Aptus Biotech is a biotech start-up founded in 2010 from a collaboration agreement with the Ramon y Cajal Hospital Foundation. Our goal is to become a leading start-up in the development of new biotechnological applications based on aptamers. Aptus management and technical team are also supported by Ramon y Cajal Foundation team, with an extensive experience in research and biomedical applications. We also collaborate with other research centers aiming for developing innovative therapeutic and diagnostic tools based on aptamer technology. APTUS Biotech offers aptamer selection services: oligonucleotide Selection by SELEX method, aptamer storage through its insertion in bacteria, chemical synthesis of aptamers and binding studies with target proteins. Aptamers are oligonucleotides capable of identifying a target molecule with high affinity and specificity, which grants them enormous potential as therapeutic and diagnostic tools.