Results 51 to 60 of about 34,430 (280)
Theoretical analysis of bimetallic nanorod dimer biosensors for label-free molecule detection
AIP Advances, 2018 In this work, we theoretically analyze a gold (Au) core within silver (Ag) shell (Au@Ag) nanorod dimer biosensor for label-free molecule detection. The incident light on an Au@Ag nanorod strongly couples to localized surface plasmon modes, especially ...
Avijit Das +1 more
doaj +1 more source
The 'nanobig rods' class of gold nanorods: optimized dimensions for improved in vivo therapeutic and imaging efficacy [PDF]
, 2013 Currently, gold nanorods can be synthesized in a wide range of sizes. However, for intended biological applications gold nanorods with approximate dimensions 50 nm x 15 nm are used.
Koning, Gerben A. +3 more
core +3 more sources
Simple analytical expression for the peak-frequency shifts of plasmonic resonances for sensing
, 2015 We derive a closed-form expression that accurately predicts the peak frequency-shift and broadening induced by tiny perturbations of plasmonic nanoresonators without critically relying on repeated electrodynamic simulations of the spectral response of ...
Giessen, Harald +2 more
core +2 more sources
Surface excitonic emission and quenching effects in ZnO nanowire/nanowall systems: limiting effects on device potential. [PDF]
, 2006 We report ZnO nanowire/nanowall growth using a two-step vapour phase transport method on a-plane sapphire. X-ray diffraction and scanning electron microscopy data establish that the nanostructures are vertically well-aligned with c-axis normal to the ...
A. Meaney +7 more
core +1 more source
Effective PEGylation of gold nanorods
Nanoscale, 2016 Standard procedures to coat gold nanorods (AuNR) with poly(ethylene glycol) (PEG)-based ligands are not reliable and high PEG-grafting densities are not achieved. In this work, the ligand exchange of AuNR with PEGMUA, a tailored PEG-ligand bearing a C10 alkylene spacer, is studied. PEGMUA provides AuNR with very high stability against oxidative etching
F, Schulz +5 more
openaire +3 more sources
Heterophase fcc-2H-fcc gold nanorods [PDF]
Nature Communications, 2020 AbstractThe crystal phase-based heterostructures of noble metal nanomaterials are of great research interest for various applications, such as plasmonics and catalysis. However, the synthesis of unusual crystal phases of noble metals still remains a great challenge, making the construction of heterophase noble metal nanostructures difficult.
Zhanxi Fan +18 more
openaire +5 more sources
Atomic-scale confinement of optical fields
, 2012 In the presence of matter there is no fundamental limit preventing confinement of visible light even down to atomic scales. Achieving such confinement and the corresponding intensity enhancement inevitably requires simultaneous control over atomic-scale ...
Atay T. +60 more
core +1 more source
Nano Select, 2021 Targeted theranostics can improve benefits of therapeutics or imaging probes by minimizing the dose and by selective delivery to a target site. For this study, a gold nanorod (AuNR)‐based nanohybrid was designed for efficient cancer treatment and ...
Herlan Setiawan +4 more
doaj +1 more source
Plasmonic nano-resonator enhanced one-photon luminescence from single gold nanorods
, 2015 Strong Stokes and anti-Stokes one-photon luminescence from single gold nanorods is measured in experiments. It is found that the intensity and polarization of the Stokes and anti-Stokes emissions are in strong correlation.
Cheng, Yuqing +5 more
core +1 more source
Deterministic assembly of linear gold nanorod chains as a platform for nanoscale applications [PDF]
, 2013 We demonstrate a method to assemble gold nanorods highly deterministically into a chain formation by means of directed capillary assembly. This way we achieved straight chains consisting of end-to-end aligned gold nanorods assembled in one specific ...
Billardon, Guillaume +8 more
core +1 more source