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Sökning: id:"swepub:oai:DiVA.org:kth-294170" > Understanding of ho...

  • Jain, ShubhamKTH,Polymerteknologi (författare)

Understanding of how the properties of medical grade lactide based copolymer scaffolds influence adipose tissue regeneration : Sterilization and a systematic  in vitro  assessment

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • Elsevier BV,2021
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:kth-294170
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294170URI
  • https://doi.org/10.1016/j.msec.2021.112020DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • QC 20220503
  • Aliphatic polyesters are the synthetic polymers most commonly used in the development of resorbable medical implants / devices. Various three-dimensional (3D) scaffolds have been fabricated from these polymers and used in adipose tissue engineering. However, their systematic evaluation altogether lacks, which makes it difficult to select a suitable degradable polymer to design 3D resorbable implants and / or devices able to effectively mimic the properties of adipose tissue. Additionally, the impact of sterilization methods on the medical devices, if any, must be taken into account. We evaluate and compare five different medical-grade resorbable polyesters with l-lactide content ranging from 50 to 100 mol% and exhibiting different physiochemical properties depending on the comonomer (d-lactide, ε-caprolactone, glycolide, and trimethylene carbonate). The salt-leaching technique was used to prepare 3D microporous scaffolds. A comprehensive assessment of the physical, chemical, and mechanical properties of the scaffolds was carried out in PBS at 37 ° C. The cell-material interactions and the ability of the scaffolds to promote adipogenesis of human adipose tissue-derived stem cells were assessed in vitro. The diverse physical and mechanical properties of the scaffolds, due to the different composition of the copolymers, influenced human adipose tissue-derived stem cells proliferation and differentiation. Scaffolds made from polymers which were above their glass transition temperature and with low degree of crystallinity showed better proliferation and adipogenic differentiation of stem cells. The effect of sterilization techniques (electron beam and ethylene oxide) on the polymer properties was also evaluated. Results showed that scaffolds sterilized with the ethylene oxide method better retained their physical and chemical properties. Overall, the presented research provides (i) a detailed understanding to select a degradable polymer that has relevant properties to augment adipose tissue regeneration and can be further used to fabricate medical devices / implants; (ii) directions to prefer a sterilization method that does not change polymer properties. the presented research provides (i) a detailed understanding to select a degradable polymer that has relevant properties to augment adipose tissue regeneration and can be further used to fabricate medical devices / implants; (ii) directions to prefer a sterilization method that does not change polymer properties. the presented research provides (i) a detailed understanding to select a degradable polymer that has relevant properties to augment adipose tissue regeneration and can be further used to fabricate medical devices / implants; (ii) directions to prefer a sterilization method that does not change polymer properties.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Ahmad Yassin, MohammedTissue Engineering Group, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, 5009 Bergen, Norway (författare)
  • Fuoco, Tiziana,PhD,1986-KTH,Fiber- och polymerteknologi(Swepub:kth)u1m7d0c7 (författare)
  • Mohamed-Ahmed, SamihTissue Engineering Group, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, 5009 Bergen, Norway (författare)
  • Vindenes, HallvardTissue Engineering Group, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, 5009 Bergen, Norway; Department for Plastic, Hand and Reconstructive Surgery, National Fire Damage Center, Bergen, Norway (författare)
  • Mustafa, KamalTissue Engineering Group, Department of Clinical Dentistry, Faculty of Medicine, University of Bergen, Årstadveien 19, 5009 Bergen, Norway (författare)
  • Finne Wistrand, Anna,1976-KTH,Polymerteknologi(Swepub:kth)u17gwfv7 (författare)
  • KTHPolymerteknologi (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Materials science & engineering. C, biomimetic materials, sensors and systems: Elsevier BV1240928-49311873-0191

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