Multimolecular Super Resolution Metabolic Imaging in Aging and Diseases

We developed a super resolution (~59 nm) multimolecular SRS metabolic imaging platform. Integrating it with Fluorescence Lifetime Imaging (FLIM), multiphoton fluorescence (MPF), and second harmonic generation (SHG), we achieved  a multimodal imaging system. 

We discovered lipid-, protein-, carbohydrate-, and DNA/RNA-specific Raman shifts, and developed spectral unmixing methods to achieve macromolecular selectivity at subcellular resolution.

Schematic of workflow of 4 modality super resolution multimolecular imaging platform . Scale bar: 10 μ m

Deep Tissue Imaging Platform

​We are developing and applying novel deep tissue imaging platforms including: 

Isotope probed multiplex stimulated Raman scattering (ipm-SRS), 

Multiphoton fluorescence (MPF), 

Enhanced stimulated Raman scattering (ESRS) microscopy.  


Drug Delivery

We use bioorthogonally-labeled SRS combined with multiphoton fluorescence microscopy to image drug delivery in cells, tissues, organoids, and in animals.


Two photon fluorescence imaging of brain microvessel ( Red is solutes injection into vessels) and astroctyes (Gcamp 6 ) in vivo in rodent.

Metabolism 

We use label free and bioorthogonally-labeled SRS combined with multiphoton fluorescence microscopy to detect early stage in situ metabolic changes in aging, obesity, development, neurodegenerative diseases, cancer, and more.