Effect of Low-Temperature Plasma Treatment and gamma Irradiation on the Surface Properties of Thin Films Based on Polylactic Acid
| Parent link: | Inorganic Materials: Applied Research Vol. 12, iss. 3.— 2021.— [P. 664-675] |
|---|---|
| Enti autori: | , |
| Altri autori: | , , , |
| Riassunto: | Title screen The effects of the low-temperature plasma exposure, gg irradiation, and combined γ irradiation and plasma exposure on the structure and surface properties of thin films based on polylactic acid (PLA) are studied. Films are prepared by the solvent casting method. It is shown that films based on polylactic acid have topographically different sides: a smoother inner side and an embossed outer one. PLA films have properties close to hydrophobic ones, with a contact angle in the range of 70°-73° regardless of the surface side. They belong to weakly polar materials. The combined effect of plasma and gg irradiation slightly changes the surface topography. The effect of low-temperature plasma on the surface of the films leads to a decrease in the contact angle by 13°-55° (9-11%) and an increase in the surface energy due to the polar component. The results of in vivo experiments on rabbits are presented. Biomicroscopy, optical coherence tomography, and morphological and electron microscopic examination of the cornea after implantation of the initial and radiation- and plasma-treated films show that implantation of the films in the anterior chamber is not accompanied by a pronounced inflammatory reaction and increased intraocular pressure, while maintaining the morphological structure of the cornea almost unchanged. Режим доступа: по договору с организацией-держателем ресурса |
| Lingua: | inglese |
| Pubblicazione: |
2021
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| Soggetti: | |
| Accesso online: | https://doi.org/10.1134/S207511332103014X |
| Natura: | Elettronico Capitolo di libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665253 |
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| 200 | 1 | |a Effect of Low-Temperature Plasma Treatment and gamma Irradiation on the Surface Properties of Thin Films Based on Polylactic Acid |f N. M. Ivanova, E. O. Filippova, A. N. Aleynik, V. F. Pichugin | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 39 tit.] | ||
| 330 | |a The effects of the low-temperature plasma exposure, gg irradiation, and combined γ irradiation and plasma exposure on the structure and surface properties of thin films based on polylactic acid (PLA) are studied. Films are prepared by the solvent casting method. It is shown that films based on polylactic acid have topographically different sides: a smoother inner side and an embossed outer one. PLA films have properties close to hydrophobic ones, with a contact angle in the range of 70°-73° regardless of the surface side. They belong to weakly polar materials. The combined effect of plasma and gg irradiation slightly changes the surface topography. The effect of low-temperature plasma on the surface of the films leads to a decrease in the contact angle by 13°-55° (9-11%) and an increase in the surface energy due to the polar component. The results of in vivo experiments on rabbits are presented. Biomicroscopy, optical coherence tomography, and morphological and electron microscopic examination of the cornea after implantation of the initial and radiation- and plasma-treated films show that implantation of the films in the anterior chamber is not accompanied by a pronounced inflammatory reaction and increased intraocular pressure, while maintaining the morphological structure of the cornea almost unchanged. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Inorganic Materials: Applied Research | ||
| 463 | |t Vol. 12, iss. 3 |v [P. 664-675] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a polylactic acid | |
| 610 | 1 | |a biodegradable implants | |
| 610 | 1 | |a roughness | |
| 610 | 1 | |a thin films | |
| 610 | 1 | |a hygroscopicity | |
| 610 | 1 | |a sterilization | |
| 610 | 1 | |a edge angle | |
| 610 | 1 | |a low-temperature plasma | |
| 610 | 1 | |a ? sterilization | |
| 610 | 1 | |a полимолочная кислота | |
| 610 | 1 | |a биоразлагаемые материалы | |
| 610 | 1 | |a имплантаты | |
| 610 | 1 | |a тонкие пленки | |
| 610 | 1 | |a гигроскопичность | |
| 610 | 1 | |a низкотемпературная плазма | |
| 610 | 1 | |a гамма-облучение | |
| 701 | 1 | |a Ivanova |b N. M. |c physicist |c senior assistant of Tomsk Polytechnic University |f 1991- |g Nina Mikhailovna |3 (RuTPU)RU\TPU\pers\34210 | |
| 701 | 1 | |a Filippova |b E. O. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of Technical Sciences |f 1988- |g Ekaterina Olegovna |3 (RuTPU)RU\TPU\pers\37038 |9 20053 | |
| 701 | 1 | |a Aleynik |b A. N. |g Aleksandr Nikonorovich | |
| 701 | 1 | |a Pichugin |b V. F. |g Vladimir Fedorovich | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Исследовательская школа физики высокоэнергетических процессов |c (2017- ) |3 (RuTPU)RU\TPU\col\23551 |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа энергетики |b Организационный отдел |3 (RuTPU)RU\TPU\col\23585 |
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