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Lopresti F, Liga A, Capuana E, Gulfi D, Zanca C, Inguanta R, Brucato V, La Carrubba V, Carfì Pavia F. Effect of Polyhydroxyalkanoate (PHA) Concentration on Polymeric Scaffolds Based on Blends of Poly-L-Lactic Acid (PLLA) and PHA Prepared via Thermally Induced Phase Separation (TIPS). Polymers (Basel) 2022; 14:polym14122494. [PMID: 35746069 PMCID: PMC9229920 DOI: 10.3390/polym14122494] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 06/15/2022] [Indexed: 02/06/2023] Open
Abstract
Hybrid porous scaffolds composed of both natural and synthetic biopolymers have demonstrated significant improvements in the tissue engineering field. This study investigates for the first time the fabrication route and characterization of poly-L-lactic acid scaffolds blended with polyhydroxyalkanoate up to 30 wt%. The hybrid scaffolds were prepared by a thermally induced phase separation method starting from ternary solutions. The microstructure of the hybrid porous structures was analyzed by scanning electron microscopy and related to the blend composition. The porosity and the wettability of the scaffolds were evaluated through gravimetric and water contact angle measurements, respectively. The scaffolds were also characterized in terms of the surface chemical properties via Fourier transform infrared spectroscopy in attenuated total reflectance. The mechanical properties were analyzed through tensile tests, while the crystallinity of the PLLA/PHA scaffolds was investigated by differential scanning calorimetry and X-ray diffraction.
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Affiliation(s)
- Francesco Lopresti
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
- Correspondence: (F.L.); (V.L.C.)
| | - Antonio Liga
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
| | - Elisa Capuana
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
| | - Davide Gulfi
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
| | - Claudio Zanca
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
| | - Rosalinda Inguanta
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
| | - Valerio Brucato
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
| | - Vincenzo La Carrubba
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
- ATeN Center, University of Palermo, Viale delle Scienze, 90128 Palermo, Italy
- Correspondence: (F.L.); (V.L.C.)
| | - Francesco Carfì Pavia
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90128 Palermo, Italy; (A.L.); (E.C.); (D.G.); (C.Z.); (R.I.); (V.B.); (F.C.P.)
- Consorzio Universitario di Caltanissetta, Corso Vittorio Emanuele 92, 93100 Caltanissetta, Italy
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Zeinali R, del Valle LJ, Torras J, Puiggalí J. Recent Progress on Biodegradable Tissue Engineering Scaffolds Prepared by Thermally-Induced Phase Separation (TIPS). Int J Mol Sci 2021; 22:ijms22073504. [PMID: 33800709 PMCID: PMC8036748 DOI: 10.3390/ijms22073504] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 03/24/2021] [Accepted: 03/25/2021] [Indexed: 12/23/2022] Open
Abstract
Porous biodegradable scaffolds provide a physical substrate for cells allowing them to attach, proliferate and guide the formation of new tissues. A variety of techniques have been developed to fabricate tissue engineering (TE) scaffolds, among them the most relevant is the thermally-induced phase separation (TIPS). This technique has been widely used in recent years to fabricate three-dimensional (3D) TE scaffolds. Low production cost, simple experimental procedure and easy processability together with the capability to produce highly porous scaffolds with controllable architecture justify the popularity of TIPS. This paper provides a general overview of the TIPS methodology applied for the preparation of 3D porous TE scaffolds. The recent advances in the fabrication of porous scaffolds through this technique, in terms of technology and material selection, have been reviewed. In addition, how properties can be effectively modified to serve as ideal substrates for specific target cells has been specifically addressed. Additionally, examples are offered with respect to changes of TIPS procedure parameters, the combination of TIPS with other techniques and innovations in polymer or filler selection.
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Affiliation(s)
- Reza Zeinali
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
- Correspondence: (R.Z.); (J.P.); Tel.: +34-93-401-1620 (R.Z.); +34-93-401-5649 (J.P.)
| | - Luis J. del Valle
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
| | - Joan Torras
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
| | - Jordi Puiggalí
- Departament d’Enginyeria Química, Universitat Politècnica de Catalunya, Escola d’Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; (L.J.d.V.); (J.T.)
- Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology, c/Baldiri Reixac 10-12, 08028 Barcelona, Spain
- Correspondence: (R.Z.); (J.P.); Tel.: +34-93-401-1620 (R.Z.); +34-93-401-5649 (J.P.)
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Zhou Z, Zhou Z, Liu W, Huang T, Zhao Y, Chen P, Wang D, Fang J. Preparation and Degradation Behaviors of Poly(L-lactide-co-glycolide-co-ε-caprolactone)/1,4-butanediamine Modified Poly(lactic-co-glycolic acid) Blend Film. J MACROMOL SCI B 2020. [DOI: 10.1080/00222348.2020.1746027] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ziwei Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Zhihua Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
- Key Laboratory of Theoretical Organic Chemistry and Function Molecule of Ministry of Education, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Wenjuan Liu
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Tianlong Huang
- Department of Orthopedics, the Second Xiangya Hospital, Central South University, Changsha, P. R. China
| | - Yanmin Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Ping Chen
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Dan Wang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Jianjun Fang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
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Chen P, Zhou Z, Liu W, Zhao Y, Huang T, Li X, Duan J, Fang J. Preparation and Characterization of Poly(L-lactide-co-glycolide-co-ε-caprolactone) Scaffolds by Thermally Induced Phase Separation. J MACROMOL SCI B 2020. [DOI: 10.1080/00222348.2020.1735136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Ping Chen
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Zhihua Zhou
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
- Key Laboratory of Theoretical Organic Chemistry and Functional molecular, Ministry of Education, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Wenjuan Liu
- Hunan Provincial Key Laboratory of Controllable Preparation and Functional Application of Fine Polymers, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Yanmin Zhao
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Tianlong Huang
- Department of Orthopedics, Second Xiangya Hospital, Central South University, Changsha, P. R. China
| | - Xiaofei Li
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Jianglong Duan
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
| | - Jianjun Fang
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan, P. R. China
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