Listar por tema "self-assembly"
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2D-Self-Assembled Organic Materials in Undoped Hole Transport Bilayers for Efficient Inverted Perovskite Solar Cells
American Chemical Society (2023-05-10)Interfaces between photoactive perovskite layer and selective contacts play a key role in the performance of perovskite solar cells (PSCs). The properties of the interface can be modified by the introduction of molecular ... -
A Shape‐Adaptable Organometallic Supramolecular Coordination Cage for the Encapsulation of Fullerenes
Wiley (2018-10-01)The development of three‐dimensional supramolecular coordination complexes (SCCs), with cavities suitable for guest binding, is of great interest because these materials are useful in a large number of applications. Herein, ... -
A Size‐Flexible Organometallic Box for the Encapsulation of Fullerenes
Wiley (2019-04-19)A palladium‐cornered molecular square with four pyrene‐bis(imidazolylidene) bridging ligands is reported. This metallo‐polygon can encapsulate C60 and C70. The X‐ray diffraction structures of the empty cage as well as the ... -
Adsorption of Rose Bengal on a self-assembled fibrillar network affords a thermally switchable oxygenation photocatalyst and a thermochromic soft material
Elsevier (2019-10-03)Rose Bengal (RB) can be homogeneously dispersed in dichloromethane by its adsorption on the fibrillar network of a molecular gel formed in this solvent. The RB loaded gel was visualized by confocal scanning laser microscopy, ... -
Cation-Driven Self-Assembly of a Gold(I)-Based Metallo-Tweezer
Wiley (2017-08-07)A combination of self-complementary pi-pi-stacking interactions and metallophilic interactions triggered the self-assembly of a new digold(I) metallo-tweezer in the presence of several types of M+ ions. Titrations by ... -
Chemically Tunable Formation of Different Discrete, Oligomeric, and Polymeric Self‐Assembled Structures from Digold Metallotweezers
(2018)Digold metallotweezers whose complex supramolecular landscape is controlled by adding a series of metal cations are described. The metallotweezers have a strong tendency to form interesting supramolecular structures on ... -
Competition versus Cooperation in Catalytic Hydrogelators for anti-Selective Mannich Reaction
Wiley (2017-07-21)Chemical systems find similarities in different sociological and biological processes, in which the entities compete or cooperate for a favorable outcome. The structural and functional adaptations leading to emergent ... -
Deamidation of pseudopeptidic molecular hydrogelators and its application to controlled release
Elsevier (2017-07)Hypothesis The incorporation of a succinic acid-derived moiety in amino acid derivatives would favor an intramolecular catalysis of a deamidation reaction. Such reaction would permit controlled disassembly of molecular ... -
Doubly chiral pseudopeptidic macrobicyclic molecular cages: Water-assisted dynamic covalent self-assembly and chiral self-sorting
Elsevier (2022-06-27)Taking advantage of the dynamic covalent chemistry approach, four different cages were synthesized by condensation of tripodal pseudopeptides with 4,4′-biphenyldicarboxyaldehyde. Whereas undesired products of polymeric ... -
Effect of Hyaluronic Acid on the Self-Assembly of a Dipeptide-Based Supramolecular Gel
Wiley (2023-10-02)The combination of polymers and low molecular weight (LMW) compounds is a powerful approach to prepare new supramolecular materials. Here we prepare two-component hydrogels made by a well-known and biologically active ... -
Freezing Capture of Polymorphic Aggregates of Bolaamphiphilic L-Valine-Based Molecular Hydrogelators
WILEY-VCH Verlag GmbH & Co. KGaA (2014-05)Nanostructured xerogels have been prepared by the freeze-drying of hydrogels and aggregates formed by bolaamphiphilic l-valine derivatives after aging under different environmental conditions. A wide variety of shapes and ... -
Functional gels as microreactors
Universitat Jaume I (2016-11-04)Functionalized Hydrogels upon self-assembly demonslrate enzyme like catalysis owing to the formatin of hydrophobic pockets, increased local concentration of the catalytic sites, pKa change, pH shift etc. Here we present ... -
Glutathione-responsive molecular nanoparticles from a dianionic bolaamphiphile and their use as carriers for targeted delivery
Elsevier (2021-11-06)The formation in aqueous media of molecular nanoparticles from a bolaamphiphile (SucIleCsa) incorporating a disulfide moiety is described. The particles can be loaded efficiently with the lipophilic mitochondrial marker ... -
High-Tech Applications of Self-Assembling Supramolecular Nanostructured Gel-Phase Materials: From Regenerative Medicine to Electronic Devices
John Wiley & Sons (2008)It is likely that nanofabrication will underpin many technologies in the 21st century. Synthetic chemistry is a powerful approach to generate molecular structures that are capable of assembling into functional nanoscale ... -
Imidazolium based gemini amphiphiles derived from L-valine. Structural elements and surfactant properties
Elsevier (2021-09-02)Imidazolium amphiphiles often display excellent surfactants properties, while amide functionalities and chirality can implement self-assembly. The introduction of these functionalities in imidazolium gemini amphiphiles is ... -
Improvement of molecular gel formation efficiency by adjusting preorganization of amino acid-derived flexible molecules. A NMR and thermodynamic study
Wiley (2016)The efficiency of the formation of molecular gels of simple de-rivatives of l-valineand l-isoleucine is greatl yimproved in dif-ferent organic solvents when ahexyl fragment is replaced byabulkier cyclohexyl one. Astudy ... -
Morphology Diversity of L‐Phenylalanine‐Based Short Peptide Supramolecular Aggregates and Hydrogels
Wiley (2018-08)Supramolecular aggregates and hydrogels of diverse morphologies can be obtained by replacing the widely studied aromatic N‐capping of phenylalanine derivatives by long alkyl chains. Simple changes in chain length and number ... -
Open chain pseudopeptides as hydrogelators with reversible and dynamic responsiveness to pH, temperature and sonication as vehicles for controlled drug delivery
Elsevier (2022-01-25)A new family of open chain-pseudopeptidic compounds displaying a pendant carboxylic group have been prepared with excellent yields. Their self-assembly has been studied under different conditions and in different media. ... -
Peptide-Based Molecular Hydrogels as Supramolecular Protein Mimics
Wiley (2017-01-23)This Minireview concerns recent advances in the design, synthesis, and application of low molecular-weight peptidic hydrogelators. The sequence-specific combinations of amino acid side chain functionalities combined with ... -
Photomodulation of DNA‐Templated Supramolecular Assemblies
Wiley (2018-01-12)A new type of DNA ligand that contains a phosphate‐binding group and a photoresponsive azobenzene moiety is reported. When the azobenzene is in trans configuration, the ligand binds to the minor groove of a double‐stranded ...