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The structure and composition of subcellular organelles are closely linked to the state of cells and even entire organisms. The ability to deliver functional molecules to specific tissues and cells at the subcellular level holds significant importance. The biocompatibility, programmability, ease of modification, and addressability of DNA nanostructures enable the integration of organelle-targeting molecules, sensing modules, and drugs into a single structure, facilitating precise control of their fate in cells, thereby enhancing diagnostic and therapeutic outcomes. Herein, we briefly review the development of DNA functional elements and DNA nanotechnology, with a focus on the subcellular localization of DNA nanoarchitectures and their recent advancements in biological detection, bioimaging, and therapeutic applications. We also discuss the current limitations of DNA nanostructures in targeted delivery and envision their future applications in biology. This review provides an guideline for constructing DNA-based targeted delivery systems at the subcellular level, offering valuable insights for researchers in this field.
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http://dx.doi.org/10.1016/j.colsurfb.2025.115030 | DOI Listing |
Spectrochim Acta A Mol Biomol Spectrosc
September 2025
Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun 130122, China. Electronic address:
To achieve ultrasensitive and real-time detection of the H1N1 influenza virus, this study designed a nucleic acid-free fluorescent biosensor based on 3D spherical DNA nanostructure and CRISPR/Cas12a (3D-SDNC). The biosensor constructs a rigid 3D nano-framework via self-assembly of six oligonucleotide chains, with H1N1-specific nucleic acid aptamers and Cas12a activator strands strategically positioned at multi-spined vertices for precise spatial coupling between viral recognition and signal transduction. Upon aptamer-virus binding, the induced conformational change liberates the activator strand, thereby activating the trans-cleavage activity of the Cas12a/crRNA complex to efficiently cleave the HEX/BHQ1 double-labeled fluorescent probe and initiate cascade signal amplification.
View Article and Find Full Text PDFMed Sci (Paris)
September 2025
Biologiste, généticien et immunologiste, Président d'Aprogène (Association pour la promotion de la Génomique), 13007, Marseille, France.
DNA sequencing using nanopores is now well established. Could the approach be extended to proteins ? There are a number of difficulties but work by many groups has shown proof-of-principle solutions for most of them. Further progress could indeed lead to a workable protein sequencing approach that would have many applications in research and in the clinic.
View Article and Find Full Text PDFSmall Methods
September 2025
Institute of Analytical Chemistry and Instrument for Life Science, The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xianning West Road, Xi'an, Shaanxi, 710049, P. R. China.
Anisotropic gold nanoparticles (AuNPs) exhibit unique physicochemical properties that render them highly valuable for diverse applications. However, precise control over their growth direction and number of branches is challenging with conventional synthesis methods. A DNA origami-templated enzymatic synthesis strategy addresses this limitation.
View Article and Find Full Text PDFNAR Genom Bioinform
September 2025
Research Group for Genomic Epidemiology, National Food Institute, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.
Advances in Oxford Nanopore Technologies (ONT) with the introduction of the r10.4.1 flow cell have reduced the sequencing error rates to <1%.
View Article and Find Full Text PDFPNAS Nexus
September 2025
Department of Chemical and Biomedical Engineering, University of Missouri, Columbia, MO 65211, USA.
DNA data storage is a promising alternative to conventional storage due to high density, low energy consumption, durability, and ease of replication. While information can be encoded into DNA via synthesis, high costs and the lack of rewriting capability limit its applications beyond archival storage. Emerging "hard drive" strategies seek to encode data onto universal DNA templates without de novo synthesis, using methods such as DNA nanostructures and base modifications.
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