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Showing 13 to 24 of 104 entries
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Design and performance of a combined secondary ion mass spectrometry-scanning probe microscopy instrument for high sensitivity and high-resolution elemental three-dimensional analysis.

The Review of scientific instruments

Wirtz T, Fleming Y, Gerard M, Gysin U, Glatzel T, Meyer E, Wegmann U, Maier U, Odriozola AH, Uehli D.
PMID: 22755629
Rev Sci Instrum. 2012 Jun;83(6):063702. doi: 10.1063/1.4724308.

State-of-the-art secondary ion mass spectrometry (SIMS) instruments allow producing 3D chemical mappings with excellent sensitivity and spatial resolution. Several important artifacts however arise from the fact that SIMS 3D mapping does not take into account the surface topography of...

Ion-specific colloidal aggregation: population balance equations and potential of mean force.

The Journal of chemical physics

Odriozola G.
PMID: 21992332
J Chem Phys. 2011 Oct 07;135(13):134704. doi: 10.1063/1.3644769.

Recently reported colloidal aggregation data obtained for different monovalent salts (NaCl, NaNO(3), and NaSCN) and at high electrolyte concentrations are matched with the stochastic solutions of the master equation to obtain bond average lifetimes and bond formation probabilities. This...

Catalytic enantioselective quick route to aldol-tethered 1,6- and 1,7-enynes from ω-unsaturated aldehydes.

Chemistry (Weinheim an der Bergstrasse, Germany)

García JM, Odriozola JM, Razkin J, Lapuerta I, Odriozola A, Urruzuno I, Vera S, Oiarbide M, Palomo C.
PMID: 25283152
Chemistry. 2014 Nov 17;20(47):15543-54. doi: 10.1002/chem.201404452. Epub 2014 Oct 03.

An effective asymmetric route to functionalized 1,6- and 1,7-enynes has been developed based on a direct cross-aldol reaction between ω-unsaturated aldehydes and propargylic aldehydes (α,β-ynals) promoted by combined α,α-dialkylprolinol ether/Brønsted acid catalysis. This synergistic activation strategy is key to...

α-Hydroxy Ketones as Masked Ester Donors in Brønsted Base Catalyzed Conjugate Additions to Nitroalkenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Olaizola I, Campano TE, Iriarte I, Vera S, Mielgo A, García JM, Odriozola JM, Oiarbide M, Palomo C.
PMID: 29446501
Chemistry. 2018 Mar 12;24(15):3893-3901. doi: 10.1002/chem.201705968. Epub 2018 Feb 15.

The catalyst-controlled enantioselective direct addition reaction of enolizable esters and related carboxylic acid derivatives to π electrophiles remains a difficult synthetic transformation. In this study, the suitability of α-hydroxy ketones as ester equivalents capable of being activated by bifunctional...

Competition between excluded-volume and electrostatic interactions for nanogel swelling: effects of the counterion valence and nanogel charge.

Physical chemistry chemical physics : PCCP

Adroher-Benítez I, Martín-Molina A, Ahualli S, Quesada-Pérez M, Odriozola G, Moncho-Jordá A.
PMID: 28218325
Phys Chem Chem Phys. 2017 Mar 01;19(9):6838-6848. doi: 10.1039/c6cp08683g.

In this work the equilibrium distribution of ions around a thermo-responsive charged nanogel particle in an electrolyte aqueous suspension is explored using coarse-grained Monte Carlo computer simulations and the Ornstein-Zernike integral equation theory. We explicitly consider the ionic size...

Au/CeO.

Frontiers in chemistry

Megías-Sayago C, Reina TR, Ivanova S, Odriozola JA.
PMID: 31355190
Front Chem. 2019 Jul 12;7:504. doi: 10.3389/fchem.2019.00504. eCollection 2019.

The present work showcases the versatility of nanogold systems supported on Zn-doped ceria when applied in two important environmental processes, the total CO oxidation, and the liquid phase oxidation of glucose to gluconic acid. In the CO oxidation the...

Anomalous structural transition of confined hard squares.

Physical review. E

Gurin P, Varga S, Odriozola G.
PMID: 27967070
Phys Rev E. 2016 Nov;94(5):050603. doi: 10.1103/PhysRevE.94.050603. Epub 2016 Nov 28.

Structural transitions are examined in quasi-one-dimensional systems of freely rotating hard squares, which are confined between two parallel walls. We find two competing phases: one is a fluid where the squares have two sides parallel to the walls, while...

Scaling Laws in the Diffusive Release of Neutral Cargo from Hollow Hydrogel Nanoparticles: Paclitaxel-Loaded Poly(4-vinylpyridine).

ACS nano

Moncho-Jordá A, Jódar-Reyes AB, Kanduč M, Germán-Bellod A, López-Romero JM, Contreras-Cáceres R, Sarabia F, García-Castro M, Pérez-Ramírez HA, Odriozola G.
PMID: 33174725
ACS Nano. 2020 Nov 24;14(11):15227-15240. doi: 10.1021/acsnano.0c05480. Epub 2020 Nov 11.

We study the nonequilibrium diffusive release of electroneutral molecular cargo encapsulated inside hollow hydrogel nanoparticles. We propose a theoretical model that includes osmotic, steric, and short-range polymer-cargo attractions to determine the effective cargo-hydrogel interaction,

Impact of the COVID-19 lockdown on liver transplant recipients. A single center observational study.

Revista espanola de enfermedades digestivas : organo oficial de la Sociedad Espanola de Patologia Digestiva

Cuadrado A, Gaite LM, Odriozola A, Oloriz R, Herrera S, Fortea JI, Amigo L, Anderson EJ, Artal JA, Crespo J, Fábrega E.
PMID: 34470450
Rev Esp Enferm Dig. 2021 Sep 02; doi: 10.17235/reed.2021.8173/2021. Epub 2021 Sep 02.

BACKGROUND: The impact of the COVID-19 outbreak and lockdown in liver transplant (LT) patients remains unknown. The aim of this cross-sectional study was to assess the consequences of the COVID-19 pandemic on the physical and mental health of LT...

Multiple contact kernel for diffusionlike aggregation.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Schmitt A, Odriozola G, Moncho-Jorda A, Callejas-Fernandez J, Martinez-Garcia R, Hidalgo-Alvarez R.
PMID: 11138132
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Dec;62(6):8335-43. doi: 10.1103/physreve.62.8335.

The Brownian kernel is usually assumed to describe pure diffusion-limited cluster-aggregation processes. In this work, we show that this assumption is correct for simulated data. For experimental data, however, significant deviations were observed although the system was aggregated at...

Equilibrium equation of state of a hard sphere binary mixture at very large densities using replica exchange Monte Carlo simulations.

The Journal of chemical physics

Odriozola G, Berthier L.
PMID: 21303135
J Chem Phys. 2011 Feb 07;134(5):054504. doi: 10.1063/1.3541248.

We use replica exchange Monte Carlo simulations to measure the equilibrium equation of state of the disordered fluid state for a binary hard sphere mixture up to very large densities where standard Monte Carlo simulations do not easily reach...

Improving the activity of gold nanoparticles for the water-gas shift reaction using TiO.

Physical chemistry chemical physics : PCCP

Plata JJ, Romero-Sarria F, Amaya Suárez J, Márquez AM, Laguna ÓH, Odriozola JA, Fdez Sanz J.
PMID: 30112549
Phys Chem Chem Phys. 2018 Aug 29;20(34):22076-22083. doi: 10.1039/c8cp03706j.

In the last ten years, there has been an acceleration in the pace at which new catalysts for the water-gas shift reaction are designed and synthesized. Pt-based catalysts remain the best solution when only activity is considered. However, cost,...

Showing 13 to 24 of 104 entries