The nature of "hot spots" in surface-enhanced Raman scattering (SERS) and the novel fabrication of Ag thin films for efficient SERS measurements are the main focus of this review. By using 4-aminobenzenthiol or 1,4-phenylenediisocyanide molecules we can characterize the nanogap formed by a metal nanoparticle and a flat metal substrate, or the gap between two spherical metal nanoparticles. These...

A family of silica-supported, magnetite nanoparticle catalysts was synthesised and investigated for continuous-flow acetic acid ketonisation as a model pyrolysis bio-oil upgrading reaction. The physico-chemical properties of Fe3O4/SiO2 catalysts were characterised by using high-resolution transmission electron microscopy, X-ray absorption spectroscopy, X-ray photo-electron spectroscopy, diffuse...

1Leadership Computing Facility, Argonne National Laboratory, Argonne, IL 60439, USA 2Center for Individual Nanoparticle Functionality, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark 3Center for Atomic-scale Materials Design, Department of Physics, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark 4Nano-bio Spectroscopy Group and ETSF Scientific ...

The use of stem cells to support tissue repair is facilitated by loading of the therapeutic cells with magnetic nanoparticles (MNPs) enabling magnetic tracking and targeting. Current methods for magnetizing cells use artificial MNPs and have disadvantages of variable uptake, cellular cytotoxicity and loss of nanoparticles on cell division. Here we demonstrate a transgenic approach to magnetize ...

Thermal ablation is achieved by delivering heat directly to tissue through a minimally invasive applicator. The therapy requires temperature control between 50–100 °C since the mortality of tumor connected with thermal dosimetry. Existing monitoring techniques have limitations such as single-point monitoring, require costly equipment, and expose patients X-ray radiation. Therefore, it important...

Background: Although microemulsion-based nanoparticles (MEs) may be useful for drug delivery or scavenging, these benefits must be balanced against potential nanotoxicological effects in biological tissue (bio-nano interface). We investigated the actions of assembled MEs and their individual components at the bio-nano interface of thrombosis and hemolysis in human blood. Methods: Oil-in-water M...

We report on the experimental observation of curved plasmonic beam, a hook (PH), for surface plasmon-polariton (SPP) waves. The SPP PH effect could be obtained with cuboid particle broken shape symmetry fabricated relatively simple routine. This has pronounced difference fabrication structure generation Airy SPPs, which require complex techniques to compensate wave vector mismatch. confirmed ex...

In the recent decades, polymers are widely used as biomaterials due to their favourable properties such good biocompatibility, easy design and preparation, structural varieties interesting bio-mimetic character. The use of biodegradable polymeric nanoparticles (NPs) for controlled drug delivery has shown significant therapeutic potential. Concurrently, targeted technologies becoming increasingl...

Semiconductor nanowires and other semiconducting nanoscale materials configured as field-effect transistors have been studied extensively as biological/chemical (bio/chem) sensors. These nanomaterials have demonstrated high-sensitivity from one- and two-dimensional sensors, although the realization of the ultimate pointlike detector has not been achieved. In this regard, nanoscale p-n diodes ar...