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Area of Science:

  • Synthetic organic chemistry
  • Polymer chemistry
  • Chemical biology

Background:

  • Development of sequence-defined abiological oligomers is crucial for novel applications.
  • Solid-phase synthesis offers a platform for controlled oligomer construction.

Purpose of the Study:

  • To explore solid-phase morpholino chemistry for synthesizing sequence-defined abiological oligomers.
  • To establish a binary system for encoding information within oligomers.
  • To validate the decoding and retrieval of stored binary messages.

Main Methods:

  • Synthesis and characterization of two morpholino comonomers (0 and 1) with distinct coding substituents.
  • Solid-phase synthesis of oligomers using a repetitive cycle of coupling and deprotection steps.
  • Optimization of the synthesis by incorporating a capping step to ensure uniformity.
  • Characterization of synthesized oligomers using liquid chromatography mass spectrometry (LC-MS).
  • Analysis of oligomer fragmentation patterns using tandem mass spectrometry (MS/MS).

Main Results:

  • Successfully synthesized sequence-defined oligomers using a binary morpholino alphabet.
  • Demonstrated that incorporating a capping step yields uniform coded sequences.
  • LC-MS and MS/MS analyses confirmed the structure and sequence of the synthesized oligomers.
  • Achieved full sequence coverage and reliable decoding of stored binary messages.

Conclusions:

  • Solid-phase morpholino chemistry provides a robust method for creating sequence-defined abiological oligomers.
  • The developed binary system effectively encodes and allows for the retrieval of digital information.
  • This approach holds promise for applications requiring sequence-specific molecular information storage.