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Article

Influence of Magnetic Micelles on Assembly and Deposition of Porphyrin J-Aggregates

1
CNR-ISMN, Istituto per lo Studio dei Materiali Nanostrutturati c/o Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy
2
Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali and C.I.R.C.M.S.B., University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy
3
CNR-IPCF, Istituto Per i Processi Chimico-Fisici, 70124 Bari, Italy
4
Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy
5
Dipartimento di Scienze Matematiche e Informatiche, Scienze Fisiche e Scienze della Terra, University of Messina V.le F. Stagno D’Alcontres, 31 98166 Messina, Italy
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(2), 187; https://doi.org/10.3390/nano10020187
Received: 23 December 2019 / Revised: 14 January 2020 / Accepted: 16 January 2020 / Published: 21 January 2020
Clusters of superparamagnetic iron oxide nanoparticles (SPIONs) have been incorporated into the hydrophobic core of polyethylene glycol (PEG)-modified phospholipid micelles. Two different PEG-phospholipids have been selected to guarantee water solubility and provide an external corona, bearing neutral ([email protected]) or positively charged amino groups ([email protected]2-PEG-micelles). Under acidic conditions and with specific mixing protocols (porphyrin first, PF, or porphyrin last, PL), the water-soluble 5,10,15,20-tetrakis-(4-sulfonatophenyl)-porphyrin (TPPS) forms chiral J-aggregates, and in the presence of the two different types of magnetic micelles, an increase of the aggregation rates has been generally observed. In the case of the neutral [email protected], PL protocol affords a stable nanosystem, whereas PF protocol is effective with the charged [email protected]2-PEG-micelles. In both cases, chiral J-aggregates embedded into the magnetic micelles ([email protected]@micelles) have been characterized in solution through UV/vis absorption and circular/linear dichroism. An external magnetic field allows depositing films of the [email protected]@micelles that retain their chiroptical properties and exhibit a high degree of alignment, which is also confirmed by atomic force microscopy. View Full-Text
Keywords: SPION; porphyrin; chirality; self-assembly; hybrid nanosystems SPION; porphyrin; chirality; self-assembly; hybrid nanosystems
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MDPI and ACS Style

Castriciano, M.A.; Trapani, M.; Romeo, A.; Depalo, N.; Rizzi, F.; Fanizza, E.; Patanè, S.; Monsù Scolaro, L. Influence of Magnetic Micelles on Assembly and Deposition of Porphyrin J-Aggregates. Nanomaterials 2020, 10, 187. https://doi.org/10.3390/nano10020187

AMA Style

Castriciano MA, Trapani M, Romeo A, Depalo N, Rizzi F, Fanizza E, Patanè S, Monsù Scolaro L. Influence of Magnetic Micelles on Assembly and Deposition of Porphyrin J-Aggregates. Nanomaterials. 2020; 10(2):187. https://doi.org/10.3390/nano10020187

Chicago/Turabian Style

Castriciano, Maria A.; Trapani, Mariachiara; Romeo, Andrea; Depalo, Nicoletta; Rizzi, Federica; Fanizza, Elisabetta; Patanè, Salvatore; Monsù Scolaro, Luigi. 2020. "Influence of Magnetic Micelles on Assembly and Deposition of Porphyrin J-Aggregates" Nanomaterials 10, no. 2: 187. https://doi.org/10.3390/nano10020187

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