Recent advances in minimal fluorescent probes for optical imaging

Area of Science:

• Biochemistry
• Molecular Biology
• Optical Imaging

Background:

• Fluorescent probes are crucial for real-time biological imaging under physiological conditions.
• The size and potential perturbing effects of conventional probes can compromise cellular functions.
• There is a need for smaller, less invasive imaging tools.

Purpose of the Study:

• To highlight recent advancements in small fluorescent probe development for optical imaging.
• To showcase miniaturized fluorophores that minimize disruption to biological systems.
• To explore novel probes for non-invasive visualization of cellular processes.

Main Methods:

• Development of single benzene-based fluorophores with aggregation-induced emission and pH responsiveness.
• Synthesis of fluorescent nucleobases for precise nucleic acid labeling.
• Engineering of small, bright fluorescent amino acids as alternatives to fusion proteins.

Main Results:

• Small fluorescent probes offer versatility and minimal disruption to biological functions.
• Benzene-based fluorophores exhibit tunable properties for diverse applications.
• Fluorescent nucleobases provide sensitive and compatible nucleic acid labeling.
• Fluorescent amino acids enable non-invasive imaging of cellular events with high precision.

Conclusions:

• Miniaturized fluorescent probes represent a significant advancement in molecular imaging.
• These small probes enhance the ability to study biological systems non-invasively.
• Further innovations in small fluorophore development are expected to drive progress in biological research.