Nanotexturing polymeric surfaces changes their surface properties while their bulk properties remain unchanged. Wrinkles and folds can increase the efficiency and mechanical stability of optical and electrical devices. We have […]
Direct visualization of interactions between drug-loaded nanoparticles and the cancer cell nucleus is crucial for understanding the mechanism behind cancer cell death. Nanoconstructs composed of nucleolin-specific aptamers and gold nanostars […]
Solid-state photolithography (SSP) enables the capabilities of one of the most important tools in nano- and microfabrication, the mask aligner, to be performed on the benchtop. SSP can create patterns […]
We are investigating the optical properties of 3D anisotropic plasmonic particles. Recently, we have designed a way to create nested Au pyramidal nanoshells. These particles exhibit two plasmon resonances at […]
We are working on a new class of asymmetric metal particles: nanofabricated pyramids. Because their nanofabrication procedure is extremely versatile, pyramids are ideal for designing multifunctional plasmonic materials that have […]
The interaction of light with surface plasmons — collective oscillations of free electrons — in metallic nanostructures leads to novel optical phenomena. These structures typically consist of ordered arrays of […]
We have combined bottom-up chemical methods and top-down nanoscale patterning techniques—chemical nanofabrication—to generate patterned and free-standing transition metal chalcogenide (TMC) nanostructures. This approach is general and flexible and can produce […]
By combining near-field and far-field spectroscopy, we have provided direct evidence for the role of surface plasmons (SPs) in the enhanced optical transmission of light through metallic nanoscale hole arrays. […]
Nanoscale fabrication methods provide a unique approach to synthesize nanoscale materials. We have used laser-assisted embossing to generate close-packed arrays of hemispherical nanowells with zeptoliter (zL)-volumes. Nanowells with diameters as […]