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Quantum dot–polymethacrylate composites for the analysis of NOx by fluorescence spectroscopy
Elsevier (2012)A new type of hybrid materials composed by core–shell (CdSe/ZnS) quantum dots adsorbed on polymethacrylate surfaces has been synthesized and characterized, specially by means of time-resolved fluorimetry. The ability of ... -
Quantum mechanics/molecular mechanics studies of the mechanism of cysteine protease inhibition by peptidyl-2,3-epoxyketones
Royal Society of Chemistry (2017)Cysteine proteases are the most abundant proteases in parasitic protozoa and they are essential enzymes to the life cycle of several of them, thus becoming attractive therapeutic targets for the development of new ... -
Quantum Mechanics/Molecular Mechanics Studies of the Mechanism of Cysteine Proteases Inhibition by Dipeptidyl Nitroalkenes
Wiley (2020-02-11)In this work a computational study of the mechanism of inhibition of cruzain, rhodesain, and cathepsin L cysteine proteases by the dipeptidyl nitroalkene Cbz‐Phe‐Ala‐CH=CH‐NO2 has been carried out by means of molecular ... -
Radical Mechanism in the Elimination of 2-Arylsulfinyl Esters
American Chemical Society (2012-05)The mechanism of the dehydrosulfenylation of 2-arylsulfinyl esters was investigated. The reaction was found to follow a homolytic cleavage mechanism as verified by electrospray ionization tandem mass spectrometry and ... -
Ratiometric fluorescence sensing of phenylalanine derivatives by synthetic macrocyclic receptors
Elsevier (2010)The supramolecular analytical behavior of eight pseudopeptidic fluorescent receptors (1a-c, 2a-c, 3, 4) has been studied. The receptors are either macrocyclic or open chain derivatives based on the naphthalene chromophore. ... -
Rational design of a supramolecular gel based on a Zn(II)–salophen bis-dipeptide derivative
Royal Society of Chemistry (2016)We report the rational design and synthesis of a supramolecular gelator based on a Zn(II)–salophen derivative functionalized with L-valine residues. This compound is able to gelate acetonitrile by self-assembly into helical ... -
Rational Design of Heat-Set and Specific-Ion-Responsive Supramolecular Hydrogels Based on the Hofmeister Effect
WILEY-VCH Verlag GmbH & Co. KGaA (2014-10)Smart supramolecular hydrogels have been prepared from a bolaamphiphilic l-valine derivative in aqueous solutions of different salts. The hydrogels respond selectively to different ions and are either reinforced or weakened. ... -
Rational Design of Simple Organocatalysts for the HSiCl3 Enantioselective Reduction of (E)-N-(1-Phenylethylidene)aniline
MDPI (2021-11-18)Prolinamides are well-known organocatalysts for the HSiCl3 reduction of imines; however, custom design of catalysts is based on trial-and-error experiments. In this work, we have used a combination of computational ... -
Re-programming Hydrogel Properties Using a Fuel-Driven Reaction Cycle
American Chemical Society (2020-03-04)Nature uses catalysis as an indispensable tool to control assembly and reaction cycles in vital non-equilibrium supramolecular processes. For instance, enzymatic methionine oxidation regulates actin (dis-)assembly, and ... -
Recent developments in the applications of palladium complexes bearing N-heterocyclic carbene ligands
Bentham Science Publishers (2011-01-09)N-heterocyclic carbene (NHC) ligands have become ubiquitous ligands in the preparation of metal complexes with new catalytic applications. Mainly due to their applications in C-C bond formation reactions, a plethora of ... -
Recognition of Free Tryptophan in Water by Synthetic Pseudopeptides: Fluorescence and Thermodynamic Studies
WILEY-VCH Verlag GmbH & Co. KGaA (2014-06)Pseudopeptidic receptors containing an acridine unit have been prepared and their fluorescence response to a series of amino acids was measured in water. Free amino acids, not protected either at the C or the N terminus, ... -
Recycling of Cr/Ni/Cu plating wastes as black ceramic pigments
Elsevier (2018)The non-ferrous metal industry, such as Cr/Ni/Cu plating, produces acid sludge which is usually neutralized with lime slurry in batch processes, and the resulting waste is dewatered by vacuum filtration or filter-pressing. ... -
Red ceramic pigments of terbium-doped ceria prepared through classical and non-conventional coprecipitation routes
Elsevier (2010)Reddish ceramic pigments based on cerianite compositions Ce1−xTbxO2 (x = 0.1, 0.2 and 0.3) and Ce0.9Tb0.05Y0.05O2 have been prepared. Firstly, the optimal composition giving the best red colour was selected (Ce0.9Tb0.1O2) ... -
Red-brown ceramic pigments based on chromium doped ferrian armalcolite, effect of mineralizers
Elsevier (2017)A new red-brown ceramic pigment based on chromium-doped ferrian armalcolite have been synthesized and characterized. (MgFe)(CrxTi3−xFe)O10 powders (x=0–0.3) fired at 1200 °C crystallize ferrian armalcolite as the only ... -
Reduction-Responsive Cationic Vesicles from Bolaamphiphiles with Ionizable Amino Acid or Dipeptide Polar Heads
ACS Publications (2023)This paper presents a study of the aggregation of cationic bolaamphiphilic molecules into vesicles. These molecules are based on a cystamine core with protonated terminal dipeptide groups. The study found that vesicles ... -
Reduction-triggered Disassembly of Organic Cationic Nanorods Produces a Cysteine Protease Mimic (Miravet et al.)
Wiley (2023)The emergence of catalytic activity associated with a disassembly process is reported, reminiscent of complex biological systems. A cystine derivative with pendant imidazole groups self-assembles into cationic nanorods ... -
Regioselective Opening of Nitroepoxides with Unsymmetrical Diamines
American Chemical Society (2018-01)Nitroepoxides are easily transformed into benzodiazepines, tetrahydrobenzodiazepines, imidazopyridines, and N-alkyl tetrahydroquinoxalines by treatment with 2-aminobenzylamines, 2-aminopyridines, and N-alkyl 1,2-diaminobenzenes, ... -
Regioselective ring opening and isomerization reactions of 3,4-epoxyesters catalyzed by boron trifluoride
American Chemical Society (2011)Efficient ring opening of 3,4-epoxyesters with alcohols to produce 4-alkoxy-3-hydroxyesters and their isomerization into 4-ketoesters using boron trifluoride as the catalyst are presented. Both transformations are simple ... -
Remarkable increase in basicity associated with supramolecular gelation
Royal Society of Chemistry (2009)L-Proline derivatives which are able to form supramolecular gels show an amazing basicity increase in the aggregated (gel) state as compared to solution. As a result they behave as enantioselective catalysts for the aldol ... -
Residence time distribution, a simple tool to understand the behaviour of polymeric mini-flow reactors
Royal Society of Chemistry (2012-09)A simple method for the determination of the residence time distribution (RTD) of different polymer-based mini-flow reactors has been developed. The flow patterns have been adjusted employing the axial dispersion model, ...