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Orientational control of anisotropic plasmonic nanoparticles is an attractive proposition to generate dynamic plasmonic responses. Particularly, the use of light as a stimulus to modulate the orientation is extremely useful owing to its spatiotemporal operative ability. This work showcases a light-mediated approach to tune the orientational features of gold nanorods in DNA-engineered hydrogel materials. The strategy relies on the use of visible-light-induced photothermal effects to cause deformation of the hydrogel matrix, resulting in temperature-controlled polarization-dependent optical responses whose anisotropy features are highly adaptive to the nature of DNA crosslinks. The visible-light-mediated approach showcased here can open novel avenues to create dynamic light-responsive materials with reconfigurable plasmonic responses.
Original languageEnglish
Article number2201249
Number of pages10
JournalAdvanced Functional Materials
Issue number37
Early online date24 May 2022
Publication statusPublished - 12 Sept 2022
MoE publication typeA1 Journal article-refereed


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