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Proceedings Paper

Atomic force microscopy investigation of supramolecular self-assembly of the porphyrin nanotubules
Author(s): Valentinas Snitka; Raminta Rodaite; Arturas Ulcinas; Vida Mizariene
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Paper Abstract

Structure and morphology of porphyrin aggregates and influence of temperature, microwave and ultraviolet radiation, and acoustic cavitation on aggregation process were investigated using absorption spectroscopy and atomic force microscopy. In ambient conditions TPPS4 forms stick-like J-aggregates with length of 0.05-3 μm, width 22-50 nm and height 4-5 nm. Increased temperature or MW and UV radiation does not influence the aggregates. Acoustic cavitation leads to destruction of stick-shaped aggregates and activates the formation of larger molecular complexes.

Paper Details

Date Published: 29 March 2004
PDF: 4 pages
Proc. SPIE 5275, BioMEMS and Nanotechnology, (29 March 2004); doi: 10.1117/12.522797
Show Author Affiliations
Valentinas Snitka, Kaunas Univ. of Technology (Lithuania)
Raminta Rodaite, Kaunas Univ. of Technology (Lithuania)
Arturas Ulcinas, Kaunas Univ. of Technology (Lithuania)
Vida Mizariene, Kaunas Univ. of Technology (Lithuania)

Published in SPIE Proceedings Vol. 5275:
BioMEMS and Nanotechnology
Dan V. Nicolau; Uwe R. Muller; John M. Dell, Editor(s)

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