Modification of PLGA microspheres’ microstructure for application as cell carriers in modular tissue engineering

Journal Title: Engineering of Biomaterials / Inżynieria Biomateriałów - Year 2017, Vol 20, Issue 140

Abstract

Microspheres (MS) made of resorbable polymer have been proposed as a cell growth support. They may be assembled to form cell constructs or be suspended in hydrogels allowing injection into injury location. High relative surface area of MS provides more efficient cell culture environment than traditional culture on flat substrates (multiwell plates, Petri dishes). In addition, MS structure, topography and surface chemistry can be modified to promote cell adhesion and proliferation. The aim of this study was to obtain resorbable poly(L-lactide-co-glycolide) (PLGA) MS and to modify their properties by changing manufacturing conditions of the oil-in-water emulsification to better control structural and microstructural properties of MS and their biological performance. To this end, water phase was modified by addition of NaCl to change ionic strength, while oil phase by addition of polyethylene glycol (PEG). Microstructural and thermal properties were assessed. Cytocompatibility tests and cell cultures with MG-63 cells were conducted to verify potential relevance of MS as cell carriers. The results showed that it is possible to obtain cytocompatible MS by oil-in-water emulsification method and to control diameter, porosity and crystallinity of MS with the use of additives to oil and/or water phases without negative changes in MS cytocompatibility. The results prove that modification of both phases make it possible to produce MS with desired/controllable properties like surface topography, porosity and crystallinity.

Authors and Affiliations

B. Mielan, M. Krok-Borkowicz, K. Pielichowska, E. Pamuła

Keywords

Related Articles

Oszacowanie stabilizacji złamania trzonu kości udowej przez płytkę przykostną przy wykorzystaniu metody elementów skończonych

Złamania kości długich mogą być leczone na kilka sposobów. Jednym z nich jest zastosowanie płytki przykostnej. Płytka zamocowywana do kości umożliwia przeprowadzenie leczenia, ale z drugiej strony jest źródłem powstawani...

Modeling computational studies of modified drug molecules binding to the LRRK2 protein in the treatment of Parkinson’s disease

Parkinson’s disease is a neurodegenerative and progressive disease of the central nervous system. It affects more than 10 million patients worldwide and the symptoms allow for little to no control for movement. These sym...

Badania materiałowe i korozyjne konwencjonalnych stopów Co-Cr-Mo-W przeznaczonych na odlewy konstrukcji szkieletowych w protetyce dentystycznej

Podstawowe cechy jakimi powinny charakteryzować się materiały stosowane na protezy szkieletowe w stomatologii to biotolerancja w środowisku tkanek i płynów ustrojowych oraz duża odporność na korozję wżerową i szczelinową...

Preparation of composite filaments and 3D prints based on PLA modified with carbon materials with the potential applications in tissue engineering

This paper discusses the possibilities of obtaining polylactide-based composites and nanocomposites modified with carbon materials using the extrusion method, as well as the potential of their application in 3D printing...

Genotoksyczność antybakteryjnych bioszkieł wytworzonych metodą zol-żel wobec Salmonella typhimurium

Problemem w stomatologii są choroby przyzębia. W zaawansowanej fazie tej choroby konieczna jest chirurgiczna interwencja z zastosowaniem odpowiednich biomateriałów dla regeneracji tkanek. Dlatego celem tej pracy było okr...

Download PDF file
  • EP ID EP483498
  • DOI -
  • Views 46
  • Downloads 0

How To Cite

B. Mielan, M. Krok-Borkowicz, K. Pielichowska, E. Pamuła (2017). Modification of PLGA microspheres’ microstructure for application as cell carriers in modular tissue engineering. Engineering of Biomaterials / Inżynieria Biomateriałów, 20(140), 7-11. https://europub.co.uk/articles/-A-483498