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DNA-based nanobots can make limitless copies of themselves.

 DNA-based nanobots can make limitless copies of themselves. 


DNA is a molecule that can self-assemble itself. And DNA-based nanobots can make limitless copies of themselves. The self-replication of the DNA is an interesting tool. That allows researchers to nanobots with complicated actions. The DNA based nanotechnology is the tool, that can make everything. But safe use of those systems requires that their creators have complete knowledge of what the DNA makes. If there is wrong code in the DNA. The results can be devastating. 

But if the researchers can observe and copy the self-assembly active points into other materials, that makes possible to create compilicated self-assembly non-organic structures like small silicone plates. In that process, the base pairs that play an active role in molecular self-assembly are put into different silicone plates. 


At UNSW, researchers use DNA to build nanorobots. Pictured here are their PolyBricks. Credit: Jonathan Berengut (Phys.org/DNA nanobots build themselves: How can we help them grow the right way?)




Then those plates will driven together. In that model, the base pairs that make the self-replication in the DNA will be separated, and then they can connect to things like hydrocarbon chains. The DNA self-replication in complex structures is a thing. That makes nanomachine mass production possible. The main problem with nanotechnology is the small size of those machines. Using photons and supercomputers is possible to mass-produce some nanomachines. But molecular self-assembly will be an easier way to use those tiny machines. 

Those nanomachines can used to transfer genomes to cells, or they can form self-assembly microchips. These kinds of nanomachines have multiple points of use from cancer therapy to weapon solutions, and that means those systems are tools that can make many things. And all those things are not nice. Nanotechnology is the most powerful tool that humans ever imagined. 

The DNA-based nanomachines can have similar code, but their operators determine, what kind of thing that system can make. The nanomachines can reprogram cells. They can fill blood vessels that transport blood to tumors and program cells to die. And they can reprogram bacteria to transfer genome, that orders them to die to other bacteria. These kinds of tools are dangerous in the wrong hands.  

In some wild visions, the molecular self-assembly can be used to connect itself to pollution from water and carbon emissions. In that model, the molecule that ties carbon will released to exhaust gas or polluted water. The idea is that the molecule connects carbon to itself. 

Most of the poisons are carbon-based molecules, and if the system can remove carbon from them, that cuts poison molecules into pieces. Similar molecules can be used to clean waste from smoke. And if the carbon is removed from nerve gas molecules that destroys the gas. 


https://phys.org/news/2020-12-dna-nanobots.html


https://hackaday.com/2023/12/09/nanobots-self-replicate/


https://en.wikipedia.org/wiki/Self-assembly_of_nanoparticles


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