Bio-orthogonally Deciphered Binary Nanoemitters for Tumor Diagnostics

Area of Science:

• Biomaterials Science
• Nanotechnology
• Bio-orthogonal Chemistry

Background:

• Bioinspired design is crucial for novel biomaterial discovery.
• Smart biomaterials require in vivo biological processability for biomedical applications.
• Modulating nanomaterial optical properties within living systems remains a challenge.

Purpose of the Study:

• To develop a bio-orthogonal approach for modulating nanomaterial optical properties in vivo.
• To create self-assembled nanoemitters with controllable optical features for biomedical use.
• To enable high-performance tumor imaging in living systems.

Main Methods:

• Designed and synthesized self-assembled nanoemitters based on a cyanine-pyrene molecule.
• Utilized a bio-orthogonal mechanism activated by glutathione (GSH) to modulate optical properties.
• Evaluated the nanoemitters' performance in vivo for tumor imaging.

Main Results:

• The nanoemitters exhibited inert optical properties initially.
• Glutathione efficiently and reliably modulated the nanoemitters' structure and optical features via a bio-orthogonal mechanism.
• The modulated nanoemitters displayed spontaneous binary emissions, enabling high-performance in vivo tumor imaging.

Conclusions:

• A novel bio-orthogonally deciphered strategy was demonstrated for controlling nanomaterial optical properties in living systems.
• The developed nanoemitters show potential for advanced biomedical applications, particularly in vivo tumor imaging.
• This strategy opens new avenues for designing versatile smart biomaterials and devices.