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Giant Purcell Broadening and Lamb Shift for DNA-Assembled Near-Infrared Quantum Emitters.
ACS Nano
January 2025
Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
Controlling the light emitted by individual molecules is instrumental to a number of advanced nanotechnologies ranging from super-resolution bioimaging and molecular sensing to quantum nanophotonics. Molecular emission can be tailored by modifying the local photonic environment, for example, by precisely placing a single molecule inside a plasmonic nanocavity with the help of DNA origami. Here, using this scalable approach, we show that commercial fluorophores may experience giant Purcell factors and Lamb shifts, reaching values on par with those recently reported in scanning tip experiments.
View Article and Find Full Text PDFConstruction of Double-layered DNA Tiles and Arrays from Double Crossover Motifs.
Chembiochem
January 2025
State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, P. R. China E-amil.
DNA double crossover (DX) motifs including DAE (double crossover, antiparallel, even spacing) and DAO (double crossover, antiparallel, odd spacing) are well-known monolayered DNA building blocks for construction of 2D DNA arrays and tubes in nanoscale and microscale. Compared to the 3D architectures of DNA origami and single-stranded DNA bricks to build nanoscale 3D bundles, tessellations, gears, castles, etc., designs of double- and multi-layers of DX motifs for 3D architectures are still limited.
View Article and Find Full Text PDFAI-Based Prediction of Protein Corona Composition on DNA Nanostructures.
ACS Nano
January 2025
Department of Electrical Engineering and Computer Sciences, University of California Berkeley, Berkeley, California 94720, United States.
DNA nanotechnology has emerged as a powerful approach to engineering biophysical tools, therapeutics, and diagnostics because it enables the construction of designer nanoscale structures with high programmability. Based on DNA base pairing rules, nanostructure size, shape, surface functionality, and structural reconfiguration can be programmed with a degree of spatial, temporal, and energetic precision that is difficult to achieve with other methods. However, the properties and structure of DNA constructs are greatly altered due to spontaneous protein adsorption from biofluids.
View Article and Find Full Text PDFSequence-Defined DNA Polymers: New Tools for DNA Nanotechnology and Nucleic Acid Therapy.
Acc Chem Res
January 2025
Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 0B8, Canada.
ConspectusStructural DNA nanotechnology offers a unique self-assembly toolbox to construct soft materials of arbitrary complexity, through bottom-up approaches including DNA origami, brick, wireframe, and tile-based assemblies. This toolbox can be expanded by incorporating interactions orthogonal to DNA base-pairing such as metal coordination, small molecule hydrogen bonding, π-stacking, fluorophilic interactions, or the hydrophobic effect. These interactions allow for hierarchical and long-range organization in DNA supramolecular assemblies through a DNA-minimal approach: the use of fewer unique DNA sequences to make complex structures.
View Article and Find Full Text PDFMultifunctional DNA nanomaterials: a new frontier in rheumatoid arthritis diagnosis and treatment.
Nanoscale
January 2025
State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, Sichuan, China.
Rheumatoid arthritis (RA) remains a challenging autoimmune disease due to its complex and heterogeneous pathophysiology, which complicates therapeutic and diagnostic efforts. Advances in DNA nanotechnology have introduced DNA nanomaterials as promising tools to overcome these barriers. This review focuses on three primary categories of DNA nanomaterials applied in RA: DNA nanostructures, DNA aptamers, and DNA-modified nanoparticles.
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