1. Optical coherence tomography to delineate the interactions of PAMAM dendrimers with the porcine skin surface

    Optical coherence tomography to delineate the interactions of PAMAM dendrimers with the porcine skin surface

    Polyamidoamine (PAMAM) dendrimers have been topically applied to the skin and utilised as a permeation enhancer for a range of therapeutic compounds. However, very little is known about the mechanism of enhancement. This study used optical coherence tomography (OCT) to investigate the influence of PAMAM dendrimers to alter surface refractive index (RI) in excised porcine skin. It is revealed that PAMAM dendrimers caused a sporadic disruption and disappearance of the white hyper-reflective band on the skin surface using OCT. Following the decontamination of the treated skin specimens, the entrance signal, resulting in the polarised light reflecting off the keratin of ...

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