Enhancement of photo-bactericidal effect of tetrasulfonated hydroxyaluminum phthalocyanine on Pseudomonas aeruginosa

Lasers in Medical Science - Tập 33 - Trang 79-88 - 2017
Irena Maliszewska1, Wojciech Kałas2, Edyta Wysokińska2, Włodzimierz Tylus3, Natalia Pietrzyk1, Katarzyna Popko1, Krystyna Palewska4
1Division of Medicinal Chemistry and Microbiology, Faculty of Chemistry, Wroclaw University of Science and Technology, Wroclaw, Poland
2Department of Experimental Oncology, Institute of Immunology and Experimental Therapy, Wroclaw, Poland
3Faculty of Chemistry, Division of Advanced Material Technologies, Wrocław University of Science and Technology, Wrocław, Poland
4Faculty of Chemistry, Advanced Materials Engineering and Modelling Group, Wrocław University of Science and Technology, Wroclaw, Poland

Tóm tắt

At the present time, photodynamic inactivation (PDI) is receiving considerable interest for its potential as an antimicrobial therapy. The results of our study indicate that enhancement of the phototoxic effect on Pseudomonas aeruginosa can be achieved by combination of tetrasulfonated hydroxyaluminum phthalocyanine (AlPcS4) and bimetallic gold/silver nanoparticles (Au/Ag-NPs) synthesized by the cell-free filtrate of Aureobasidium pullulans. The bimetallic nanoparticles were characterized by a number of techniques including UV-vis, XPS, TEM, and SEM-EDS to be 14 ± 3 nm spherical particles coated with proteins. The effect of diode lasers with the peak-power wavelength ʎ = 650 nm (output power of 10 and 40 mW; radiation intensity of 26 and 105 mW/cm2) in combination with the AlPcS4 and the bimetallic nanoparticles mixture on the viability of P. aeruginosa rods was shown. Particularly high efficiency of killing bacterial cells was obtained for the light intensity of 105 mW/cm2, after 20, 30, and 40 min of irradiation corresponding to 126, 189, and 252 J/cm2 energy fluences. For AlPcS4+Au/Ag-NPs treatment, the viable count reduction were equal to 99.90, 99.96, and 99.975%, respectively. These results were significantly better than those accomplished for irradiated separated assays of AlPcS4 and Au/Ag-NPs.

Tài liệu tham khảo

World Health Organization (2014) Antimicrobial resistance: global report on surveillance

Aveline B (2001) Primary processes in photosensitization mechanisms. Compre Ser Photosci 2:17–34

Grafe S, Gebhardt P, Albrecht V (2004) Siderophore conjugates of photoactive dyes for photodynamic therapy. Patent US20040186087

Wharton T, Gali H, Hamblin MR (2009) Photosensitizers for targeted photodynamic therapy. Patent US20090076115

Palewska K, Sujka M, Urasińska-Wójcik B, Sworakowski J, Lipiński J, Nešpůrek S, Rakušan J, Karásková M (2008) Light-induced effects in sulfonated aluminum phthalocyanines—potential photosensitizers in the photodynamic therapy. Spectroscopic and kinetic study. J Photochem Photobiol A Chem 197:1–12

Crist BV (1999) Handbooks of monochromatic XPS spectra; Vol. 1 and 2, B. XPS International, Inc

Glazebrook JS, Campbell RS, Hutchinson GW, Stallman ND (1978) Rodent zoonoses in North Queensland: the occurrence and distribution of zoonotic infections in North Queensland rodents. Aust J Exp Biol Med Sci 56:147–156

Lyczak JB, Cannon CL, Pier GB (2000) Establishment of Pseudomonas aeruginosa infection: lessons from a versatile opportunist. Microbes Infect 2:1051–1060

Spikers JD (1986) Phtalocyanines as photosensitizers in biological systems and for photodynamic therapy of tumors. Photochem Photobiol 43:691–699

Li T, Albee B, Alemayehu M, Diaz R, Ingham L, Kamal S, Rodriguez M, Bishnoi SW (2010) Comparative toxicity study of Ag, Au, and Ag–Au bimetallic nanoparticles on Daphnia magna. Anal Bioanal Chem 398:689–700

Kuruppuarachchi M, Savoie H, Lowry A, Alonso C, Boyle RW (2011) Polyacrylamide nanoparticles as a delivery system in photodynamic therapy. Mol Pharm 8:920–931