Site-Specific Integration of Hexagonal Boron Nitride Quantum Emitters on 2D DNA Origami Nanopores

Journal article (2024)

Authors

Y. Wang Team Carlas Smith - Mechanical, Maritime and Materials Engineering
Z. Yu Dynamics of Micro and Nano Systems - Mechanical, Maritime and Materials Engineering
C.S. Smith Team Carlas Smith - Mechanical, Maritime and Materials Engineering
S. Caneva Dynamics of Micro and Nano Systems - Mechanical, Maritime and Materials Engineering
Research Group
Team Carlas Smith (Mechanical, Maritime and Materials Engineering) (TU Delft)
More Info
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Published Date

2024

Language

English

Faculty

Mechanical, Maritime and Materials Engineering

Department

Delft Center for Systems and Control

Research Group

Team Carlas Smith

Abstract

Optical emitters in hexagonal boron nitride (hBN) are promising probes for single-molecule sensing platforms. When engineered in nanoparticle form, they can be integrated as detectors in nanodevices, yet positional control at the nanoscale is lacking. Here we demonstrate the functionalization of DNA origami nanopores with optically active hBN nanoparticles (NPs) with nanometer precision. The NPs are active under three wavelengths of visible illumination and display both stable and blinking emission, enabling their accurate localization by using wide-field optical nanoscopy. Correlative opto-structural characterization reveals deterministic binding of bright, multicolor hBN NPs at the pore rim due to π-π stacking interactions at site-specific locations on the DNA origami. Our work provides a scalable, bottom-up approach toward deterministic assembly of solid-state emitters on arbitrary structural elements based on DNA origami. Such a nanoscale arrangement of optically active components can advance the development of single-molecule platforms, including optical nanopores and nanochannel sensors.