🧬 DNA hacking unlocks practical 3D nanofabrication

DNA looks set to revolutionize precision nanoscale manufacturing as researchers learn to exploit its remarkable capacity for programming to self-assemble complex functional components.

Scientists have achieved a pivotal breakthrough in using coated DNA scaffolding to create customizable metallic and semiconductor nanostructures with an unprecedented degree of accuracy. In today’s Must Read, learn more about how programmable DNA could soon assemble high-tech electronics and components as easily as the building blocks of life itself.

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Brookhaven scientists used silica-reinforced DNA frames to synthesize customizable 3D metallic and semiconductor nanostructures. By chemically coating the tiny lattice scaffolds, they produced accurate nanoscale alloys and compounds with aluminum and platinum. Advanced imaging then confirmed the intricate atomic assembly as x-rays penetrated different sections of the materials.

Practical nanofabrication now looks increasingly viable for electronics, computing, and energy applications as customized forging transcends lab scale. The method’s ease of access and control also unlocks these previously elusive capabilities for global research partners. 

MIT engineers rapidly 3D-printed aluminum chair frames and tables by continuously depositing molten metal instead of solid wire like conventional methods. While forgoing fine detail for speed, their “liquid metal printing” approach hardens objects in minutes using glass bead powder beds for heat dispersion. This could slash costs for construction components or prototypes from recycled materials.

Florida shipping firm Crowley launched the first fully battery-powered tugboat for eco-friendly port maneuvers. Dubbed eWolf, the 25-meter vessel touts 178 fewer tons of emissions over ten years while matching diesel counterparts in safety and performance. The pioneering craft spotlights electrification’s inroads into maritime services.

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