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The photoirradiation method is applied to reduce Ag<jats:sup>I<\/jats:sup> on the plasmid. The nanoparticles are obtained by varying the concentration of the Ag<jats:sup>I<\/jats:sup> ion solution and the exposure time of the plasmid\u2013Ag<jats:sup>I<\/jats:sup> complex under UV light at 254 nm and room temperature. It is found that the plasmid serves not only as a template but also as a reductant to drive the silver nucleation and deposition. The resulting nanoparticles have a face\u2010centered cubic (fcc) crystal structure and 20\u201330 nm average diameter. The detailed mechanism is discussed, and other metals or alloys could also be synthesized with this method.<\/jats:p>","DOI":"10.1002\/smll.201101423","type":"journal-article","created":{"date-parts":[[2011,11,21]],"date-time":"2011-11-21T09:17:57Z","timestamp":1321867077000},"page":"310-316","source":"Crossref","is-referenced-by-count":39,"title":["Photoinduced Silver Nanoparticles\/Nanorings on Plasmid DNA Scaffolds"],"prefix":"10.1002","volume":"8","author":[{"given":"Jianhua","family":"Liu","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoliang","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mei","family":"Yu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Songmei","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jindan","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,11,21]]},"reference":[{"key":"e_1_2_7_1_2","doi-asserted-by":"publisher","DOI":"10.1021\/ja029267j"},{"key":"e_1_2_7_2_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp0719715"},{"key":"e_1_2_7_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2009.05.067"},{"key":"e_1_2_7_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200351231"},{"key":"e_1_2_7_5_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.1555896"},{"key":"e_1_2_7_6_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp072335"},{"key":"e_1_2_7_7_2","doi-asserted-by":"publisher","DOI":"10.1039\/b605536m"},{"key":"e_1_2_7_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.pmatsci.2009.02.001"},{"key":"e_1_2_7_9_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.75.2436"},{"key":"e_1_2_7_10_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1521-4095(200004)12:7<507::AID-ADMA507>3.0.CO;2-G"},{"key":"e_1_2_7_11_2","doi-asserted-by":"publisher","DOI":"10.1038\/nmat853"},{"key":"e_1_2_7_12_2","first-page":"519","volume":"6","author":"Seeman N. 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