Light, Dyes, and Action: Photodynamic Inactivation of <i>Leishmania amazonensis</i> Using Methylene Blue, New Methylene Blue, and Novel Ruthenium-Based Derivatives.

The combination of red LED irradiation with the compounds resulted in a highly significant ( p < 0.0001), dose-dependent reduction in Leishmania promastigote survival compared to the negative control ( Figure 1 B 1 –B 4 ).

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