View : 102 Download: 0

Domain-Selective Enzymatic Cross-linking and Etching for Shape-Morphing DNA-Linked Nanoparticle Films

Title
Domain-Selective Enzymatic Cross-linking and Etching for Shape-Morphing DNA-Linked Nanoparticle Films
Authors
ChoiJisuKimJongwookParkJin-YoungHyunJerome KarthamSo-Jung
Ewha Authors
박소정현가담
SCOPUS Author ID
박소정scopus; 현가담scopus
Issue Date
2024
Journal Title
Nano Letters
ISSN
1530-6984JCR Link
Citation
Nano Letters vol. 24, no. 8, pp. 2574 - 2580
Keywords
DNA LigationDNA-Directed Self-assemblyGold NanoparticleLayer-by-LayerStimuli-Responsive
Publisher
American Chemical Society
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
The highly programmable and responsive molecular recognition properties of DNA provide unparalleled opportunities for fabricating dynamic nanostructures capable of structural transformation in response to various external stimuli. However, they typically operate in tightly controlled environments because certain conditions (ionic strength, pH, temperature, etc.) must be met for DNA duplex formation. In this study, we adopted site-specific enzymatic ligation and DNA-based layer-by-layer thin film fabrication to build shape-morphing DNA-linked nanoparticle films operational in a broad range of environments. The ligated films remained intact in unusual conditions such as pure water and high temperature causing dissociation of DNA duplexes and showed predictable and reversible shape morphing in response to various environmental changes and DNA exchange reactions. Furthermore, domain-selective ligation combined with photoinduced interlayer mixing allowed for the fabrication of unusual edge-sealed double-layered films through midlayer etching, which is difficult to realize by other methods. © 2024 American Chemical Society.
DOI
10.1021/acs.nanolett.3c04637
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

BROWSE