Tag: nanoparticles

Hot off the press! New publication in Chem. Commun.

Written by JAGS on December 11, 2014. Posted in General News.

Crystallization of hollow mesoporous silica nanoparticles

Glenna L. Drisko, Adrian Carretero-Genevrier, Alexandre Perrot, Martí
Gich, Jaume Gàzquez, Juan Rodriguez-Carvajal, Luc Favre, David Grosso,
Cédric Boissière, Clément Sanchez

ChemComm, DOI: 10.1039/x0xx00000x

Complex 3D nacrostructured nanoparticles are transformed from amorphous silica into pure polycrystalline α-quartz using catalytic quantities of alkaline earths as devitrificants. Walls as thin as 10 nm could be crystallized without losing the architecture of the particles. The roles of cation size and the mol% of incorporated devitrificant on crystallization behavior are studied, with Mg2+, Ca2+, Sr2+ and Ba2+ allproducing pure α-quartz under certain conditions.

FRIDAY 14th, PhD DEFENSE of NEREA MURILLO

Written by JAGS on November 11, 2014. Posted in General News.

Nerea Murillo-Cremaes will defend her PhD thesis entitled:

MULTIFUNCTIONAL SILICA-BASED NANOPARTICLES FOR BIOMEDICAL APPLICATIONS

The thesis has been supervised by Dr. Concha Domingo and Dr. Anna Roig.

The thesis jury will be formed by Prof Daniel Ruiz-Molina, Institut Català de Nanociencia i Nanotecnologia, Nanosfun Group, Bellaterra, Catalonia, Prof Vadim Kessler, Swedish University of Agricultural Sciences, Department of Chemistry and Biotechnology, Sweden and Prof Julio San Román, Biomaterials Group, Instituto de Ciencia y Tecnologia de Polimeros (CSIC), Madrid, Spain

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This thesis aimed to fabricate hybrid (organic-inorganic) complex materials as drug carriers using supercritical fluids. For that purpose, two main objectives have been addressed: first, evaluation of the potentiality of porous silica-based materials synthesized without using porogenic agents as drug delivery systems; and second, exploiting the utility of SCFs in the synthesis and functionalization of those materials. During the realization of this work, silica-based nanostructured materials have been synthesized, loaded with a model drug, physical and chemically modified on their surface, and their interaction with relevant biological entities and media were investigated.

Hot off the press: new article in Phys. Rev. Applied

Written by JAGS on November 6, 2014. Posted in General News.

MAXIMUM QUALIFICATION FOR MULING’S PhD THESIS

Written by JAGS on September 25, 2014. Posted in General News.

CONGRATULATIONS to her from all the n&n group members!

Muling has already accepted a post-doc at Leeds University in UK, where she is planning to start in January

Hot off the press: new article in Journal of Polymer Science

Written by JAGS on July 17, 2014. Posted in General News.

A novel solventless coating method to graft low molecular weight polyethyleneimine on silica

fine powders

Nerea Murillo-Cremaes, Pedro López-Aranguren, Lourdes F. Vega, Javier Saurina,

Anna Roig*, Concepción Domingo*

Journal of Polymer Science, Part A: Polymer Chemistry (2014), on-line July DOI:10.1002/pola.27297

A ring-opening polymerization process catalyzed by compressed CO₂ at low pressure and temperature and in the absence of any organic solvent is presented. Fabrication of hybrid materials involving two types of silica nanoparticles (one of them with a magnetic core) coated with hyperbranched polyethyleneimine of low molecular weight was succesfully achieved. Properties of the obtained materials are identified as excellent for some biomedical applications

Siming Yu gave a presentation at IDS-FunMat in Belgium.

Written by JAGS on March 20, 2014. Posted in Conferences, News.

IDS-FunMat is an EMMI International Doctoral School for Functional Materials, supported by ERASMUS MUNDUS.

http://www.emmi-materials.eu/

The fourth Training School took place on 16-21 March in Spa, Belgium where a number of high-profile external speakers were invited. Siming gave a presentation on the stability of nanoparticles in biological media which is part of his PhD thesis.

Nerea Murillo, Muling Zeng and Pengfei Niu attend the Sol-Gel Conference in Madrid

Written by JAGS on August 23, 2013. Posted in General News.

sol gel 2013 The International Sol-Gel Conference will be held in Madrid the coming week. The N&N group will be represented by Nerea, Muling and Pengfei. Nerea will give a talk.

Project funded by the Plan Nacional de Investigación Científica!

Written by JAGS on September 17, 2012. Posted in News, Projects News.

Our application to the Fundamental Research Projects of the Spanish VI “Plan Nacional de Investigación Científica, Desarrollo e Innovación Tecnológica” with the project “Advanced preparation techniques for nanoparticles and their biomedical and environmental assessment (AdvancedNP)” has been funded.