Abstract
This work evaluated the photosensitizing activity of isomeric tetra-cationic porphyrins with peripheral [Pt(bpy)Cl]+ to control the larval population of Aedes aegypti by photodynamic action. The photolarvicidal activity of the tetra-platinated porphyrins at meta and para position (3-PtTPyP and 4-PtTPyP) was evaluated under blue (450nm), green (525nm), and red (625nm) light illumination at 55.0Jcm-2. The meta isomer presented an efficient photolarvicidal activity even at a low concentration (1.2ppm) in the presence of light, while the para counterpart was inactive regardless of the concentration and illumination. The different responses were related to the improved optical features and higher water solubility of 3-PtTPyP compared to 4-PtTPyP. Additionally, the potential environmental toxicity of 3-PtTPyP was tested in a plant model (Allium cepa test), with no toxicity detected for all used concentrations (1.2 to 12ppm). Hence, this work reveals that 3-PtTPyP has a great potential to be employed to photodynamically control the insect vector population in an environmentally safe way.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of Photochemistry and Photobiology B: Biology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.