DNA-Guided Self-Assembling Nanofabricator NanoBuilder Prototype Unveiled: Building Arbitrary Structures on Demand at the Molecular Scale
Caltech's NanoBuilder prototype system uses DNA origami to guide nanoparticle self-assembly, achieving for the first time automated manufacturing from digital design files to molecular-scale 3D structures.
DNA-Guided Self-Assembling Nanofabricator NanoBuilder Prototype Unveiled: Building Arbitrary Structures on Demand at the Molecular Scale
Caltech released the NanoBuilder prototype system on July 7. The system uses DNA origami as "molecular scaffolding" to guide functional components — including gold nanoparticles, quantum dots, and proteins — to self-assemble according to preset three-dimensional coordinates, achieving for the first time an automated manufacturing pipeline from digital CAD design files to molecular-scale 3D structures.
In a demonstration, NanoBuilder self-assembled a 3D "nano castle" structure composed of 4,700 nanoparticles within 24 hours, measuring approximately 200 nanometers by 200 nanometers by 150 nanometers. Structural precision reached 2 nanometers, with each particle's position deviating from the design file by no more than 1 nanometer.
Potential applications include custom manufacturing of nanoscale optical devices, molecular sensors, and drug delivery vehicles. NanoBuilder currently operates only in laboratory settings, and commercialization is still 5 to 10 years away.
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