http://www.cnr.it/ontology/cnr/individuo/prodotto/ID170548
Interactions between water soluble porphyrin-based star polymer and amino acids: Spectroscopic evidence of molecular binding (Articolo in rivista)
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- Label
- Interactions between water soluble porphyrin-based star polymer and amino acids: Spectroscopic evidence of molecular binding (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevE.71.021915 (literal)
- Alternative label
Nicola Angelini; Norberto Micali; Valentina Villari; Placido Mineo; Daniele Vitalini; Emilio Scamporrino (2005)
Interactions between water soluble porphyrin-based star polymer and amino acids: Spectroscopic evidence of molecular binding
in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Nicola Angelini; Norberto Micali; Valentina Villari; Placido Mineo; Daniele Vitalini; Emilio Scamporrino (literal)
- Pagina inizio
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- Rivista
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- No. Citazione=3;
Autocitazione=3;
Motore utilizzato per le citazioni=Isiwebofknowledge.com No. Citazione=0;
Autocitazione=0;
Motore utilizzato per le citazioni=Google Scholar. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
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- ISI Web of Science (WOS) (literal)
- Scopu (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR-Istituto per i Processi Chimico-Fisici, sez. Messina, Via La Farina 237, I-98123 Messina, Italy
CNR-Istituto di Chimica e Tecnologia dei Polimeri, Viale Andrea Doria 6, I-95125 Catania, Italy
Dipartimento di Scienze Chimiche, Universita' di Catania, Viale Andrea Doria 6, I-95125 Catania, Italy (literal)
- Titolo
- Interactions between water soluble porphyrin-based star polymer and amino acids: Spectroscopic evidence of molecular binding (literal)
- Abstract
- Molecular interactions giving rise to stable complexes between an uncharged water soluble cobalt-porphyrin
and amino acids are investigated by time-resolved fluorescence, uv-vis, and circular dichroism measurements.
This metalloporphyrin seems to act, by means of the coordination site of the cobalt of the core, as a recognition
host, preferentially, with amino acids possessing aromatic groups. The binding with aliphatic amino acids
requires longer time scales to be efficient and likely involves a slow kinetic process. The experimental findings
suggest that, besides the metal(host)-N(guest) coordination bond, which is the common requisite for all amino
acids, a preferential interaction with aromatic groups exists there. The solubility in water of the molecule,
guaranteed by the polyethylene glycol arms as peripheral substituents, in the absence of electric charges, allows
for a more selective discrimination of the binding process with respect to other water-soluble charged porphyrins.
The interest devoted to the porphyrin-based star polymer and its recognition properties is, therefore,
founded on the potential use either in polymeric matrices for material science or in aqueous solution for
bioscience. (literal)
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- Autore CNR
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