808 nm

 This study examined the eff ectiveness of antimicrobial photodynamic therapy (APDT) in the treatment of simulated purulent abdominal abscesses in laboratory animals. Two “radiation + photosensitizer” regimens were tested: 1) using red LED (660 nm) radiation and methylene blue, 2) using laser infrared (808 nm) radiation and indocyanine green.

Gold nanostars with an average core diameter of 122,2 nm and a spike length of 114,6 nm were synthesized and characterized at a concentration of 5,36×1010 pcs/ml with an absorption maximum of 840 nm. Gold nanostars were coated with thiolated polyethylene glycol, its amount was about 8×104 molecules per 1 particle and about 4,4×1015 molecules/ml in the colloid. The zeta potential of gold nanostars coated with PEG-SH was −2.3 mV.