Chiral supramolecular gold-cysteine nanoparticles: Chiroptical and nonlinear optical properties - Université Claude Bernard Lyon 1 Accéder directement au contenu
Article Dans Une Revue Progress In Natural Science-materials International Année : 2016

Chiral supramolecular gold-cysteine nanoparticles: Chiroptical and nonlinear optical properties

Résumé

Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts to noble metal surfaces. We report a simple synthetic approach for the production of chiral gold-cysteine polymeric nanoparticles soluble in water. Conjugation of cysteine with gold in a polymeric way, leading to ~50 nm diameter nanoparticles, resulted in the generation of new characteristic circular dichroism (CD) signals in the region of 250–400 nm, whereas no CD signal changes were found with cysteine alone. We also investigate their nonlinear optical properties after two-photon absorption. Two-photon emission spectra and first hyper-polarizabilities, as obtained by the hyper-Rayleigh scattering technique, of these particles are presented.
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hal-02289459 , version 1 (22-01-2021)

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Paternité - Pas d'utilisation commerciale - Pas de modification

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Isabelle Russier-Antoine, Franck Bertorelle, Alexander Kulesza, Antonin Soleilhac, Amina Bensalah-Ledoux, et al.. Chiral supramolecular gold-cysteine nanoparticles: Chiroptical and nonlinear optical properties. Progress In Natural Science-materials International, 2016, 26 (5), pp.455-460. ⟨10.1016/j.pnsc.2016.08.008⟩. ⟨hal-02289459⟩
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