• Article dans une revue

To be born is not enough: the key role of innovative start-ups

Alessandra Colombelli, Jackie Krafft, Marco Vivarelli

This paper investigates the reasons why entry per se is not necessarily good and the evidence showing that innovative start-ups survive longer than their non-innovative counterparts. In this framework, our own empirical analysis shows that greater survival is achieved when start-ups engage…

Small Business Economics, 2016, 47 (2), pp.1-15. ⟨10.1007/s11187-016-9716-y⟩. ⟨halshs-01248721⟩

• Article dans une revue

“Nanocasting”: using SBA-15 silicas as hard templates to obtain monodispersed superparamagnetic gamma-Fe2O3 nanoparticles

Anne Davidson, Emilie Delahaye, Virginie Escax, Nissrine El Hassan, Renata Aquino, Vincent Dupuis, Regine Perzynski, Yuri Raikher

This work describes the use of mesoporous SBA-15 silicas as hard templates, for the size-controlled synthesis of oxides nanoparticles, the pores acting as nanoscale reactors. This fundamental work is mainly aimed at understanding unresolved issues concerning the occurrence and size dependence of…

Journal of Physical Chemistry B, 2006, 110, pp.26001. ⟨hal-00128537⟩

• Communication dans un congrès

Gold Nanoparticules in the Past : Their First Uses before the Nanotechnology Era

Catherine R Louis

Gold Nanoparticules in the Past : Their First Uses before the Nanotechnology Era . Gold 2012, Sep 2012, Tokyo, Japan. ⟨hal-01547453⟩

• Article dans une revue

Chemically and Physically Pretreated Straw in Moderate Conditions: Poor Correlation between Biogas Production and Commonly Used Biomass Characterization

Shruthi Meenakshisundaram, Vincenzo Calcagno, Claire Ceballos, Antoine Fayeulle, Estelle Léonard, Virginie Herledan, Jean-Marc Krafft, Yannick Millot, Xiaojun Liu, Claude Jolivalt, André Pauss

Straw is a substantial agricultural by-product for biogas production. Hydrolysis of straw is found to be a rate-limiting step during its anaerobic digestion and could be enhanced by pretreatment. In this paper, the effect of various combinations of particle size reduction, autoclaving, and low-…

Energies, 2023, 16 (3), pp.1146. ⟨10.3390/en16031146⟩. ⟨hal-03952139⟩

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Factors impacting the aggregation/agglomeration and photocatalytic activity of highly crystalline spheroid- and rod-shaped TiO 2 nanoparticles in aqueous solutions

Thomas Degabriel, Elodie Colaço, Rute F Domingos, Karim El Kirat, Dalil Brouri, Sandra Casale, Jessem Landoulsi, Jolanda Spadavecchia

We investigate the characteristics, fate and photocatalytic activity of spheroid- and rod-shaped TiO2 nano-crystals in aqueous solutions to better understand their behaviour in media of biological and environmental interest. For this purpose, the potential of a solvothermal method in synthesizing…

Physical Chemistry Chemical Physics, 2018, 20 (18), pp.12898 - 12907. ⟨10.1039/C7CP08054A⟩. ⟨hal-01803715⟩

• Article dans une revue

Enzyme-assisted mineralization of calcium phosphate: exploring confinement for the design of highly crystalline nano-objects

E. Colaço, D. Lefèvre, E. Maisonhaute, D. Brouri, C. Guibert, C. Dupont-Gillain, Karim El Kirat, S. Demoustier-Champagne, J. Landoulsi

In hard tissues of vertebrates, calcium phosphate (CaP) biomineralization is a fascinating process that combines specific physicochemical and biochemical reactions, resulting in the formation of extracellular matrices with elegant nanoarchitectures. Although several “biomimetic” strategies have…

Nanoscale, 2020, 12 (18), pp.10051-10064. ⟨10.1039/d0nr01638a⟩. ⟨hal-03266105⟩

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Silk foams with metallic nanoparticles as scaffolds for soft tissue regeneration

Claire de Lartigue, Cristina Belda Marín, Vincent Fitzpatrick, Antonella Esposito, Sandra Casale, Jessem Landoulsi, Erwan Guénin, Christophe Egles

Tissue regeneration can be achieved by providing endogenous cells with a biomaterial scaffold that supports their adhesion and proliferation, as well as the synthesis and deposition of an extracellular matrix (ECM). In this work, silk fibroin protein foams were formed by lyophilization to generate…

International Journal of Molecular Sciences, 2024, 25 (22), pp.12377. ⟨10.3390/ijms252212377⟩. ⟨hal-04798722⟩

• Article dans une revue

Bridging Hydroxyls on Anatase TiO$_2$ (101) by Water Dissociation in Oxygen Vacancies

Immad M Nadeem, George T Harrison, Axel Wilson, Chi L Pang, Jörg Zegenhagen, Geoff Thornton

Titanium dioxide is a promising candidate for photocatalytic H$_2$ fuel production, and understanding water splitting on TiO$_2$ surfaces is vital toward explaining and improving the generation of H$_2$. In this work, we electron irradiate anatase TiO$_2$ (101) at room temperature to create…

Journal of Physical Chemistry B, 2017, 122 (2), pp.834-839. ⟨10.1021/acs.jpcb.7b06955⟩. ⟨hal-04702398⟩

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New Insights into the Structure and Degradation of Alizarin Lake Pigments: Input of the Surface Study Approach

Guanzheng Zhuang, Silvia Pedetti, Yoan Bourlier, Philippe Jonnard, Christophe Méthivier, Philippe Walter, Claire-Marie Pradier, Maguy Jaber

Alizarin (Az) lake is a typical example of madder lake pigments that are widely used in cultural heritages. Previous work focused on the complex formation in solution, theoretical models, and crystallized stoichiometric structures (Az/Al3+ = 1:1 or 2:1). However, the classical recipe for preparing…

Journal of Physical Chemistry C, 2020, 124 (23), pp.12370-12380. ⟨10.1021/acs.jpcc.0c00746⟩. ⟨hal-02887434⟩

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A Molecular Picture of the Adsorption of Glycine in Mesoporous Silica through NMR Experiments Combined with DFT‑D Calculations

Nicolas Folliet, Christel Gervais, Dominique Costa, Guillaume Laurent, Florence Babonneau, Lorenzo Stievano, Jean-François Lambert, Frederik Tielens

The adsorption behavior of the amino acid glycine in mesoporous silica has been investigated using a combination of quantum chemical calculations and NMR spectroscopy experiments. Glycine adsorption on two representative sites of an amorphous silica surface, vicinal silanols and a silanol nest, was…

Journal of Physical Chemistry C, 2013, 117, pp.4104-4114. ⟨10.1021/jp312195a⟩. ⟨hal-00797997⟩