on a rail threading a topologically locked slider, are demonstrated. Two strategies, one- and two-pot assembly, are demonstrated whereby the two components are folded from one or two DNA scaffold strands, respectively. In order to control the position of the slider on the rail, the rail and the inside of the slider are decorated with single-stranded oligonucleotides with distinct sequences. Two positioning strategies, based on diffusion and capture of signaling strands, are used to link the slider reversibly to determined positions on the rail with high yield and precision. These machine components provide a basis for applications in molecular machinery and nanoscale manufacture including programmed chemical synthesis.", "doi": "10.1002/smll.202007704", "pmid": "33942502", "labels": {"Erik Benson": null, "SciLifeLab Fellow": null}, "xrefs": [], "notes": [], "created": "2023-05-23T09:20:01.420Z", "modified": "2023-05-23T12:32:14.802Z"}]}