A5022347352- Surfactants and Colloidal Systems
- Lipid Membrane Structure and Behavior
- Advanced Polymer Synthesis and Characterization
- Spectroscopy and Quantum Chemical Studies
- Hydrogels: synthesis, properties, applications
- Nanoparticle-Based Drug Delivery
- Polymer Surface Interaction Studies
- Molecular Junctions and Nanostructures
- RNA Interference and Gene Delivery
- Advanced biosensing and bioanalysis techniques
- Mechanical and Optical Resonators
- Molecular Sensors and Ion Detection
- Hemoglobin structure and function
- Nonlinear Dynamics and Pattern Formation
- Photochemistry and Electron Transfer Studies
- Advanced Drug Delivery Systems
- Spectroscopy Techniques in Biomedical and Chemical Research
- Chemical Reaction Mechanisms
- Pickering emulsions and particle stabilization
- Fluorine in Organic Chemistry
- Proteins in Food Systems
- Enhanced Oil Recovery Techniques
- Electrochemical Analysis and Applications
- Quantum, superfluid, helium dynamics
- High voltage insulation and dielectric phenomena
Universidade de Santiago de Compostela
2007-2019
Consejo Nacional de Investigaciones Científicas y Técnicas
2008
University of Buenos Aires
2008
Massachusetts Institute of Technology
2007
Max Planck Institute for Biophysical Chemistry
2002-2005
Jagiellonian University
2004
The incidence of the structural features on self-assembly different poloxamines (the conventional sequential Tetronic 304, 901, 904, 908, 1107, 1301, and 1307; a reverse-sequential counterpart 150R1; chemically modified derivative, N-methylated 1107) was thoroughly studied in 10 mM HCl by means π−A isotherm, surface tension, pyrene fluorescence measurements. size distribution aggregates were investigated dynamic static light scattering, morphology probed transmission electron microscopy....
The interactions between poloxamer 407 (Pluronic F127, PF127) and two hydrophilic derivatives of β-cyclodextrin, i.e., hydroxypropyl-β-cyclodextrin (HPβCD; molar substitution (MS) 0.65) methylated-β-cyclodextrin (MβCD; MS 0.57), were characterized by means surface tension measurements, π−A isotherms, isoperibol microcalorimetry, 1H NMR, rheometry. An effective complexation with the CDs was evidenced as a change in pressure isotherm PF127 on subphase CD solution, positive excess being...
A series of semifluorinated n-alkanes (SFAs) the general formula F(CF2)m(CH2)nH, (in short FmHn) where m = 10 and n 6−20, have been synthesized employed for Langmuir monolayer characterization. Surface pressure electric surface potential measurements were obtained under a variety experimental conditions such as spreading volume, subphase temperature, compression speed. The experiments complemented with Brewster angle microscopy results which enabled both direct visualization monolayers...
Photoresponsive poly(N,N-dimethylacrylamide-co-methacryloyloxyazobenzene) (DMA−MOAB) and temperature-responsive Pluronic F127 (F127) copolymers were blended to obtain systems responsive both stimuli that are potentially useful for pharmaceutical formulations. The random DMA−MOAB copolymer undergoes a trans cis isomerization when irradiated by 366 nm light, which modifies the air−water interfacial behavior self-associative properties of copolymer. Under dark conditions azobenzene groups in...
A comprehensive analysis of mixed monolayers simvastatin and several varieties Pluronic [poly(ethylene oxide) (PEO)−poly(propylene (PPO)−PEO] Tetronic (X-shaped PEO−PPO) at the air−water interface was carried out with aim obtaining predictive information about performance systems bulk, namely, capability micelles to host drug physical stability drug-loaded under dilution. π−A isotherms recorded air/HCl evidenced negative deviations from ideal behavior for copolymers short PPO blocks, that...
The triblock Pluronic F127 was modified by introducing poly(N-isopropylacrylamide) (PNIPAM) at both the poly(ethylene oxide) ends, and pentablock copolymer so-prepared characterized gel permeation chromatography (1)H NMR. degree of polymerization NIPAM blocks two ends 7. solution behavior microstructure aggregates in water aqueous salt were examined compared with UV-visible absorption spectroscopy, microdifferential scanning calorimetry, dynamic light scattering (DLS), small-angle neutron...
J-Aggregates of the amphiphilic symmetrical cyanine dye 5,5'-6,6'-tetrachloro-1,1'-diethyl-3,3'-dioctadecyl-benzimidazolocarbocyanine toluenesulfonate are formed in monolayers pure at air−water interface as well mixtures with coaggregates hexadecane (HD) and methyl octadecanoate (MOD), respectively, a molar ratio dye/coaggregate 1:1. The have been characterized by surface pressure−area potential−area isotherms reflection spectroscopy. position J-aggregate band that is red-shifted respect to...
Formation of J-aggregates the amphiphilic merocyanine 3-octadecyl-2-[3,3-dicyano-allyliden]-benzoxazolin (S118) in monolayers at air−water interface has been investigated absence and presence additives (coaggregates, CA) octadecane, methylstearate, octadecanoic acid, octadecanol, respectively, molar ratio S118/CA = 1:1. The have characterized by surface pressure−area potential−area isotherms, morphology was studied Brewster angle microscopy. Chromophore association reflection spectroscopy....
Abstract— Various newly synthesized substances containing the same chromophore as PRODAN were subjected to a spectroscopic study. The new substances, ω‐[6‐( N ‐meth‐yl‐ ‐alkylamino)naphthoyl]alcanoic acids (MANA), possess polar groups and alkyl chains of variable length that make them potentially useful fluorescent probes in membrane studies. This paper reports on their properties various pure solvents. Their Stokes shifts are given related different physicochemical A theoretical study...