Research Areas - (2) Single-Molecule Imaging of Gene Expression Machinery and Diagnostic Biosensors

Full path: Biology > Biophysics > Quantum Biology / Biosensing > Single-Molecule Imaging of Gene Expression Machinery and Diagnostic Biosensors

Department(s)/lab(s): Physics (Biological Physics, Condensed Matter Physics) | Gene Machines (Kapanidis Group) @ Oxford
Summary:

Kapanidis' Gene Machines group develops single-molecule fluorescence methods (including ALEX/FRET and super-resolution microscopy) to observe transcription and other gene-expression machinery in real time in bacteria and viruses, and leverages this toolkit to build ultrasensitive DNA-based biosensors for pathogen and antibiotic-resistance detection.

Department(s)/lab(s): School of Physics / School of Chemistry | Wickham DNA Nanotechnology Group @ USyd
Summary:

Wickham builds DNA origami nanostructures — programmable, self-assembling scaffolds with nanometre-precision addressability — and uses them as molecular machines, drug-delivery vehicles and, most relevantly, as rulers and probes for single-molecule measurement. DNA origami is the standard platform for DNA-PAINT super-resolution and for positioning fluorophores, nanoparticles or spin labels at defined separations, and her group works on dynamic, reconfigurable devices that respond to biological triggers. 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 — DNA origami is the leading candidate technology for positioning target molecules at a controlled standoff from a near-surface NV ensemble, which is the central geometric problem in pushing NV nanoscale NMR and DEER from pT/sqrt(Hz) ensembles down to single-molecule sensitivity. Genuinely complementary skill set for a quantum-sensing candidate.