• Article dans une revue

Revisiting Alkoxysilane Assembly on Silica Surfaces: Grafting versus Homo-Condensation in Solution

Yannick Millot, Antoine Hervier, Jihed Ayari, Naoures Hmili, Juliette Blanchard, Souhir Boujday

Silica surface functionalization is mandatory for a large variety of applications. This step is often done through the condensation of functional silanes on silanol, silica surfaces' terminal groups. Among these silanes, aminopropyltriethoxysilane (APTES) is widely used due to its assumed high…

Journal of the American Chemical Society, 2023, 145 (12), pp.6671-6681. ⟨10.1021/jacs.2c11390⟩. ⟨hal-04294801⟩

• Article dans une revue

An Experimental and Theoretical Approach to Investigate the Effect of Chain Length on Aminothiol Adsorption and Assembly on Gold

Erin Bedford, Vincent Humblot, Christophe Méthivier, Claire-Marie Pradier, Frank Gu, Frederik Tielens, Souhir Boujday

Despite the numerous studies on the self-assembled monolayers (SAMs) of alkylthiols on gold, the mechanisms involved, especially the nature and influence of the thiol-gold interface are still under debate. In this work the adsorption of aminothiols on Au(111) surfaces has been studied by using…

Chemistry - A European Journal, 2015, 21 (41), pp.14555-14561. ⟨10.1002/chem.201500653⟩. ⟨hal-01275048⟩

• Article dans une revue

Biosensors elaborated on gold nanoparticles, a PM-IRRAS characterisation of the IgG binding efficiency.

Anne-Laure Morel, Souhir Boujday, Christophe Méthivier, Jean-Marc Krafft, Claire-Marie Pradier

This work is focused on studying the grafting of gold nanoparticles (Np) on a cystamine self-assembled monolayer on gold, in order to build sensitive immunosensors. The synthesis and deposition of gold nanoparticles, 13 and 55 nm sizes, were characterised by combining Polarisation Modulation…

Talanta, 2011, 85, pp.35-42. ⟨10.1016/j.talanta.2011.02.028⟩. ⟨hal-00668945⟩

• Article dans une revue

Can eccentric debris disks be long-lived?

V. Faramaz, H. Beust, P. Thebault, J.-C. Augereau, A. Bonsor, C. del Burgo, S. Ertel, J. Marshall, J. Milli, B. Montesinos, A. Mora, G. Bryden, W. Danchi, C. Eiroa, G. White, S. Wolf

Astronomy & Astrophysics - A&A, 2014, 563, pp.A72. ⟨10.1051/0004-6361/201322469⟩. ⟨hal-02581464⟩

• Article dans une revue

Intracellular biosynthesis of superparamagnetic 2-lines ferri-hydrite nanoparticles using Euglena gracilis microalgae

Roberta Brayner, Thibaud Coradin, Patricia Beaunier, Jean-Marc Greneche, Chakib Djediat, Claude Yéprémian, Alain Couté, Fernand Fievet

The intracellular biosynthesis of superparamagnetic (blocking temperature 5.6 K) 2-lines ferrihydrite (Fh2L) nanoparticles was observed within living Euglena gracilis microalgae.

Colloids and Surfaces B: Biointerfaces, 2012, 93, pp.20-23. ⟨10.1016/j.colsurfb.2011.10.014⟩. ⟨hal-00750391⟩

• Article dans une revue

Inelastic light scattering by long narrow gold nanocrystals: when size, shape, crystallinity and assembly matter

Hervé Portalès, Nicolas Goubet, Sandra Casale, Xiang Zhen Xu, Mostapha Ariane, Alain Mermet, Jeremie Margueritat, Lucien Saviot

We report the synthesis of long narrow gold nanocrystals and the study of their vibrational dynamics using inelastic light scattering measurements. Rich experimental spectra are obtained for monodomain gold nanorods and pentagonal twinned bipyramids. Their assignment involves diameter-dependent non…

ACS Nano, 2020, 14 (4), pp.4395-4404. ⟨10.1021/acsnano.9b09993⟩. ⟨hal-02566470⟩

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Plasmonic Properties of Gold Nanostructures on Gold Film

Médéric Lequeux, David Mele, Priyamvada Venugopalan, Raymond Gillibert, Souhir Boujday, Wolfgang Knoll, Jakub Dostalek, Marc Lamy de La Chapelle

This paper reports on a systematic study of the plasmonic properties of periodic arrays of gold cylindrical nanoparticles in contact with a gold thin film. Depending on the gold film thickness, it observes several plasmon bands. Using a simple analytical model, it is able to assign all these modes…

Plasmonics, 2020, 15 (6), pp.1653-1660. ⟨10.1007/s11468-020-01185-9⟩. ⟨hal-03044556⟩

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Non-biological selectivity in amino acids polymerization on TiO2 nanoparticles

Maguy Jaber, Jolanda Spadavecchia, Houssein Bazzi, Thomas Georgelin, France Costa-Torro, Jean-François Lambert

For the first, time a strong selectivity is evidenced in inorganic peptide synthesis. When an equimolar mixture of Ala and Arg monomers is added to the synthesis medium of TiO2 nanoparticles from Ti(IV) isopropoxide in benzyl alcohol, the Ala-Arg dipeptide is observed by 13C NMR in the resulting…

Amino Acids, 2013, 45, pp.403-406. ⟨10.1007/s00726-013-1516-y⟩. ⟨hal-00957907⟩

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nPEG-TiO2 Nanoparticles: A facile Route to Elaborate Nanostructured surfaces for Biological Applications.

Jolanda Spadavecchia, Souhir Boujday, Jessem Landoulsi, Claire-Marie Pradier

We report the synthesis of diacid-terminated PEG cubic TiO2 nanocrystals by a simple one-step solvothermal method, and their further use to form nanostructured surfaces for protein immobilization. The relevance and major interest of the so-obtained nanocrystals are the presence of terminal…

ACS Applied Materials & Interfaces, 2011, 3, pp.2637-2642. ⟨10.1021/am200442r⟩. ⟨hal-00670284⟩