Error Correction for DNA Storage

DNA-based storage is an emerging technology that provides high information density and longevity. Noise and errors are present in almost every stage of the process: writing, storing, and reading. Thus, efficient error correction is crucial to guarantee high reliability and low cost of storing data in DNA. Due to technological constraints and biological limitations, error correction in DNA-based storage poses several coding-theoretic challenges, some of which are new. In this paper, we briefly introduce some of these challenges, including deletion/insertion correcting codes, codes over sliced channels, and duplication-correcting codes. We describe some of the major concepts and solutions in the respective topics, and provide bibliographic notes that briefly review the related literature.