Biosensors based on plasmonic nanostructures are widely used in various applications and benefit from numerous operational advantages. One type of application where nanostructured sensors provide unique value comparison with, for instance, conventional surface plasmon resonance, is investigations the influence nanoscale geometry biomolecular binding events. In this study, we show that "nanowells" conformally coated with a continuous lipid bilayer can be to detect preferential insulin...

A flexible electronic paper in full color is realized by plasmonic metasurfaces with conjugated polymers. An ultrathin large-area electrochromic material presented which provides high polarization-independent reflection, strong contrast, fast response time, and long-term stability. This technology opens up for new readers posters ultralow power consumption.

Emission of photoexcited hot electrons from plasmonic metal nanostructures to semiconductors is key a number proposed nanophotonics technologies for solar harvesting, water splitting, photocatalysis, and variety optical sensing photodetector applications. Favorable materials catalytic properties make systems based on gold TiO2 particularly interesting, but the internal photoemission efficiency visible light low because wide bandgap semiconductor. We investigated incident photon-to-electron...

Plasmonic color generation offers several advantages but is also limited by the cost and availability of noble metals like gold. In this work, we present color-tunable metasurfaces with high chromaticity reflectivity consisting an aluminum mirror, a dielectric spacer, plasmonic nanohole array in copper. Copper shown to be excellent alternative gold when properly protected from oxidation makes it possible generate wide RGB gamut covering 27% standard RGB. By patterning into microscale pixel...

In recent years there has been a growing interest in the use of plasmonic nanostructures for color generation, technology that dates back to ancient times. Plasmonic structural colors have several attractive features but once structures are prepared normally fixed. Lately, concepts emerged actively tuning colors, which opens up many new potential applications, most obvious being novel displays. this review we summarize progress active control and evaluate them with respect performance...

Abstract Reflective displays or “electronic paper” technologies provide a solution to the high energy consumption of emissive by simply utilizing ambient light. However, it has proven challenging develop electronic paper with competitive image quality and video speed capabilities. Here, first technology that provides switching structural colors contrast over whole visible is shown. Importantly, this achieved broadband‐absorbing polarization‐insensitive electrochromic polymer instead liquid...

Plasmonic nanohole arrays are widely used for optical label-free molecular detection.

Plasmonic structural colors have recently received a lot of attention. For many applications there is need to actively tune the after preparing nanostructures, preferably with as strong changes in optical response possible. However, date, lack systematic investigations on how enhance contrast electrically induced color modulation. In this work we implement electrochromic films plasmonic metasurfaces and compare systematically organic inorganic materials, primary aim maximize brightness...

Abstract Interfaces functionalized with polymers are known for providing excellent resistance towards biomolecular adsorption and their ability to bind high amounts of protein while preserving structure. However, making an interface that switches between these two states has proven challenging concepts date rely on changes in the physiochemical environment, which is static biological systems. Here we present first can be electrically switched a high‐capacity (>1 μg cm −2 ) multilayer...

We have created a simple and efficient thermal plasmonic sensor platform by letting DC current heat nanohole arrays. The can be used to determine thermodynamic parameters in addition monitoring molecular reactions real-time. As an application example, we use the kinetics activation energy for desorption of thiol monolayers on gold. Further, temperature metal measured optically spectral shift bonding surface plasmon mode (0.015 nm/K). show that this resonance is caused lattice expansion,...

A novel type of plasmonic nanopore array in a metal–insulator–metal thin film is presented. The optical properties this structure are described using generic theoretical framework for surface waves coupled multilayer system. characteristic spacing (short‐range order) the pores enables grating‐type coupling to hybridized plasmons, with stronger some modes than others. nature resonances and their excitation mechanisms can be conceptually understood from charge distribution argument....

We show that hydrophilic polymer brushes inside nanopores form a strong barrier for proteins despite consisting mainly of water.

Conjugated polymers are promising material candidates for many future applications in flexible displays, organic circuits, and sensors. Their performance is strongly affected by their structural conformation including both electrical optical anisotropy. Particularly thin layers or close to crucial interfaces, there few methods track organization functional behaviors. Here we present a platform based on plasmonic nanogaps that can assess the chemical structure orientation of conjugated down...

Control of molecular translocation through nanoscale apertures is great interest for DNA sequencing, biomolecular filters, and new platforms single molecule analysis. However, methods controlling the permeability nanopores are very limited. Here, we show how functionalized with poly(ethylene glycol) brushes, which fully prevent protein translocation, can be reversibly gated to an "open" state by binding IgG antibodies that disrupt macromolecular barrier. On basis surface plasmon resonance...

Dynamically tunable reflective structural colors are attractive for displays (electronic paper). However, it is challenging to tune a thin layer of color across the full red-green-blue (RGB) basis set at video rates and with long-term stability. In this work, achieved through hybrid cavity built from metal-insulator-metal (MIM) "nanocaves" an electrochromic polymer (PProDOTMe2 ). The modulated by electrochemically doping/dedoping polymer. Compared traditional subpixel-based systems,...

Location-specific nanoplasmonic sensing by monitoring different spectral parameters is used to show how norovirus accumulate in membrane invaginations.

Nanoplasmonic sensors have emerged as a promising measurement approach to track biomacromolecular interactions involving lipid membrane interfaces. By taking advantage of nanoscale fabrication capabilities, it is possible design sensing platforms with various architectural configurations. Such capabilities open the door fabricating membrane-coated nanoplasmonic varying degrees curvature in order understand how interaction processes are influenced by curvature. Herein, we employed an indirect...

Plasmonic nanostructures are widely used for various sensing applications by monitoring changes in refractive index through optical spectroscopy or as substrates surface enhanced Raman spectroscopy. However, most practical situations conventional plasmon resonance is preferred biomolecular interaction analysis because of its high resolution coverage and the simple single-material planar interface. Still, plasmonic may find unique applications, instance when nanoscale geometry itself...

Biosensors based on plasmonic nanostructures offer label-free and real-time monitoring of biomolecular interactions. However, so do many other surface sensitive techniques with equal or better resolution in terms coverage. Yet, unique possibilities to study effects associated nanoscale geometry. In this work we use nanopores double gold films detect binding proteins inside them. By thiol trietoxysilane chemistry, receptors are selectively positioned the silicon nitride interior walls. Larger...

We present new plasmonic nanopore arrays and their optical properties, in particular the influence from short-range <italic>vs.</italic> long-range ordering.

Ultrathin plasmonic metasurfaces create bright colors when illuminated by white light. On page 9956, A. B. Dahlin and co-workers show that growing a conductive polymer on the nanostructures, they can be electrically switched between "color on" off" state. This opens up way for new types of low-power flexible electronic paper displays.

Two different surface plasmon modes in a metal-insulator-metal coupled thin-film system are shown by A. B. Dahlin et al. on page 556. When the two metal films brought into close proximity thin dielectric spacer, bonding-mode plasmons hybridize and produce new with drastically properties terms of near-field distribution, dispersion relation, propagation length. The nanopore array enables coupling to these modes, although excitation is much more efficient for higher-energy mode due nature its...