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2 article(s) from Hellé, Sophie

Fluorescent bioinspired albumin/polydopamine nanoparticles and their interactions with Escherichia coli cells

Eloïse Equy,
Jordana Hirtzel,
Sophie Hellé,
Béatrice Heurtault,
Eric Mathieu,
Morgane Rabineau,
Vincent Ball and
Lydie Ploux

Beilstein J. Nanotechnol. 2023, 14, 1208–1224, doi:10.3762/bjnano.14.100

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Figure 1: Molecules of (a) lysine (K) and (b) glutamate (E). (c) Interactions between dopamine and KE sequenc...

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Figure 2: (a) Photographic image of a dopamine solution. Main reactions leading to an auto-polymerization of ...

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Figure 3: Solutions and sizes of pristine and fluorescent BSA/PDA NPs. (a) Evidence of the inhibition of a PD...

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Figure 4: Absorption and emission spectra of pristine BSA/PDA NPs, Ox-BSA/PDA NPs, FITC-BSA/PDA NPs, and RhBI...

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Figure 5: Fluorescence characterization of E. coli cultures with FITC-BSA/PDA NPs, free FITC, RhBITC-BSA/PDA ...

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Figure 6: Localization of the fluorescence emission related to E. coli cells. (a) Orthogonal views extracted ...

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Figure 7: Growth inhibition of E. coli populations with pristine BSA/PDA NPs from 0.2 to 2 mg/mL concentratio...

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Full Research Paper

Published 22 Dec 2023

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Antimicrobial and mechanical properties of functionalized textile by nanoarchitectured photoinduced Ag@polymer coating

Jessica Plé,
Marine Dabert,
Helene Lecoq,
Sophie Hellé,
Lydie Ploux and
Lavinia Balan

Beilstein J. Nanotechnol. 2023, 14, 95–109, doi:10.3762/bjnano.14.11

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Figure 1: Cotton textile coated with Ag@PEG600DA (a), Ag@PEG600DA/PETIA (1:1) (b) and inserted images of PEG6...

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Figure 2: UV–vis spectroscopy monitoring of 100 µm-thick Ag@PEG600DA (a) and Ag@PEG600DA/PETIA (b) coatings, ...

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Figure 3: Reflectance measurements and corresponding images of Ag@polymer (PEG600DA and PEG600DA/PETIA) funct...

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Figure 4: SEM of the 100 µm-thick Ag@PEG600DA (a) and Ag@PEG600DA/PETIA (b) coatings.

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Figure 5: TEM cross sections of the Ag@PEG600DA (a) and the Ag@PEG600DA/PETIA (b) with the selected area elec...

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Figure 6: Images of flexible Ag@PEG600DA (a) and Ag@PEG600DA/PETIA (b) samples; inserted post-scratch tests.

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Figure 7: Influence of 500 and 1000 abrasion cycles on the surface of an Ag@PEG600DA coating (a) and on the t...

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Figure 8: Influence of 500 and 1000 abrasion cycles on the surface of an Ag@PEG600DA/PETIA coating (1:1) (a) ...

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Figure 9: Rheological characteristics of uncoated textile (a), PEG600DA/PETIA (b) and Ag@PEG600DA/PETIA (3 an...

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Figure 10: Colony forming units (CFU) per mL of suspension calculated from OD_600nm measurements of E. coli (a)...

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Figure 11: Growth inhibition of bacteria (E. coli) for different sample immersion times (a), and for the corre...

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Figure 12: Growth inhibition of fungus (C. albicans) for different sample immersion times (a), and for the cor...

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Figure 13: Plate diffusion test for the observation of growth inhibition zones of E. coli and C. albicans afte...

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Full Research Paper

Published 12 Jan 2023

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