Cesar Valades-Cruz

Imaging methods

Measuring molecular orientation and nanoscale structure using polarized super-resolution microscopy.

Measuring molecular orientation and nanoscale structure using polarized super-resolution microscopy.

Quantitative nanoscale imaging of molecular orientation

Polarized super-resolution microscopy for imaging orientational order in biological structures

About: Long-standing collaboration with Sophie Brasselet’s team at Institut Fresnel, France. We develop polarization-based super-resolution methods to measure the nanoscale organization and 3D orientation of biological filaments such as actin networks.

Latest: Our new method 4polar3D, published in Nature Communications (2026), enables 3D orientation measurements of single molecules in dense actin structures using ratiometric polarization splitting — with minimal optical complexity and fast data processing. Read the paper →

Polarized super-resolution image of biological structure Ultrastructure imaging