Tags - (2) chromatin nanoimaging

Department(s)/lab(s): Biomedical Engineering | Backman Biophotonics Laboratory @ Northwestern
Summary:

Backman develops nanoscale-sensitive optical biophotonics -- including chromatin-sensitive partial-wave spectroscopic (PWS) microscopy, which is label-free and detects mass-density fluctuations of chromatin packing domains below the diffraction limit -- and combines it with super-resolution imaging, electron tomography, and computational genome modeling in his nano-ChIA platform. The lab links this multi-scale nanoscale chromatin imaging to gene-expression physics and has translated the technology into cancer early-detection diagnostics through several spinout companies.

Department(s)/lab(s): School of Physics (joint with Biochemistry and Pharmacology) | Hinde Laboratory (Cell Nucleus Biophysics) @ UMelb
Summary:

Hinde is a fluorescence-fluctuation physicist embedded in cell biology: she uses pair-correlation function analysis, number-and-brightness, phasor-FLIM and FRET to read out chromatin compaction, protein-chromatin binding dynamics and nucleocytoplasmic transport in living nuclei, at spatial and temporal scales that conventional imaging averages away. The programme is a technique-pushing one — the emphasis is on extracting nanoscale structural information from photon statistics rather than on brute-force localisation — and it is now being coupled to quantum sensing through her QUBIC investigatorship, where the goal is to combine fluorescence readouts with NV-based magnetic and spin-noise contrast in the same cell. Positioned against the established body of NV-ensemble quantum sensing work — DEER, nanoscale NMR and T1 relaxometry protocols operating at pT/sqrt(Hz) field sensitivity — her role in QUBIC is to supply the cell-biological questions and the correlative optical readouts that make pT/sqrt(Hz)-class ensemble sensing biologically interpretable. Preferred attribute present: lifetime- and orientation-resolved methods pushing past the usual resolution limits.