Small-molecule photoswitches for fluorescence bioimaging: engineering and applications
Magdalena Olesińska-Mönch1, Claire Deo1
1Cell Biology and Biophysics Unit, European Molecular Biology Laboratory (EMBL), Heidelberg 69117, Germany. claire.deo@embl.de.
Summary
Small-molecule photoswitches offer controllable fluorescence for advanced biological imaging. Molecular engineering advances these tools for super-resolution microscopy and functional biosensors, overcoming design challenges.
Area of Science:
- Chemical Biology
- Microscopy
- Molecular Engineering
Background:
- Fluorescence microscopy is crucial for visualizing biological systems.
- Controlling fluorophore properties enables advanced imaging techniques.
Purpose of the Study:
- Review progress in small-molecule photoswitches for biological imaging.
- Highlight molecular engineering strategies and applications.
- Identify challenges in photoswitch design and implementation.
Main Methods:
- Literature review of recent advancements in photoswitchable fluorophores.
- Analysis of molecular engineering approaches for biological applications.
- Discussion of current and potential applications in bioimaging.
Main Results:
- Small-molecule photoswitches offer reversible control over fluorophore properties.
- Engineering strategies are advancing their use in super-resolution microscopy.
- Functional biosensors are being developed using these responsive molecules.
Conclusions:
- Photoswitchable small molecules are key to next-generation biological imaging.
- Continued molecular engineering is needed to overcome current limitations.
- These tools promise significant impact on understanding complex biological systems.
Related Concept Videos
Super-resolution Fluorescence Microscopy
7.1K
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been...
7.1K
Photoluminescence: Applications
463
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
463


