Atomic force microscopy investigation of supramolecular self-assembly of the porphyrin nanotubules

Valentinas Snitka; Raminta Rodaite; Arturas Ulcinas; Vida Mizariene

doi:10.1117/12.522797

29 March 2004 Atomic force microscopy investigation of supramolecular self-assembly of the porphyrin nanotubules

Valentinas Snitka, Raminta Rodaite, Arturas Ulcinas, Vida Mizariene

Proceedings Volume 5275, BioMEMS and Nanotechnology; (2004) https://doi.org/10.1117/12.522797
Event: Microelectronics, MEMS, and Nanotechnology, 2003, Perth, Australia

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.

Citation Download Citation

Valentinas Snitka, Raminta Rodaite, Arturas Ulcinas, and Vida Mizariene "Atomic force microscopy investigation of supramolecular self-assembly of the porphyrin nanotubules", Proc. SPIE 5275, BioMEMS and Nanotechnology, (29 March 2004); https://doi.org/10.1117/12.522797

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