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Accession GMS-82-2 

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TitleDNA droplet phase separation with environmental miRNAs for biosensing
Submit date2025-05-14 02:15:48
Last update date2025-05-14 14:45:04
Contact Masahiro TAKINOUE
masahiro.takinoue AT takinoue-lab.jp
Institute of Science Tokyo
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Total file size267.41 KB
Keywords Synthetic DNA Nanoscale DNA droplet DNA DNA nanotechnology 
 Study
Experiment type In vitro experiments for the formation of artificial liquid-liquid phase separation droplets of DNAs and application to biosensing
Summary This study reports a computational DNA droplet that can recognize a specific combination of tumor biomarker microRNAs (miRNAs) as molecular inputs and output a DNA logic computing result by physical DNA droplet phase separation. A mixed DNA droplet consisting of three DNA nanostructures with orthogonal sticky-end sequences and two linker DNAs to cross-bridge the orthogonal DNA nanostructures is proposed. By the hybridization of miRNAs with the linkers, the cross-bridging ability is lost, causing the phase-separation of the mixed DNA droplet into three DNA droplets, resulting in executing a miRNA pattern recognition described by a logical expression ((miRNA-1 ∧ miRNA-2) ∧ (miRNA-3 ∧ ¬miRNA-4)). This experimentally demonstrates that the computational DNA droplets recognize the above specific pattern of chemically synthesized miRNA sequences as a model experiment.
Citation(s) Jing Gong, Nozomi Tsumura, Yusuke Sato, *Masahiro Takinoue, “Computational DNA droplets recognizing miRNA sequence inputs based on liquid-liquid phase separation”, Adv. Funct. Mater., 32, 2202322, (2022), DOI: 10.1002/adfm.202202322
 Experiment
OrganismOTHERs
Cell (Tissue) not applicable
Protocol Sequence details are attached as a PDF file.
Data processing
 Analysis
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GMS_sequences_DNA-droplets.pdf (178.95 KB)  
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1.jpg (88.46 KB)  
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[985] GMS_sequences_DNA-droplets.pdf
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 application/pdf 178.95 KB MD5: 11859d06fe103b3fd4692b55e3b39380
[984] 1.jpg
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 image/jpeg 88.46 KB MD5: 8f25161134e9e47bef7771b4f27e2d23