Shape-Changing DNA-Linked Nanoparticle Films Dictated by Lateral and Vertical Patterns
- 주제(키워드) DNA-directed self-assembly , gold nanoparticles , patterning , plasmonic materials , stimuli–responsive materials
- 등재 SCIE, SCOPUS
- 발행기관 John Wiley and Sons Inc
- 발행년도 2022
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000191205
- 본문언어 영어
- Published As https://doi.org/10.1002/adma.202109091
- PubMed https://pubmed.ncbi.nlm.nih.gov/35119767
초록/요약
The self-assembly of nanoscale building blocks into complex nanostructures with controlled structural anisotropy can open up new opportunities for realizing active nanomaterials exhibiting spatiotemporal structural transformations. Here, a combination of bottom-up DNA-directed self-assembly and top-down photothermal patterning is adopted to fabricate free-standing nanoparticle films with vertical and lateral heterogeneity. This approach involves the construction of multicomponent plasmonic nanoparticle films by DNA-directed layer-by-layer (LbL) self-assembly, followed by on-demand lateral patterning by the direct photothermal writing method. The distinct plasmonic properties of nanospheres and nanorods constituting the multidomain films enable photopatterning in a selective domain with precisely controlled vertical depths. The photopatterned films exhibit complex morphing actions instructed by the lateral and vertical patterns inscribed in the film as well as the information carried in DNA. © 2022 Wiley-VCH GmbH.
more