Results 111 to 120 of about 16,741 (297)

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

Analysis and Experiment of Equilateral Triangular Uniaxial-Anisotropic Dielectric Resonator Antennas

IEEE Access, 2018
The design procedure of a uniaxial anisotropic equilateral triangular dielectric resonator antenna (ETDRA) is presented for the first time. The uniaxial material is realized by a periodic stack of sheets of two dissimilar materials with different ...
Saeed Fakhte, Iman Aryanian, Ladislau Matekovits   +2 more
doaj   +1 more source

A New Wideband Circularly Polarized Dielectric Resonator Antenna [PDF]

, 2014
A wideband and compact circularly polarized (CP) C-shaped dielectric resonator antenna (DRA) is presented. The proposed C-shaped DR is excited by a simple stripe line connected to a coplanar waveguide (CPW) feeding line.
Danesh, Sh., Ghahferokhi, S. E. A., Kamarudin, M. R., Khalily, M., Mokayef, M.   +4 more
core  

Smart Catheters for Diagnosis, Monitoring, and Therapy

Advanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman, Samiha Ahmed, Majed Othman Althumayri, Megan Guy, Darlenne Chavez Lugo, Frances S. Ligler, George T. Ligler, Rahmi Oklu, Hiroshi Kawahira, Michael J. McShane, Jun Kameoka, Jonathan Bova, Hatice Ceylan Koydemir   +12 more
wiley   +1 more source

A passive beamforming hemispherical liquid antenna using a simple metal ball

IET Microwaves, Antennas & Propagation
The authors propose a novel yet simple way of passive beamforming using a liquid antenna. A hemispherical dielectric resonator antenna filled with a dielectric liquid is considered to realise the fundamental TE111 mode, and a small, weighted metal ball ...
Viswanadh Raviteja Gudivada, Yi Huang, Elliot L. Bennett   +2 more
doaj   +1 more source

Switchable cylindrical dielectric resonator antenna

Electronics Letters, 1996
A switchable cylindrical dielectric resonator antenna operating in four different radiation modes is reported. Two linear polarised, one circular polarised, and a nonradiating mode are implemented. The experimental results of the resonant frequency, boresight axial ratio, gain, unloaded Q-factor, impedance bandwidth and radiation efficiency are ...
G. Drossos, Z. Wu, L.E. Davis
openaire   +1 more source

Advanced 3D Platforms for Modeling CNS Neuroinflammation: Cell Integration, Techniques, and Challenges

Advanced Healthcare Materials, EarlyView.
This review summarizes the roles of key central nervous system cell types, the extracellular matrix, and the blood‐brain barrier in neuroinflammation, and their integration into diverse 3D culture systems. It examines major incorporation strategies, including direct co‐culture, hydrogel encapsulation, transwell migration assays, and bioprinting ...
Emmanuelle D. Aiyegbusi, Julia Di Stefano, Dearbhaile Dooley   +2 more
wiley   +1 more source

Ferroelectric Quantum Dots for Retinomorphic In‐Sensor Computing

Advanced Materials, EarlyView.
This work has provided a protocol for fabricating retinomorphic phototransistors by integrating ferroelectric ligands with quantum dots. The resulting device combines ferroelectricity, optical responsiveness, and low‐power operation to enable adaptive signal amplification and high recognition accuracy under low‐light conditions, while supporting ...
Tingyu Long, Huanyu Zhou, Jaewan Ko, Hongwei Tan, Jaemin Lim, Yanfei Zhao, Daehan Kang, Eojin Yoon, Gyeong‐Tak Go, Somin Kim, Seung‐Woo Lee, Chan‐Yul Park, Hyojun Choi, Hyeran Kim, Hyung Joong Yun, Sung Hyuk Park, Kwan Sik Park, Jeong Woo Park, Mungeun Kim, Yong Soo Cho, Ho Won Jang, Wenqiang Yang, Min Hyuk Park, Wan Ki Bae, Sebastiaan van Dijken, Joona Bang, Tae‐Woo Lee   +26 more
wiley   +1 more source

Fixing and Aligning Methods for Dielectric Resonator Antennas in K Band and Beyond

IEEE Access, 2019
Various conventional and novel fixing strategies for dielectric resonator antennas (DRAs) in K band and beyond are presented and investigated. Their effects on DRAs are studied in depth and explained theoretically through the perturbation theory and ...
Ma Boyuan, J. Pan, Enhao Wang, Yuyue Luo
doaj   +1 more source