Browsing by Author "Gounko, Iouri"
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Adaptable surfactant-mediated method for the preparation of anisotropic metal chalcogenide nanomaterials
Gounko, Iouri; Purcell-Milton, Finn; Perova, Tatiana (2018) -
Amino-Functionalized Mesoporous Silica Nanoparticle-Encapsulated Octahedral Organoruthenium Complex as an Efficient Platform for Combatting Cancer
Gounko, Iouri (American Chemical Society (ACS), 2020)In the process of synthesis of a new drug, as important as the drug itself is the formulation used, because the same compound can present a very different efficacy depending on how it is administered. In this work, we ... -
Cadmium nanoparticles citrullinate cytokeratins within lung epithelial cells: cadmium as a potential cause of citrullination in chronic obstructive pulmonary disease
Volkov, Yuri; Movia, Dania; Gounko, Iouri (2018) -
Cerium oxide nanoparticles anchored onto graphene oxide for the removal of heavy metal ions dissolved in water
Gounko, Iouri (2018)The aim of this study is to investigate the possibility of using cerium oxide (CeO2) nanoparticles (NPs) attached to reduced graphene oxide (rGO) as an alternative adsorbent for cadmium (II), lead (II) and chromium (VI) ... -
Characterising and control of ammonia emission in microbial fuel cells
Shvets, Igor; Gounko, Iouri; Lyons, Michael; Xiao, Liwen; Li, Dunzhu (2020)The serious ammonia (NH3) emission of air-cathode microbial fuel cells (MFCs) was reported but how to control and mitigate the emission hasn’t been well studied. Considering the importance of the issue for the application ... -
Concentration dependence of Forster resonant energy transfer between donor and acceptor nanocrystal quantum dot layers: Effect of donor-donor interactions
Gounko, Iouri; Bradley, Louise (2011)The influences of donor and acceptor concentrations on Forster resonant energy transfer (FRET) in a separated donor-acceptor quantum dot bilayer structure have been investigated. Donor intra-ensemble energy transfer is ... -
Deposition of magnetite nanofilms by pulsed injection MOCVD in a magnetic field
Gounko, Iouri (2018)This report is on the growth of Fe3O4 nanofilms on Al2O3(0001) and MgO(001) substrates with and without the presence of an external magnetic field using a pulsed injection metallorganic chemical vapour deposition (PI MOCVD) ... -
Effect of chiral ligand concentration and binding mode on chiroptical activity of CdSe/CdS quantum dots
Garcia Melchor, Max; Gounko, Iouri (2019)Chiroptically active fluorescent semiconductor nanocrystals, quantum dots (QDs), are of high interest from a theoretical and technological point of view, because they are promising candidates for a range of potential ... -
Effect of metal nanoparticle concentration on localized surface plasmon mediated Förster resonant energy transfer
Bradley, Louise; Gounko, Iouri (2012)The influence of gold nanoparticle concentration on signatures of localized surface plasmon mediated Förster resonant energy transfer is investigated in a quantum dot–gold nanoparticle sandwich structure. At lower gold ... -
Emission Properties of Colloidal Quantum Dots on Polyelectrolyte Multilayers
Bradley, Louise; Gounko, Iouri (2006)We present steady state and time-resolved photoluminescence (PL) characteristics of differently charged CdTe quantum dots (QDs) adsorbed onto a polyelectrolyte (PE) multilayer. The PE multilayer is built up using a ... -
Enantioselective effect of cysteine functionalized mesoporous silica nanoparticles in U87 MG and GM08680 human cells and Staphylococcus aureus bacteria
Kuznetsova, Vera; Gounko, Iouri (2021)Chirality is a fundamental phenomenon in biological systems, since most of the biomolecules and biological components and species are chiral and therefore recognize and respond differently depending on the enantiomer ... -
Energy transfer in colloidal CdTe quantum dot nanoclusters
Bradley, Louise; Gounko, Iouri (2010)Quantum dot (QD) nanoclusters were formed using oppositely charged colloidal CdTe QDs, of two different sizes, mixed in aqueous solutions. The photoluminescence (PL) spectra and time-resolved PL decays show signatures of ... -
Enhanced quantum efficiency in mixed donor-acceptor nanocrystal quantum dot monolayers
Gounko, Iouri; Bradley, Louise (2011)Colloidal nanocrystal quantum dots have attracted interest for use in light-harvesting and emitting devices. One of the key parameters for such applications is the quantum efficiency. Nanocrystal quantum dots exhibit reduced ... -
Enhancing Forster nonradiative energy transfer via plasmon interaction
Gounko, Iouri; Bradley, Louise (2016) -
Experimental and Theoretical Investigation of the Distance Dependence of Localized Surface Plasmon Coupled Forster Resonance Energy Transfer
Gounko, Iouri; Bradley, Louise (2014)The distance dependence of localized surface plasmon (LSP) coupled Förster resonance energy transfer (FRET) is experimentally and theoretically investigated using a trilayer structure composed of separated monolayers of ... -
FRET in self-assembled CdTe quantum dot nanoclusters
Gounko, Iouri; Bradley, Louise (IEEE Computer Society Press, 2010)Colloidal CdTe quantum dots (QDs) with oppositely charged ligand shells were used to form quantum dot nanoclusters in solution. The signatures of Forster non-radiative energy transfer in the photoluminescence and time-resolved ... -
Influence of intra-ensemble energy transfer on the properties of nanocrystal quantum dot structures and devices
Gounko, Iouri; Bradley, Louise (2010)The impact of intra-ensemble Forster resonant energy transfer (FRET) on the optical properties of monodispersed quantum dot (QD) monolayers and a donor/acceptor FRET bilayer structure are presented. The QD structures are ... -
Influence of localised surface plasmons on energy transfer between quantum dots
Gounko, Iouri; Bradley, Louise (IEEE Computer Society, 2010)The effects of surface plasmons (SPs) on Forster resonant energy transfer (FRET) in colloidal quantum dot (QD) structures have been investigated. CdTe QDs of two different sizes acted as donors and acceptors in a mixed ... -
Influence of quantum dot concentration on F?rster resonant energy transfer in monodispersed nanocrystal quantum dot monolayers
Gounko, Iouri; Bradley, Louise (2010)The quantum dot (QD) concentration dependence of the optical properties of QD monolayers is shown to be dominated by Forster resonant energy transfer (FRET) from smaller to larger QDs in the ensemble. With increasing QD ... -
Large Energy Transfer Distance to a plane of Gold Nanoparticles
Gounko, Iouri; Bradley, Louise (2012)The quenching of emission in proximity to metallic surfaces via non-radiative energy transfer is studied for sensing applications. It can also be used for the measurement of distances on the nanoscale. We report on energy ...