Results 191 to 200 of about 7,018,110 (249)

Ferrocene‐Based Self‐Assembled Monolayers Enable Ultra‐High Specific Detectivity in Perovskite Photodetectors

Advanced Materials, EarlyView.
We report perovskite photodetectors with record specific detectivities exceeding 1013 Jones with a novel molecular design strategy to functionalize self‐assembled monolayers (SAMs) with ferrocene (Fc) derivatives. Fc‐SAM‐based devices also exhibit strong operational stability and enable data transmission rates exceeding 1 Mbps in a LiFi system ...
Edoardo Angela, William D. J. Tremlett, Francesco Vanin, William J. O. Rodriguez Kazeem, Zhuoran Qiao, Davide Nodari, Francesco Furlan, Zonglong Zhu, Martyn A. McLachlan, Nicholas J. Long, Nicola Gasparini   +10 more
wiley   +1 more source

Increasing Lipid Nanoparticle mRNA Copy Number Improves Transfection Potency

Advanced Materials, EarlyView.
As lipid nanoparticle (LNP) systems are the leading platform for in vivo nucleic acid delivery, improving transfection potency of these systems is of considerable interest. In this work, we explored a post‐mixing formulation method involving a two‐step buffer exchange that increased the number of mRNA copies within each LNP while reducing the number of
Yao Zhang, Jerry Leung, Judy Cheng, Arash Momeni, Albert Kamanzi, Ariadne Tuckmantel Bido, Suiyang Liao, Emma Kang, Colton Strong, Christian J. Kastrup, Sabrina Leslie, Miffy Hok Yan Cheng, Pieter R. Cullis   +12 more
wiley   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

Bridging Biosensing and Hardware‐Level Data Security With a Conjugated Radical Polymer

Advanced Materials, EarlyView.
A conjugated radical polymer provides two complementary functions within a common material platform: sensitive dopamine biosensing and device‐specific stochastic electrical responses for security. The work demonstrates a materials‐based approach for combining bioelectronic signal acquisition with hardware‐level authentication while maintaining the ...
Hoyeon Lee, Jaehyoung Ko, Dinh Cung Tien Nguyen, Yeong Kwon Kim, Daeun Kim, Soo Jin Cho, Sung Gap Im, Byung Chul Jang, Byung Joon Moon, Yongho Joo   +9 more
wiley   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

Advanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang, Rui Sun, Mingwei Ge, Shehzad Khan, Subhrangsu Mukherjee, Matthew P. Hautzinger, Tianyou Lu, Harald Ade, Pius M. Theiler, Matthew C. Beard, Dali Sun, Mengxia Liu, Jun Liu   +12 more
wiley   +1 more source

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Locally Resonant Sonic Materials

Science, 2000
We have fabricated sonic crystals, based on the idea of localized resonant structures, that exhibit spectral gaps with a lattice constant two orders of magnitude smaller than the relevant wavelength. Disordered composites made from such localized resonant structures behave as a material with effective negative elastic constants and a total wave ...
Liu, Zhengyou, Zhang, Xixiang, Mao, Yiwei, Zhu, Yongyuan, Yang, Zhi Yu, Chan, Che Ting, Sheng, Ping   +6 more
openaire   +3 more sources

Bidirectional Resonant Propulsion and Localization for AUVs

2020 IEEE International Conference on Robotics and Automation (ICRA), 2020
Battery life, reliability, and localization are prominent challenges in the design of autonomous underwater vehicles (AUVs). This work aims to address facets of these challenges using a single system. We describe the design of a bidirectional resonant pump that uses a single electromagnetic voice coil motor (VCM) capable of rotation around a central ...
Thomas W. Secord, Troy R. Louwagie
openaire   +2 more sources

Stochastic resonance in locally optimal detectors

IEEE Transactions on Signal Processing, 2003
The aim of the paper is to show that the nonlinear effect known as stochastic resonance, which corresponds to the improvement of the processing of information by noise, occurs naturally in some detection problems. We illustrate this by studying the problem of detecting a small amplitude sinusoid in non-Gaussian noise.
Zozor, Steeve, Amblard, Pierre-Olivier
openaire   +3 more sources

Localized plasmon resonance

Nanotechnologies in Russia, 2017
A new analytical solution of the Helmholtz equation in spherical coordinates for an infinite homogeneous space, as well as the solution of the boundary problem for a piecewise-homogeneous medium (space divided into homogeneous domains with various dielectric permittivities of the spherical symmetry borders) has been obtained.
N. V. Selina, E. N. Tumayev
openaire   +1 more source

Localization of local anesthetic solution by magnetic resonance imaging

Ophthalmology, 2004
The aim of this study was to examine the distribution of local anesthetic solution by magnetic resonance imaging (MRI) after combined peribulbar and retrobulbar, superomedial retrobulbar, and sub-Tenon's injection in relation to clinical akinesia.Randomized clinical trial.Fifteen patients scheduled for cataract surgery, 5 patients in each group.Five ...
Leila, Niemi-Murola, Kari, Krootila, Riku, Kivisaari, Aki, Kangasmäki, Leena, Kivisaari, Eeva-Liisa, Maunuksela   +5 more
openaire   +2 more sources