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Bandzerewicz A, Howis J, Wierzchowski K, Slouf M, Hodan J, Denis P, Gołofit T, Pilarek M, Gadomska-Gajadhur A. Exploring the application of poly(1,2-ethanediol citrate)/polylactide nonwovens in cell culturing. Front Bioeng Biotechnol 2024; 12:1332290. [PMID: 38558787 PMCID: PMC10978747 DOI: 10.3389/fbioe.2024.1332290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
Biomaterials containing citric acid as a building unit show potential for use as blood vessel and skin tissue substitutes. The success in commercializing implants containing a polymer matrix of poly(1,8-octanediol citrate) provides a rationale for exploring polycitrates based on other diols. Changing the aliphatic chain length of the diol allows functional design strategies to control the implant's mechanical properties, degradation profile and surface energy. In the present work, poly(1,2-ethanediol citrate) was synthesized and used as an additive to polylactide in the electrospinning process. It was established that the content of polycitrate greatly influences the nonwovens' properties: an equal mass ratio of polymers resulted in the best morphology. The obtained nonwovens were characterized by surface hydrophilicity, tensile strength, and thermal properties. L929 cell cultures were carried out on their surface. The materials were found to be non-cytotoxic and the degree of porosity was suitable for cell colonization. On the basis of the most important parameters for assessing the condition of cultured cells (cell density and viability, cell metabolic activity and lactate dehydrogenase activity), the potential of PLLA + PECit nonwovens for application in tissue engineering was established.
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Affiliation(s)
| | - Joanna Howis
- Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| | - Kamil Wierzchowski
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Miroslav Slouf
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czechia
| | - Jiri Hodan
- Institute of Macromolecular Chemistry, Czech Academy of Sciences, Prague, Czechia
| | - Piotr Denis
- Laboratory of Polymers and Biomaterials, Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland
| | - Tomasz Gołofit
- Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| | - Maciej Pilarek
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
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Kowalczyk P, Wojasiński M, Jaroszewicz J, Kopeć K, Ciach T. Controlled formation of highly porous polylactic acid‑calcium phosphate granules with defined structure. BIOMATERIALS ADVANCES 2022; 144:213195. [PMID: 36434927 DOI: 10.1016/j.bioadv.2022.213195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 10/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022]
Abstract
Synthetic bone repair materials are becoming increasingly popular in tissue engineering as a replacement for autografts and human/animal-based bone grafts. The biomedical application requires precise control over the material composition and structure, as well as over the size of granulate used for filling the bone defects, as the pore size and interconnectivity affect the regeneration process. This paper proposes a process of alloplastic and biodegradable polylactic acid/β-tricalcium phosphate granulates preparation and its parameters described. Using solvent-induced phase separation technique, porous spheres have been obtained in various sizes and morphologies. The design of the experiment's approach generated an experimental plan for further statistical modeling using the resulting data. The statistical modeling approach to the data from conducting a designed set of experiments allowed analysis of the influence of process parameters on the properties of the resulting granules. We confirmed that the content of β-tricalcium phosphate plays the most significant role in the size distribution of prepared granulate. The shape of the particles becomes less spherical with higher phosphate concentration in the emulsion. The proposed technique allows preparing porous granulates in the 0.2-1.8 mm diameter range, where granules' mean diameter and sphericity are tunable with polymer and phosphate concentrations. The granulate created a potentially implantable scaffold for resected bone regeneration, as cytotoxicity tests assured the material is non-cytotoxic in vitro, and human mesenchymal stem cells have been cultured on the surface of granulates. Results from cell cultures seeded on the Resomer LR 706S granulates were the most promising.
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Affiliation(s)
- Piotr Kowalczyk
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland.
| | - Michał Wojasiński
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Jakub Jaroszewicz
- Faculty of Material Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland
| | - Kamil Kopeć
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
| | - Tomasz Ciach
- Department of Biotechnology and Bioprocess Engineering, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Waryńskiego 1, 00-645 Warsaw, Poland
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Ulatowski K, Wierzchowski K, Fiuk J, Sobieszuk P. Effect of Nanobubble Presence on Murine Fibroblasts and Human Leukemia Cell Cultures. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8575-8584. [PMID: 35776689 PMCID: PMC9301908 DOI: 10.1021/acs.langmuir.2c00819] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Nanobubbles can enhance both the proliferation and metabolic activity of microorganisms (mainly bacteria) and the growth of the whole higher organisms such as mice, fish, or plants. The critical fact is that nanobubbles of different gases can affect given cells differently. As animal cell cultures are used in industry and research studies, investigations of their interactions with nanobubbles should be carried out. This study aims to uncover whether the presence of nanobubbles improves the proliferation rate and metabolic activity of L929 fibroblasts and HL60 leukemia cells as exemplary animal cell lines of adherent and non-adherent cells, respectively. The long-term (8-day) cultures of both L929 and HL-60 cells with nanobubble addition to the appropriate medium were carried out. The medium was not exchanged for the whole duration of the culture. Nanobubbles of two gases - oxygen and nitrogen - were dispersed in the appropriate media and then used to culture cells. The density and viability of cells were assessed microscopically while their metabolic activity was determined using PrestoBlue or XTT assays. Additionally, we have performed the analysis of substrate consumption rate during the growth and activity of lactate dehydrogenase. We have shown that nanodispersion of both gases enhances the proliferation rate and metabolic activity of L929. For HL-60 cultures, reference cultures exhibited better viability, cell density, and metabolic activity than those with either oxygen or nitrogen nanobubbles. Obtained results clearly show that nanobubble dispersions of both oxygen and nitrogen positively affect the cultures of L929 while inhibiting the growth of HL-60 cells. We suspect that a similar positive effect would be visible for other adherent cells, similar to L929. Such results are promising for intensifying the growth of animal or human cells in routine cell cultures.
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Carvalho DN, Gonçalves C, Oliveira JM, Williams DS, Mearns-Spragg A, Reis RL, Silva TH. A Design of Experiments (DoE) Approach to Optimize Cryogel Manufacturing for Tissue Engineering Applications. Polymers (Basel) 2022; 14:2026. [PMID: 35631910 PMCID: PMC9143905 DOI: 10.3390/polym14102026] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/07/2022] [Accepted: 05/13/2022] [Indexed: 02/05/2023] Open
Abstract
Marine origin polymers represent a sustainable and natural alternative to mammal counterparts regarding the biomedical application due to their similarities with proteins and polysaccharides present in extracellular matrix (ECM) in humans and can reduce the risks associated with zoonosis and overcoming social- and religious-related constraints. In particular, collagen-based biomaterials have been widely explored in tissue engineering scaffolding applications, where cryogels are of particular interest as low temperature avoids protein denaturation. However, little is known about the influence of the parameters regarding their behavior, i.e., how they can influence each other toward improving their physical and chemical properties. Factorial design of experiments (DoE) and response surface methodology (RSM) emerge as tools to overcome these difficulties, which are statistical tools to find the most influential parameter and optimize processes. In this work, we hypothesized that a design of experiments (DoE) model would be able to support the optimization of the collagen-chitosan-fucoidan cryogel manufacturing. Therefore, the parameters temperature (A), collagen concentration (B), and fucoidan concentration (C) were carefully considered to be applied to the Box-Behnken design (three factors and three levels). Data obtained on rheological oscillatory measurements, as well as on the evaluation of antioxidant concentration and adenosine triphosphate (ATP) concentration, showed that fucoidan concentration could significantly influence collagen-chitosan-fucoidan cryogel formation, creating a stable internal polymeric network promoted by ionic crosslinking bonds. Additionally, the effect of temperature significantly contributed to rheological oscillatory properties. Overall, the condition that allowed us to have better results, from an optimization point of view according to the DoE, were the gels produced at -80 °C and composed of 5% of collagen, 3% of chitosan, and 10% fucoidan. Therefore, the proposed DoE model was considered suitable for predicting the best parameter combinations needed to develop these cryogels.
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Affiliation(s)
- Duarte Nuno Carvalho
- 3B’s Research Group, I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco, 4805-017 Guimarães, Portugal; (D.N.C.); (J.M.O.); (R.L.R.); (T.H.S.)
- ICVS/3B’s—P.T. Government Associate Laboratory, Braga, 4805-017 Guimarães, Portugal
| | - Cristiana Gonçalves
- 3B’s Research Group, I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco, 4805-017 Guimarães, Portugal; (D.N.C.); (J.M.O.); (R.L.R.); (T.H.S.)
- ICVS/3B’s—P.T. Government Associate Laboratory, Braga, 4805-017 Guimarães, Portugal
| | - Joaquim Miguel Oliveira
- 3B’s Research Group, I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco, 4805-017 Guimarães, Portugal; (D.N.C.); (J.M.O.); (R.L.R.); (T.H.S.)
- ICVS/3B’s—P.T. Government Associate Laboratory, Braga, 4805-017 Guimarães, Portugal
| | - David S. Williams
- Jellagen Limited, Unit G6, Capital Business Park, Parkway, St. Mellons, Cardiff CF3 2PY, UK; (D.S.W.); (A.M.-S.)
| | - Andrew Mearns-Spragg
- Jellagen Limited, Unit G6, Capital Business Park, Parkway, St. Mellons, Cardiff CF3 2PY, UK; (D.S.W.); (A.M.-S.)
| | - Rui L. Reis
- 3B’s Research Group, I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco, 4805-017 Guimarães, Portugal; (D.N.C.); (J.M.O.); (R.L.R.); (T.H.S.)
- ICVS/3B’s—P.T. Government Associate Laboratory, Braga, 4805-017 Guimarães, Portugal
| | - Tiago H. Silva
- 3B’s Research Group, I3B’s—Research Institute on Biomaterials, Biodegradables and Biomimetics of University of Minho, Headquarters of the European Institute of Excellence on Tissue Engineering and Regenerative Medicine, AvePark, Barco, 4805-017 Guimarães, Portugal; (D.N.C.); (J.M.O.); (R.L.R.); (T.H.S.)
- ICVS/3B’s—P.T. Government Associate Laboratory, Braga, 4805-017 Guimarães, Portugal
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