Results 141 to 150 of about 136,494 (314)

Atomic-precision control of plasmon-induced single-molecule switching in a metal–semiconductor nanojunction

open access: yesNature Communications
Atomic-scale control of photochemistry facilitates extreme miniaturisation of optoelectronic devices. Localised surface plasmons, which provide strong confinement and enhancement of electromagnetic fields at the nanoscale, secure a route to achieve sub ...
Youngwook Park   +5 more
doaj   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

open access: yesAdvanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel   +3 more
wiley   +1 more source

Surface-Plasmon-Induced Ammonia Decomposition on Copper: Excited-State Reaction Pathways Revealed by Embedded Correlated Wavefunction Theory

open access: yes, 2019
Ammonia is a promising hydrogen storage medium; however, its decomposition via conventional thermal catalysis requires a significant amount of thermal energy input in order to overcome the reaction barriers. Here, we use embedded correlated wavefunction (
Emily A. Carter (1283184)   +1 more
core   +1 more source

A Microbial Lipid‐ATP Synthase Axis Fuels NK Cell Antitumor Activity

open access: yesAdvanced Science, EarlyView.
This study focuses on the mechanism by which gut microbiota‐derived outer membrane vesicles (OMVs) regulate NK cell antitumor activity. B. intestinalis is identified to decrease extra‐intestinal tumor growth via its OMVs enriched in sphingosine (SP).
Kaiyuan Yu   +16 more
wiley   +1 more source

ABSTRACT OF THESIS OPTIMIZATION OF A DUAL-MODE

open access: yes, 2014
Surface plasmon waves are TM polarized charge density waves that propagate at the interface of two media with real dielectric constants of opposite sign (i.e. liquid dielectric and certain metals).
Prasanth Bathae Kumaresh   +2 more
core  

Electrical Generation of Surface Plasmon Polaritons in Plasmonic Heterostructures

open access: yesPhysical Review Letters
Surface plasmon polaritons (SPPs) can be understood as two-dimensional light confined to a conductor-dielectric interface via plasmonic excitations. While low-energy SPPs behave similarly to photons, higher-frequency SPPs resemble surface plasmons. Electrically generating mid-range SPPs is particularly challenging because it requires compensating for ...
openaire   +3 more sources

Quantitative Mass Spectrometry‐Based Biodistribution of Monoclonal Antibodies: An Alternative to Radio‐Biodistribution

open access: yesAdvanced Science, EarlyView.
Monoclonal antibodies are powerful anticancer therapeutics targeting tumor‐associated antigens. Mass spectrometry enables precise and accurate quantification of mAbs in tumor plasma and healthy organs. Unlike ligand binding assay and radioactivity, mass spectrometry does not suffer from matrix effects and labelling artefacts while facilitating method ...
Domenico Ravazza   +9 more
wiley   +1 more source

Coupled surface-plasmon-like modes between metamaterial

open access: yes, 2007
Perfectly conducting metals may be structured with holes to make metamaterials that support surface-plasmon-like modes at microwave frequencies. Results are presented for Fabry-Pérot-like standing wave resonances formed from coupled surface-plasmon-like ...
Matthew J. Lockyear (21815027)   +2 more
core  

S100A14 in Tumor‐Derived EVs Targets PIAS3 to Reprogram Astrocytes and Induce Immunosuppressive Microenvironment Promoting Brain Metastasis and Germacrone Reversal Effect

open access: yesAdvanced Science, EarlyView.
This study identifies S100A14 in tumor‐derived exosomes as a key driver of brain metastasis. S100A14 targets PIAS3 in astrocytes, activating STAT3 signaling and promoting immunosuppressive MDSCs recruitment via chemokine secretion. Germacrone, a natural compound, binds S100A14 to disrupt this axis, effectively inhibiting brain metastasis with low ...
Qian Feng   +13 more
wiley   +1 more source

Overview of molecular interactions using Biacore

open access: yes, 2012
Podeu consultar el llibre complet a: http://hdl.handle.net/2445/32166Surface Plasmon Resonance (SPR) technology is a powerful tool for studying a wide range of different putative interactions. This kind of optical biosensors allow to obtain (in real time
Taulés i Marín, Marta   +1 more
core  

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