{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,4]],"date-time":"2026-10-04T23:47:16Z","timestamp":1791157636177,"version":"4.1.0"},"reference-count":48,"publisher":"AIP Publishing","issue":"9","content-domain":{"domain":["pubs.aip.org"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2009,9,7]]},"abstract":"<jats:p>We have characterized the polymer physics of single-stranded DNA (ssDNA) using atomic force microscopy. The persistence length \u2113p of circular ssDNA adsorbed on a modified graphite surface was determined independently of secondary structure. At a very low ionic strength we obtained \u2113p=9.1\u2002nm from the bond correlation function. Increasing the salt concentration lead to a decrease in \u2113p; at 1 mM NaCl we found \u2113p=6.7\u2002nm, while at 10 mM NaCl a value \u2113p=4.6\u2002nm was obtained. The persistence length was also extracted from the root-mean-square end-to-end distance and the end-to-end distance distribution function. Finally, we have investigated the scaling behavior using the two latter quantities, and found that on long length scales ssDNA behaves as a two-dimensional self-avoiding walk.<\/jats:p>","DOI":"10.1063\/1.3216111","type":"journal-article","created":{"date-parts":[[2009,9,2]],"date-time":"2009-09-02T22:34:54Z","timestamp":1251930894000},"update-policy":"https:\/\/doi.org\/10.1063\/aip-crossmark-policy-page","source":"Crossref","is-referenced-by-count":65,"title":["Persistence length and scaling properties of single-stranded DNA adsorbed on modified graphite"],"prefix":"10.1063","volume":"131","author":[{"given":"Kristian","family":"Rechendorff","sequence":"first","affiliation":[{"name":"Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL) Laboratoire de Physique de la Mati\u00e8re Vivante, Institute of Physics of Biological Systems (IPSB), , CH-1015 Lausanne, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Guillaume","family":"Witz","sequence":"additional","affiliation":[{"name":"Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL) Laboratoire de Physique de la Mati\u00e8re Vivante, Institute of Physics of Biological Systems (IPSB), , CH-1015 Lausanne, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jozef","family":"Adamcik","sequence":"additional","affiliation":[{"name":"Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL) Laboratoire de Physique de la Mati\u00e8re Vivante, Institute of Physics of Biological Systems (IPSB), , CH-1015 Lausanne, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giovanni","family":"Dietler","sequence":"additional","affiliation":[{"name":"Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne (EPFL) Laboratoire de Physique de la Mati\u00e8re Vivante, Institute of Physics of Biological Systems (IPSB), , CH-1015 Lausanne, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"317","published-online":{"date-parts":[[2009,9,2]]},"reference":[{"key":"2023080405504663000_c1","doi-asserted-by":"publisher","first-page":"263","DOI":"10.1038\/329263a0","volume":"329","year":"1987","journal-title":"Nature (London)"},{"key":"2023080405504663000_c2","doi-asserted-by":"publisher","first-page":"2178","DOI":"10.1103\/PhysRevLett.86.2178","volume":"86","year":"2001","journal-title":"Phys. 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