what is reported, for example, for calcium phosphate ...close full abstract) (close full abstract) (close full abstract) what is reported, for example, for calcium phosphate precipitated

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what is reported, for example, for calcium phosphate precipitated with poly

(acrylic acid). We propose that poly(ethylene imine) acts as a proton

acceptor (weak buffer), which accelerates the transformation from brushite

to HAP by taking up the protons that are released from the calcium

phosphate precipitate during the phase transformation. The effect of

polycations on calcium phosphate mineralization is further studied by the

use of polymer monolayers as templates for mineralization.

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16:20 GPGPU-assisted polymer nanocomposite modelling and characterisation

Authors : Sergey V. Pyrlin[1,2]; Marta M.D. Ramos [1]; Anna Y. Matveeva [2];

Ferrie W.J. van Hattum[2]

Affiliations : 1. Group of Computational and Theoretical Physics, Center of Physics

and Department of Physics, University of Minho, Campus de Gualtar, 4710-057

Braga, Portugal; 2. I3N - Institute for Nanostructures, Nanomodelling and

Nanofabrication, IPC - Institute for Polymers and Composites, University of Minho,

Campus de Azurem, 4800-058 Guimaraes, Portugal;

Resume : Development of the hybrid materials with predefined properties

by addition of inorganic nanoinclusions to a polymer material constitutes a

hard challenge due to significant properties! variations depending on

inclusion!s distribution and interaction. To understand structure-property

relations in such materials optical image analysis and numeric modeling are

widely used, however matching such data with properties! measurements for

industrial nanocomposites requires a link to be established between

experimental and modeling length scales. In this work a computer code was

developed to create a model composite structure with a predefined

distribution probability of inclusions using NVIDIA CUDA GPGPU approach.

The code is capable of randomly populating and analyzing samples of the

typical size of microphotographs used for experimental characterization and

typical nanoinclusions! concentrations avoiding unphysical intersections and

thus allow correlating the results of both optical characterization and

statistical computer modeling. The initial probability distribution can be

taken from experimental samples and further varied to investigate the effect

of distribution on a desired property. Application to study the effect of

carbon nanotubes and carbon nanofibers in a polymer matrix on the

composite electrical and mechanical properties is discussed. This work is a

part of Marie Curie Initial Training Network "CONTACT" (FP7-PEOPLE-ITN-

2008-238363) http://www.contactproject.eu/.

P1 11

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16:20 Synthesis and Evaluation of the Cat�s Eye-�Shaped [57Co]CoO@SiO2

Nanoshell Aqueous Colloids for Imaging Agent

Authors : Jeong Hoon Park*, Min Jae Kwon, Min Gu Hur*, Hyun Jung

Affiliations : Radiation Instrumentation Research Division Korea Atomic Energy

Research Institute*, Department of Chemistry Dongguk University-Seoul Campus

Resume : The #cat!s eye$-shaped [57Co]CoO@SiO2 nanoshell was prepared

by the reverse microemulsion method combined radioisotope technique to

investigate a potential tumor imaging agent for tomography in nuclear

medicine. The core cobalt oxide nanorods were obtained by thermal

decomposition of Co-(oleate)2 precursor from radio isotope Co-57

containing cobalt chloride and sodium oleate. The length of cobalt oxide

nanocrystals was controlled by varying the reaction conditions, such as the

heating rate and reaction time. The SiO2 coating on the surface of the core

cobalt oxide nanorods was produced by hydrolysis and a condensation

reaction of tetra ethyl ortho silicate (TEOS) in the water phase of the

reverse microemulsion system. In vitro test of the #cat!s eye$-shaped

[57Co]CoO@SiO2 nanoshell was carried out with tumor cell lines (C6 and

CT26). In vivo test, micro SPET image was acquired with CT26 transplanted

nude mouse after 30 min of intravenous injection of [57Co]CoO@SiO2

nanoshell. The obtained nanoshell material were characterized by X-ray

diffraction (XRD) measurements, Fourier transform infrared spectroscopy

(FT-IR) and high-resolution transmission electron microscopy (HR-TEM) and

The biological evaluations of nanoshell were performed with gamma counter

and animal micro SPECT (single photon emission computed tomography).

P1 12

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16:20 Phenyl silane hybrid xerogels. Structure and porous texture

Authors : Paula Moriones, Xabier Rios, Jesus Echeverria, Julian J. Garrido

Affiliations : Departamento de Quimica Aplicada, Universidad Publica de Navarra,

31006 Pamplona, Spain

P1 13

Page 11 of 31EMRS - Strasbourg

25/04/2012http://www.emrs-strasbourg.com/index.php?option=com_abstract&task=view&id=17...

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Acknowledgements:1. The work is a part of the CONTACT project for the tailored supply-chain development of CNT-filled composites with improved mechanical and

electrical properties funded by Marie Curie Initial Training Network "CONTACT" (FP7-PEOPLE-ITN-2008-238363) http://www.contactproject.eu/;

2. The Center of Physics of University of Minho research is partially sponsored by FEDER funds through the program COMPETE- ProgramaOperacional Factores de Competitividade and by national funds through FCT-Fundação para a Ciência e a Tecnologia, under the projects CONC-

REEQ/443/EEI/2005 and PEst-C-FIS/UI607/2011-2012.

GPGPU-assisted polymer nanocomposite

modeling and characterization

Sergey V. Pyrlin*[1,2,3], Marta M.D. Ramos [1], Anna Y. Matveeva [2], Ferrie W.J. van Hattum[2]

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*[email protected]

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what is reported, for example, for calcium phosphate ...close full abstract) (close full abstract) (close full abstract) what is reported, for example, for calcium phosphate precipitated