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Nanoparticles: Modulation of Interparticle Distance in Discrete Gold Nanoparticle Dimers and Trimers by DNA Single‐Base Pairing (Small 26/2015)
Author(s) -
Akiyama Yoshitsugu,
Shikagawa Hiroto,
Kanayama Naoki,
Takarada Tohru,
Maeda Mizuo
Publication year - 2015
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201570148
Subject(s) - dna , nanoparticle , base pair , colloidal gold , pairing , materials science , nanotechnology , particle (ecology) , crystallography , biophysics , chemistry , physics , biology , biochemistry , condensed matter physics , ecology , superconductivity
The interparticle distance in gold nanoparticle trimers is modulated by T. Takarada and co‐workers on page 3153. Each particle has one long DNA (green) and several short DNAs (orange). The long DNA serves to align the particles on a template DNA (purple). When the complementary DNA (blue) is hybridized to the short DNA, the interparticle distance is spontaneously decreased in the presence of salt (right front). However, no shrinkage occurs with the terminal‐mismatched DNA (yellow) under the same conditions (left front).