A5067547000- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Supramolecular Chemistry and Complexes
- Molecular Sensors and Ion Detection
- Crystallography and molecular interactions
- Supramolecular Self-Assembly in Materials
- Nanopore and Nanochannel Transport Studies
- Advanced biosensing and bioanalysis techniques
- Membrane Separation Technologies
- Metal-Organic Frameworks: Synthesis and Applications
- Membrane-based Ion Separation Techniques
- Luminescence and Fluorescent Materials
- Fuel Cells and Related Materials
- DNA and Nucleic Acid Chemistry
- Lipid Membrane Structure and Behavior
- Chemical Synthesis and Analysis
- Analytical Chemistry and Sensors
- Membrane Separation and Gas Transport
- Enzyme function and inhibition
- RNA Interference and Gene Delivery
- Covalent Organic Framework Applications
- Crystal structures of chemical compounds
- Porphyrin and Phthalocyanine Chemistry
- Conducting polymers and applications
- Synthesis and Catalytic Reactions
Institut Européen des Membranes
2016-2025
Centre National de la Recherche Scientifique
2016-2025
Université de Montpellier
2016-2025
École Nationale Supérieure de Chimie de Montpellier
2016-2025
Sun Yat-sen University
2015-2024
Babeș-Bolyai University
2024
Weatherford College
2020
Robert Bosch (Germany)
2020
Centre Occitanie-Montpellier
2015-2017
Institut de Science et d'Ingénierie Supramoléculaires
2002-2016
Organic cocrystals obtained from multicomponent self-assembly have garnered considerable attention due to their distinct phosphorescence properties and broad applications. Yet, there been limited reports on cocrystal systems that showcase efficient deep-red near-infrared (NIR) charge-transfer (CT) phosphorescence. Furthermore, effective strategies modulate the emission pathways of both fluorescence remain underexplored. In this work, we dedicated our work four self-assembled called "pyrene...
Dynamic chemical devices involve morphological or constitutional modifications in molecular supramolecular systems, induced by internal external physical triggers. Reversible changes shape result motions and define motional dynamic presenting mechanical-like actions of various types. Suitably designed polyheterocyclic strands such as compounds 1–5 wrap into helical conformations. The binding lead(II) ions to the coordination subunits contained strand leads complete uncoiling yields a...
The self-assembly of ureido crown-ether derivatives has been examined in homogeneous solution, the solid state, and planar bilayer membranes. is driven by head-to-tail hydrogen bonding between urea functional groups. Dimers higher oligomers are formed CDCl3 solution as assessed change NH chemical shift a function concentration. Single-crystal X-ray diffraction shows that an antiparallel association ureas produces columnar channels composed face-to-face crown ethers. Powder studies also show...
Dipolar water wires stabilize quartets of ureido imidazole compounds (I-quartets) in a manner reminiscent stabilization guanine (G) by cation templating (see picture). Detailed facts importance to specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted the authors. Please note: The publisher is responsible for content functionality any supporting information supplied Any queries (other than...
Aquaporins (AQPs) are biological water channels known for fast transport (∼10(8)-10(9) molecules/s/channel) with ion exclusion. Few synthetic have been designed to mimic this high permeability, and none reject ions at a significant level. Selective translocation has previously shown depend on water-wires spanning the AQP pore that reverse their orientation, combined correlated channel motions. No quantitative correlation between dipolar orientation of effects proton reported. Here, we use...
Dynamic covalent polymers have emerged as intriguing, new materials with unique properties. In this article, their synthesis, properties, and applications in the biomedical field been reviewed.
The imine-bond formation on chitosan backbones occurs with very low yields in aqueous solutions and is significantly improved hydrogels or solid state films. dynamic exchanges of imino-R groups colour transfer can occur at the interfaces between various
Going through the channels: Synthetic scaffolds mimicking natural protein functions have been developed that allow water/proton or only water translocation pathways in bilayer membranes (see picture). The ion-exclusion behaviors of synthetic systems are based on hydrophobic dimensional steric effects, while hydrodynamic effects appear to be less important.
Natural KcsA K(+) channels conduct at high rates with an extraordinary selectivity for cations, excluding the Na(+) or other cations. Biomimetic artificial have been designed in order to mimick ionic activity of KcSA channels, but simple systems presenting K(+)/Na(+) are rare. Here we report ion channel H-bonded hexyl-benzoureido-15-crown-5-ether, where cations highly preferred The K(+)-channel conductance is interpreted as arising formation oligomeric cooperative resulting cation-induced...
Chiral dipolar oriented water wires are observed inside artificial channels embedded in supported bilayer membranes.
A hydrophobic light-driven rotary motor is functionalized with two 18-crown-6 macrocycles and incorporated into phospholipid bilayers. In the presence of this molecular construct, fluorescence assays patch clamp experiments show formation selective alkali ion channels through membrane. Further, they reveal a strongly accelerated transport mechanism under light irradiation. This increase fractional activity (up to 400%) attributed out-of-equilibrium actuation dynamics motors, which help...
The binding of lead(II) cations to the terpyridine-type subunits helical ligand 1 leads self-assembly different polynuclear metallosupramolecular architectures nanometric size. Three entities are generated and may be interconverted as a function metal/ligand stoichiometry: [4 × 4]Pb16II grid-type array 2, # 4]Pb12II double-cross species 4, an intermediate complex 3. structures 2 4 have been confirmed by X-ray crystallography; that 3 is based on NMR spectral data. interconversion three...
Abstract The polyheterocyclic strands 1‐H and 2‐H adopt a helical shape enforced by the pyridine–pyrimidine helicity codon. crystal structure of shows formation stacks dimers right‐ left‐handed individual helices. Treatment with silver triflate results in generation double‐helical entities 1‐DH 2‐DH , containing two ions. NMR studies determination indicate that duplex is stabilized coordination each Ag + ion to terminal bipyridine units, one from strand, pronounced π–π stacking interactions...
Transport systems: Long-range amplification of G-quadruplex self-organization by K+ ion templating into double dynameric macroscopic films is described. The ordered membrane (see image) contribute to fast electron/proton or Na+/K+ transport the formation directional conduction pathways. Supporting information for this article available on WWW under http://www.wiley-vch.de/contents/jc_2002/2007/z702605_s.pdf from author. Please note: publisher not responsible content functionality any...
Constitutional self-instructed membranes were developed and used for mimicking the adaptive structural functionality of natural ion-channel systems. These are based on dynamic hybrid materials in which functional self-organized macrocycles reversibly connected with inorganic silica through hydrophobic noncovalent interactions. Supramolecular columnar architectures can be generated by reversible confinement within scaffolding mesopores. They structurally determined using X-ray diffraction...
Snapshot of a Strained Ring Benzene and cyclobutadiene possess diametrically opposed properties. The former, hexagonal hydrocarbon with geometry perfectly suited to its bonding arrangement, exhibits unusual stability. latter, two fewer carbons tightly squeezed into the right angles 4-membered ring, rapidly forms dimer relieve considerable geometric electronic strain. Monomeric was first isolated in substantial quantity by confining it within molecular shell, but has eluded full structural...
Dynamic interactive systems are defined by networks of exchanging and reversibly connected objects (supermolecules, polymers, biomolecules, biopolymers, pores, nanoplatforms, surfaces, liposomes, cells). They operate under natural selection to allow spatial/temporal structural/functional adaptability in response internal constitutional or external stimulant factors. Herein we will discuss some selected examples hybrid organic/inorganic materials (SYSMAT), covering (a) the sol-gel resolution...