Dr Andrei SapelkinSenior LecturerEmail: a.sapelkin@qmul.ac.ukTelephone: 020 7882 3414Room Number: G.O. Jones Building, Room 124ResearchPublicationsSupervisionPerformanceResearchResearch Interests:My research interests are in the atomic structure, interatomic interactions, optical and electronic properties of non-periodic materials with particular focus on ultra-small nanoparticles and quantum dots (QDs). A part of my work includes investigating materials under a variety of in situ perturbations including high pressure, high and low temperatures and laser excitation. My research activities include both experimental and computational components. On the experimental side I extensively use x-ray absorption spectroscopy and scattering, hence my long-standing involvement with large scale facilities such as synchrotron radiation and neutron sources. I have also been utilising and developing a selection of Raman scattering, photoluminescence and spectral imaging methods for materials characterisation. On the computational side I utilise a selection of specialised codes (e.g. FEFF, FDMES, Excurve) for electronic structure, x-ray scattering and absorption calculations using ab initio and DFT codes for modelling x-ray and electron spectroscopies and materials properties. Another long-standing interest of mine is in the bio-applications of nanoscale system and to sustain this activity I maintain extensive collaborations with chemist, biologists and materials scientists. Examples of research funding:2021-2024: Diamond/QMUL PhD studentship, £77K, PI 2019-2022: Royal Society, "Local correlations across length scales in systems with large disorder” £11K, PI 2019: British Council, “Collective dynamics and pair correlations in atomic and colloidal systems” £50K, PI 2016-2017: QMUL SFIF, “High Resolution Raman System”, £200K, PI 2012-2015: BBSRC, "Targeted drug delivery to neurons and glia using light-and field-sensitive microcapsules", £442K, Co-PI 2010-2013: SEPnet, “Multimodal approach to structural effects in ferromagnetic Nanomaterials”, SEPnet, £49K, PI 2009-2011: EPSRC, “Tunable Raman spectroscopy of carbon nanotubes under high pressure”, £231K, Co-I 2004-2006: EPSRC, “Bi-directional interfacing of electronics and cultured neurons”, £208K, PI Publications Libet PA, Yakovlev EV, Kryuchkov NP et al. (2024). Tunable colloidal spinners: Active chirality and hydrodynamic interactions governed by rotating external electric fields. nameOfConference DOI: 10.1063/5.0210859 QMRO: qmroHref Nguyen KG, Huš M, Baragau I et al. (2024). Engineering Nitrogen‐Doped Carbon Quantum Dots: Tailoring Optical and Chemical Properties through Selection of Nitrogen Precursors. nameOfConference DOI: 10.1002/smll.202310587 QMRO: qmroHref Li Q, Zhao Q, Pedersen A et al. (2024). Investigating the effect of Fe–N 5 configuration in the oxygen reduction reaction using N-heterocycle functionalized carbon nanotubes. nameOfConference DOI: 10.1039/d4ta05483k QMRO: https://qmro.qmul.ac.uk/xmlui/handle/123456789/99952 Haddad L, Gianolio D, Dunstan DJ et al. (2024). Quantifying intuition: Bayesian approach to figures of merit in EXAFS analysis of magic size clusters. nameOfConference DOI: 10.1039/d3nr05110b QMRO: qmroHref Tan L, Sapelkin AV, Misquitta AJ et al. (2022). High-pressure neutron diffraction study of magnetite, Fe3O4, nanoparticles. nameOfConference DOI: 10.1063/5.0085164 QMRO: qmroHref Huang D, Haddad L, Rahman F et al. (2022). Engineering a DNA origami mediated multicolour quantum dot platform for sub-diffraction spectral separation imaging. nameOfConference DOI: 10.1039/d2ra04316e QMRO: qmroHref Yakovlev EV, Kryuchkov NP, Korsakova SA et al. (2022). 2D colloids in rotating electric fields: A laboratory of strong tunable three-body interactions. nameOfConference DOI: 10.1016/j.jcis.2021.09.116 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/74582 Kryuchkov NP, Dmitryuk NA, Li W et al. (publicationYear). Mean-field model of melting in superheated crystals based on a single experimentally measurable order parameter. nameOfConference DOI: 10.1038/s41598-021-97124-7 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/74581 Mistryukova LA, Kryuchkov NP, Mantsevich VN et al. (2021). Interpolation method for crystals with many-body interactions. nameOfConference DOI: 10.1103/physrevb.104.054108 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/74062 Demina PA, Sindeeva OA, Abramova AM et al. (2021). Fluorescent Convertible Capsule Coding Systems for Individual Cell Labeling and Tracking. nameOfConference DOI: 10.1021/acsami.1c02767 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/74063 Tsyupka DV, Mordovina EA, Sindeeva OA et al. (2021). High-fluorescent product of folic acid photodegradation: Optical properties and cell effect. nameOfConference DOI: 10.1016/j.jphotochem.2020.113045 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/70298 Abramova AM, Kokorina AA, Sindeeva OA et al. (publicationYear). Molecular nature of breakdown of the folic acid under hydrothermal treatment: a combined experimental and DFT study. nameOfConference DOI: 10.1038/s41598-020-76311-y QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/73462 Kryuchkov NP, Mistryukova LA, Sapelkin AV et al. (2020). Universal Effect of Excitation Dispersion on the Heat Capacity and Gapped States in Fluids. nameOfConference DOI: 10.1103/physrevlett.125.125501 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/67263 Kryuchkov NP, Mistryukova LA, Sapelkin AV et al. (2020). Strange attractors induced by melting in systems with nonreciprocal effective interactions. nameOfConference DOI: 10.1103/physreve.101.063205 QMRO: qmroHref Sindeeva OA, Kopach O, Kurochkin MA et al. (publicationYear). Polylactic Acid-Based Patterned Matrixes for Site-Specific Delivery of Neuropeptides On-Demand: Functional NGF Effects on Human Neuronal Cells. nameOfConference DOI: 10.3389/fbioe.2020.00497 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/64402 Shpuntova DV, Kokorina AA, Kostritskiy AY et al. (2020). Fluorophore from citric acid and 1,2- ethylenediamine: synthesis and structure research. Saratov Fall Meeting 2019: Optical and Nano-Technologies for Biology and Medicine DOI: 10.1117/12.2564291 QMRO: qmroHref Amoroso G, Sapelkin A, Ye Q et al. (2020). DNA-Driven Dynamic Assembly of MoS2 Nanosheets. nameOfConference DOI: 10.1039/c9fd00118b QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/66490 Yakovlev EV, Kryuchkov NP, Ovcharov PV et al. (2020). Direct Experimental Evidence of Longitudinal and Transverse Mode Hybridization and Anticrossing in Simple Model Fluids.. nameOfConference DOI: 10.1021/acs.jpclett.9b03568 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/62747 Kurochkin MA, Sindeeva OA, Brodovskaya EP et al. (2020). Laser-triggered drug release from polymeric 3-D micro-structured films via optical fibers. nameOfConference DOI: 10.1016/j.msec.2020.110664 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/62822 Liu Y, Tan L, Cibin G et al. (2020). Analysis of the atomic structure of CdS magic-size clusters by X-ray absorption spectroscopy. nameOfConference DOI: 10.1039/d0nr05186a QMRO: qmroHref Luo H, Liu Y, Dimitrov SD et al. (2020). Pt single-atoms supported on nitrogen-doped carbon dots for highly efficient photocatalytic hydrogen generation. nameOfConference DOI: 10.1039/d0ta04431h QMRO: qmroHref Ermakov AV, Kudryavtseva VL, Demina PA et al. (2020). Site-specific release of reactive oxygen species from ordered arrays of microchambers based on polylactic acid and carbon nanodots. nameOfConference DOI: 10.1039/d0tb01148g QMRO: qmroHref Papaioannou N, Titirici MM, Sapelkin A (2019). Investigating the Effect of Reaction Time on Carbon Dot Formation, Structure, and Optical Properties. nameOfConference DOI: 10.1021/acsomega.9b01798 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/62393 Tan L, Pickard CJ, Yu K et al. (2019). Structures of CdSe and CdS Nanoclusters from Ab Initio Random Structure Searching. nameOfConference DOI: 10.1021/acs.jpcc.9b05763 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/61980 Tan L, Misquitta AJ, Sapelkin A et al. (2019). X-ray total scattering study of magic-size clusters and quantum dots of cadmium sulphide.. nameOfConference DOI: 10.1039/c9nr06355b QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/66116 Kokorina AA, Sapelkin AV, Sukhorukov GB et al. (2019). Luminescent carbon nanoparticles separation and purification. nameOfConference DOI: 10.1016/j.cis.2019.102043 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/61605 Kokorina AA, Bakal AA, Shpuntova DV et al. (2019). Gel electrophoresis separation and origins of light emission in fluorophores prepared from citric acid and ethylenediamine. nameOfConference DOI: 10.1038/s41598-019-50922-6 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/62746 Luo H, Papaioannou N, Salvadori E et al. (2019). Cover Feature: Manipulating the Optical Properties of Carbon Dots by Fine‐Tuning their Structural Features (ChemSusChem 19/2019). nameOfConference DOI: 10.1002/cssc.201902519 QMRO: qmroHref Yakovlev EV, Chaudhuri M, Kryuchkov NP et al. (2019). Experimental validation of interpolation method for pair correlations in model crystals.. nameOfConference DOI: 10.1063/1.5116176 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/61604 Luo H, Papaioannou N, Salvadori E et al. (2019). Manipulating the optical properties of carbon dots via fine tuning their structural features.. nameOfConference DOI: 10.1002/cssc.201901795 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/59620 Yakovlev EV, Kryuchkov NP, Ovcharov PV et al. (2019). Defect-governed double-step activation and directed flame fronts. nameOfConference DOI: 10.1103/PhysRevE.100.023203 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/59844 Pillet G, Sapelkin A, Bacsa W et al. (2019). Size-controlled graphene-based materials prepared by annealing of pitch-based cokes: G band phonon line broadening effects due to high pressure, crystallite size, and merging with D' band. nameOfConference DOI: 10.1002/jrs.5723 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/65360 Kokorina AA, Bakal AA, Sapelkin AV et al. (2019). High luminescent fluorophore synthesized at atmospheric pressure from citric acid and ethylenediamine. Saratov Fall Meeting 2018: Computations and Data Analysis: from Nanoscale Tools to Brain Functions DOI: 10.1117/12.2521395 QMRO: qmroHref Vostrikova AM, Kokorina AA, Mitrophanova AN et al. (2019). One step hydrothermal functionalization of gold nanoparticles with folic acid. nameOfConference DOI: 10.1016/j.colsurfb.2019.05.072 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/58783 Ermakov AV, Prikhozhdenko ES, Demina PA et al. (2019). Composite multilayer films based on polyelectrolytes and in situ-formed carbon nanostructures with enhanced photoluminescence and conductivity properties. nameOfConference DOI: 10.1002/app.47718 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/57588 Karatutlu A, Boi FS, Wilson RM et al. (2018). A Bean‐Like Formation of Germanium Nanoparticles Inside CNTs by the Subsequent Operation of Colloidal Synthesis and Catalytic Chemical Vapor Deposition Methods. nameOfConference DOI: 10.1002/crat.201800123 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/53927 Sindeeva OA, Prikhozhdenko ES, Bratashov DN et al. (2018). Carbon dot aggregates as an alternative to gold nanoparticles for the laser-induced opening of microchamber arrays.. nameOfConference DOI: 10.1039/c8sm01714j QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/50403 Prikhozhdenko ES, Bratashov DN, Mitrofanova AN et al. (2018). Solvothermal synthesis of hydrophobic carbon dots in reversed micelles. nameOfConference DOI: 10.1007/s11051-018-4336-x QMRO: qmroHref Vostrikova AV, Prikhozhdenko ES, Mayorova OA et al. (publicationYear). Thermal carbonization in nanoscale reactors: controlled formation of carbon nanodots inside porous CaCO3 microparticles. nameOfConference DOI: 10.1038/s41598-018-27488-w QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/44269 Tan L, Misquitta AJ, Sapelkin A et al. (2018). X-ray total scattering study of regular and magic-size nanoclusters of cadmium sulphide. nameOfConference DOI: 10.48550/arxiv.1806.03274 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/71299 Brazhkin VV, Prescher C, Fomin YD et al. (2018). Comment on "Behavior of Supercritical Fluids Across the Frenkel Line".. nameOfConference DOI: 10.1021/acs.jpcb.7b11359 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/38284 Karatutlu A, Patil B, Seker İ et al. (2018). Structural, Optical, Electrical and Electrocatalytic Activity Properties Of Luminescent Organic Carbon Quantum Dots. nameOfConference DOI: 10.1002/slct.201800714 QMRO: qmroHref Vostrikova AM, Nikolaeva AN, Bakal AA et al. (2018). Effect of spatial restriction on the photoluminescent properties of carbon nanomaterials. Saratov Fall Meeting 2017: Optical Technologies in Biophysics and Medicine XIX DOI: 10.1117/12.2315149 QMRO: qmroHref Kokorina AA, Goryacheva IY, Sapelkin AV et al. (2018). One-step microwave synthesis of photoluminescent carbon nanoparticles from sodium dextran sulfate water solution. Saratov Fall Meeting 2017: Optical Technologies in Biophysics and Medicine XIX DOI: 10.1117/12.2312721 QMRO: qmroHref Papaioannou N, Marinovic A, Yoshizawa N et al. (publicationYear). Structure and solvents effects on the optical properties of sugar-derived carbon nanodots. nameOfConference DOI: 10.1038/s41598-018-25012-8 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/44276 ZHANG D, PAPAIOANNOU N, David NM et al. (2018). Photoelectrochemical response of carbon dots (CDs) derived from chitosan and their use in electrochemical imaging. nameOfConference DOI: 10.1039/c7mh00784a QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/33648 Kopach O, Zheng K, Dong L et al. (2018). Nano-engineered microcapsules boost the treatment of persistent pain. nameOfConference DOI: 10.1080/10717544.2018.1431981 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/34449 Karatutlu A, Barhoum A, Sapelkin A (2018). Chapter 1 Liquid-phase synthesis of nanoparticles and nanostructured materials. nameOfConference DOI: 10.1016/b978-0-323-51254-1.00001-4 QMRO: qmroHref Karatutlu A, Barhoum A, Sapelkin A (2018). Chapter 20 Theories of nanoparticle and nanostructure formation in liquid phase. nameOfConference DOI: 10.1016/b978-0-323-51254-1.00020-8 QMRO: qmroHref Kokorina AA, Prikhozhdenko ES, Sukhorukov GB et al. (2017). Luminescent carbon nanoparticles: synthesis, methods of investigation, applications. nameOfConference DOI: 10.1070/rcr4751 QMRO: qmroHref Kokorina AA, Prikhozhdenko ES, Tarakina NV et al. (2017). Dispersion of optical and structural properties in gel column separated carbon nanoparticles. nameOfConference DOI: 10.1016/j.carbon.2017.11.039 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/31242 Smith D, Hakeem MA, Parisiades P et al. (2017). Crossover between liquidlike and gaslike behavior in CH4 at 400 K. nameOfConference DOI: 10.1103/PhysRevE.96.052113 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/28980 SUKHORUKOV G, Goryacheva I, Sapelkin A (2017). Carbon nanodots: mechanisms of photoluminescence and principles of applicationReview. nameOfConference DOI: 10.1016/j.trac.2017.02.012 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/20819 Song M, Karatutlu A, Ali I et al. (2017). Spectroscopic super-resolution fluorescence cell imaging using ultra-small Ge quantum dots.. nameOfConference DOI: 10.1364/OE.25.004240 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/22593 Attanzio A, Sapelkin A, Gesuele F et al. (2017). Carbon Nanotube-Quantum Dot Nanohybrids: Coupling with Single Particle Control in Aqueous Solution. nameOfConference DOI: 10.1002/smll.201603042 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/19134 Zhang Y, Ersoy O, Karatutlu A et al. (2016). Local structure of amorphous and nanoscale systems by numerical XANES calculations. nameOfConference DOI: 10.1016/j.jnoncrysol.2016.07.001 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/15715 Gao H, Sapelkin AV, Titirici MM et al. (2016). In Situ Synthesis of Fluorescent Carbon Dots/Polyelectrolyte Nanocomposite Microcapsules with Reduced Permeability and Ultrasound Sensitivity.. nameOfConference DOI: 10.1021/acsnano.6b05088 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/16018 Sun YW, Hernández I, González J et al. (2016). Significance of Bundling Effects on Carbon Nanotubes’ Response to Hydrostatic Compression. nameOfConference DOI: 10.1021/acs.jpcc.5b09082 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/11590 Zhang Y, Ersoy O, Karatutlu A et al. (2016). Local structure of Ge quantum dots determined by combined numerical analysis of EXAFS and XANES data. nameOfConference DOI: 10.1107/s160057751501913x QMRO: qmroHref Huang D, Keseroglu K, Garrido S et al. (2016). Single-molecule investigations via DNA nanostructures: A cell adhesion study. nameOfConference DOI: doi QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/66388 Karatutlu A, Little W, Ersoy O et al. (2015). Laser-induced particle size tuning and structural transformations in germanium nanoparticles prepared by stain etching and colloidal synthesis route. nameOfConference DOI: 10.1063/1.4939066 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/17736 Corsini NRC, Zhang Y, Little WR et al. (2015). Pressure-Induced Amorphization and a New High Density Amorphous Metallic Phase in Matrix-Free Ge Nanoparticles. nameOfConference DOI: 10.1021/acs.nanolett.5b02627 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/15716 Chen S, Carraro G, Barreca D et al. (2015). Aerosol assisted chemical vapour deposition of Ga-doped ZnO films for energy efficient glazing: effects of doping concentration on the film growth behaviour and opto-electronic properties. nameOfConference DOI: 10.1039/c5ta02163d QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/9999 Chen S, McLachlan M, Sapelkin A et al. (2015). Aerosol assisted chemical vapour deposition of transparent conductive ZnO thin films with hexagonal microplate surfaces and ultrahigh haze values. nameOfConference DOI: 10.1039/c5ta06029j QMRO: qmroHref Zhang Y, Karatutlu A, Ersoy O et al. (2015). Structure and effects of annealing in colloidal matrix‐free Ge quantum dots. nameOfConference DOI: 10.1107/s1600577514022486 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/10000 Karatutlu A, Song M, Wheeler AP et al. (2015). Synthesis and structure of free-standing germanium quantum dots and their application in live cell imaging. nameOfConference DOI: 10.1039/c5ra01529d QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/17742 Karatutlu A, Karatutlu A, Ersoy O et al. (2015). Systematic annealing of free-standing ge nanoparticles in H2/Ar (%5/%95) gas medium. nameOfConference DOI: doi QMRO: qmroHref Little W, Karatutlu A, Bolmatov D et al. (publicationYear). Structural origin of light emission in germanium quantum dots. nameOfConference DOI: 10.1038/srep07372 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/10001 Zhang Y, Karatutlu A, Ersoy O et al. (2014). Looking into the structure of Ge nano-crystals through combined Diffraction/XAFS. nameOfConference DOI: 10.1107/s2053273314084666 QMRO: qmroHref Widdicombe AT, Ravindrarajah P, Sapelkin A et al. (2014). Measurement of bitumen viscosity in a room-temperature drop experiment: student education, public outreach and modern science in one. nameOfConference DOI: 10.1088/0031-9120/49/4/406 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/13882 Sun YW, Hernández I, Ghandour AJ et al. (2014). Resonance Raman spectroscopy of carbon nanotubes: Pressure effects on G-mode. nameOfConference DOI: 10.1080/08957959.2013.878714 QMRO: qmroHref Zhang Y, Karatutlu A, Ersoy O et al. (2014). Looking into the structure of Ge nano-crystals through combined Diffraction/XAFS. nameOfConference DOI: 10.1107/S2053273314084666 QMRO: qmroHref Ye HQ, Li Z, Peng Y et al. (2014). Organo-erbium systems for optical amplification at telecommunications wavelengths. nameOfConference DOI: 10.1038/NMAT3910 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/9972 Pavlenko E, Boyer F, Puech P et al. (2014). Origin of mechanical modifications in poly (ether ether ketone)/carbon nanotube composite. nameOfConference DOI: 10.1063/1.4883299 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/10757 Sun YW, Hernández I, Ghandour AJ et al. (2014). Resonance Raman spectroscopy of carbon nanotubes: pressure effects on G-mode. nameOfConference DOI: 10.1080/08957959.2013.878714 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/6629 Pavlov AM, De Geest BG, Louage B et al. (2013). Magnetically engineered microcapsules as intracellular anchors for remote control over cellular mobility.. nameOfConference DOI: 10.1002/adma.201303287 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/6633 Hatch SM, Sapelkin A, Cibin G et al. (2013). Investigating the source of deep-level photoluminescence in ZnO nanorods using optically detected x-ray absorption spectroscopy. nameOfConference DOI: 10.1063/1.4824810 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/10310 SAPELKIN A, Bolmatov D, Karatutlu A et al. (2013). Structural Origin of Light Emission in Germanium Quantum Dots. nameOfConference DOI: doi QMRO: qmroHref Zhang Y, Karatutlu A, Ersoy O et al. (2013). Looking into the structure of Ge nanocrystals through diffraction. nameOfConference DOI: 10.1107/s0108767313096232 QMRO: qmroHref Hatch SM, Briscoe J, Sapelkin A et al. (2013). Influence of anneal atmosphere on ZnO-nanorod photoluminescent and morphological properties with self-powered photodetector performance. nameOfConference DOI: 10.1063/1.4805349 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/6292 Mosselmans JFW, Taylor RP, Quinn PD et al. (2013). A time resolved microfocus XEOL facility at the Diamond Light Source. nameOfConference DOI: 10.1088/1742-6596/425/18/182009 QMRO: qmroHref Karatutlu A, Little WR, Sapelkin AV et al. (2013). OD-XAS and EXAFS: Structure and Luminescence in Ge Quantum Dots. nameOfConference DOI: 10.1088/1742-6596/430/1/012026 QMRO: qmroHref Ghandour AJ, Crowe IF, Proctor JE et al. (2013). Pressure coefficients of Raman modes of carbon nanotubes resolved by chirality: Environmental effect on graphene sheet. nameOfConference DOI: 10.1103/PhysRevB.87.085416 QMRO: https://uat2-qmro.qmul.ac.uk/xmlui/handle/123456789/59297 Granovsky A, Orlov A, Perov N et al. (2012). Above room temperature ferromagnetism in Si:Mn and TiO(2-delta)Co.. nameOfConference DOI: 10.1166/jnn.2012.6543 QMRO: qmroHref Puech P, Hu T, Sapelkin A et al. (2012). Charge transfer between carbon nanotubes and sulfuric acid as determined by Raman spectroscopy. nameOfConference DOI: 10.1103/PhysRevB.85.205412 QMRO: qmroHref Ghandour AJ, Sapelkin A, Hernandez I et al. (2012). Raman excitation spectroscopy of carbon nanotubes: effects of pressure medium and pressure. nameOfConference DOI: 10.1080/08957959.2011.649280 QMRO: qmroHref Ghandour AJ, Dunstan DJ, Sapelkin A (2011). Raman G-mode of single-wall carbon nanotube bundles under pressure. nameOfConference DOI: 10.1002/jrs.2905 QMRO: qmroHref Pavlov AM, Sapelkin AV, Huang X et al. (2011). Neuron cells uptake of polymeric microcapsules and subsequent intracellular release.. nameOfConference DOI: 10.1002/mabi.201000494 QMRO: qmroHref Ghandour AJ, Dunstan DJ, Sapelkin A et al. (2011). Effect of water on resonant Raman spectroscopy of closed single-walled carbon nanotubes. nameOfConference DOI: 10.1002/pssb.201100074 QMRO: qmroHref Yashchenok AM, Bratashov DN, Gorin DA et al. (2010). Carbon Nanotubes on Polymeric Microcapsules: Free-Standing Structures and Point-Wise Laser Openings. nameOfConference DOI: 10.1002/adfm.201000846 QMRO: qmroHref Chang H, Khan R, Rong Z et al. (2010). Study of albumin and fibrinogen membranes formed by interfacial crosslinking using microfluidic flow.. nameOfConference DOI: 10.1088/1758-5082/2/3/035002 QMRO: qmroHref Orlov AF, Granovsky AB, Balagurov LA et al. (2009). Structure, electrical and magnetic properties, and the origin of the room temperature ferromagnetism in Mn-implanted Si. nameOfConference DOI: 10.1134/S1063776109100069 QMRO: qmroHref Ghandour AJ, Dunstan DJ, Sapelkin A (2009). G-mode behaviour of closed ended single wall carbon nanotubes under pressure. nameOfConference DOI: 10.1002/pssb.200880503 QMRO: qmroHref Ghandour AJ, Dunstan DJ, Sapelkin A et al. (2008). High-pressure Raman response of single-walled carbon nanotubes: Effect of the excitation laser energy. nameOfConference DOI: 10.1103/PhysRevB.78.125420 QMRO: qmroHref Puech P, Ghandour A, Sapelkin A et al. (2008). Raman G band in double-wall carbon nanotubes combining p doping and high pressure. nameOfConference DOI: 10.1103/PhysRevB.78.045413 QMRO: qmroHref Kartopu G, Sapelkin AV, Karavanskii VA et al. (2008). Structural and optical properties of porous nanocrystalline Ge. nameOfConference DOI: 10.1063/1.2924417 QMRO: qmroHref Kartopu G, Es-Souni M, Sapelkin AV et al. (2008). Large-scale, reliable and robust SERS-active nanowire substrates prepared using porous alumina templates. nameOfConference DOI: 10.1166/jnn.2008.D204 QMRO: qmroHref Puech P, Ghandour A, Sapelkin A et al. (2008). Chemical doping by sulfuric acid in double wall carbon nanotubes. nameOfConference DOI: doi QMRO: qmroHref Mills D, Kreouzis T, Sapelkin A et al. (2007). Surface texturing of Si, porous Si and TiO2 by laser ablation. nameOfConference DOI: 10.1016/j.apsusc.2007.01.078 QMRO: qmroHref Sapelkin AV, Karavanskii VA, KartopU G et al. (2007). Raman study of nano-crystalline Ge under high pressure. nameOfConference DOI: 10.1002/pssb.200642432 QMRO: qmroHref Balagurov LA, Klimonsky SO, Kobeleva SP et al. (2007). Ferromagnetism of 3-D transition metals solid solutions in titanium oxides. nameOfConference DOI: 10.1016/j.jmmm.2006.10.779 QMRO: qmroHref Balagurov LA, Klimonsky SO, Kobeleva SP et al. (2006). Impact of vacuum thermal treatments on the structure and magnetic properties of titanium oxide films doped with Co. nameOfConference DOI: 10.1088/0953-8984/18/48/027 QMRO: qmroHref Lyapin AG, Brazhkin VV, Sapelkin AV (1994). Semiconductor-to-metal transition in bulk amorphous gallium antimonide under high pressure. nameOfConference DOI: 10.1080/08957959408200260 QMRO: qmroHref Kartopu G, Es-Souni M, Sapelkin AV et al. (2006). A novel SERS-active substrate system: Template-grown nanodot-film structures. nameOfConference DOI: 10.1002/pssa.200622238 QMRO: qmroHref Puech P, Flahaut E, Sapelkin A et al. (2006). Nanoscale pressure effects in individual double-wall carbon nanotubes. nameOfConference DOI: 10.1103/PhysRevB.73.233408 QMRO: qmroHref Balagurov LA, Loginov BA, Petrova EA et al. (2006). Formation of porous silicon at elevated temperatures. nameOfConference DOI: 10.1016/j.electacta.2005.09.022 QMRO: qmroHref Sapelkin AV, Bayliss SC, Lyapin AG et al. (1996). Structural Studies of Bulk Amorphous GaSb under High Pressures. nameOfConference DOI: 10.1002/pssb.2221980166 QMRO: qmroHref Lyapin AG, Brazhkin VV, Popova SV et al. (1996). Nonequilibrium Phase Transformations in Diamond and Zincblende Semiconductors under High Pressure. nameOfConference DOI: 10.1002/pssb.2221980163 QMRO: qmroHref Sapelkin AV, Bayliss SC, Unal B et al. (2006). Interaction of B50 rat hippocampal cells with stain-etched porous silicon. nameOfConference DOI: 10.1016/j.biomaterials.2005.06.023 QMRO: qmroHref Karavanskii V, Gillin W, Sapelkin A et al. (2006). Photoluminescence relaxation kinetics in vapor etched porous silicon - art. no. 63441A. nameOfConference DOI: 10.1117/12.694292 QMRO: qmroHref Andrushin SY, Balagurov LA, Liberova GV et al. (2005). Formation of porous silicon on a non-conductive substrate and its use as a sacrificial layer. nameOfConference DOI: 10.1098/0268-1242/20/12/013 QMRO: qmroHref Baru VG, Bayliss S, Zhitov VA et al. (2005). Structural and Luminescent Properties of SiOxNy(Si) Nanocomposite Films. nameOfConference DOI: 10.1007/s11180-005-0038-z QMRO: qmroHref Sapelkin AV (2005). Susan Caroline Bayliss - Obituary. nameOfConference DOI: 10.1063/1.2012477 QMRO: qmroHref Lyapin AG, Mukhamadiarov VV, Brazhkin VV et al. (2004). Anisotropic nanoclustered carbon phases prepared from fullerite C-60 under non-hydrostatic high pressure. nameOfConference DOI: 10.1081/FST-120027163 QMRO: qmroHref Bayliss SC, Ashraf I, Sapelkin AV (2004). Concerning signaling in in vitro neural arrays using porous silicon. nameOfConference DOI: 10.1007/1-4020-2173-9_39 QMRO: qmroHref Lyapin AG, Mukhamadiarov VV, Brazhkin VV et al. (2003). Structural and elastic anisotropy of carbon phases prepared from fullerite C-60. nameOfConference DOI: 10.1063/1.1625432 QMRO: qmroHref Greaves GN, Meneau F, Sapelkin A et al. (2003). The rheology of collapsing zeolites amorphized by temperature and pressure. nameOfConference DOI: 10.1038/nmat963 QMRO: qmroHref Brazhkin VV, Lyapin AG, Voloshin RN et al. (2003). Pressure-induced crossover between diffusive and displacive mechanisms of phase transitions in single-crystalline alpha-GeO2.. nameOfConference DOI: 10.1103/PhysRevLett.90.145503 QMRO: qmroHref Brazhkin VV, Lyapin AG, Voloshin RN et al. (2003). Pressure-induced crossover between diffusive and displacive mechanisms of phase transitions in single-crystalline α-GeO2. nameOfConference DOI: doi QMRO: qmroHref Kartopu G, Bayliss SC, Karavanskii VA et al. (2003). On the origin of the 2.2-2.3 eV photoluminescence from chemically etched germanium. nameOfConference DOI: 10.1016/S0022-2313(02)00570-7 QMRO: qmroHref SAPELKIN A (2002). Distance dependence of mean-square relative displacements in EXAFS. nameOfConference DOI: 10.1103/PhysRevB.65.172104 QMRO: qmroHref SAPELKIN A, Bayliss SC (2002). Distance dependence of mean-square relative displacements in EXAFS. nameOfConference DOI: 10.1103/PhysRevB.65.172104 QMRO: qmroHref Sapelkin AV, Bayliss SC (2002). X-ray absorption spectroscopy under high pressures in diamond anvil cells. nameOfConference DOI: 10.1080/08957950108202590 QMRO: qmroHref Russell D, Bayliss SC, Sapelkin AV et al. (2001). The preparation and characterisation of gallium nitride using the Hi-Prexx facility. nameOfConference DOI: 10.1016/S0921-5107(00)00673-5 QMRO: qmroHref Vanpeteghem CB, Nelmes RJ, Allan DR et al. (2001). High-pressure high-temperature studies of structural ordering in GaSb. nameOfConference DOI: 10.1002/1521-3951(200101)223:2<405::AID-PSSB405>3.0.CO;2-5 QMRO: qmroHref Sapelkin AV, Bayliss SC, Russell D et al. (2000). In situ EXAFS, X‐ray diffraction and photoluminescence for high‐pressure studies. nameOfConference DOI: 10.1107/s0909049500005252 QMRO: qmroHref Lyapin AG, Brazhkin VV, Gromnitskaya EL et al. (2000). Hardening of fullerite C60 during temperature-induced polymerization and amorphization under pressure. nameOfConference DOI: 10.1063/1.125870 QMRO: qmroHref Sapelkin AV, Bayliss SC, Lyapin AG et al. (2000). Local structure of bulk amorphous and crystalline (GaSb)1-x(Ge2)x. nameOfConference DOI: 10.1103/physrevb.61.1907 QMRO: qmroHref Kulyk Y, Staovoitov A, Sapelkin A et al. (1999). X-ray diffraction of diamond for improved high pressure EXAFS. nameOfConference DOI: 10.1016/s0010-4655(06)70088-1 QMRO: qmroHref Brazhkin VV, Lyapin AG, Voloshin RN et al. (1999). Mechanism of the formation of a diamond nanocomposite during transformations of C60 fullerite at high pressure. nameOfConference DOI: 10.1134/1.568104 QMRO: qmroHref Sapelkin A, Bayliss S, Lyapin A et al. (1999). Local atomic ordering in bulk amorphous (GaSb)1−xGe2x. nameOfConference DOI: 10.1107/s0909049598015076 QMRO: qmroHref Bayliss SC, Demeester P, Fletcher I et al. (1999). The optical and structural properties of InGaN epilayers with very high indium content. nameOfConference DOI: 10.1016/s0921-5107(98)00358-4 QMRO: qmroHref Sapelkin AV, Bayliss S (1999). COMBINED XRD, XAFS AND PL FOR HIGH PRESSURE STUDIES. nameOfConference DOI: doi QMRO: qmroHref Sapelkin AV, Bayliss SC, Salvini G et al. (1998). High pressure X-ray Absorption Spectroscopy at the Daresbury Synchroton Radiation Source. nameOfConference DOI: 10.4131/jshpreview.7.1487 QMRO: qmroHref Sapelkin AV, Bayliss SC, Lyapin AG et al. (1997). Structure of bulk amorphous GaSb: A temperature-dependent EXAFS study. nameOfConference DOI: 10.1103/physrevb.56.11531 QMRO: qmroHref Lyapin AG, Brazhkin VV, Bayliss SC et al. (1996). Pressure-induced distortion of the amorphous tetrahedral network in a-GaSb: Direct evidence from EXAFS. nameOfConference DOI: 10.1103/physrevb.54.r14242 QMRO: qmroHref Brazhkin VV, Lyapin AG, Khvostantsev LG et al. (1996). Phase transformations and the nature of the semiconductor-to-metal transition in bulk a-GaSb and a-(Ge2)1-x(GaSb)x semiconductors under high pressure. nameOfConference DOI: 10.1103/physrevb.54.1808 QMRO: qmroHref Sapelkin AV, Bayliss SC, Lyapin AG et al. (1996). Structural studies of semiconductor-to-metal transition in the bulk amorphous solid solutions (GaSb)(1-x)(Ge-2)(x) under high pressure. European Powder Diffraction Conference DOI: 10.4028/www.scientific.net/MSF.228-231.543 QMRO: qmroHref Sidorov VA, Brazhkin VV, Khvostantsev LG et al. (1994). Nature of Semiconductor-to-Metal Transition and Volume Properties of Bulk Tetrahedral Amorphous GaSb and GaSb-Ge Semiconductors under High Pressure. nameOfConference DOI: 10.1103/physrevlett.73.3262 QMRO: qmroHref BRAZHKIN V, LYAPIN A, POPOVA S et al. (1994). Semiconductor-metal transition in amorphous gallium antimonide at high-pressure. nameOfConference DOI: doi QMRO: qmroHref SupervisionResearch Group Current members Ying Liu, Atomic structure of low-dimensional materials Past Members Nikolaos Papaioannou, now with Unilever UK. Kemal Keseroglu, now a Research Fellow at Cincinnati Children's, USA. Zhang Yuanpeng, now at Oak Ridge National Laboratory, USA. Ali Karatutlu, now an Assistant Professor at Bursa Orhangazi University, Turkey. Mingying Song, now a Research Fellow at The State Key Laboratory of Laser Interaction with Matter, China. Osman Ersoy, Semiconductor quantum dots William Little, Structure and optical properties of semiconductor quantum dots.PerformanceMy Talks Quantum Dots for imaging Talk [PDF 3,298KB] at a British Council Sponsored Workshop, Saratov, Russia Quantum Dots Raman and PL Talk [PDF 2,757KB] at Renishaw Inside Raman workshop, Rutherford Appleton Laboratory Interaction of nanostructures with living cells Talk [PDF 2,091KB] at Royal Holloway, University of London Nanostructures under pressure Talk [PDF 1,028KB] at a CSEC, Edinburgh and at CEMES-CNRS Toulouse, France In the Media "Molecular "dances" determine how liquids take up heat" Wikipedia (search Sapelkin)