Results 71 to 80 of about 4,703 (235)

Plasmonic Hydrogel Nanocomposites with Combined Optical and Mechanical Properties for Biochemical Sensing

, 2021
Localized surface plasmon resonance (LSPR) and metal-enhanced-fluorescence (MEF)-based optical biosensors exhibit unique properties compared to other sensing devices that can be exploited for the design point-of-care (POC) diagnostic tools [1]. Plasmonic
Carlo Forestiere, Rosalba Moretta, Ilaria Rea, Selene De Martino, Luca De Stefano, Bruno Miranda, Principia Dardano   +6 more
core   +1 more source

Bilateral SERS‐Microneedle Patch for Co‐Diagnosis of Diabetes Mellitus and Tuberculosis Comorbidity

Advanced Science, EarlyView.
Our study introduced a U@mP@Au‐mediated bilateral SERS‐microneedle patch for analyzing glucose levels from ISF and sensitively detecting TB biomarkers from sputum, respectively. This integrated dual‐analyte detecting platform can be used for co‐diagnosis of diabetes mellitus (DM) and tuberculosis (TB) comorbidity, which was demonstrated in ex vivo ...
Xueqin Huang, Lingzhi Chen, Jing Xu, Jiaqi Yu, Shanze Chen, Huaihong Cai, Yanguang Cong, Pinghua Sun, Jiang Pi, Lang Rao, Jierong Chen, Junxia Zheng, Haibo Zhou   +12 more
wiley   +1 more source

Titanate Nanowires as One-Dimensional Hot Spot Generators for Broadband Au–TiO₂ Photocatalysis

Nanomaterials, 2019
Metal−semiconductor nanocomposites have become interesting materials for the development of new photocatalytic hybrids. Along these lines, plasmonic nanoparticles have proven to be particularly efficient photosensitizers due to their ability to ...
Yoel Negrín-Montecelo, Martín Testa-Anta, Laura Marín-Caba, Moisés Pérez-Lorenzo, Verónica Salgueiriño, Miguel A. Correa-Duarte, Miguel Comesaña-Hermo   +6 more
doaj   +1 more source

Metallic nanostructures as electronic billiards for nonlinear terahertz photonics

Physical Review Research, 2023
The optical properties of metallic nanoparticles are most often considered in terms of plasmons, the coupled states of light and quasifree electrons. Confinement of electrons inside the nanostructure leads to another, very different type of resonances ...
Ihar Babushkin, Liping Shi (石理平), Ayhan Demircan, Uwe Morgner, Joachim Herrmann, Anton Husakou   +5 more
doaj   +1 more source

Effect of Plasmonic Au and Ag/Au Nanoparticles and Sodium Citrate on the Optical Properties of Chitin-Based Photonic Nanoarchitectures in Butterfly Wing Scales

Photonics, 2022
Porous butterfly wings with hierarchically organized structures from nanometer to centimeter scales were tested as substrates for carrying plasmonic Au and Ag/Au nanoparticles with potential application in photocatalysis.
Krisztián Kertész, Gábor Piszter, Zsolt Endre Horváth, Dániel Zámbó, András Deák, László Péter Biró   +5 more
doaj   +1 more source

Hyperbolic metamaterials based on quantum-dot plasmon-resonator nanocomposites [PDF]

Optics Express, 2014
We theoretically demonstrate that nanocomposites made of colloidal semiconductor quantum dot monolayers placed between metal nanoparticle monolayers can function as multilayer hyperbolic metamaterials. Depending on the thickness of the spacer between the quantum dot and nanoparticle layers, the effective permittivity tensor of the nanocomposite is ...
Zhokovsky, S. V., Ozel, T., Mutlugun, E., Gaponik, N., Eychmuller, A., Lavrinenko, A. V., Demir, H. V., Gaponenko, S. V.   +7 more
openaire   +5 more sources

Machine Learning‐Assisted Design and Performance Prediction of a Compact Dual‐Band Polarization‐Insensitive THz Metamaterial Absorber for Skin‐Cancer‐Related Refractive‐Index Sensing

Advanced Electronic Materials, EarlyView.
A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun, S. M. Rifatur Rana, Md. Golam Morshed, Imrose Jahan, F. A. Sabbir Ahamed, Md. Jahedul Islam   +5 more
wiley   +1 more source

Preparation and Antitumoral Activity of Au-Based Inorganic-Organometallic Nanocomposites

Frontiers in Chemistry, 2019
The synergy between gelator molecules and nanostructured materials is currently a novel matter of study. The possibility to carefully design the skeleton of the molecular entity as well as the nanostructure's morphological and chemical features offers ...
Mariona Dalmases, Mariona Dalmases, Andrea Pinto, Andrea Pinto, Petra Lippmann, Ingo Ott, Laura Rodríguez, Laura Rodríguez, Albert Figuerola, Albert Figuerola   +9 more
doaj   +1 more source

Effective dielectric constants and spectral density analysis of plasmonic nanocomposites

, 2016
Cermet or ceramic-metal composite coatings promise great potentials in light harvesting, but the complicated composite structure at the nanoscale induces a design challenge to predict their optical properties.
Fang, Nicholas X., Zhang, Tiejun, Chen, Gang, Lu, Jin You, Raza, Aikifa   +4 more
core   +1 more source

Optimized Selenium‐Doped Nanocomposites for Enhanced Polymer Gel Performance in Permeability Reduction

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Excessive water production in mature oil fields necessitates robust shut‐off treatments, yet conventional polymer gels often fail under high‐temperature and high‐salinity conditions. This study aims to enhance gel thermal stability and mechanical strength by incorporating selenium‐doped Ag/AgO–ZnO nanocomposites synthesized via a novel green ...
Fadhil F. Sead, Farag M. A. Altalbawy, M. Sudhakara Reddy, Badri Narayan Sahu, Sridharan Sundharam, Sanjeev Kumar, Atreyi Pramanik, Aseel Smerat, Fatimah Pashtun   +8 more
wiley   +1 more source