Dynamic plasmonic system that responds to thermal and aptamer-target regulations

• Verfasst von: Zhou, Chao [VerfasserIn]
• Verfasst von: Xin, Ling [VerfasserIn]
• Verfasst von: Duan, Xiaoyang [VerfasserIn]
• Verfasst von: Urban, Maximilian J. [VerfasserIn]
• Verfasst von: Liu, Na [VerfasserIn]
• Titel: Dynamic plasmonic system that responds to thermal and aptamer-target regulations
• Verf.angabe: Chao Zhou, Ling Xin, Xiaoyang Duan, Maximilian J. Urban, and Na Liu
• E-Jahr: 2018
• Jahr: November 1, 2018
• Umfang: 5 S.
• Fussnoten: Gesehen am 01.04.2020
• Titel Quelle: Enthalten in: Nano letters
• Ort Quelle: Washington, DC : ACS Publ., 2001
• Jahr Quelle: 2018
• Band/Heft Quelle: 18(2018), 11, Seite 7395-7399
• ISSN Quelle: 1530-6992
• DOI: doi:10.1021/acs.nanolett.8b03807
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1693737256

Abstract

The DNA origami technique has empowered a new paradigm in plasmonics for manipulating light and matter at the nanoscale. This interdisciplinary field has witnessed vigorous growth, outlining a viable route to construct advanced plasmonic architectures with tailored optical properties. However, so far plasmonic systems templated by DNA origami have been restricted to respond to only single stimuli. Despite broad interest and scientific importance, thermal and aptamer-target regulations have not yet been widely utilized to reconfigure three-dimensional plasmonic architectures. In this Letter, we demonstrate a chiral plasmonic nanosystem integrated with split aptamers, which can respond to both thermal and aptamer-target regulations. We show that our dual-responsive system can be noninvasively tuned in a wide range of temperatures, readily correlating thermal control with optical signal changes. Meanwhile, our system can detect specific targets including adenosine triphosphate and cocaine molecules, which further enhance the optical response modulations and in turn influence the thermal tunability.