Evonetix gets patent for gene synthesis method  

Synthetic biology company Evonetix has been granted a European patent covering its unique Binary Assembly method for gene synthesis. 

The patent forms part of the company’s plan to simplify gene synthesis for users and enable a new generation of in-lab DNA synthesis platforms. 

Evonetix’s novel semiconductor-based synthesis chip uses precise temperature control to manage the DNA synthesis cycle at thousands of individually addressable sites across the surface of the chip. The method allows for the assembly of long DNA molecules “on-chip” while also removing synthesis errors during the assembly process. The combination of error removal and assembly processes results in a far greater proportion of accurate gene sequences than through conventional assembly methods, greatly simplifying downstream processing, the company states.  

Binary assembly utilises the charged nature of DNA molecules, combined with precision liquid flow, to move DNA between synthesis and assembly sites on the surface of a semiconductor chip, bringing together complementary sequences.  

Thermal control separates error containing sequences from those with correct homology based on changes in melting temperatures. Thousands of sites can be arrayed across a single chip surface, enabling large scale parallel synthesis and assembly.  

Official comments   

Matthew Hayes, Chief Technology Officer at Evonetix, commented: “Our Binary Assembly method is at the core of Evonetix technology. By completing full gene synthesis on one of our semiconductor chips, we can bring the prospect of a desktop DNA printer to thousands of labs. Securing this foundational IP across Europe is both a validation of the novel nature of this approach and confirms a key part of the value of the Company.” 

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