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Bradford JP, Hernandez-Moreno G, Pillai RR, Hernandez-Nichols AL, Thomas V. Low-Temperature Plasmas Improving Chemical and Cellular Properties of Poly (Ether Ether Ketone) Biomaterial for Biomineralization. MATERIALS (BASEL, SWITZERLAND) 2023; 17:171. [PMID: 38204023 PMCID: PMC10780010 DOI: 10.3390/ma17010171] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Revised: 12/05/2023] [Accepted: 12/07/2023] [Indexed: 01/12/2024]
Abstract
Osteoblastic and chemical responses to Poly (ether ether ketone) (PEEK) material have been improved using a variety of low-temperature plasmas (LTPs). Surface chemical properties are modified, and can be used, using low-temperature plasma (LTP) treatments which change surface functional groups. These functional groups increase biomineralization, in simulated body fluid conditions, and cellular viability. PEEK scaffolds were treated, with a variety of LTPs, incubated in simulated body fluids, and then analyzed using multiple techniques. First, scanning electron microscopy (SEM) showed morphological changes in the biomineralization for all samples. Calcein staining, Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS) confirmed that all low-temperature plasma-treated groups showed higher levels of biomineralization than the control group. MTT cell viability assays showed LTP-treated groups had increased cell viability in comparison to non-LTP-treated controls. PEEK treated with triethyl phosphate plasma (TEP) showed higher levels of cellular viability at 82.91% ± 5.00 (n = 6) and mineralization. These were significantly different to both the methyl methacrylate (MMA) 77.38% ± 1.27, ethylene diamine (EDA) 64.75% ± 6.43 plasma-treated PEEK groups, and the control, non-plasma-treated group 58.80 ± 2.84. FTIR showed higher levels of carbonate and phosphate formation on the TEP-treated PEEK than the other samples; however, calcein staining fluorescence of MMA and TEP-treated PEEK had the highest levels of biomineralization measured by pixel intensity quantification of 101.17 ± 4.63 and 96.35 ± 3.58, respectively, while EDA and control PEEK samples were 89.53 ± 1.74 and 90.49 ± 2.33, respectively. Comparing different LTPs, we showed that modified surface chemistry has quantitatively measurable effects that are favorable to the cellular, biomineralization, and chemical properties of PEEK.
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Affiliation(s)
- John P. Bradford
- Polymer and Healthcare Material/Devices, Department of Mechanical and Materials Engineering, The University of Alabama, Birmingham, AL 35294, USA; (J.P.B.); (G.H.-M.); (R.R.P.)
| | - Gerardo Hernandez-Moreno
- Polymer and Healthcare Material/Devices, Department of Mechanical and Materials Engineering, The University of Alabama, Birmingham, AL 35294, USA; (J.P.B.); (G.H.-M.); (R.R.P.)
| | - Renjith R. Pillai
- Polymer and Healthcare Material/Devices, Department of Mechanical and Materials Engineering, The University of Alabama, Birmingham, AL 35294, USA; (J.P.B.); (G.H.-M.); (R.R.P.)
| | - Alexandria L. Hernandez-Nichols
- Department of Cellular and Molecular Pathology, Heersink School of Medicine, The University of Alabama, Birmingham, AL 35294, USA;
- Center for Free Radical Biology, The University of Alabama, Birmingham, AL 35294, USA
| | - Vinoy Thomas
- Polymer and Healthcare Material/Devices, Department of Mechanical and Materials Engineering, The University of Alabama, Birmingham, AL 35294, USA; (J.P.B.); (G.H.-M.); (R.R.P.)
- Department of Physics, Center for Nanoscale Materials and Bio-Integration (CNMB), The University of Alabama, Birmingham, AL 35294, USA
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Alizadeh K, Dezvare Y, Kamyab S, Amirian J, Brangule A, Bandere D. Development of Composite Sponge Scaffolds Based on Carrageenan (CRG) and Cerium Oxide Nanoparticles (CeO 2 NPs) for Hemostatic Applications. Biomimetics (Basel) 2023; 8:409. [PMID: 37754160 PMCID: PMC10527261 DOI: 10.3390/biomimetics8050409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/19/2023] [Accepted: 08/28/2023] [Indexed: 09/28/2023] Open
Abstract
In this study, a novel absorbable hemostatic agent was developed using carrageenan (CRG) as a natural polymer and cerium oxide nanoparticles (CeO2 NPs). CRG-CeO2-0.5 and CRG-CeO2-1 composites were prepared by compositing CeO2 to CRG + CeO2 at a weight ratio of 0.5:100 and 1:100, respectively. The physicochemical and structural properties of these compounds were studied and compared with pristine CRG. Upon incorporation of CeO2 nanoparticles into the CRG matrix, significant reductions in hydrogel degradation were observed. In addition, it was noted that CRG-CeO2 exhibited better antibacterial and hemostatic properties than CRG hydrogel without CeO2 NPs. The biocompatibility of the materials was tested using the NIH 3T3 cell line, and all samples were found to be nontoxic. Particularly, CRG-CeO2-1 demonstrated superior hemostatic effects, biocompatibility, and a lower degradation rate since more CeO2 NPs were present in the CRG matrix. Therefore, CRG-CeO2-1 has the potential to be used as a hemostatic agent and wound dressing.
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Affiliation(s)
- Kimia Alizadeh
- Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, North Kargar Street, Tehran 1439957131, Iran; (K.A.); (Y.D.); (S.K.)
| | - Yasaman Dezvare
- Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, North Kargar Street, Tehran 1439957131, Iran; (K.A.); (Y.D.); (S.K.)
| | - Shirin Kamyab
- Department of Life Science, Faculty of New Sciences and Technologies, University of Tehran, North Kargar Street, Tehran 1439957131, Iran; (K.A.); (Y.D.); (S.K.)
| | - Jhaleh Amirian
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (A.B.); (D.B.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, LV-1658 Riga, Latvia
| | - Agnese Brangule
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (A.B.); (D.B.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, LV-1658 Riga, Latvia
| | - Dace Bandere
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (A.B.); (D.B.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, LV-1658 Riga, Latvia
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Karahaliloglu Z, Ercan B, Hazer B. Impregnation of polyethylene terephthalate (PET) grafts with BMP-2 loaded functional nanoparticles for reconstruction of anterior cruciate ligament. J Microencapsul 2023; 40:197-215. [PMID: 36881484 DOI: 10.1080/02652048.2023.2188940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
Current artificial ligaments based on polyethylene terephthalate (PET) are associated with some disadvantages due to their hydrophobicity and low biocompatibility. In this study, we aimed to modify the surface of PET using polyethylene glycol (PEG)-terminated polystyrene (PS)-linoleic nanoparticles (PLinaS-g-PEG-NPs). We accomplished that BMP-2 in two different concentrations encapsulated in nanoparticles with an efficiency of 99.71 ± 1.5 and 99.95 ± 2.8%. While the dynamic contact angle of plain PET surface reduced from 116° to 115° after a measurement periods of 10 s, that of PLinaS-g-PEG-NPs modified PET from 80° to 17.5° within 0.35 s. According to in vitro BMP2 release study, BMP-2 was released 13.12 ± 1.76% and 45.47 ± 1.78% from 0.05 and 0.1BMP2-PLinaS-g-PEG-NPs modified PET at the end of 20 days, respectively. Findings from this study revealed that BMP2-PLinaS-g-PEG-NPs has a great potential to improve the artificial PET ligaments, and could be effectively applied for ACL reconstruction.
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Affiliation(s)
| | - Batur Ercan
- Department of Metallurgical and Materials Engineering, Middle East Technical University, Çankaya, Ankara, Turkey
- Biomedical Engineering Program, Middle East Technical University, Çankaya, Ankara, Turkey
- BIOMATEN, Center of Excellence in Biomaterials and Tissue Engineering, Middle East Technical University, Çankaya, Ankara, Turkey
| | - Baki Hazer
- Department of Aircraft Airframe Engine Maintenance, Kapadokya University, Ürgüp, Nevsehir, Turkey
- Department of Chemistry, Bulent Ecevit University, Zonguldak, Turkey
- Department of Nanotechnology Engineering, Bulent Ecevit University, Zonguldak, Turkey
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Hallan SS, Amirian J, Brangule A, Bandere D. Lipid-Based Nano-Sized Cargos as a Promising Strategy in Bone Complications: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1146. [PMID: 35407263 PMCID: PMC9000285 DOI: 10.3390/nano12071146] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023]
Abstract
Bone metastasis has been considered the fatal phase of cancers, which remains incurable and to be a challenge due to the non-availability of the ideal treatment strategy. Unlike bone cancer, bone metastasis involves the spreading of the tumor cells to the bones from different origins. Bone metastasis generally originates from breast and prostate cancers. The possibility of bone metastasis is highly attributable to its physiological milieu susceptible to tumor growth. The treatment of bone-related diseases has multiple complications, including bone breakage, reduced quality of life, spinal cord or nerve compression, and pain. However, anticancer active agents have failed to maintain desired therapeutic concentrations at the target site; hence, uptake of the drug takes place at a non-target site responsible for the toxicity at the cellular level. Interestingly, lipid-based drug delivery systems have become the center of interest for researchers, thanks to their biocompatible and bio-mimetic nature. These systems possess a great potential to improve precise bone targeting without affecting healthy tissues. The lipid nano-sized systems are not only limited to delivering active agents but also genes/peptide sequences/siRNA, bisphosphonates, etc. Additionally, lipid coating of inorganic nanomaterials such as calcium phosphate is an effective approach against uncontrollable rapid precipitation resulting in reduced colloidal stability and dispersity. This review summarizes the numerous aspects, including development, design, possible applications, challenges, and future perspective of lipid nano-transporters, namely liposomes, exosomes, solid lipid nanoparticles (SLN), nanostructured lipid carriers (NLC), and lipid nanoparticulate gels to treat bone metastasis and induce bone regeneration. Additionally, the economic suitability of these systems has been discussed and different alternatives have been discussed. All in all, through this review we will try to understand how far nanomedicine is from clinical and industrial applications in bone metastasis.
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Affiliation(s)
- Supandeep Singh Hallan
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (S.S.H.); (J.A.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Kalku Street 1, LV-1658 Riga, Latvia
| | - Jhaleh Amirian
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (S.S.H.); (J.A.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Kalku Street 1, LV-1658 Riga, Latvia
| | - Agnese Brangule
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (S.S.H.); (J.A.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Kalku Street 1, LV-1658 Riga, Latvia
| | - Dace Bandere
- Department of Pharmaceutical Chemistry, Riga Stradins University, Dzirciema 16, LV-1007 Riga, Latvia; (S.S.H.); (J.A.)
- Baltic Biomaterials Centre of Excellence, Headquarters at Riga Technical University, Kalku Street 1, LV-1658 Riga, Latvia
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Jeznach O, Kołbuk D, Marzec M, Bernasik A, Sajkiewicz P. Aminolysis as a surface functionalization method of aliphatic polyester nonwovens: impact on material properties and biological response. RSC Adv 2022; 12:11303-11317. [PMID: 35425046 PMCID: PMC8997583 DOI: 10.1039/d2ra00542e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 04/02/2022] [Indexed: 12/14/2022] Open
Abstract
Aminolysis treatment improves L929 cell–scaffold interaction. It is possible to reach compromise between the concentration of NH2 groups and mechanical properties change.
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Affiliation(s)
- Oliwia Jeznach
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland
| | - Dorota Kołbuk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland
| | - Mateusz Marzec
- AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Cracow, Poland
| | - Andrzej Bernasik
- AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Cracow, Poland
| | - Paweł Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland
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Functionalization of Electrospun Polycaprolactone Scaffolds with Matrix-Binding Osteocyte-Derived Extracellular Vesicles Promotes Osteoblastic Differentiation and Mineralization. Ann Biomed Eng 2021; 49:3621-3635. [PMID: 34664147 PMCID: PMC8671272 DOI: 10.1007/s10439-021-02872-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/28/2021] [Indexed: 12/14/2022]
Abstract
Synthetic polymeric materials have demonstrated great promise for bone tissue engineering based on their compatibility with a wide array of scaffold-manufacturing techniques, but are limited in terms of the bioactivity when compared to naturally occurring materials. To enhance the regenerative properties of these materials, they are commonly functionalised with bioactive factors to guide growth within the developing tissue. Extracellular matrix vesicles (EVs) play an important role in facilitating endochondral ossification during long bone development and have recently emerged as important mediators of cell-cell communication coordinating bone regeneration, and thus represent an ideal target to enhance the regenerative properties of synthetic scaffolds. Therefore, in this paper we developed tools and protocols to enable the attachment of MLO-Y4 osteocyte-derived EVs onto electrospun polycaprolactone (PCL) scaffolds for bone repair. Initially, we optimize a method for the functionalization of PCL materials with collagen type-1 and fibronectin, inspired by the behaviour of matrix vesicles during endochondral ossification, and demonstrate that this is an effective method for the adhesion of EVs to the material surface. We then used this functionalization process to attach osteogenic EVs, collected from mechanically stimulated MLO-Y4 osteocytes, to collagen-coated electrospun PCL scaffolds. The EV-functionalized scaffold promoted osteogenic differentiation (measured by increased ALP activity) and mineralization of the matrix. In particular, EV-functionalised scaffolds exhibited significant increases in matrix mineralization particularly at earlier time points compared to uncoated and collagen-coated controls. This approach to matrix-based adhesion of EVs provides a mechanism for incorporating vesicle signalling into polyester scaffolds and demonstrates the potential of osteocyte derived EVs to enhance the rate of bone tissue regeneration.
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Rittipakorn P, Thuaksuban N, Mai-ngam K, Charoenla S, Noppakunmongkolchai W. Bioactivity of a Novel Polycaprolactone-Hydroxyapatite Scaffold Used as a Carrier of Low Dose BMP-2: An In Vitro Study. Polymers (Basel) 2021; 13:polym13030466. [PMID: 33535638 PMCID: PMC7867198 DOI: 10.3390/polym13030466] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 01/26/2021] [Accepted: 01/28/2021] [Indexed: 01/23/2023] Open
Abstract
Scaffolds of polycaprolactone-30% hydroxyapatite (PCL-30% HA) were fabricated using melt stretching and multilayer deposition (MSMD), and the in vitro response of osteoblasts to the scaffolds was assessed. In group A, the scaffolds were immersed in 10 µg/mL bone morphogenetic protein-2 (BMP-2) solution prior to being seeded with osteoblasts, and they were cultured in the medium without BMP-2. In group B, the cell-scaffold constructs without BMP-2 were cultured in medium containing 10 µg/mL BMP-2. The results showed greater cell proliferation in group A. The upregulation of runt-related transcription factor 2 and osteocalcin genes correlated with the release of BMP-2 from the scaffolds. The PCL-30% HA MSMD scaffolds appear to be suitable for use as osteoconductive frameworks and BMP-2 carriers.
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Affiliation(s)
- Pawornwan Rittipakorn
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand;
| | - Nuttawut Thuaksuban
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Prince of Songkla University, Hatyai, Songkhla 90110, Thailand;
- Correspondence: ; Tel.: +66-954592492
| | - Katanchalee Mai-ngam
- Ministry of Higher Education Science Research and Innovation (MHESRI), Ratchathewi, Bangkok 10400, Thailand; (K.M.-n.); (S.C.); (W.N.)
| | - Satrawut Charoenla
- Ministry of Higher Education Science Research and Innovation (MHESRI), Ratchathewi, Bangkok 10400, Thailand; (K.M.-n.); (S.C.); (W.N.)
| | - Warobon Noppakunmongkolchai
- Ministry of Higher Education Science Research and Innovation (MHESRI), Ratchathewi, Bangkok 10400, Thailand; (K.M.-n.); (S.C.); (W.N.)
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Horakova J, Oulehlova Z, Novotny V, Jencova V, Mikes P, Havlickova K, Prochazkova R, Heczkova B, Hadinec P, Sehr S, Wendel HP, Bell CM, Krajewski S. The assessment of electrospun scaffolds fabricated from polycaprolactone with the addition of L-arginine. Biomed Phys Eng Express 2020; 6:025012. [PMID: 33438638 DOI: 10.1088/2057-1976/ab756f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Polycaprolactone (PCL) was electrospun with the addition of arginine (Arg), an α-amino acid that accelerates the healing process. The efficient needleless electrospinning technique was used for the fabrication of the nanofibrous layers. The materials produced consisted mainly of fibers with diameters of between 200 and 400 nm. Moreover, both microfibers and beads were present within the layers. Higher bead sizes were observed with the increased addition of arginine. The arginine content within the layers as well as the weight of the resultant electrospun materials were enhanced with the increased addition of arginine to the electrospinning solution (1, 5 and 10 wt%). The PCL + 1% Arg nanofibrous layer contained 5.67 ± 0.04% of arginine, the PCL + 5% Arg layer 22.66 ± 0.24% of arginine and the PCL + 10% Arg layer 37.33 ± 0.39% of arginine according to the results of the elemental analysis. A high burst release within 5 h of soaking was recorded for the PCL + 5% and PCL + 10% nanofibrous layers. However, the release rate of arginine from the PCL + 1% Arg was significantly slower, reaching a maximum level after 72 h of soaking. The resulting materials were hydrophobic. Hemocompatibility testing under static conditions revealed no effect on hemolysis following the addition of arginine and the prolongation of the prothrombin time with the increased addition of arginine, thus exerting an influence on the extrinsic and common pathway of coagulation activation. The results of the dynamic hemocompatibility assessment revealed that the numbers of blood cells and platelets were not affected significantly by the various electrospun samples during incubation. The TAT, β-thromboglobulin and SC5-b9 concentrations were characterized by a moderate increase in the PCL group compared to those of the control group. The presence of arginine resulted in a decrease in the investigated hemocompatibility markers. The PMN elastase levels were comparable with respect to all the groups.
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Affiliation(s)
- Jana Horakova
- Department of Nonwovens and Nanofibrous Materials, Faculty of Textile Engineering, Technical University of Liberec, Studentska 1402/2, 460 01 Liberec, Czech Republic
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Oai K, Inoue Y, Nakao A, Fukazawa K, Ishihara K. Antibacterial effect of nanometer‐size grafted layer of quaternary ammonium polymer on poly(ether ether ketone) substrate. J Appl Polym Sci 2020. [DOI: 10.1002/app.49088] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Keiko Oai
- Department of Materials Engineering, School of EngineeringThe University of Tokyo Tokyo Japan
| | - Yuuki Inoue
- Department of Materials Engineering, School of EngineeringThe University of Tokyo Tokyo Japan
| | | | - Kyoko Fukazawa
- Department of Materials Engineering, School of EngineeringThe University of Tokyo Tokyo Japan
| | - Kazuhiko Ishihara
- Department of Materials Engineering, School of EngineeringThe University of Tokyo Tokyo Japan
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Jeznach O, Kolbuk D, Sajkiewicz P. Aminolysis of Various Aliphatic Polyesters in a Form of Nanofibers and Films. Polymers (Basel) 2019; 11:E1669. [PMID: 31614975 PMCID: PMC6835534 DOI: 10.3390/polym11101669] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 12/19/2022] Open
Abstract
Surface functionalization of polymer scaffolds is a method used to improve interactions of materials with cells. A frequently used method for polyesters is aminolysis reaction, which introduces free amine groups on the surface. In this study, nanofibrous scaffolds and films of three different polyesters-polycaprolactone (PCL), poly(lactide-co-caprolactone) (PLCL), and poly(l-lactide) (PLLA) were subjected to this type of surface modification under the same conditions. Efficiency of aminolysis was evaluated on the basis of ninhydrin tests and ATR-FTIR spectroscopy. Also, impact of this treatment on the mechanical properties, crystallinity, and wettability of polyesters was compared and discussed from the perspective of aminolysis efficiency. It was shown that aminolysis is less efficient in the case of nanofibers, particularly for PCL nanofibers. Our hypothesis based on the fundamentals of classical high speed spinning process is that the lower efficiency of aminolysis in the case of nanofibers is associated with the radial distribution of crystallinity of electrospun fiber with more crystalline skin, strongly inhibiting the reaction. Moreover, the water contact angle results demonstrate that the effect of free amino groups on wettability is very different depending on the type and the form of polymer. The results of this study can help to understand fundamentals of aminolysis-based surface modification.
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Affiliation(s)
- Oliwia Jeznach
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland.
| | - Dorota Kolbuk
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland.
| | - Paweł Sajkiewicz
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego 5B, 02-106 Warsaw, Poland.
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Ambekar RS, Kandasubramanian B. Progress in the Advancement of Porous Biopolymer Scaffold: Tissue Engineering Application. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05334] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rushikesh S. Ambekar
- Rapid Prototype & Electrospinning Lab, Department of Metallurgical and Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune 411025, India
| | - Balasubramanian Kandasubramanian
- Rapid Prototype & Electrospinning Lab, Department of Metallurgical and Materials Engineering, DIAT (DU), Ministry of Defence, Girinagar, Pune 411025, India
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Aragón J, Salerno S, De Bartolo L, Irusta S, Mendoza G. Polymeric electrospun scaffolds for bone morphogenetic protein 2 delivery in bone tissue engineering. J Colloid Interface Sci 2018; 531:126-137. [PMID: 30029031 DOI: 10.1016/j.jcis.2018.07.029] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 01/05/2023]
Abstract
HYPOTHESIS The development of novel scaffolds based on biocompatible polymers is of great interest in the field of bone repair for fabrication of biodegradable scaffolds that mimic the extracellular matrix and have osteoconductive and osteoinductive properties for enhanced bone regeneration. EXPERIMENTS Polycaprolactone (PCL) and polycaprolactone/polyvinyl acetate (PCL/PVAc) core-shell fibers were synthesised and decorated with poly(lactic-co-glycolic acid) [PLGA] particles loaded with bone morphogenetic protein 2 (BMP2) by simultaneous electrospinning and electrospraying. Hydroxyapatite nanorods (HAn) were loaded into the core of fibers. The obtained scaffolds were characterised by scanning and transmission electron microscopy, Fourier-transform infrared spectroscopy, and thermogravimetric analysis. The in vitro potential of these materials for bone regeneration was assessed in biodegradation assays, osteoblast viability assays, and analyses of expression of specific bone markers, such as alkaline phosphatase (ALP), osteocalcin (OCN), and osteopontin (OPN). FINDINGS PLGA particles were homogeneously distributed in the entire fibre mat. The growth factor load was 1.2-1.7 μg/g of the scaffold whereas the HAn load was in the 8.8-12.6 wt% range. These scaffolds were able to support and enhance cell growth and proliferation facilitating the expression of osteogenic and osteoconductive markers (OCN and OPN). These observations underline the great importance of the presence of BMP2 in scaffolds for bone remodelling as well as the good potential of the newly developed scaffolds for clinical use in tissue engineering.
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Affiliation(s)
- Javier Aragón
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Rio Ebro-Edificio I+D, C/Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain.
| | - Simona Salerno
- Institute for Membrane Technology, National Research Council of Italy, ITM-CNR c/o University of Calabria, Via P. Bucci cubo 17/C, I-87036 Rende, Italy.
| | - Loredana De Bartolo
- Institute for Membrane Technology, National Research Council of Italy, ITM-CNR c/o University of Calabria, Via P. Bucci cubo 17/C, I-87036 Rende, Italy.
| | - Silvia Irusta
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Rio Ebro-Edificio I+D, C/Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain; Networking Research Center for Bioengineering, Biomaterials and Nanomedicine, CIBER-BBN, 28029 Madrid, Spain.
| | - Gracia Mendoza
- Department of Chemical Engineering, Aragon Institute of Nanoscience (INA), University of Zaragoza, Campus Rio Ebro-Edificio I+D, C/Mariano Esquillor S/N, 50018 Zaragoza, Spain; Aragon Health Research Institute (IIS Aragon), 50009 Zaragoza, Spain.
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Wei D, Qiao R, Dao J, Su J, Jiang C, Wang X, Gao M, Zhong J. Soybean Lecithin-Mediated Nanoporous PLGA Microspheres with Highly Entrapped and Controlled Released BMP-2 as a Stem Cell Platform. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1800063. [PMID: 29682876 DOI: 10.1002/smll.201800063] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/09/2018] [Indexed: 06/08/2023]
Abstract
Injectable polymer microsphere-based stem cell delivery systems have a severe problem that they do not offer a desirable environment for stem cell adhesion, proliferation, and differentiation because it is difficult to entrap a large number of hydrophilic functional protein molecules into the core of hydrophobic polymer microspheres. In this work, soybean lecithin (SL) is applied to entrap hydrophilic bone morphogenic protein-2 (BMP-2) into nanoporous poly(lactide-co-glycolide) (PLGA)-based microspheres by a two-step method: SL/BMP-2 complexes preparation and PLGA/SL/BMP-2 microsphere preparation. The measurements of their physicochemical properties show that PLGA/SL/BMP-2 microspheres had significantly higher BMP-2 entrapment efficiency and controlled triphasic BMP-2 release behavior compared with PLGA/BMP-2 microspheres. Furthermore, the in vitro and in vivo stem cell behaviors on PLGA/SL/BMP-2 microspheres are analyzed. Compared with PLGA/BMP-2 microspheres, PLGA/SL/BMP-2 microspheres have significantly higher in vitro and in vivo stem cell attachment, proliferation, differentiation, and matrix mineralization abilities. Therefore, injectable nanoporous PLGA/SL/BMP-2 microspheres can be potentially used as a stem cell platform for bone tissue regeneration. In addition, SL can be potentially used to prepare hydrophilic protein-loaded hydrophobic polymer microspheres with highly entrapped and controlled release of proteins.
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Affiliation(s)
- Daixu Wei
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
- School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Ruirui Qiao
- CAS Key Laboratory of Colloid, and Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jinwei Dao
- School of Life Sciences, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Jing Su
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200438, China
| | - Chengmin Jiang
- Department of Chemistry, Rice University, Houston, TX, 77005, USA
| | - Xichang Wang
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
| | - Mingyuan Gao
- CAS Key Laboratory of Colloid, and Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jian Zhong
- Laboratory of Quality and Safety Risk Assessment for Aquatic Products on Storage and Preservation (Shanghai), Ministry of Agriculture, Shanghai Engineering Research Center of Aquatic-Product Processing and Preservation, College of Food Science & Technology, Shanghai Ocean University, Shanghai, 201306, China
- State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai, 200438, China
- CAS Key Laboratory of Colloid, and Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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Qian Y, Zhou X, Sun H, Yang J, Chen Y, Li C, Wang H, Xing T, Zhang F, Gu N. Biomimetic Domain-Active Electrospun Scaffolds Facilitating Bone Regeneration Synergistically with Antibacterial Efficacy for Bone Defects. ACS APPLIED MATERIALS & INTERFACES 2018; 10:3248-3259. [PMID: 29172421 DOI: 10.1021/acsami.7b14524] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
To improve bone regeneration in oral microenvironment, we generated a novel biodegradable, antibacterial, and osteoconductive electrospun PLGA/PCL membrane as an ideal osteogenic scaffold. The novel three-layer membranes were structured with serial layers of electrospun chlorhexidine-doped-PLGA/PCL (PPC), PLGA/PCL (PP), and β-tricalcium phosphate-doped-PLGA/PCL (PPβ). To characterize osteoconductive properties of these membranes, MC3T3-E1 (MC) cultures were seeded onto the membranes for 14 days for evaluation of cell proliferation, morphology and gene/protein expression. In addition, MC cells were cultured onto different surfaces of the three-layer membranes, PPC layer facing MC cells (PPβ-PP-PPC) and PPβ layer facing MC cells (PPC-PP-PPβ) to evaluate surface-material effects. Membrane properties and structures were evaluated. Antibacterial properties against Streptococcus mutans and Staphylococcus aureus were determined. Scanning electron microscope demonstrated smaller interfiber spaces of PPC and PPβ-PP-PPC compared to PPβ, PPC-PP-PPβ, and PP. PPC and PPβ-PP-PPC exhibited hydrophilic property. The three-layer membranes (PPC-PP-PPβ and PPβ-PP-PPC) demonstrated significantly higher Young's modulus (94.99 ± 4.03 MPa and 92.88 ± 4.03 MPa) compared to PP (48.76 ± 18.15 MPa) or PPC (7.92 ± 3.97 MPa) (p < 0.05). No significant difference of cell proliferation was found among any groups at any time point (p > 0.05). Higher expression of integrins were detected at 12 h of cultures on PPC-PP-PPβ compared to the controls. Promoted osteoconductive effects of PPC-PP-PPβ were revealed by alkaline phosphatase assays and Western blot compared with the controls at 7 and 14 days. PPC, PPC-PP-PPβ and PPβ-PP-PPC exhibited a significantly wider antibacterial zone against the tested bacteria compared to PP and PPβ (p < 0.05). These results suggested that the three-layer electrospun membranes demonstrated superior properties: higher strength, better cell adhesion, and promoted osteoconductive properties compared to single-layer membrane: however, antibacterial properties were exhibited in three-layer electrospun membranes and chlorhexidine-doped single-layer membrane. We concluded that the novel three-layer membranes could be used as a biocompatible scaffold for intraoral bone regeneration due to its enhanced osteoconductive activity and antibacterial effect.
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Affiliation(s)
- Yunzhu Qian
- Center of Stomatology, The Second Affiliated Hospital of Soochow University , Suzhou 215004, People's Republic of China
| | - Xuefeng Zhou
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, People's Republic of China
| | - Hong Sun
- Xi'an Jiaotong University Suzhou Research Institute , Suzhou 215123, People's Republic of China
| | - Jianxin Yang
- Center of Stomatology, The Second Affiliated Hospital of Soochow University , Suzhou 215004, People's Republic of China
| | - Yi Chen
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, People's Republic of China
| | - Chao Li
- Xi'an Jiaotong University Suzhou Research Institute , Suzhou 215123, People's Republic of China
| | - Hongjin Wang
- Xi'an Jiaotong University Suzhou Research Institute , Suzhou 215123, People's Republic of China
| | - Tong Xing
- Xi'an Jiaotong University Suzhou Research Institute , Suzhou 215123, People's Republic of China
| | - Feimin Zhang
- Jiangsu Key Laboratory of Oral Diseases, Nanjing Medical University , Nanjing 210029, People's Republic of China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University , Nanjing 210096, People's Republic of China
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