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Fluorescent Polymeric Nanofibers as Ratiometric Multiplexed Skin Sensors of pH and Oxygen
Advanced Healthcare Materials, EarlyView.Fluorescent polymeric nanofibers and nanorods are produced as ratiometric sensors of two important physiological parameters: pH and oxygen. They operate by dual Forster resonance energy transfer from large number of energy donor dyes to limited number of two distinct energy acceptors, enabling simultaneous sensing of pH and oxygen.
Rémi Pelletier +2 more
wiley +1 more source
Advanced Healthcare Materials, EarlyView.Aerosol jet printing enables rapid, customizable fabrication of flexible, fully gold multi‐electrode arrays (MEAs) for organotypic bioelectronic interfaces. The printed MEAs exhibit stable electrochemical performance, cytocompatibility, and functionality in recording and stimulation, including integration with 3D‐printed constructs.
Ernest Cheah +7 more
wiley +1 more source
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Plasmonic nanoloop array antenna
Optics Letters, 2010In this Letter, we create an optical nanoantenna array composed of parasitic plasmonic loops that can enhance radiation characteristics and direct the optical energy successfully. Three metallic loops inspired by the concept of the Yagi-Uda antenna are optimized around the region where they feature high scattering performance to control the radiation ...
Akram, Ahmadi, Hossein, Mosallaei
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Spiral antennas and antenna arrays
2005 IEEE Antennas and Propagation Society International Symposium, 2005The planar square-Archimedean spiral located at the center of a dipole has been demonstrated as a valuable passive antenna element in the upper MM-wave and THz regions between about 100 GHz and 2 THz (Bjarnason, E. et al., Appl. Phys. Lett., vol.85, p.3983, 2004).
R.M. Bilotta, E.B. Brown
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Array-antenna decoupling surfaces for quasi-yagi antenna arrays
2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017A novel decoupling method for a quasi-Yagi antenna array using partial reflection metal strips is proposed. These reflection metal strips, a kind of Array-antenna Decoupling Surface (ADS), can be designed to cancel the unwanted coupled waves among adjacent antenna elements.
Changning Wei, Ke-Li Wu
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2011 International Workshop on Antenna Technology (iWAT), 2011
This paper compares the performances of ultra wideband (UWB) arrays that use sinusoidal waveform for power pattern and ultra-short pulse waveform for energy pattern. In general, antenna arrays cannot have element spacing larger than one wavelength in any plane because the resulting grating lobes absorb much power, which will limit the bandwidth of ...
Dau-Chyrh Chang +2 more
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This paper compares the performances of ultra wideband (UWB) arrays that use sinusoidal waveform for power pattern and ultra-short pulse waveform for energy pattern. In general, antenna arrays cannot have element spacing larger than one wavelength in any plane because the resulting grating lobes absorb much power, which will limit the bandwidth of ...
Dau-Chyrh Chang +2 more
openaire +1 more source
Digest on Antennas and Propagation Society International Symposium, 2003
A multibeam antenna prototype for an ESM system is presented. The antenna is formed by a semicircular array of Vivaldi radiating elements, fed by an RKR microstrip lens. Both the lens and the array are printed on the same dielectric substrate. The antenna operates over one octave frequency band.
M. Sierra +3 more
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A multibeam antenna prototype for an ESM system is presented. The antenna is formed by a semicircular array of Vivaldi radiating elements, fed by an RKR microstrip lens. Both the lens and the array are printed on the same dielectric substrate. The antenna operates over one octave frequency band.
M. Sierra +3 more
openaire +1 more source
IEEE Antennas and Propagation Society International Symposium 1997. Digest, 2002
A grid array antenna is a radiation element of linear polarization. The feed point is located at the left or right edge of the antenna structure. As the frequency changes, the beam direction varies due to the phase change in the current along the grid cells.
H. Nakano, T. Kawano
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A grid array antenna is a radiation element of linear polarization. The feed point is located at the left or right edge of the antenna structure. As the frequency changes, the beam direction varies due to the phase change in the current along the grid cells.
H. Nakano, T. Kawano
openaire +1 more source