Clément Roux
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View article: Synthesis and Emission Dynamics of Sub‐3 nm Upconversion Nanoparticles
Synthesis and Emission Dynamics of Sub‐3 nm Upconversion Nanoparticles Open
Reducing the size of upconversion nanoparticles (UCNPs) down to a few nm yields luminescent materials containing a very small number of emitters. Considering the bottom limit of one activator per particle ultrasmall UCNPs offer an unpreced…
View article: Parallel on-chip micropipettes enabling quantitative multiplexed characterization of vesicle mechanics and cell aggregates rheology
Parallel on-chip micropipettes enabling quantitative multiplexed characterization of vesicle mechanics and cell aggregates rheology Open
Micropipette aspiration (MPA) is one of the gold standards for quantifying biological samples' mechanical properties, which are crucial from the cell membrane scale to the multicellular tissue. However, relying on the manipulation of indiv…
View article: Synthesis and emission dynamics of sub-3 nm upconversion nanoparticles
Synthesis and emission dynamics of sub-3 nm upconversion nanoparticles Open
Reducing the size of upconversion nanoparticles (UCNPs) down to a few nm yields unique luminescent materials containing a very small number of emitters. Considering the bottom limit of one activator per particle, such ultrasmall UCNPs offe…
View article: Parallel on-chip micropipettes enabling quantitative multiplexed characterization of vesicle mechanics and cell aggregates rheology
Parallel on-chip micropipettes enabling quantitative multiplexed characterization of vesicle mechanics and cell aggregates rheology Open
Micropipette aspiration (MPA) is one of the gold standards to quantify biological samples’ mechanical properties, which are crucial from the cell membrane scale to the multicellular tissue. However, relying on the manipulation of individua…
View article: Synthesis and emission dynamics of sub-3 nm single-emitter upconversion nanoparticles
Synthesis and emission dynamics of sub-3 nm single-emitter upconversion nanoparticles Open
Reducing the size of upconversion nanoparticles (UCNPs) down to a few nm yields unique luminescent materials containing a very small number of emitters. Considering the bottom limit of one activator per particle, such ultrasmall UCNPs offe…
View article: PVP-coated ultrasmall Nd-doped Gd<sub>2</sub>O<sub>2</sub>S nanoparticles for multimodal imaging
PVP-coated ultrasmall Nd-doped Gd<sub>2</sub>O<sub>2</sub>S nanoparticles for multimodal imaging Open
Versatile synthesis for all rare earth oxysulfides (RE 2 O 2 S) and evaluation of the potential of ultrasmall Gd 0.8 Nd 1.2 O 2 S as a multimodal contrast agent.
View article: Synthesis and emission dynamics of ultrasmall (sub-3 nm) UCNPs containing a reduced number of emitters
Synthesis and emission dynamics of ultrasmall (sub-3 nm) UCNPs containing a reduced number of emitters Open
Reducing the size of rare earth, alkali metal fluoride crystals formulated as upconverting nanoparticles (UCNP) down to few nm can lead to unique luminescent devices due to a reduced number of emitters. The synthesis of such Na(Gd-Yb)F4:Tm…
View article: Heterogeneous Oxysulfide@Fluoride Core/Shell Nanocrystals for Upconversion-Based Nanothermometry
Heterogeneous Oxysulfide@Fluoride Core/Shell Nanocrystals for Upconversion-Based Nanothermometry Open
Lanthanide (Ln3+)-doped upconversion nanoparticles (UCNPs) often suffer from weak luminescence, especially when their sizes are ultrasmall (less than 10 nm). Enhancing the upconversion luminescence (UCL) efficiency of ultrasmall UCNPs has …
View article: Top-Down Synthesis of Luminescent Microplastics and Nanoplastics by Incorporation of Upconverting Nanoparticles for Environmental Assessment
Top-Down Synthesis of Luminescent Microplastics and Nanoplastics by Incorporation of Upconverting Nanoparticles for Environmental Assessment Open
The occurrence of micro- and nanoplastics is a major environmental problem. Especially for nanoplastics due to their easy bioavailability and unknown impact on living organisms. The monitoring of these extremely small particles during thei…
View article: Top-down synthesis of luminescent microplastics and nanoplastics by incorporation of upconverting nanoparticles for environmental assessment
Top-down synthesis of luminescent microplastics and nanoplastics by incorporation of upconverting nanoparticles for environmental assessment Open
Polyethylene model particle is synthesized by a top-down approach with effective incorporation of upconverting nanoparticles. The particles with irregular shapes, similar to those found in the environment, are trackable under 980 nm irradi…
View article: Heteroaggregates of Polystyrene Nanospheres and Organic Matter: Preparation, Characterization and Evaluation of Their Toxicity to Algae in Environmentally Relevant Conditions
Heteroaggregates of Polystyrene Nanospheres and Organic Matter: Preparation, Characterization and Evaluation of Their Toxicity to Algae in Environmentally Relevant Conditions Open
The environmental fate and behavior of nanoplastics (NPs) and their toxicity against aquatic organisms are under current investigation. In this work, relevant physicochemical characterizations were provided to analyze the ecotoxicological …
View article: Enhancing the yield of calcium carbonate precipitation by obstacles in laminar flow in a confined geometry
Enhancing the yield of calcium carbonate precipitation by obstacles in laminar flow in a confined geometry Open
Flow-driven precipitation experiments are performed in model porous media shaped within the confinement of a Hele-Shaw cell.
View article: Microstructure\nCharacterization of Oceanic Polyethylene\nDebris
Microstructure\nCharacterization of Oceanic Polyethylene\nDebris Open
Plastic\npollution has become a worldwide concern. It was demonstrated\nthat plastic breaks down to nanoscale particles in the environment,\nforming so-called nanoplastics. It is important to understand their\necological impact, but their …
View article: Microstructure Characterization of Oceanic Polyethylene Debris
Microstructure Characterization of Oceanic Polyethylene Debris Open
Plastic pollution has become a worldwide concern. It was demonstrated that plastic breaks down to nanoscale particles in the environment, forming so-called nanoplastics. It is important to understand their ecological impact, but their stru…
View article: Role of Polymer Micelles in the Delivery of Photodynamic Therapy Agent to Liposomes and Cells
Role of Polymer Micelles in the Delivery of Photodynamic Therapy Agent to Liposomes and Cells Open
The use of nanocarriers for hydrophobic photosensitizers, in the context of photodynamic therapy (PDT) to improve pharmacokinetics and bio-distribution, is well-established. However, the mechanisms at play in the internalization of nanocar…
View article: Rational design of block copolymer self-assemblies in photodynamic therapy
Rational design of block copolymer self-assemblies in photodynamic therapy Open
Photodynamic therapy is a technique already used in ophthalmology or oncology. It is based on the local production of reactive oxygen species through an energy transfer from an excited photosensitizer to oxygen present in the biological ti…
View article: Evaluation of upconverting nanoparticles towards heart theranostics
Evaluation of upconverting nanoparticles towards heart theranostics Open
Restricted and controlled drug delivery to the heart remains a challenge giving frequent off-target effects as well as limited retention of drugs in the heart. There is a need to develop and optimize tools to allow for improved design of d…
View article: A photochemical determination of luminescence efficiency of upconverting nanoparticles
A photochemical determination of luminescence efficiency of upconverting nanoparticles Open
Upconverting nanoparticles are a rising class of non-linear luminescent probes burgeoning since the beginning of the 2000’s, especially for their attractiveness in theranostics. However, the precise quantification of the light delivered re…
View article: A photochemical determination of luminescence efficiency of upconverting nanoparticles
A photochemical determination of luminescence efficiency of upconverting nanoparticles Open
Upconverting nanoparticles are a rising class of non-linear luminescent probes burgeoning since the beginning of the 2000’s, especially for their attractiveness in biology. However, the precise quantification of the light delivered remains…