Metal nanoclusters, owing to their intriguing optical properties, has captivated research interest over the years. Of special interest has been the chiral nanoclusters that display optical activity in the visible...

Fabrication and transmission of plasmonic chirality is a rapidly developing area of research. While nanoscale chirality is reasonably well explored, research on intrinsically chiral nanostructures, that has ramifications to origin of homochirality, is still in its infancy. Herein, we report the synthesis of dog-bone shaped chiral gold nanostructures using a chiral cationic surfactant with excess ascorbic acid. Chiral growth is attributed to the specific binding and structure breaking ability of chiral surfactant and ascorbic acid. The controlled assembly of particles facilitated tuning and enhancement of chiral signals. Experimental observations were validated with theoretical simulations modelled in frequency domain with a surface integralequation parameterization. Work highlighting the generation and tuning of plasmonic chirality provides new insights into the understanding of intrinsic chirality and paves way for their application in enantioselective catalysis and biosensing.

Fabrication and transmission of plasmonic chirality is a rapidly developing area of research. While nanoscale chirality is reasonably well explored, research on intrinsically chiral nanostructures, that has ramifications to origin of homochirality, is still in its infancy. Herein, we report the synthesis of dog‐bone shaped chiral gold nanostructures using a chiral cationic surfactant with excess ascorbic acid. Chiral growth is attributed to the specific binding and structure breaking ability of chiral surfactant and ascorbic acid. The controlled assembly of particles facilitated tuning and enhancement of chiral signals. Experimental observations were validated with theoretical simulations modelled in frequency domain with a surface integral‐equation parameterization. Work highlighting the generation and tuning of plasmonic chirality provides new insights into the understanding of intrinsic chirality and paves way for their application in enantioselective catalysis and biosensing.

A modified seed‐mediated approach using a chiral co‐surfactant as capping ligand has been developed for the synthesis of intrinsically chiral gold dog‐bone‐shaped nanoparticles. The shape anisotropy at the edges was found to play a crucial role in driving the optical activity of these nanostructures, as reported by Jatish Kumar and co‐workers in their Research Article (e202300461). The intense plasmonic chirality observed in the visible and NIR region of the electromagnetic spectrum can be of potential use in biosensing and enantioselective catalysis.

A modified seed‐mediated approach using a chiral co‐surfactant as capping ligand has been developed for the synthesis of intrinsically chiral gold dog‐bone‐shaped nanoparticles. The shape anisotropy at the edges was found to play a crucial role in driving the optical activity of these nanostructures, as reported by Jatish Kumar and co‐workers in their Research Article (e202300461). The intense plasmonic chirality observed in the visible and NIR region of the electromagnetic spectrum can be of potential use in biosensing and enantioselective catalysis.