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作者机构:School of Nano-Tech and Nano-BionicsUniversity of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Nano-Bio InterfaceSuzhou Key Laboratory of Functional Molecular Imaging TechnologyDivision of Nanobiomedicine and i-labSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China Nano Science and Technology InstituteUniversity of Science and Technology of ChinaSuzhou 215123China Jiangsu Key Laboratory of Thin FilmsSchool of Physical Science and TechnologySoochow UniversitySuzhou 215006China College of Materials Sciences and Opto-Electronic TechnologyUniversity of Chinese Academy of SciencesBeijing 100049China
出 版 物:《Nano Research》 (纳米研究(英文版))
年 卷 期:2022年第15卷第10期
页 面:9447-9453页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学]
基 金:supported by the National Natural Science Foundation of China(Nos.21977112,and 21934007) the Natural Science Foundation of Jiangsu Province(No.BK20190227) the Strategic Priority Research Program of Chinese Academy of Sciences(No.XDB36000000) the Science and Technology Project of Suzhou(No.SZS201904)
主 题:chiral plasmonics DNA origami plasmonic circular dichroism gold nanoparticle
摘 要:Significant chiroptical responses could be generated by chiral coupling of achiral plasmonic nanoparticles,or originated from intrinsically chiral plasmonic *** we create dimeric plasmonic metamolecules possessing both chiral coupling between nanoparticles and intrinsic chiroptical responses derived from nanoparticles *** plasmonic metamolecules are prepared by assembling helical plasmonic nanorods(HPNRs)with intrinsic chirality in chiral manners on DNA origami *** HPNRs with the same or opposite chirality,or one HPNR and one achiral gold nanorod,are coupled chirally into dimeric metamolecules with intriguing plasmonic circular dichroism(PCD).We found that both of the intrinsic chirality of constituent HPNRs and the chiral coupling contribute to the overall PCD while their weights are different in different metamolecules and vary in different wavelength range for a certain *** to conventional chiral plasmonic metamolecules from achiral nanoparticles,or discrete chiral nanoparticles,these metamolecules bring more dimensions for tailoring chiroptical responses and make it more flexible to design plasmonic nanodevices with custom PCD.