Swan Genomics, a startup developing optical nanoantenna-based single-molecule sequencing, raised A$8 million (about $5.8 million) in seed funding to advance proof of concept and pursue a Series A. The technology uses plasmonic nanoantennas to amplify fluorescent signals from individual bases, aiming to make sequencing simpler and more robust. Swan said it relies on DNA origami approaches to synthesize nanoantenna arrays that anchor DNA polymerase at signal hotspots, with the intent of achieving scalable manufacturing. The company is a spinout from the University of New South Wales (UNSW). For the diagnostics and sequencing ecosystem, the financing is another datapoint that single-molecule and optical readout strategies are still attracting capital, despite competition from established benchtop platforms and throughput-focused approaches. The seed round also underscores a typical venture pathway: demonstrating feasibility at the signal-detection and chemistry interface before scaling toward commercial flow-cell workflows.