Effect of silver ion implantation on surface physicochemical properties of composite materials based on polylactic acid and hydroxyapatite

Laput, Olesya A.; Zuza, Daniil A.; Vasenina, Irina V.; Savkin, Konstantin P.; Kurzina, Irina A.

Effect of silver ion implantation on surface physicochemical properties of composite materials based on polylactic acid and hydroxyapatite

Laput, Olesya A., Zuza, Daniil A., Vasenina, Irina V., Savkin, Konstantin P., Kurzina, Irina A.

Дата публикации: 2020

Дата публикации в реестре: 2022-10-06T22:46:48Z

Аннотация:

The investigation of surface physicochemical and biological properties of polylactic acid and hydroxyapatite and composite materials based on them modified by Ag 1×1015 ion/cm2 and 1×1016 ion/cm2 40 keV ion implantation is presented. X-ray analysis reveals that ion implantation of the above mentioned materials leads to crystallite size and degree of crystallinity increase. The intensity of -С=О line is found by IR-spectroscopy to be decreased that is associated with surface layer carbonization processes of PLA during ion implantation. Silver ion introducing is established to enhance hydrophobic properties of the materials; this process is accompanied by free surface energy decreasing. It is shown that cell viability of non-implanted PLA is comparable with a control sample and ion implantation negatively affects to cell viability. The investigated materials can be promising for biomedical application.

Ключевые слова:
полилактиды, ионная имплантация, гидроксиапатит, физико-химические свойства, серебро, композитные материалы

Тип: статьи в журналах

Источник: Vacuum. 2020. Vol. 175. P. 109251 (1-10)