3D-Printed Poly(lactic acid)/Poly(ethylene glycol) Scaffolds with Shape-Memory Effect near Physiological Temperature
| Parent link: | Polymers.— .— Basel: MDPI AG Vol. 18, iss. 1.— 2026.— Article number 140, 16 p. |
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| Andre forfattere: | , , , , , , |
| Summary: | Title screen Biocompatible poly(lactic acid) (PLA) was plasticized with poly(ethylene glycol) (PEG) added at concentrations of 10, 15, and 20 wt.% relative to PLA, and then processed into gyroid triply periodic minimal surface (TPMS) scaffolds using fused filament fabrication (FFF) 3D printing. The influence of PEG concentration and gyroid structure (50% infill density) on thermal transitions, crystallinity, and low–temperature shape-memory performance was systematically investigated. The shape-memory effect (SME) of the PLA–based scaffolds was tailored through compositional control and structural design. Shape recovery under thermal activation at 40 °C and 50 °C was examined to reveal the correlation between composition and structure in governing low–temperature shape-memory behavior. The optimal composition (PLA/10 PEG, 50% gyroid infill) achieved shape recovery with a recovery ratio (Rr) of 97 ± 1% at 40 °C within 6 ± 1 min, demonstrating optimal shape-memory activation close to physiological temperature. Structural and morphological changes were characterized using ATR–FTIR, Raman spectroscopy, DSC, XRD, and SEM, providing comprehensive insight into the plasticization of the PLA matrix and its impact on structure–property relationships relevant to bone tissue engineering Текстовый файл |
| Sprog: | engelsk |
| Udgivet: |
2026
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| Fag: | |
| Online adgang: | https://doi.org/10.3390/polym18010140 |
| Format: | Electronisk Book Chapter |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=685352 |
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| 200 | 1 | |a 3D-Printed Poly(lactic acid)/Poly(ethylene glycol) Scaffolds with Shape-Memory Effect near Physiological Temperature |f A. A. Fetisova, Abdullah bin Firoz, A. S. Lozhkomoev [et al.] | |
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| 320 | |a References: 50 tit | ||
| 330 | |a Biocompatible poly(lactic acid) (PLA) was plasticized with poly(ethylene glycol) (PEG) added at concentrations of 10, 15, and 20 wt.% relative to PLA, and then processed into gyroid triply periodic minimal surface (TPMS) scaffolds using fused filament fabrication (FFF) 3D printing. The influence of PEG concentration and gyroid structure (50% infill density) on thermal transitions, crystallinity, and low–temperature shape-memory performance was systematically investigated. The shape-memory effect (SME) of the PLA–based scaffolds was tailored through compositional control and structural design. Shape recovery under thermal activation at 40 °C and 50 °C was examined to reveal the correlation between composition and structure in governing low–temperature shape-memory behavior. The optimal composition (PLA/10 PEG, 50% gyroid infill) achieved shape recovery with a recovery ratio (Rr) of 97 ± 1% at 40 °C within 6 ± 1 min, demonstrating optimal shape-memory activation close to physiological temperature. Structural and morphological changes were characterized using ATR–FTIR, Raman spectroscopy, DSC, XRD, and SEM, providing comprehensive insight into the plasticization of the PLA matrix and its impact on structure–property relationships relevant to bone tissue engineering | ||
| 336 | |a Текстовый файл | ||
| 461 | 1 | |t Polymers |c Basel |n MDPI AG | |
| 463 | 1 | |t Vol. 18, iss. 1 |v Article number 140, 16 p. |d 2026 | |
| 610 | 1 | |a shape-memory polymer | |
| 610 | 1 | |a 3D printing | |
| 610 | 1 | |a additive manufacturing | |
| 610 | 1 | |a tissue engineering | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 701 | 1 | |a Fetisova |b A. A. |g Anastasiya Alekseevna |f 2000- |c specialist in the field of material science |c Research Engineer of Tomsk Polytechnic University |9 88913 | |
| 701 | 1 | |a Abdullah bin |b F. |g Firoz |f 1995- |c specialist in the field of material science |c Research Engineer of Tomsk Polytechnic University |9 88911 | |
| 701 | 1 | |a Lozhkomoev |b A. S. |c specialist in the field of medical technology |c researcher of Tomsk Polytechnic University |f 1982- |g Aleksandr Sergeevich |9 18056 | |
| 701 | 1 | |a Senkina |b E. I. |g Elena Ivanovna | |
| 701 | 1 | |a Ryumin |b E. E. |g Egor Evgenjevich | |
| 701 | 1 | |a Surmeneva |b M. A. |c specialist in the field of material science |c engineer-researcher of Tomsk Polytechnic University, Associate Scientist |f 1984- |g Maria Alexandrovna |9 15966 | |
| 701 | 1 | |a Surmenev |b R. A. |c physicist |c Associate Professor of Tomsk Polytechnic University, Senior researcher, Candidate of physical and mathematical sciences |f 1982- |g Roman Anatolievich |9 15957 | |
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