Browsing by Author "GOUNKO, IOURI"
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The immobilisation of chiral organocatalysts on magnetic nanoparticles: the support particle cannot always be considered inert.
GOUNKO, IOURI; CONNON, STEPHEN (2011)A systematic study concerning the immobilisation onto magnetic nanoparticles of three useful classes of chiral organocatalyst which rely on a confluence of weak, easily perturbed van der Waals and hydrogen bonding interactions ... -
Improvement of Mechanical Properties of Graphene Oxide / Poly(allylamine) Composites by Chemical Crosslinking
SATTI, AMRO; GOUNKO, IOURI (2010)Graphite oxide was prepared by oxidation of graphite using the Hummers method, and its ultrasonication in water yielded dispersed graphene oxide (GO) sheets. These sheets were then crosslinked with a water soluble polymer, ... -
Influence of intermolecular interactions on spectroscopic characteristics of metal nanoparticles and their composites
PEROVA, TANIA; GOUNKO, IOURI (2014) -
The interaction of QDs with RAW264.7 cells: Nanoparticle quantification, uptake kinetics and immune responses study
GOUNKO, IOURI (2015)Fluorescent semiconductor nanocrystals called quantum dots (QDs) have been proposed as a prominent bio-imaging tool due to their exceptional optical properties. Typically the core size is not greater than 10 nm, thus QDs ... -
Investigations Into the Electrochemical Etching Process of P-Type Silicon Using Ethanol-Surfactant Solutions
PEROVA, TATIANA; GOUNKO, IOURI (AIP Publisher, 2017) -
Investigations on rare-earth doped alumino-silicate xerogel incorporated in micro-channel glass and porous silicon
MOORE, ROBERT; PEROVA, TANIA; GOUNKO, IOURI (2005)Porous materials in general have received great attention from the last century. The development of new porous materials and the preparation of new composites based on porous materials is a subject of interest. The development ... -
Large area quantum dot luminescent solar concentrators for use with dye-sensitised solar cells
EVANS, RACHEL; GOUNKO, IOURI; PURCELL-MILTON, FINN (2018)Luminescent solar concentrators (LSCs) have the potential to significantly contribute to solar energy harvesting strategies in the built environment. For the practical realisation of LSC technology, the ability to create ... -
Microtube cavities from templated filtering: confined optical modes and amplified spontaneous emission
MOORE, ALAN; GOUNKO, IOURI; DONEGAN, JOHN FRANCIS; PEROVA, TANIA; RAKOVICH, YURY (American Institute of Physics, 2006)The authors demonstrate a new route to the fabrication of individual aluminosilicate microtubes that can act as micron-scale optical cylindrical resonators. The microtubes were prepared using a simple vacuum assisted ... -
Mixing of quantum states: A new route to creating optical activity
GOUNKO, IOURI (2016)The ability to induce optical activity in nanoparticles and dynamically control its strength is of great practical importance due to potential applications in various areas, including biochemistry, toxicology, and ... -
Molecular recognition of biomolecules by chiral CdSe quantum dots
GOUNKO, IOURI; PURCELL-MILTON, FINN (2016)Molecular recognition is one of the most important phenomena in Chemistry and Biology. Here we present a new way of enantiomeric molecular recognition using intrinsically chiral semiconductor nanocrystals as assays. Real-time ... -
Multifactorial determinants that govern nanoparticle uptake by human endothelial cells under flow.
GOUNKO, IOURI; PRINA MELLO, ADRIELE; VOLKOV, YURI (2012) -
Multimodal magnetic-plasmonic nanoparticles for biomedical applications
GOUNKO, IOURI (2018) -
Nanoparticles in bioimaging
GOUNKO, IOURI (2016)This Special Issue of Nanomaterials is dedicated to the application of nanoparticulate materials in biological imaging. The issue highlights the rapidly expanding uses and interest in nanomaterials for bioapplications; in ... -
New two in one magnetic fluorescent nanocomposites
VENKATESAN, MUNUSWAMY; GOUNKO, IOURI (SPIE, 2005)Magnetite nanoparticles have been coated by a porphyrin derivative to produce new magnetic materials with fluorescent properties. The magnetic nanoparticles were prepared using two different methods, one based on sol-gel ... -
NMR studies into colloidal stability and magnetic order in fatty acid stabilised aqueous magnetic fluids
GOUNKO, IOURI (2010)We report the physico-chemical characterisation of fatty acid stabilised aqueous magnetic fluids, which are ideal systems for studying the influence of nanoparticle aggregation on the emergent magnetic resonance properties ... -
Off-resonance surface plasmon enhanced spontaneous emission from CdTe quantum dots
BRADLEY, LOUISE; RAKOVICH, YURY; GOUNKO, IOURI (2006)Surface plasmon (SP) enhanced photoluminescence (PL) from CdTe quantum dots (QDs) on monolayers of Au nanoparticles is investigated under both resonant and nonresonant conditions. Enhancement of the QD PL intensity is ... -
Oxygen radical functionalization of boron nitride nanosheets
MAY, PETER; COLEMAN, JONATHAN; MCGOVERN, IGNATIUS; GOUNKO, IOURI; SATTI, AMRO (2012)The covalent chemical functionalization of exfoliated hexagonal boron-nitride nanosheets (BNNSs) is achieved by the solution phase oxygen radical functionalization of boron atoms in the h-BN lattice. This involves a two-step ... -
Photoluminescence of a quantum-dot molecule
GOUNKO, IOURI (2015)The coherent coupling of quantum dots is a sensitive indicator of the energy and phase relaxation processes taking place in the nanostructure components. We formulate a theory of low-temperature, stationary photoluminescence ... -
Photophysical studies of CdTe quantum dots in the presence of a zinc cationic porphyrin
KELLY, JOHN; GOUNKO, IOURI (2012)The photophysical properties of 2.3 nm thioglycolic acid (TGA) coated CdTe quantum dots (QDs) prepared by a reflux method have been studied in the presence of cationic meso-tetrakis(4-Nmethylpyridyl) zinc porphyrin ... -
Plasmon-induced CD response of oligonucleotide-conjugated metal nanoparticles.
GOUNKO, IOURI; GERARD, VALERIE ANNE (2011)Non-chiral metal nanoparticles conjugated with chiral oligonucleotide molecules demonstrated a circular dichroism (CD) at the plasmonic wavelengths due to aggregation effects.