A5024537920- DNA and Nucleic Acid Chemistry
- Advanced biosensing and bioanalysis techniques
- Microfluidic and Capillary Electrophoresis Applications
- Phytochemicals and Antioxidant Activities
- Gold and Silver Nanoparticles Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Spectroscopy and Quantum Chemical Studies
- Innovative Microfluidic and Catalytic Techniques Innovation
- Genomics, phytochemicals, and oxidative stress
- Biochemical and Molecular Research
- DNA Repair Mechanisms
- Conducting polymers and applications
- Ion Transport and Channel Regulation
- RNA Interference and Gene Delivery
- Photoreceptor and optogenetics research
- Antioxidant Activity and Oxidative Stress
- Polydiacetylene-based materials and applications
- Free Radicals and Antioxidants
- Laser-Ablation Synthesis of Nanoparticles
- Plasmonic and Surface Plasmon Research
- Biochemical effects in animals
- Supramolecular Self-Assembly in Materials
- Silicon Carbide Semiconductor Technologies
- Metabolism and Genetic Disorders
- ZnO doping and properties
University of Catania
2002-2025
University of Illinois Urbana-Champaign
1990-1996
Urbana University
1991
University of Palermo
1985
University of Alabama at Birmingham
1980-1981
The interaction of DAPI with natural and synthetic polydeoxynucleotides different base content sequences was studied circular dichroism, ultracentrifugation, viscosity calorimetry. All the polymers show two types binding. strength its resistence to ionic are related AT clusters in chain. On other hand, sedimentation measurements rule out an intercalation mechanism. A model DNA, similar that displayed by distamycin netropsin, is proposed.
Free radical-mediated oxidative damage has been implicated in the pathophysiological mechanisms of apoptosis. In this study we report that statistically significant strand breaks were induced primarily hippocampus and cerebellum during chronic, not acute, ethanol treatment. Damage to DNA observed was also correlated with modification activities mitochondrial respiratory complexes I IV a increase lipid peroxidation products. This finding lends support fact are brain areas particularly...
The design of functional chiral nanostructures in aqueous solution represents one the most exciting challenges supramolecular chemistry, offering potential applications catalysis, sensing, and materials science. In this...
Journal of Porphyrins and PhthalocyaninesAccepted Papers Free AccessTuning hybrid porphyrin-melanin films via supramolecular approachAndrea Vella, Tiziano Grillo, Matteo Barcellona, Gabriele Travagliante, Maria E. Fragala, Roberto Purrello, Massimiliano Gaeta, Alessandro D'ursoAndrea Grillo Search for more papers by this author , Barcellona Travagliante Fragala Purrello Gaeta D'urso https://doi.org/10.1142/S1088424625500336Cited by:0 (Source: Crossref) PreviousNext...
Antibiotics represent essential drugs to contrast the insurgence of bacterial infections in humans and animals. Their extensive use livestock farming, including aquaculture, has improved production performances food safety. However, their overuse can implicate a risk water pollution related antimicrobial resistance. Consequently, innovative strategies for successfully removing antibiotic contaminants have be advanced protect human health. Among them, photodegradation TiO2-driven under solar...
Abstract— The steady state and time resolved fluorescence of the drug chromosomal staining agent, 4′,6‐diamidino‐2‐phenylindole dihydrochloride, DAPI, was examined under different solvent conditions. In solutions between pH 3 9 spectral maximum DAPI found at 460 nm. decayed with double exponential kinetics, decay times 2.86 0.144 ns, all wavelengths below 550 At nm single kinetics a lifetime 0.153 ns observed. spectrum could be into two components, component having near 450 490 results are...
Zinc oxide (ZnO) nanorods grown by chemical bath deposition (CBD) on the surface of polyetheresulfone (PES) electrospun fibers confer antimicrobial properties to obtained hybrid inorganic–polymeric PES/ZnO mats. In particular, a decrement bacteria colony forming units (CFU) is observed for both negative (Escherichia coli) and positive (Staphylococcus aureus Staphylococcus epidermidis) Grams. Since action strictly related quantity ZnO present surface, CBD process optimization performed...
Abstract In this work, the use of projection micro-stereolithography (PμSL) to 3D print a micro-optofluidic device for slug flow detection is presented. For comparison purposes, poly-dimethylsiloxane (PDMS)–based was also manufactured by novel master–slave printing approach. The has microfluidic T-junction with micro-optical section that consists two optical fiber insertions used detection. design includes micro-channels fiber’s insertion, needed acquire light signal, which give direct...
ABSTRACT: The major natural polyphenols of wine are flavonoids. Red also contains a phytoalexin called resveratrol which recently has been the subject conflicting reports regarding its protective role against cardiovascular diseases. We have investigated free radical scavenging capacity resveratrol, effects on xanthine oxidase (XO) activity, spontaneous membrane lipid oxidation, and DNA cleavage. Resveratrol showed dose‐dependent significant inhibition XO an anti‐lipoperoxidative capacity,...
Journal Article Interaction of DAPI with double-stranded ribonucleic acids Get access G. Manzini, Manzini Dipartimento di Biochimica, Biofisica e Chimica delle Macromolecole, Università Trieste34127 Trieste Search for other works by this author on: Oxford Academic PubMed Google Scholar L. Xodo, Xodo M.L. Barcellona, Barcellona 1Istituto Biologica, Catania95125 Catania, Italy F. Quadrifoglio Nucleic Acids Research, Volume 13, Issue 24, 20 December 1985, Pages 8955–8967,...
acetylimidazole (17), and carboxyl reagents such as dicyclohexyl carbodiimide (18) have been used.This latter reagent has shown to inhibit the (H' + K+)-ATPase associated transport reaction, i.e., H':K' antiport (19) suggesting groups might be involved rather directly in catalytic properties of this enzyme.An alternative group-modifying reagent, N-ethox-
Plasticity in the central nervous system after cerebral ischemia is a controversial issue; focal produces an area of infarction that surrounded by neurons may respond to nearby damage creating new synapses. In present study expression postsynaptic microtubule-associated protein 2 (MAP2) and presynaptic marker protein, synaptophysin, was investigated immunocytochemical techniques CA1 sector hippocampus cerebellum rats made ischemic bilateral clamping common carotid arteries reperfused for 7...