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Ftiti S, Cifuentes SC, Guidara A, Rams J, Tounsi H, Fernández-Blázquez JP. The Structural, Thermal and Morphological Characterization of Polylactic Acid/Β-Tricalcium Phosphate (PLA/Β-TCP) Composites upon Immersion in SBF: A Comprehensive Analysis. Polymers (Basel) 2024; 16:719. [PMID: 38475402 DOI: 10.3390/polym16050719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Biocomposite films based on PLA reinforced with different β-TCP contents (10%, 20%, and 25%wt.) were fabricated via solvent casting and immersed in SBF for 7, 14, and 21 days. The bioactivity, morphological, and thermal behavior of composites with immersion were studied using scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) microanalysis, weight loss (WL), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and gel permeation chromatography (GPC). This broad analysis leads to a deeper understanding of the evolution of the polymer-filler interaction with the degradation of the biocomposites. The results showed that β-TCP gradually evolved into carbonated hydroxyapatite as the immersion time increased. This evolution affected the interaction of β-TCP with PLA. PLA and β-TCP interactions differed from PLA and carbonated hydroxyapatite interactions. It was observed that β-TCP inhibited PLA hydrolysis but accelerated the thermal degradation of the polymer. β-TCP retarded the cold crystallization of PLA and hindered its crystallinity. However, after immersion in SBF, particles accelerated the cold crystallization of PLA. Therefore, considering the evolution of β-TCP with immersion in SBF is crucial for an accurate analysis of the biocomposites' degradation. These findings enhance the comprehension of the degradation mechanism in PLA/β-TCP, which is valuable for predicting the degradation performance of PLA/β-TCP in medical applications.
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Affiliation(s)
- Sondes Ftiti
- Laboratory of Advanced Materials (LR01ES26), National Engineering School of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Sandra C Cifuentes
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos (URJC), 28933 Móstoles, Spain
| | - Awatef Guidara
- Laboratory of Advanced Materials (LR01ES26), National Engineering School of Sfax, University of Sfax, Sfax 3038, Tunisia
| | - Joaquín Rams
- Department of Applied Mathematics, Materials Science and Engineering and Electronic Technology, Universidad Rey Juan Carlos (URJC), 28933 Móstoles, Spain
| | - Hassib Tounsi
- Laboratory of Advanced Materials (LR01ES26), National Engineering School of Sfax, University of Sfax, Sfax 3038, Tunisia
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Zarei Chamgordani N, Asiaei S, Ghorbani-Bidkorpeh F, Babaee Foroutan M, Mahboubi A, Moghimi HR. Fabrication of controlled-release silver nanoparticle polylactic acid microneedles with long-lasting antibacterial activity using a micro-molding solvent-casting technique. Drug Deliv Transl Res 2024; 14:386-399. [PMID: 37578649 DOI: 10.1007/s13346-023-01406-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2023] [Indexed: 08/15/2023]
Abstract
Most topical drug delivery techniques do not provide therapeutic concentrations for treatment of surgical site and other local infections and, therefore, require some kind of enhancement, such as physical methods like microneedles, the subject of the present investigation. Here, controlled-release long-lasting antibacterial polylactic acid (PLA) microneedles containing 1, 3, and 5% silver nanoparticles (AgNP) were prepared using micro-molding solvent-casting technique. Microneedles were characterized using optical microscopy, SEM, FTIR, XRD, and DSC. Also, mechanical strength, barrier disruption ability, insertion depth, in-vitro release kinetics, antibacterial activity against Staphylococcus aureus and Pseudomonas aeruginosa, and silver permeation through rat skin were studied. Microneedles showed good mechanical strength with no signs of failure at an optimum PLA concentration of 25% (w/v). FTIR revealed no chemical interaction between ingredients, and XRD confirmed presence of AgNP in microneedles. Microneedles penetrated the skin model at depth of up to 1143 μm resulting 5-7 times increase in transepidermal water loss (TEWL). Release studies showed 2.2, 6.8, and 8.1 µg silver release from the whole body (obeying Higuchi's release model) and 0.33, 0.45, and 0.78 µg from the needles alone (obeying Fickian-cylindrical type release) for 1, 3, and 5% AgNP microneedles, respectively. Also, prolonged antibacterial activity (for 34 days) was observed. Skin studies over 72 h indicated that besides needles, silver is also released from the baseplate which had a marginal share in total silver permeation through the skin. In conclusion, a straightforward solvent-casting technique can be used to successfully prepare strong AgNP-containing PLA microneedles capable of long-lasting antibacterial activity.
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Affiliation(s)
- Nasrin Zarei Chamgordani
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sasan Asiaei
- Sensors and Integrated Bio-MEMS/Microfluidics Laboratory, School of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran
| | - Fatemeh Ghorbani-Bidkorpeh
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Arash Mahboubi
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hamid Reza Moghimi
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Protein Technology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Nguyen NM, Kakarla AB, Nukala SG, Kong C, Baji A, Kong I. Evaluation of Physicochemical Properties of a Hydroxyapatite Polymer Nanocomposite for Use in Fused Filament Fabrication. Polymers (Basel) 2023; 15:3980. [PMID: 37836029 PMCID: PMC10575009 DOI: 10.3390/polym15193980] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/26/2023] [Accepted: 09/28/2023] [Indexed: 10/15/2023] Open
Abstract
Over the last decade, there has been an increasing interest in the use of bioceramics for biomedical purposes. Bioceramics, specifically those made of calcium phosphate, are commonly used in dental and orthopaedic applications. In this context, hydroxyapatite (HA) is considered a viable option for hard tissue engineering applications given its compositional similarity to bioapatite. However, owing to their poor mechanobiology and biodegradability, traditional HA-based composites have limited utilisation possibilities in bone, cartilage and dental applications. Therefore, the efficiency of nano HA (nHA) has been explored to address these limitations. nHA has shown excellent remineralising effects on initial enamel lesions and is widely used as an additive for improving existing dental materials. Furthermore, three-dimensional printing (3DP) or fused deposition modelling that can be used for creating dental and hard tissue scaffolds tailored to each patient's specific anatomy has attracted considerable interest. However, the materials used for producing hard tissue with 3DP are still limited. Therefore, the current study aimed to develop a hybrid polymer nanocomposite composed of nHA, nanoclay (NC) and polylactic acid (PLA) that was suitable for 3DP. The nHA polymer nanocomposites were extruded into filaments and their physiochemical properties were evaluated. The results showed that the addition of nHA and NC to the PLA matrix significantly increased the water absorption and contact angle. In addition, the hardness increased from 1.04 to 1.25 times with the incorporation of nHA. In sum, the nHA-NC-reinforced PLA could be used as 3DP filaments to generate bone and dental scaffolds, and further studies are needed on the biocompatibility of this material.
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Affiliation(s)
- Ngoc Mai Nguyen
- Advanced Polymer and Composite Materials Laboratory, Department of Engineering, School of Computing, Engineering and Mathematical Sciences, La Trobe University, Bendigo, VIC 3552, Australia
| | - Akesh Babu Kakarla
- Advanced Polymer and Composite Materials Laboratory, Department of Engineering, School of Computing, Engineering and Mathematical Sciences, La Trobe University, Bendigo, VIC 3552, Australia
| | - Satya Guha Nukala
- Advanced Polymer and Composite Materials Laboratory, Department of Engineering, School of Computing, Engineering and Mathematical Sciences, La Trobe University, Bendigo, VIC 3552, Australia
| | - Cin Kong
- Department of Biomedical Sciences, University of Nottingham Malaysia Campus, Semenyih 43500, Selangor, Malaysia
| | - Avinash Baji
- Department of Engineering, School of Computing, Engineering and Mathematical Sciences, La Trobe University, Melbourne, VIC 3086, Australia
| | - Ing Kong
- Advanced Polymer and Composite Materials Laboratory, Department of Engineering, School of Computing, Engineering and Mathematical Sciences, La Trobe University, Bendigo, VIC 3552, Australia
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Demchenko V, Rybalchenko N, Zahorodnia S, Naumenko K, Riabov S, Kobylinskyi S, Vashchuk A, Mamunya Y, Iurzhenko M, Demchenko O, Adamus G, Kowalczuk M. Preparation, Characterization, and Antimicrobial and Antiviral Properties of Silver-Containing Nanocomposites Based on Polylactic Acid-Chitosan. ACS APPLIED BIO MATERIALS 2022; 5:2576-2585. [PMID: 35532757 DOI: 10.1021/acsabm.2c00034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Antimicrobial and antiviral nanocomposites based on polylactic acid (PLA) and chitosan were synthesized by a thermochemical reduction method of Ag+ ions in the PLA-Ag+-chitosan polymer films. Features of the structural, morphological, thermophysical, antimicrobial, antiviral, and cytotoxic properties of PLA-Ag-chitosan nanocomposites were studied by X-ray diffraction (XRD), transmission electron microscopy (TEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and antiviral, antimicrobial, and cytotoxic studies. The effects of temperature and the duration of reduction of Ag+ ions on the structure of PLA-Ag-chitosan nanocomposites were established. During the thermochemical reduction (T = 160 °C, t = 5 min) of silver palmitate ions in PLA-Ag+-chitosan polymer films, Ag nanoparticles with an average size of 4.2 nm were formed. PLA-Ag-chitosan polymer nanocomposites have strong antimicrobial activity against S. aureus and E. coli strains. In particular, for PLA-chitosan samples containing 4% Ag, the diameters of the S. aureus and E. coli growth inhibition zones were 25.8 and 25.0 mm, respectively. The antiviral activity of the nanocomposites against influenza A virus, herpes simplex virus type 1, and adenovirus serotype 2 was also revealed. The PLA-4%Ag-chitosan nanocomposites completely inhibited the cytopathic effect (CPE) of herpes virus type 1 by 5.12 log10TCID50/mL (high antiviral activity) and the development of the CPE of influenza virus and adenovirus by 0.60 and 1.07 log10TCID50/mL (relative antiviral activity). The obtained nanocomposites were not cytotoxic; they did not inhibit the viability of MDCK, BHK-21, and Hep-2 cell cultures.
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Affiliation(s)
- Valeriy Demchenko
- Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, Kyiv 02160, Ukraine.,E.O. Paton Electric Welding Institute, The National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine.,International Polish-Ukrainian Research Laboratory ADPOLCOM, Zabrze 41-819, Poland
| | - Nataliya Rybalchenko
- Zabolotny Institute of Microbiology and Virology, The National Academy of Sciences of Ukraine, Kyiv 03143, Ukraine
| | - Svetlana Zahorodnia
- Zabolotny Institute of Microbiology and Virology, The National Academy of Sciences of Ukraine, Kyiv 03143, Ukraine
| | - Krystyna Naumenko
- Zabolotny Institute of Microbiology and Virology, The National Academy of Sciences of Ukraine, Kyiv 03143, Ukraine
| | - Sergii Riabov
- Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, Kyiv 02160, Ukraine
| | - Serhii Kobylinskyi
- Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, Kyiv 02160, Ukraine
| | - Alina Vashchuk
- E.O. Paton Electric Welding Institute, The National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine
| | - Yevgen Mamunya
- Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, Kyiv 02160, Ukraine.,E.O. Paton Electric Welding Institute, The National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine.,International Polish-Ukrainian Research Laboratory ADPOLCOM, Zabrze 41-819, Poland
| | - Maksym Iurzhenko
- Institute of Macromolecular Chemistry, The National Academy of Sciences of Ukraine, Kyiv 02160, Ukraine.,E.O. Paton Electric Welding Institute, The National Academy of Sciences of Ukraine, Kyiv 03680, Ukraine.,International Polish-Ukrainian Research Laboratory ADPOLCOM, Zabrze 41-819, Poland
| | - Olena Demchenko
- National Research Center for Radiation Medicine, The National Academy of Medical Sciences of Ukraine, Kyiv 04050, Ukraine
| | - Grazyna Adamus
- International Polish-Ukrainian Research Laboratory ADPOLCOM, Zabrze 41-819, Poland.,Centre of Polymer and Carbon Materials, The Polish Academy of Sciences, Zabrze 41-819, Poland
| | - Marek Kowalczuk
- International Polish-Ukrainian Research Laboratory ADPOLCOM, Zabrze 41-819, Poland.,Centre of Polymer and Carbon Materials, The Polish Academy of Sciences, Zabrze 41-819, Poland
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Vishnu Chandar J, Mutharasu D, Mohamed K, Marsilla KIK, Shanmugan S, Azlan AA. Synergetic effect of micro-hBN and nano-Al2O3 fillers on structural, surface, thermal, and mechanical properties of PLA/hBN/Al 2O 3 hybrid composites: experimental and theoretical investigation. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2020.1861290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- J. Vishnu Chandar
- School of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - D. Mutharasu
- Western Digital Corporation, MCoE, PTDI-SSD, Western Digital Corporation, Seberang Perai Selatan, Malaysia
| | - K. Mohamed
- School of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - K. I. K. Marsilla
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - S. Shanmugan
- School of Physics, Universiti Sains Malaysia (USM), Minden, Malaysia
| | - A. A. Azlan
- School of Physics, Universiti Sains Malaysia (USM), Minden, Malaysia
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Wibowo A, Tajalla GUN, Marsudi MA, Cooper G, Asri LA, Liu F, Ardy H, Bartolo PJ. Green Synthesis of Silver Nanoparticles Using Extract of Cilembu Sweet Potatoes ( Ipomoea batatas L var. Rancing) as Potential Filler for 3D Printed Electroactive and Anti-Infection Scaffolds. Molecules 2021; 26:molecules26072042. [PMID: 33918502 PMCID: PMC8038213 DOI: 10.3390/molecules26072042] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 03/30/2021] [Accepted: 03/31/2021] [Indexed: 02/07/2023] Open
Abstract
Electroactive biomaterials are fascinating for tissue engineering applications because of their ability to deliver electrical stimulation directly to cells, tissue, and organs. One particularly attractive conductive filler for electroactive biomaterials is silver nanoparticles (AgNPs) because of their high conductivity, antibacterial activity, and ability to promote bone healing. However, production of AgNPs involves a toxic reducing agent which would inhibit biological scaffold performance. This work explores facile and green synthesis of AgNPs using extract of Cilembu sweet potato and studies the effect of baking and precursor concentrations (1, 10 and 100 mM) on AgNPs’ properties. Transmission electron microscope (TEM) results revealed that the smallest particle size of AgNPs (9.95 ± 3.69 nm) with nodular morphology was obtained by utilization of baked extract and ten mM AgNO3. Polycaprolactone (PCL)/AgNPs scaffolds exhibited several enhancements compared to PCL scaffolds. Compressive strength was six times greater (3.88 ± 0.42 MPa), more hydrophilic (contact angle of 76.8 ± 1.7°), conductive (2.3 ± 0.5 × 10−3 S/cm) and exhibited anti-bacterial properties against Staphylococcus aureus ATCC3658 (99.5% reduction of surviving bacteria). Despite the promising results, further investigation on biological assessment is required to obtain comprehensive study of this scaffold. This green synthesis approach together with the use of 3D printing opens a new route to manufacture AgNPs-based electroactive with improved anti-bacterial properties without utilization of any toxic organic solvents.
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Affiliation(s)
- Arie Wibowo
- Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia; (G.U.N.T.); (M.A.M.); (L.A.T.W.A.); (H.A.)
- Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia
- Correspondence: (A.W.); (G.C.); (P.J.D.S.B.)
| | - Gusti U. N. Tajalla
- Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia; (G.U.N.T.); (M.A.M.); (L.A.T.W.A.); (H.A.)
- Materials and Metallurgy Engineering, Institut Teknologi Kalimantan, Jl. Soekarno Hatta 15, Balikpapan 76127, Indonesia
| | - Maradhana A. Marsudi
- Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia; (G.U.N.T.); (M.A.M.); (L.A.T.W.A.); (H.A.)
| | - Glen Cooper
- Department of Mechanical, Aerospace, and Civil Engineering, University of Manchester, Manchester M13 9PL, UK;
- Correspondence: (A.W.); (G.C.); (P.J.D.S.B.)
| | - Lia A.T.W. Asri
- Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia; (G.U.N.T.); (M.A.M.); (L.A.T.W.A.); (H.A.)
| | - Fengyuan Liu
- Department of Mechanical, Aerospace, and Civil Engineering, University of Manchester, Manchester M13 9PL, UK;
| | - Husaini Ardy
- Material Science and Engineering Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132, Indonesia; (G.U.N.T.); (M.A.M.); (L.A.T.W.A.); (H.A.)
| | - Paulo J.D.S. Bartolo
- Department of Mechanical, Aerospace, and Civil Engineering, University of Manchester, Manchester M13 9PL, UK;
- Correspondence: (A.W.); (G.C.); (P.J.D.S.B.)
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Liao C, Li Y, Tjong SC. Polyetheretherketone and Its Composites for Bone Replacement and Regeneration. Polymers (Basel) 2020; 12:E2858. [PMID: 33260490 PMCID: PMC7760052 DOI: 10.3390/polym12122858] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 07/23/2020] [Accepted: 07/25/2020] [Indexed: 12/18/2022] Open
Abstract
In this article, recent advances in the development, preparation, biocompatibility and mechanical properties of polyetheretherketone (PEEK) and its composites for hard and soft tissue engineering are reviewed. PEEK has been widely employed for fabricating spinal fusions due to its radiolucency, chemical stability and superior sterilization resistance at high temperatures. PEEK can also be tailored into patient-specific implants for treating orbital and craniofacial defects in combination with additive manufacturing process. However, PEEK is bioinert, lacking osseointegration after implantation. Accordingly, several approaches including surface roughening, thin film coating technology, and addition of bioactive hydroxyapatite (HA) micro-/nanofillers have been adopted to improve osseointegration performance. The elastic modulus of PEEK is 3.7-4.0 GPa, being considerably lower than that of human cortical bone ranging from 7-30 GPa. Thus, PEEK is not stiff enough to sustain applied stress in load-bearing orthopedic implants. Therefore, HA micro-/nanofillers, continuous and discontinuous carbon fibers are incorporated into PEEK for enhancing its stiffness for load-bearing applications. Among these, carbon fibers are more effective than HA micro-/nanofillers in providing additional stiffness and load-bearing capabilities. In particular, the tensile properties of PEEK composite with 30wt% short carbon fibers resemble those of cortical bone. Hydrophobic PEEK shows no degradation behavior, thus hampering its use for making porous bone scaffolds. PEEK can be blended with hydrophilic polymers such as polyglycolic acid and polyvinyl alcohol to produce biodegradable scaffolds for bone tissue engineering applications.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
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Vishnu Chandar J, Mutharasu D, Mohamed K, Marsilla KIK, Shanmugan S, Azlan AA. Melt compounded polylactic acid-hexagonal boron nitride-aluminum oxide hybrid composites for electronic applications: impact of hybrid fillers on thermophysical, dielectric, optical, and hardness properties. POLYM-PLAST TECH MAT 2020. [DOI: 10.1080/25740881.2020.1793192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- J. Vishnu Chandar
- School of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - D. Mutharasu
- MCoE, PTDI-Solid State Drive (SSD), Western Digital Corporation, Sebarang Perai Selatan, Malaysia
| | - K. Mohamed
- School of Mechanical Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - K. I. K. Marsilla
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia (USM), Nibong Tebal, Malaysia
| | - S. Shanmugan
- School of Physics, Universiti Sains Malaysia (USM), Minden, Malaysia
| | - A. A. Azlan
- School of Physics, Universiti Sains Malaysia (USM), Minden, Malaysia
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Development of Bionanocomposites Based on PLA, Collagen and AgNPs and Characterization of Their Stability and In Vitro Biocompatibility. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10072265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Bionanocomposites including poly(lactic acid) (PLA), collagen, and silver nanoparticles (AgNPs) were prepared as biocompatible and stable films. Thermal properties of the PLA-based bionanocomposites indicated an increase in the crystallinity of PLA plasticized due to a small quantity of AgNPs. The results on the stability study indicate the promising contribution of the AgNPs on the durability of PLA-based bionanocomposites. In vitro biocompatibility conducted on the mouse fibroblast cell line NCTC, clone 929, using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay showed high values of cell viability (>80%) after cell cultivation in the presence of bionanocomposite formulations for 48 h, while the percentages of lactate dehydrogenase (LDH) released in the culture medium were reduced (<15%), indicating no damages of the cell membranes. In addition, cell cycle analysis assessed by flow cytometry indicated that all tested bionanocomposites did not affect cell proliferation and maintained the normal growth rate of cells. The obtained results recommend the potential use of PLA-based bionanocomposites for biomedical coatings.
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10
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Pandele AM, Constantinescu A, Radu IC, Miculescu F, Ioan Voicu S, Ciocan LT. Synthesis and Characterization of PLA-Micro-structured Hydroxyapatite Composite Films. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E274. [PMID: 31936228 PMCID: PMC7014116 DOI: 10.3390/ma13020274] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/20/2019] [Accepted: 12/23/2019] [Indexed: 01/30/2023]
Abstract
This article presents a facile synthesis method used to obtain new composite films based on polylactic acid and micro-structured hydroxyapatite particles. The composite films were synthesized starting from a polymeric solution in chloroform (12 wt.%) in which various concentrations of hydroxyapatite (1, 2, and 4 wt.% related to polymer) were homogenously dispersed using ultrasonication followed by solvent evaporation. The synthesized composite films were morphologically (through SEM and atomic force microscopy (AFM)) and structurally (through FT-IR and Raman spectroscopy) characterized. The thermal behavior of the composite films was also determined. The SEM and AFM analyses showed the presence of micro-structured hydroxyapatite particles in the film's structure, as well as changes in the surface morphology. There was a significant decrease in the crystallinity of the composite films compared to the pure polymer, this being explained by a decrease in the arrangement of the polymer chains and a concurrent increase in the degree of their clutter. The presence of hydroxyapatite crystals did not have a significant influence on the degradation temperature of the composite film.
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Affiliation(s)
- Andreea Madalina Pandele
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gheorghe Polizu 1-7, 011061 Bucharest, Romania
| | - Andreea Constantinescu
- Faculty of Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, 011061 Bucharest, Romania; (A.C.); (F.M.)
| | - Ionut Cristian Radu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
| | - Florin Miculescu
- Faculty of Materials Science, University Politehnica of Bucharest, Splaiul Independentei 313, 011061 Bucharest, Romania; (A.C.); (F.M.)
| | - Stefan Ioan Voicu
- Advanced Polymer Materials Group, Faculty of Applied Chemistry and Material Science, University Polytehnica of Bucharest, str. Gheorghe Polizu 1-7, 011061 Bucharest, Romania; (A.M.P.); (I.C.R.)
- Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, Gheorghe Polizu 1-7, 011061 Bucharest, Romania
| | - Lucian Toma Ciocan
- “Carol Davila” University of Medicine and Pharmacy, Prosthetics Technology and Dental Materials Department, 37, Dionisie Lupu Street, District 1, 020022 Bucharest, Romania;
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11
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Zhou Q, Wang T, Wang C, Wang Z, Yang Y, Li P, Cai R, Sun M, Yuan H, Nie L. Synthesis and characterization of silver nanoparticles-doped hydroxyapatite/alginate microparticles with promising cytocompatibility and antibacterial properties. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2019.124081] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Frone AN, Batalu D, Chiulan I, Oprea M, Gabor AR, Nicolae CA, Raditoiu V, Trusca R, Panaitescu DM. Morpho-Structural, Thermal and Mechanical Properties of PLA/PHB/Cellulose Biodegradable Nanocomposites Obtained by Compression Molding, Extrusion, and 3D Printing. NANOMATERIALS 2019; 10:nano10010051. [PMID: 31878292 PMCID: PMC7023130 DOI: 10.3390/nano10010051] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 12/14/2019] [Accepted: 12/20/2019] [Indexed: 01/26/2023]
Abstract
Biodegradable blends and nanocomposites were produced from polylactic acid (PLA), poly(3-hydroxybutyrate) (PHB) and cellulose nanocrystals (NC) by a single step reactive blending process using dicumyl peroxide (DCP) as a cross-linking agent. With the aim of gaining more insight into the impact of processing methods upon the morphological, thermal and mechanical properties of these nanocomposites, three different processing techniques were employed: compression molding, extrusion, and 3D printing. The addition of DCP improved interfacial adhesion and the dispersion of NC in nanocomposites as observed by scanning electron microscopy and atomic force microscopy. The carbonyl index calculated from Fourier transform infrared spectroscopy showed increased crystallinity after DCP addition in PLA/PHB and PLA/PHB/NC, also confirmed by differential scanning calorimetry analyses. NC and DCP showed nucleating activity and favored the crystallization of PLA, increasing its crystallinity from 16% in PLA/PHB to 38% in DCP crosslinked blend and to 43% in crosslinked PLA/PHB/NC nanocomposite. The addition of DCP also influenced the melting-recrystallization processes due to the generation of lower molecular weight products with increased mobility. The thermo-mechanical characterization of uncross-linked and cross-linked PLA/PHB blends and nanocomposites showed the influence of the processing technique. Higher storage modulus values were obtained for filaments obtained by extrusion and 3D printed meshes compared to compression molded films. Similarly, the thermogravimetric analysis showed an increase of the onset degradation temperature, even with more than 10 °C for PLA/PHB blends and nanocomposites after extrusion and 3D-printing, compared with compression molding. This study shows that PLA/PHB products with enhanced interfacial adhesion, improved thermal stability, and mechanical properties can be obtained by the right choice of the processing method and conditions using NC and DCP for balancing the properties.
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Affiliation(s)
- Adriana Nicoleta Frone
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
- Correspondence: ; Tel.: +40-21316-3068
| | - Dan Batalu
- Materials Science and Engineering Faculty, University Politehnica of Bucharest, 060042 Bucharest, Romania;
| | - Ioana Chiulan
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
| | - Madalina Oprea
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
| | - Augusta Raluca Gabor
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
| | - Cristian-Andi Nicolae
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
| | - Valentin Raditoiu
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
| | - Roxana Trusca
- Science and Engineering of Oxide Materials and Nanomaterials, University Politehnica of Bucharest, 1-7 Gh. Polizu Street, 011061 Bucharest, Romania;
| | - Denis Mihaela Panaitescu
- Polymer Department, National Institute for Research & Development in Chemistry and Petrochemistry ICECHIM, 202 Splaiul Independentei, 060021 Bucharest, Romania; (I.C.); (M.O.); (A.R.G.); (C.-A.N.); (V.R.); (D.M.P.)
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Liao C, Li Y, Tjong SC. Antibacterial Activities of Aliphatic Polyester Nanocomposites with Silver Nanoparticles and/or Graphene Oxide Sheets. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1102. [PMID: 31374855 PMCID: PMC6724040 DOI: 10.3390/nano9081102] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 07/21/2019] [Accepted: 07/25/2019] [Indexed: 12/18/2022]
Abstract
Aliphatic polyesters such as poly(lactic acid) (PLA), polycaprolactone (PCL) and poly(lactic-co-glycolic) acid (PLGA) copolymers have been widely used as biomaterials for tissue engineering applications including: bone fixation devices, bone scaffolds, and wound dressings in orthopedics. However, biodegradable aliphatic polyesters are prone to bacterial infections due to the lack of antibacterial moieties in their macromolecular chains. In this respect, silver nanoparticles (AgNPs), graphene oxide (GO) sheets and AgNPs-GO hybrids can be used as reinforcing nanofillers for aliphatic polyesters in forming antimicrobial nanocomposites. However, polymeric matrix materials immobilize nanofillers to a large extent so that they cannot penetrate bacterial membrane into cytoplasm as in the case of colloidal nanoparticles or nanosheets. Accordingly, loaded GO sheets of aliphatic polyester nanocomposites have lost their antibacterial functions such as nanoknife cutting, blanket wrapping and membrane phospholipid extraction. In contrast, AgNPs fillers of polyester nanocomposites can release silver ions for destroying bacterial cells. Thus, AgNPs fillers are more effective than loaded GO sheets of polyester nanocomposiites in inhibiting bacterial infections. Aliphatic polyester nanocomposites with AgNPs and AgNPs-GO fillers are effective to kill multi-drug resistant bacteria that cause medical device-related infections.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong 999077, China.
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14
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Li Y, Liao C, Tjong SC. Synthetic Biodegradable Aliphatic Polyester Nanocomposites Reinforced with Nanohydroxyapatite and/or Graphene Oxide for Bone Tissue Engineering Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E590. [PMID: 30974820 PMCID: PMC6523566 DOI: 10.3390/nano9040590] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/22/2019] [Accepted: 04/03/2019] [Indexed: 12/27/2022]
Abstract
This paper provides review updates on the current development of bionanocomposites with polymeric matrices consisting of synthetic biodegradable aliphatic polyesters reinforced with nanohydroxyaptite (nHA) and/or graphene oxide (GO) nanofillers for bone tissue engineering applications. Biodegradable aliphatic polyesters include poly(lactic acid) (PLA), polycaprolactone (PCL) and copolymers of PLA-PGA (PLGA). Those bionanocomposites have been explored for making 3D porous scaffolds for the repair of bone defects since nHA and GO enhance their bioactivity and biocompatibility by promoting biomineralization, bone cell adhesion, proliferation and differentiation, thus facilitating new bone tissue formation upon implantation. The incorporation of nHA or GO into aliphatic polyester scaffolds also improves their mechanical strength greatly, especially hybrid GO/nHA nanofilllers. Those mechanically strong nanocomposite scaffolds can support and promote cell attachment for tissue growth. Porous scaffolds fabricated from conventional porogen leaching, and thermally induced phase separation have many drawbacks inducing the use of organic solvents, poor control of pore shape and pore interconnectivity, while electrospinning mats exhibit small pores that limit cell infiltration and tissue ingrowth. Recent advancement of 3D additive manufacturing allows the production of aliphatic polyester nanocomposite scaffolds with precisely controlled pore geometries and large pores for the cell attachment, growth, and differentiation in vitro, and the new bone formation in vivo.
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Affiliation(s)
- Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252059, China.
| | - Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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15
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Liao C, Li Y, Tjong SC. Bactericidal and Cytotoxic Properties of Silver Nanoparticles. Int J Mol Sci 2019; 20:E449. [PMID: 30669621 PMCID: PMC6359645 DOI: 10.3390/ijms20020449] [Citation(s) in RCA: 425] [Impact Index Per Article: 85.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 12/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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16
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Zhong L, Qu Y, Shi K, Chu B, Lei M, Huang K, Gu Y, Qian Z. Biomineralized polymer matrix composites for bone tissue repair: a review. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9324-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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17
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Preparation of hydroxylated lecithin complexed iodine/carboxymethyl chitosan/sodium alginate composite membrane by microwave drying and its applications in infected burn wound treatment. Carbohydr Polym 2018; 206:435-445. [PMID: 30553343 DOI: 10.1016/j.carbpol.2018.10.068] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2018] [Revised: 09/04/2018] [Accepted: 10/22/2018] [Indexed: 02/07/2023]
Abstract
Improving the antibacterial properties of membrane wound dressings of natural polymers is crucial. Iodine is an important safe inorganic antibacterial agent, but was confined in the composition with polymer membranes due to the challenges of homogeneity and stability during drying. In the present work, iodine was complexed with hydroxylated lecithin (HL) to improve its stability and complexing efficiency for the composition with carboxymethly chitosan/sodium alginate. With the aid of microwave drying, hydroxylated lecithin complexed iodine/carboxymethly chitosan/sodium alginate (HLI/CMCS/SA) composite membranes with homogeneously distributions of HLI, high contents of activated iodine, good mechanical and swelling properties, proper water vapor permeability, pH controllable iodine release and excellent antibacterial properties were prepared. The composite membranes exhibited high repairing efficiencies for the infection of a rat model of the seawater immersed wound infection of deep partial-thickness burns. This novel antibacterial composite membrane can be potentially used as a high performance wound dressing for treating and repairing open trauma infections.
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18
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Lizundia E, Mateos P, Vilas JL. Tuneable hydrolytic degradation of poly(l-lactide) scaffolds triggered by ZnO nanoparticles. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:714-720. [PMID: 28415520 DOI: 10.1016/j.msec.2017.02.104] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/14/2016] [Accepted: 02/21/2017] [Indexed: 12/01/2022]
Abstract
In this work we fabricate porous PLLA and PLLA/ZnO scaffolds with porosities ranging from 10 to 90% and average pore diameter of 125-250μm by solvent casting/particulate leaching method. The structural evolution of PLLA/ZnO scaffolds during their in vitro degradation in phosphate buffered saline (PBS) at physiological pH (7.4) has been studied as a function of porosity and obtained results were compared to plain PLLA scaffolds. The changes induced upon the hydrolytic degradation of scaffolds have been explored by measuring the pH changes of the medium, the mass loss, thermal transitions, crystalline structure, thermal stability and the morphological changes. It is shown that the degradation profile of scaffolds could be successfully modified by tuning both the amount of ZnO nanoparticles and by varying the scaffold porosity. Results reveal that the water dissociated on ZnO nanoparticle surfaces initiate hydrolytic degradation reactions by reducing the strength of the chemical bonds of the adjacent PLLA chains, causing them to further divide into water-soluble oligomers. Obtained results may be useful towards the development of antibacterial porous structures with tuneable degradation rates to be used as a substrate for the growth of different kind of cells and tissues.
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Affiliation(s)
- Erlantz Lizundia
- Dept. of Graphic Design and Engineering Projects, Bilbao Faculty of Engineering, University of the Basque Country (UPV/EHU), Spain; Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain.
| | - Paula Mateos
- Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
| | - José Luis Vilas
- Macromolecular Chemistry Research Group (LABQUIMAC), Dept. of Physical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Spain
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19
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Augustine R, Nethi SK, Kalarikkal N, Thomas S, Patra CR. Electrospun polycaprolactone (PCL) scaffolds embedded with europium hydroxide nanorods (EHNs) with enhanced vascularization and cell proliferation for tissue engineering applications. J Mater Chem B 2017; 5:4660-4672. [DOI: 10.1039/c7tb00518k] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PCL-EHNs scaffolds enhance endothelial cell proliferation, adhesion and blood vessel formation in a VEGFR2/Akt dependent signaling cascade.
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Affiliation(s)
- Robin Augustine
- School of Nano Science and Technology
- National Institute of Technology Calicut
- Kozhikode
- India
| | - Susheel Kumar Nethi
- Department of Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad – 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Nandakumar Kalarikkal
- International and Inter University Centre for Nanoscience and Nanotechnology
- Mahatma Gandhi University
- Kottayam – 686 560
- India
- School of Pure and Applied Physics
| | - Sabu Thomas
- International and Inter University Centre for Nanoscience and Nanotechnology
- Mahatma Gandhi University
- Kottayam – 686 560
- India
- School of Chemical Sciences
| | - Chitta Ranjan Patra
- Department of Chemical Biology
- CSIR-Indian Institute of Chemical Technology
- Hyderabad – 500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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20
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Yu B, Wang M, Sun H, Zhu F, Han J, Bhat G. Preparation and properties of poly (lactic acid)/magnetic Fe3O4 composites and nonwovens. RSC Adv 2017. [DOI: 10.1039/c7ra06427f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The degradable and magnetic PLA/Fe3O4 melt-blown materials for air filtration application were prepared by melt-blowing process using the PLA/Fe3O4 composites with different components obtained by melt-mixing as the masterbatch.
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Affiliation(s)
- Bin Yu
- The Key Laboratory of Industrial Textile Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- School of Materials and Textiles
| | - Mingjun Wang
- The Key Laboratory of Industrial Textile Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- School of Materials and Textiles
| | - Hui Sun
- The Key Laboratory of Industrial Textile Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- School of Materials and Textiles
| | - Feichao Zhu
- The Key Laboratory of Industrial Textile Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- School of Materials and Textiles
| | - Jian Han
- The Key Laboratory of Industrial Textile Materials and Manufacturing Technology
- Zhejiang Sci-Tech University
- Hangzhou
- China
- School of Materials and Textiles
| | - Gajanan Bhat
- Department of Textiles
- Merchandising & Interiors
- University of Georgia
- Athens
- USA
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21
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Díez-Pascual AM, Díez-Vicente AL. Multifunctional poly(glycolic acid-co-propylene fumarate) electrospun fibers reinforced with graphene oxide and hydroxyapatite nanorods. J Mater Chem B 2017; 5:4084-4096. [DOI: 10.1039/c7tb00497d] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Biocompatible and biodegradable PGA-co-PPF/HA/GO hybrid nanocomposite fibers with high stiffness and good bactericidal activity have been developed for soft tissue engineering.
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Affiliation(s)
- Ana M. Díez-Pascual
- Analytical Chemistry
- Physical Chemistry and Chemical Engineering Department
- Faculty of Biology
- Environmental Sciences and Chemistry
- Alcalá University
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22
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Stoleru E, Munteanu BS, Darie-Niţă RN, Pricope GM, Lungu M, Irimia A, Râpă M, Lipşa RD, Vasile C. Complex poly(lactic acid)-based biomaterial for urinary catheters: II. Biocompatibility. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2016. [DOI: 10.1680/jbibn.15.00012] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The present paper is focused on the surface and bulk characterization of poly(lactic acid) (PLA)-based composites that contain hydrolyzed collagen as a biological polymer, silver nanoparticles and vitamin E and epoxidized soybean oil as a plasticizer. The bionanocomposites were obtained by melt processing and evaluated for structural and surface characteristics, biocompatibility, functional properties such as antimicrobial and antioxidant activity and hydrolytic degradation behavior. It has been established that the optimal composition to impart functional properties to the PLA matrix is a formulation containing 15% epoxidized soybean oil, 15% hydrolyzed collagen, 5% Pluronic, 5% vitamin E and 0·3% silver nanoparticles. This bionanocomposite inhibits the growth of both Gram-positive bacteria, Escherichia coli and Salmonella typhimurium, and Gram-negative bacteria, Listeria monocytogenes, and reaches 100% radical-scavenging activity. The PLA-based biomaterials obtained in this study are stable in biological media in the short and medium terms and therefore are recommended as multifunctional biomaterials for the manufacture of medical devices, such as urinary catheters.
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Affiliation(s)
- Elena Stoleru
- ‘Petru Poni’ Institute of Macromolecular Chemistry, Iași, Romania
| | | | | | - Gina M. Pricope
- Veterinary and the Food Safety Laboratory, Food Safety Department, Iași, Romania
| | - Maria Lungu
- National Institute for Biological Sciences, Bucharest, Romania
| | - Anamaria Irimia
- ‘Petru Poni’ Institute of Macromolecular Chemistry, Iași, Romania
| | - Maria Râpă
- S.C. ICPE BISTRITA S.A., Bistrița, Romania
| | - Rodica D. Lipşa
- ‘Petru Poni’ Institute of Macromolecular Chemistry, Iași, Romania
| | - Cornelia Vasile
- Petru Poni Institute of Macromolecular Chemistry, Iași, Romania
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23
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Chen Y, Yang Y, Liao Q, Yang W, Ma W, Zhao J, Zheng X, Yang Y, Chen R. Preparation, property of the complex of carboxymethyl chitosan grafted copolymer with iodine and application of it in cervical antibacterial biomembrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 67:247-258. [DOI: 10.1016/j.msec.2016.05.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Revised: 04/16/2016] [Accepted: 05/03/2016] [Indexed: 11/24/2022]
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Liu C, Wong HM, Yeung KWK, Tjong SC. Novel Electrospun Polylactic Acid Nanocomposite Fiber Mats with Hybrid Graphene Oxide and Nanohydroxyapatite Reinforcements Having Enhanced Biocompatibility. Polymers (Basel) 2016; 8:E287. [PMID: 30974562 PMCID: PMC6432366 DOI: 10.3390/polym8080287] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Revised: 07/28/2016] [Accepted: 08/03/2016] [Indexed: 01/15/2023] Open
Abstract
Graphene oxide (GO) and a nanohydroxyapatite rod (nHA) of good biocompatibility were incorporated into polylactic acid (PLA) through electrospinning to form nanocomposite fiber scaffolds for bone tissue engineering applications. The preparation, morphological, mechanical and thermal properties, as well as biocompatibility of electrospun PLA scaffolds reinforced with GO and/or nHA were investigated. Electron microscopic examination and image analysis showed that GO and nHA nanofillers refine the diameter of electrospun PLA fibers. Differential scanning calorimetric tests showed that nHA facilitates the crystallization process of PLA, thereby acting as a nucleating site for the PLA molecules. Tensile test results indicated that the tensile strength and elastic modulus of the electrospun PLA mat can be increased by adding 15 wt % nHA. The hybrid nanocomposite scaffold with 15 wt % nHA and 1 wt % GO fillers exhibited higher tensile strength amongst the specimens investigated. Furthermore, nHA and GO nanofillers enhanced the water uptake of PLA. Cell cultivation, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and alkaline phosphatase tests demonstrated that all of the nanocomposite scaffolds exhibit higher biocompatibility than the pure PLA mat, particularly for the scaffold with 15 wt % nHA and 1 wt % GO. Therefore, the novel electrospun PLA nanocomposite scaffold with 15 wt % nHA and 1 wt % GO possessing a high tensile strength and modulus, as well as excellent cell proliferation is a potential biomaterial for bone tissue engineering applications.
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Affiliation(s)
- Chen Liu
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
| | - Hoi Man Wong
- Department of Orthopedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Kelvin Wai Kwok Yeung
- Department of Orthopedics and Traumatology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China.
| | - Sie Chin Tjong
- Department of Physics and Materials Science, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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25
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Liu Z, Chen Y, Ding W. Preparation, dynamic rheological behavior, crystallization, and mechanical properties of inorganic whiskers reinforced polylactic acid/hydroxyapatite nanocomposites. J Appl Polym Sci 2016. [DOI: 10.1002/app.43381] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhuo Liu
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Yinghong Chen
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University; Chengdu 610065 China
| | - Weiwei Ding
- State Key Laboratory of Polymer Materials Engineering (Sichuan University), Polymer Research Institute of Sichuan University; Chengdu 610065 China
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26
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Zhu S, Sun H, Geng H, Liu D, Zhang X, Cai Q, Yang X. Dual functional polylactide–hydroxyapatite nanocomposites for bone regeneration with nano-silver being loaded via reductive polydopamine. RSC Adv 2016. [DOI: 10.1039/c6ra12100d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In bone tissue engineering, scaffolding materials with antibacterial function are required to avoid failure in treating infected bone defects, and poly(l-lactide) - hydroxyapatite nanocomposites containing silver nanoparticles are good choices for the purpose.
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Affiliation(s)
- Siqi Zhu
- State Key Laboratory of Organic-Inorganic Composites
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Hongyang Sun
- State Key Laboratory of Organic-Inorganic Composites
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Hongjuan Geng
- School and Hospital of Stomatology
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Deping Liu
- Department of Cardiology
- Beijing Hospital
- Beijing 100730
- P. R. China
| | - Xu Zhang
- School and Hospital of Stomatology
- Tianjin Medical University
- Tianjin 300070
- P. R. China
| | - Qing Cai
- State Key Laboratory of Organic-Inorganic Composites
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
| | - Xiaoping Yang
- State Key Laboratory of Organic-Inorganic Composites
- Beijing Laboratory of Biomedical Materials
- Beijing University of Chemical Technology
- Beijing 100029
- P. R. China
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27
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Shi D, Zhang L, Shen J, Li X, Chen M, Akashi M. Fabrication of rod-like nanocapsules based on polylactide and 3,4-dihydroxyphenylalanine for a drug delivery system. RSC Adv 2015. [DOI: 10.1039/c5ra21549h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Rod-like nanocapsules were facilely fabricated based on a bio-based polymer via DOPA adhesion. The nanocapsules showed high drug-loading efficacies and controlled drug release depending on different pH buffer solutions.
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Affiliation(s)
- Dongjian Shi
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Lei Zhang
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Jiali Shen
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Xiaojie Li
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Mingqing Chen
- The Key Laboratory of Food Colloids and Biotechnology Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
- P. R. China
| | - Mitsuru Akashi
- Department of Applied Chemistry
- Graduate School of Engineering
- Osaka University
- Suita 565-0871
- Japan
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