ATDBio was established to provide high quality oligonucleotides to scientists around the world. ATDBio oligonucleotides are used successfully in academic and commercial research in the fields of genetics, genomics, molecular biology, biochemistry, biotechnology and nanotechnology. We supply a wide range of custom-made unmodified and chemically modified oligonucleotides for small and large scale applications. Each oligonucleotide we make is unique, and we insist on the highest standards to maintain the best possible quality for every oligonucleotide. Collectively, we have over 50 years' experience in nucleic acids chemistry and oligo synthesis, and we are at the forefront of nucleic acids research.