@article{abe1e7bdbab04b73859b402bdd8ea34b,
title = "Reversible changes in the orientation of gold nanorod arrays on polymer brushes",
abstract = "Nanoparticles exhibit a number of unique properties such as localized surface plasmon resonance (LSPR). As this LSPR is sensitive to geometrical or spatial conditions, the arrangement of nanoparticles, in particular the active arrangement of plasmonic structures, is an important issue. In this study, gold nanorod (GNR) arrays were prepared by GNR attachment on anionic polymer (DNA) brushes via electrostatic interactions and their stimuli-responsive changes in orientation were investigated. As a result, the orientation of GNR arrays on DNA brushes reversibly changed by the modulation of electrostatic interactions between GNRs and polymers via changes in the solution pH. As these extensive GNR arrays are prepared via easy bottom-up processes, GNR surface properties are easily tuned by simple modification, and DNAs could be replaced with various synthetic polymers, we believe that this study will lead to the development of next-generation materials and devices with actively tunable structures.",
author = "Yu Sekizawa and Hideyuki Mitomo and Mizuki Nihei and Satoshi Nakamura and Yusuke Yonamine and Akinori Kuzuya and Takehiko Wada and Kuniharu Ijiro",
note = "Funding Information: H. M. is grateful for nancial aid from JSPS KAKENHI (Grant no. 18H01804 and 19H00845), the Noguchi Institute, and JGC-S scholarship foundation. K. I. acknowledges the support for this research from JSPS KAKENHI (Grant no. 19H05627). This work was performed under the Cooperative Research Program of the “Network Joint Research Center for Materials and Devices”. This work was supported in part by “Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials” from the Ministry of Education, Culture, Sports, Science and Technology of Japan (MEXT). A part of this work was conducted at Hokkaido University, supported by the “Nanotechnology Platform” Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. CD measurements were conducted by Hokkaido University, Global Facility Center (GFC), Pharma Science Open Unit (PSOU), funded by MEXT under the “Support Program for Implementation of New Equipment Sharing System”. Support by the “Photoexcitonix Project” in Hokkaido University is also acknowledged. Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",
year = "2020",
month = sep,
doi = "10.1039/d0na00315h",
language = "English",
volume = "2",
pages = "3798--3803",
journal = "Nanoscale Advances",
issn = "2516-0230",
publisher = "Royal Society of Chemistry",
number = "9",
}