A5076890292- Porphyrin and Phthalocyanine Chemistry
- Photodynamic Therapy Research Studies
- Nanoplatforms for cancer theranostics
- Fullerene Chemistry and Applications
- Luminescence and Fluorescent Materials
- Conducting polymers and applications
- Photochemistry and Electron Transfer Studies
- Organic Electronics and Photovoltaics
- TiO2 Photocatalysis and Solar Cells
- Electrochemical Analysis and Applications
- Surfactants and Colloidal Systems
- Molecular Junctions and Nanostructures
- Ocular Infections and Treatments
- Porphyrin Metabolism and Disorders
- Photochromic and Fluorescence Chemistry
- Antifungal resistance and susceptibility
- Antioxidant Activity and Oxidative Stress
- Chemical Reaction Mechanisms
- Chemical Reactions and Mechanisms
- Crystallization and Solubility Studies
- Carbon Nanotubes in Composites
- Transition Metal Oxide Nanomaterials
- Microwave-Assisted Synthesis and Applications
- Electrochemical sensors and biosensors
- bioluminescence and chemiluminescence research
National University of Río Cuarto
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2017-2025
Fundación Ciencias Exactas y Naturales
2021
Instituto Médico Río Cuarto
2021
Centro Médico Sanitas Córdoba
2018-2020
Universidad Autónoma de Madrid
2008
Centro de Investigaciones Biológicas Margarita Salas
2008
National University of Santiago del Estero
2001-2007
National University of Engineering
1998-2003
Arizona State University
1997-2001
A conducting atomic force microscope was used to measure the electrical properties of carotenoid molecules attached a gold electrode. The thiolated carotene were embedded in insulating n-alkanethiol self-assembled monolayers. At contact few nanoNewtons, molecule behaves ohmically with resistance approximately 4.2 ± 0.7 GΩ, over million times more conductive than an alkane chain similar length. Modes electron transport are discussed.
A porphyrin-fullerene C60 dyad (TCP-C60) substituted by carbazoyl groups was used to obtain electrogenerated polymeric films on optically transparent indium tin oxide (ITO) electrodes. This approach produced stable and reproducible polymers, holding fullerene units. The properties of this film were compared with those formed layers TCP/TCP-C60 TCP/ZnTCP. Absorption spectra the presented Soret Q bands corresponding porphyrins. TCP-C60 a high photodecomposition...
We have used a series of metalloporphyrin compounds to test for relationship between the contrast STM images and electrochemical properties molecules. Molecules were tethered gold (111) surface by means an isothiocyano linkage both current−voltage (I−V) curves obtained with sample submerged in oxygen-free mesitylene. The reducible molecules changed strongly bias, corresponding I−V highly asymmetric. derivative these (dI/dV) had Gaussian-shaped peak at voltage characteristic compound,...
Carotenoids (Car) act as "wires" that discharge unwanted electrons in the reaction center of higher plants. One step this "side-path" electron conduction is thought to be mediated by Car oxidation. We have carried out direct measurements conductance single-Car molecules under potential control a membrane-mimicking environment, and we found when are oxidized enhanced electronic decay constant (beta) decreased. However, neutral molecule may already conductive enough account for observed transfer rates.
A novel biscarbazol triphenylamine end-capped dendrimeric zinc(II) porphyrin (DP 5) was synthesized by click chemistry. This compound is a cruciform dendrimer that bears nucleus of tetrapyrrolic macrocycle substituted at the meso positions four identical substituents. These are formed tetrafluorophenyl group possesses triazole unit in para position. nitrogenous heterocyclic connected to 4,4'-di(N-carbazolyl)triphenylamine means phenylenevinylene bridge, which allows conjugation between and...
Abstract A covalently linked BODIPY−fullerene C 60 dyad (BDP−C ) was synthesized as a two‐segment structure, which consists of visible light‐harvesting antenna attached to an energy or electron acceptor moiety. This structure designed improve the photodynamic action fullerene inactivate bacteria. The absorption spectrum BDP−C found be superposition spectra its constitutional moieties, whereas fluorescence emission BODIPY unit strongly quenched by . Spectroscopic, calculations, and redox...
A system composed of ethylcellulose (EC) nanofibers loading with [5,10,15,20-tetrakis(pentafluorophenyl)porphyrinato]zinc(II) (TPPF20-Zn) was developed as electrospun mats to contribute the inactivation resistant bacteria strains. This tetrapyrrolic macrocycle chosen for its excellent photostability and straightforward large-scale preparation, which are crucial attributes practical applications. The synthesis subsequent characterization TPPF20-Zn demonstrated scalability ability generate...
In this study, two new BOPHY‐based derivatives were efficiently synthesized with high yields and characterized by using spectroscopic, electrochemical, spectroelectrochemical techniques. The introduction of non‐conjugated (carbazole (CBZ)) conjugated (triphenylamine (TPA)) donor groups into the BOPHY macrocycle imparted different electrochemical spectroscopic properties. Oxidation BP‐2CBZ led to formation unstable CBZ radical cations, which further reacted generate dicarbazole (DCBZ) units,...
The photodynamic activities of a porphyrin-C60 dyad (P-C60) and its metal complex with Zn(II) (ZnP-C60) were compared 5-(4-acetamidophenyl)-10,15,20-tris(4-methoxyphenyl)porphyrin (P), both in homogeneous medium-bearing photooxidizable substrates vitro on the Hep-2-human-larynx-carcinoma cell line. This study represents first evaluation dyads, high capacity to form photoinduced charge-separated state, act as agents inactivate cells by therapy (PDT). Absorption fluorescence spectroscopic...