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  • Access sequences you couldn’t get elsewhere – for free.

    EDS enables the synthesis of oligos with high G-C content, repetitive or palindromic sequences, and other complex regions such as poly(A) tails, ITRs, UTRs, hairpins and more.

    Share how custom ssDNA would support your research, whether it’s in mRNA vaccines, AAV gene therapies, or synthetic biology, and you could win custom synthesis of sequences tailored to your exact research needs.

Enjoy tasty treats as you work on your next innovation...

We will select winners based on the scientific merit, innovation, and potential impact of the proposed research:

First Prize: Up to €1000 worth of custom ssDNA synthesis from DNA Script as well as The Piccadilly Hamper from Fortnum & Mason full of delightful treats such as their  finest examples of tea, marmalades, preserves, condiments, biscuits and chocolates. 

Second Prize: Up to €1000 worth of custom ssDNA synthesis from DNA Script.

Image credit: Fortnum & Mason

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The DNA Script Difference

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Long Oligos from 15 nt to 500 nt
• High accuracy of only 0.35% error rate
• 50 pmol delivered ready to use in ultrapure water

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More Environmentally Friendly
• Large reduction in hazardous  chemical use
• More sustainable

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Complex DNA Designs
• High GC content, poly(A), ITR, UTR, promoters etc.
• No need to redesign to remove complexity

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Reliability
• Typically ships within 15 business days
• Clear communication on delivery timelines

Meet our revolutionary EDS platform

Solid Supports and iDNA

Access previously out-of-reach sequences

Avoid rejection and the need to redesign, our platform can accommodate your challenging projects including poly(A) tails, telomeric sequences, ITRs and sequences with secondary structure.  

TdT DNA Synthesis

Length no longer a limitation

Our groundbreaking EDS technology enables you to order oligos up to 500 nucleotides in length without the need to stitch together.

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Benefit from natural DNA

Not only is Enzymatic DNA Synthesis more efficient, but it also has a much lower environmental impact than traditional DNA synthesis.

How EDS works

 1. Engineered Terminal Deoxynucleotidyl Transferase (TdT) adds reversibly-terminated nucleotides to the 3’-end of any single DNA strand with high fidelity and coupling efficiency.

 2. Reversibly terminated nucleotide triphosphates (dNTPs) pause synthesis after a single base addition. These dNTPs are relatively small and rapidly and are efficiently restored using mild acidic conditions. They leave no scars, yielding completely natural, molecular biology-ready DNA.

 3. A solid support allows for the control of synthesis scale and manipulating the growing oligo strands throughout the EDS process. The solid support has physical and chemical features optimized to enable the synthesis of ready-to-use long and complex DNA.

Unlock your research potential
with €1000 of free DNA

Advancing mRNA production, cell and gene therapy, synthetic biology, or gene assembly? This is your chance to accelerate your project with €1,000 worth of high-quality, custom ssDNA—designed to meet the demands of your research.

“Enzymatic DNA synthesis (EDS) has the potential to be faster and give higher-purity DNA with none of the drawbacks of the conventional phosphoramidite DNA synthesis method”

Science Advances, vol 9, Issue 27

Contest terms & conditions

Name of the contest: “Win Free DNA - Contest”

Organizer: This contest, organized by DNA Script SAS, with a shared capital of 81.206,50 euros, whose registered office is located at IMMEUBLE OKABE, 67 AVENUE DE FONTAINEBLEAU, 94270 LE KREMLIN-BICETRE and registered under number 801172834 in the Créteil Trade and Companies Register, represented by any duly authorized person, is intended to enable all entrants to try to win a free DNA sequence synthesis.

Contest period: The contest begins on July 7th, 2025 at 09:00 AM and ends on August 29th, 2025 at 11:59 PM.

Full terms & conditions: Download complete Contest rules here