Florence Babonneau
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View article: Confining calcium oxalate crystal growth in a carbonated apatite-coated microfluidic channel to better understand the role of Randall's plaque in kidney stone formation
Confining calcium oxalate crystal growth in a carbonated apatite-coated microfluidic channel to better understand the role of Randall's plaque in kidney stone formation Open
The successful formation of a carbonated apatite coating inside a micrometer channel is described, which was used to investigate its role on the formation of calcium oxalate crystals in the context of kidney stones.
View article: Greener solvents for the processing of preceramic polycarbosilane: application in the preparation of B <sub>4</sub> C/SiC composites
Greener solvents for the processing of preceramic polycarbosilane: application in the preparation of B <sub>4</sub> C/SiC composites Open
Greener solvents for ceramic precursors leading to hybrid materials for high-performance applications.
View article: Investigation of Carbonate Substitution in Hydroxyapatite by Combining Solid‐state NMR and DFT Calculations
Investigation of Carbonate Substitution in Hydroxyapatite by Combining Solid‐state NMR and DFT Calculations Open
Biological apatites (main constituent of natural bones) correspond to non‐stoichiometric hydroxyapatite HAp, presenting a large variety of ions as substituents (CO 3 2− , F − , SiO 4 4− , Mg 2+ , Na + …). The precise location and configura…
View article: A novel multinuclear solid-state NMR approach for the characterization of kidney stones
A novel multinuclear solid-state NMR approach for the characterization of kidney stones Open
The spectroscopic study of pathological calcifications (including kidney stones) is extremely rich and helps to improve the understanding of the physical and chemical processes associated with their formation. While Fourier transform infra…
View article: Formation of ZrC–SiC Composites from the Molecular Scale through the Synthesis of Multielement Polymers
Formation of ZrC–SiC Composites from the Molecular Scale through the Synthesis of Multielement Polymers Open
In the field of non-oxide ceramic composites, and by using the polymer-derived ceramic route, understanding the relationship between the thermal behaviour of the preceramic polymers and their structure, leading to the mechanisms involved, …
View article: A novel multinuclear solid state NMR approach for the characterization of kidney stones
A novel multinuclear solid state NMR approach for the characterization of kidney stones Open
The spectroscopic study of pathological calcifications (including kidney stones) is extremely rich and helps to improve the understanding of the physical and chemical processes associated with their formation. While FTIR imaging and optica…
View article: Investigating CaOx Crystal Formation in the Absence and Presence of Polyphenols under Microfluidic Conditions in Relation with Nephrolithiasis
Investigating CaOx Crystal Formation in the Absence and Presence of Polyphenols under Microfluidic Conditions in Relation with Nephrolithiasis Open
International audience
View article: Antibacterial Properties of Glycosylated Surfaces: Variation of the Glucosidal Moiety and Fatty Acid Conformation of Grafted Microbial Glycolipids
Antibacterial Properties of Glycosylated Surfaces: Variation of the Glucosidal Moiety and Fatty Acid Conformation of Grafted Microbial Glycolipids Open
Glycosylated surfaces can display antimicrobial properties. It has been shown that sophorolipids can be used to develop biocidal coatings against Gram-positive and Gramnegative bacteria, but with a limited efficiency so far. Therefore, it …
View article: Antibacterial Properties of Glycosylated Surfaces: Variation of the Glucosidal Moiety and Fatty Acid Conformation of Grafted Microbial Glycolipids
Antibacterial Properties of Glycosylated Surfaces: Variation of the Glucosidal Moiety and Fatty Acid Conformation of Grafted Microbial Glycolipids Open
Glycosylated surfaces can display antimicrobial properties. It has been shown that sophorolipids can be used to develop biocidal coatings against Gram-positive and Gramnegative bacteria, but with a limited efficiency so far. Therefore, it …
View article: Antibacterial Properties of Glycosylated Surfaces: Variation of the Glucosidal Moiety and Fatty Acid Conformation of Grafted Microbial Glycolipids
Antibacterial Properties of Glycosylated Surfaces: Variation of the Glucosidal Moiety and Fatty Acid Conformation of Grafted Microbial Glycolipids Open
Glycosylated surfaces can display antimicrobial properties. It has been shown that sophorolipids can be used to develop biocidal coatings against Gram-positive and Gramnegative bacteria, but with a limited efficiency so far. Therefore, it …
View article: Antibacterial properties of glycosylated surfaces: variation of the glucosidal moiety and fatty acid conformation of grafted microbial glycolipids
Antibacterial properties of glycosylated surfaces: variation of the glucosidal moiety and fatty acid conformation of grafted microbial glycolipids Open
Glycosylated surfaces can display antimicrobial properties.
View article: Bone mineral: new insights into its chemical composition
Bone mineral: new insights into its chemical composition Open
Some compositional and structural features of mature bone mineral particles remain unclear. They have been described as calcium-deficient and hydroxyl-deficient carbonated hydroxyapatite particles in which a fraction of the PO 4 3− lattice…
View article: Organization of Bone Mineral: The Role of Mineral–Water Interactions
Organization of Bone Mineral: The Role of Mineral–Water Interactions Open
The mechanism (s) that drive the organization of bone mineral throughout the bone extracellular matrix remain unclear. The long-standing theory implicates the organic matrix, namely specific non-collagenous proteins and/or collagen fibrils…
View article: Chemistry of a series of aluminum-modified polysilazanes: Synthesis, pyrolysis behaviour and microstructural evolution
Chemistry of a series of aluminum-modified polysilazanes: Synthesis, pyrolysis behaviour and microstructural evolution Open
View article: Vibrational Signatures of Calcium Oxalate Polyhydrates
Vibrational Signatures of Calcium Oxalate Polyhydrates Open
The vibrational signatures of the calcium oxalate polyhydrates are investigated using a combination of Density Functional Theory‐Dispersion corrected, Fourier Transform‐ Raman and ‐Infrared (IR) spectroscopies. Most vibrational bands were …
View article: Hydroxyapatites: Key Structural Questions and Answers from Dynamic Nuclear Polarization
Hydroxyapatites: Key Structural Questions and Answers from Dynamic Nuclear Polarization Open
We demonstrate that NMR/DNP (Dynamic Nuclear Polarization) allows an unprecedented description of carbonate substituted hydroxyapatite (CHAp). Key structural questions related to order/disorder and clustering of carbonates are tackled usin…
View article: Molecular Picture of the Adsorption of Ibuprofen and Benzoic Acid on Hydrated Amorphous Silica through DFT-D Calculations Combined with Solid-State NMR Experiments
Molecular Picture of the Adsorption of Ibuprofen and Benzoic Acid on Hydrated Amorphous Silica through DFT-D Calculations Combined with Solid-State NMR Experiments Open
International audience
View article: Amorphous surface layer versus transient amorphous precursor phase in bone – A case study investigated by solid-state NMR spectroscopy
Amorphous surface layer versus transient amorphous precursor phase in bone – A case study investigated by solid-state NMR spectroscopy Open
View article: Antibacterial properties of sophorolipid-modified gold surfaces against Gram positive and Gram negative pathogens
Antibacterial properties of sophorolipid-modified gold surfaces against Gram positive and Gram negative pathogens Open
View article: Interfacial Ca2+ environments in nanocrystalline apatites revealed by dynamic nuclear polarization enhanced 43Ca NMR spectroscopy
Interfacial Ca2+ environments in nanocrystalline apatites revealed by dynamic nuclear polarization enhanced 43Ca NMR spectroscopy Open
View article: Development of a Cradle-to-Grave Approach for Acetylated Acidic Sophorolipid Biosurfactants
Development of a Cradle-to-Grave Approach for Acetylated Acidic Sophorolipid Biosurfactants Open
Microbial production of biosurfactants represents one of the most interesting alternatives to classical petrol-based compounds due to their low toxicity, high biodegradability, and biological production processes from renewable bioresource…
View article: Structural elucidation of silica present in kidney stones coming from Burkina Faso
Structural elucidation of silica present in kidney stones coming from Burkina Faso Open
Hundred kidney stones obtained from the University Hospital of Ouagadougou (Burkina Faso) were finally characterized by a panel of complementary spectroscopic and diffraction tools. The most surprising result is the high occurrence of opal…
View article: Solid State NMR: a Pertinent Tool of Investigation for Calcium Derivatives. The Study Case of Randall’s Plaque.
Solid State NMR: a Pertinent Tool of Investigation for Calcium Derivatives. The Study Case of Randall’s Plaque. Open
Background: The fine structure of calcium oxalates and phosphates (including Randall’s plaques) is revealed by the implementation of the ultra-sensitive NMR (Nuclear Magnetic Resonance) DNP (Dynamic Nuclear Polarization) MAS (Magic Angle S…
View article: Calcium oxalate precipitation by diffusion using laminar microfluidics: toward a biomimetic model of pathological microcalcifications
Calcium oxalate precipitation by diffusion using laminar microfluidics: toward a biomimetic model of pathological microcalcifications Open
The effect of mixing calcium and oxalate precursors by diffusion at miscible liquid interfaces on CaOx crystalline phases is studied using a microfluidic channel.
View article: Calcium-Phosphate Biomineralization Induced by Alkaline Phosphatase Activity in Escherichia coli: Localization, Kinetics, and Potential Signatures in the Fossil Record
Calcium-Phosphate Biomineralization Induced by Alkaline Phosphatase Activity in Escherichia coli: Localization, Kinetics, and Potential Signatures in the Fossil Record Open
Bacteria are thought to play an important role in the formation of calcium-phosphate minerals composing marine phosphorites, as supported by the common occurrence of fossil microbes in these rocks. Phosphatase enzymes may play a key role i…
View article: Nanoscale Platelet Formation by Monounsaturated and Saturated Sophorolipids under Basic pH Conditions
Nanoscale Platelet Formation by Monounsaturated and Saturated Sophorolipids under Basic pH Conditions Open
The self‐assembly behavior of the yeast‐derived bolaamphiphile sophorolipid (SL) is generally studied under acidic/neutral pH conditions, at which micellar and fibrillar aggregates are commonly found, according to the (un)saturation of the…
View article: Synthesis of Uniform, Monodisperse, Sophorolipid Twisted Ribbons
Synthesis of Uniform, Monodisperse, Sophorolipid Twisted Ribbons Open
Control over size monodispersity in chiral self‐assembled systems is important for potential applications like templating, tissue engineering or enantioselective chromatography, just to cite a few examples. In this context, it was reported…
View article: Biocidal Properties of a Glycosylated Surface: Sophorolipids on Au(111)
Biocidal Properties of a Glycosylated Surface: Sophorolipids on Au(111) Open
Classical antibacterial surfaces usually involve antiadhesive and/or biocidal strategies. Glycosylated surfaces are usually used to prevent biofilm formation via antiadhesive mechanisms. We report here the first example of a glycosylated s…