Results 81 to 90 of about 224,846 (294)

Absence of unidirectionally propagating surface plasmon-polaritons at nonreciprocal metal-dielectric interfaces

Nature Communications, 2020
The local Drude model predicts that, under certain conditions, surface plasmon polaritons at a metal-dielectric surface have a frequency range where only unidirectional propagation is supported.
Siddharth Buddhiraju, Yu Shi, Alex Song, Casey Wojcik, Momchil Minkov, Ian A. D. Williamson, Avik Dutt, Shanhui Fan   +7 more
doaj   +1 more source

Bifunctional Surfaces With Immobilized Antibodies and Bioactive Peptides Mediate Selective Capture and Proliferation of Endothelial Colony‐Forming Cells

Advanced Healthcare Materials, EarlyView.
A tunable bifunctional surface is developed by combining Fc‐binding peptides and RGD motifs to present oriented antibodies alongside integrin‐mediated signaling. The platform selectively captures endothelial colony‐forming cells while promoting their adhesion and proliferation.
Hugo A. Level, Marc‐Antoine Campeau, Mohamed A. Elkhodiry, Gaétan Laroche, Jean‐François Tanguay, Corinne A. Hoesli   +5 more
wiley   +1 more source

Surface plasmon resonance-induced photoactivation of gold nanoparticles as bactericidal agents against methicillin-resistant Staphylococcus aureus

International Journal of Nanomedicine, 2014
Lucian Mocan,1 Ioana Ilie,2 Cristian Matea,1 Flaviu Tabaran,1 Ersjebet Kalman,1 Cornel Iancu,1 Teodora Mocan3 13rd Surgery Clinic, Department of Nanomedicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania ...
Mocan L, Ilie I, Matea C, Tabaran F, Kalman E, Iancu C, Mocan T   +6 more
doaj  

Surface-plasmon wave at the planar interface of a metal film and a structurally chiral medium

, 2007
The solution of a boundary-value problem formulated for a modified Kretschmann configuration shows that a surface-plasmon wave can be excited at the planar interface of a sufficiently thin metal film and a nondissipative structurally chiral medium ...
Akhlesh Lakhtakia, Bhattacharyya, Bose, Brockman, Chandrasekhar, Charney, Chew, Ferrell, Homola, Jefimovs, Kretschmann, Kroll, Lakhtakia, Lakhtakia, Lakhtakia, Lakhtakia, Lakhtakia, Lakhtakia, Mansuripur, Ohno, Pitarke, Simon, Takahashi, Turbadar, Whites, Zenneck   +25 more
core   +1 more source

Mimicking Surface Plasmons with Structured Surfaces

Science, 2004
Metals such as silver support surface plasmons: electromagnetic surface excitations localized near the surface that originate from the free electrons of the metal. Surface modes are also observed on highly conducting surfaces perforated by holes. We establish a close connection between the two, showing that electromagnetic waves in both materials are ...
Pendry, JB, Martin-Moreno, L, Garcia-Vidal, FJ   +2 more
openaire   +3 more sources

Plasmonic Enhancement of Fluorescence and Protein Dynamics in Living Mammalian Cells

Advanced Materials, EarlyView.
This study demonstrates plasmonic enhancement of the function of fluorescent voltage sensing proteins (genetically encoded voltage indicators, (GEVIs), QuasAr6) in live mammalian cells. Coupling to plasmonic nanoparticles does not just increase fluorescence, but influences the protein photocycle, creating a hybrid sensor with its response speed to ...
Marco Locarno, Qiangrui Dong, Marco Post, Xin Meng, Cristiano Glessi, Nynke Marije Hettema, Nidas Brandsma, Sebbe Blokhuizen, Alejandro Castañeda Garcia, Srividya Ganapathy, Thieme Schmidt, Lars van Roemburg, Bing Xu, Chun‐Ting Cho, Liedewij Laan, Miao‐Ping Chien, Daan Brinks   +16 more
wiley   +1 more source

SURFACE PLASMONS ON A RANDOMLY ROUGH SURFACE

Le Journal de Physique Colloques, 1983
We have studied the dispersion relation for surface plasmons on a randomly rough surface, going beyond the lowest approximation in the surface profile function. The expansion of the surface plasmon dispersion relation in powers of the surface profile function contains an infinite subset of terms that are all of the same order of magnitude as the lowest
Farias, G., Maradudin, A.
openaire   +2 more sources

Bioorthogonal Photoactivation of 2‐Nitrobenzyl Caged Doxorubicin Anticancer Prodrugs on Gold Nanostars

Advanced Materials, EarlyView.
Bioorthogonal chemistry was applied to intracellularly photoactivate Doxorubicin (Dox) using gold nanostars (AuNSt) and near‐infrared (NIR) light. Two prodrugs were used: one photoactivatable, masked with 2‐nitrobenzyl carbamate (proDox1) and another photolabile, masked with 2‐nitrobenzyl diol (proDox2), which was attached to the AuNSt surface.
Juan José Esteve‐Moreno, Andrea Escudero, Oscar Ferreira Silvestre, José Manuel Terrés, Mónica Gorbe, Eva Garrido, Carlos Renero‐Lecuna, Judith Langer, María Alfonso, Javier Ibañez, Félix Sancenón, Roberto Cao‐Milán, Luis M. Liz‐Marzán, Alba García‐Fernández, Andy Hernández‐Montoto, Ramón Martínez‐Máñez   +15 more
wiley   +1 more source

Real-time phase-shift detection of the surface plasmon resonance

, 2010
We investigate a method to directly measure the phase of a laser beam reflected from a metallic film after excitation of surface plasmon polaritons. This method permits real time access to the phase information, it increases the possible speed of data ...
A. Bedard, A. Hemmerich, A.V. Kabashin, B. Ran, C. García-Segundo, C.M. Wu, E. Kretschmann, H. Raether, J. Homola, J.E. Greivenkamp, L. Ricci, M. Weidemüller, S. Shen, S.Y. Wu, T. Esslinger, T. König   +15 more
core   +1 more source

Surface plasmon-assisted microscope [PDF]

Journal of Biomedical Optics, 2018
Total internal reflection microscopy (TIRF) has been a powerful tool in biological research. The most valuable feature of the method has been the ability to image 100- to 200-nm-thick layer of cell features adjacent to a coverslip, such as membrane lipids, membrane receptors, and structures proximal-to-basal membranes.
Borejdo, Julian, Gryczynski, Zygmunt, Fudala, Rafal, Joshi, Chaitanya R., Borgmann, Kathleen, Ghorpade, Anuja, Gryczynski, Ignacy   +6 more
openaire   +2 more sources