Introduction to the Special Issue on Biophotonics—Part 1

The first part of this special issue on biophotonics can be broken down into six sections: 1) advanced bioimaging and microscopy; 2) novel approaches in biophotonic diagnostics and therapeutics; 3) photoacoustic tomography; 4) light-cell and light-tissue interactions; 5) novel biosensing techniques; and 6) advanced nanobiophotonics. There are 23 papers in this issue.