20n Bio Closes US$7.5M Seed+ (May 20) for AI-Enabled Cyclic Peptide Discovery Platform, Pairs With Lannacheng on Radionuclide Drug Conjugate Pipeline
20n Bio announced a $7.5 million Seed+ round May 20 led by a strategic industry investor with participation from a London-based life-sciences VC. Proceeds advance the company's high-throughput cyclic peptide platform — which screens libraries of up to 10 trillion sequences — and integrate AI into the discovery workflow. 20n is a Bayer Co.Lab resident and has a January 2026 long-term partnership with Yantai Lannacheng Biotechnology to develop next-generation radionuclide drug conjugates, leveraging Lannacheng's clinical translation and manufacturing for precision oncology programs.