Encontrada(s) 3467 página(s)
APRENDIZAJE UBICUO DE LOS NUEVOS APRENDICES Y BRECHA DIGITAL FORMATIVA
- Pilar Quicios García
- Isabel Ortega Sánchez
- Mª Paz Trillo Miravalles
JOSÉ TOMÁS SOUSA (OLIVENZA). LA CULTURA PORTUGUESA EN LA INFANCIA DEL INFORMANTE
- Álvarez Pérez, Xosé Afonso (coord.)
FIRECCI_AFRICA_2019_S2: REFERENCE FIRE PERIMETERS OBTAINED FROM SENTINEL-2 IMAGERY OVER AFRICA CONTINENTAL FOR THE YEAR 2019
- Stroppiana, Daniela
- Sali, Matteo
- Busetto, Lorenzo
- Boschetti, Mirco
- Franquesa Fuentetaja, Magi
AMPARO LÓPEZ (LA ALAMEDILLA). LA CASA Y EL SER HUMANO
- Álvarez Pérez, Xosé Afonso (coord.)
MIGUEL ÁNGEL VALLECILLO TEODORO (OLIVENZA). COSTUMBRES
- Álvarez Pérez, Xosé Afonso (coord.)
INFORMANTE 1 Y 2 (LA ALAMEDILLA). EL SER HUMANO = SER HUMANO = HUMAN BEING
- Álvarez Pérez, Xosé Afonso (coord.)
FEDERICO-TENA WORLD TRADE HISTORICAL DATABASE : HONDURAS
- Federico, Giovanni
- Tena Junguito, Antonio
GROUP ACTIONS ON RIEMANN SURFACES UP TO TOPOLOGICAL EQUIVALENCE, FOR SURFACES UP TO GENUS 15
- Rodriguez, Álvaro
REPLICATION DATA FOR: EFFICIENCY AND SUPER-EFFICIENCY IN THE CRO INDUSTRY
- Sanchez-Robles, Blanca
- Diaz, Ricardo F.
NANOSTRUCTURED AABB ZN (II) PHTHALOCYANINES AS PHOTODYNAMIC AGENTS FOR BACTERIAL INACTIVATION [DATASET]
- Paramio, Irene
- Salazar, Ainhoa
- Jordà-Redondo, Mireia
- Nonell, Santi
- Torres, Tomás
- De la Torre, Gema
The ability of amphiphilic Phthalocyanine (Pc) photosensitizers (PS) (Zn(II)Pcs PS1, PS2, and PS3) to assemble into cationic nanoparticles in water and to photo-inactivate bacterial strains is demonstrated. All the synthesized Zn(II)Pcs exhibit an AABB functionalization pattern, having a binaphthyloxy-linked bisisoindole (AA) functionalized at the chiral binaphthol core with branched (PS1) or linear (PS2 and PS3) poly-ammonium chains, and two non-functionalized isoindole rings (BB). The aggregation behavior and the stability of the nanoparticles formed by the three PS in water is studied by UV–vis, fluorescence and circular dichroism (CD) spectroscopies, and their shape and size is determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS). The PS nanoparticles prove efficient in the photoinactivation of S. aureus and E. coli. Although PS2 and PS3 present better photophysical features in their monomeric form (i.e., improved singlet oxygen quantum yield), PS1 is more effective in killing both types of strains, especially the gram-negative E. coli. This observation may derive from the low stability found for PS1 nanoparticles, which easily disassemble after binding to the bacteria surface, recovering the photophysical properties of the non-aggregated species.
Structural and photophysical characterization of compounds (Raw data).