1
|
Tian G, Wang J. Biodegradable photo-crosslinked polycaprolactone/polydopamine elastomers with excellent light driven programmable shape memory and chemical degradation properties. Int J Biol Macromol 2024; 264:129768. [PMID: 38296130 DOI: 10.1016/j.ijbiomac.2024.129768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/07/2024] [Accepted: 01/24/2024] [Indexed: 03/10/2024]
Abstract
Fabrication of biodegradable shape memory polymer with remotely controllable shape actuation is of great significance in the biomedical field but remains challenging. Herein, we present a simple strategy to fabricate a monolayer-based stretchable and mechanically robust polycaprolactone/polydopamine elastomer via efficient thiol-ene click chemistry. The resultant elastomers exhibit desirable photothermal transfer efficiency and can enable rapid temperature increase over the melting temperature of polymeric matrix, and quantitative results demonstrate that the crosslinked film exhibited excellent shape memory properties with shape fixity (Rf) and shape recovery ratios (Rr) approaching 92.3 % and 95.6 %, respectively. Combined with photo stimuli, anisotropic polymer chain relaxation of the prestretched film can generate asymmetric contractions and eventually give rise to ut out-of-plane bending actuations upon photo stimulation, meanwhile, numerical simulation reveals the interaction mechanism of light with film. Beyond this, we further demonstrate that the bending angle is correlated with the parameters of prestretch strain, film thickness as well as irradiation time, and the maximum value can reach 158° with prestretch strain of 200 % and film thickness of 0.3 mm. In particular, the bent structures could be reversibly deformed into plane state via photo-directed corresponding opposite surfaces. Remarkably, the in vitro degradation properties of the elastomers on PBS-T buffer solutions demonstrated that the degradation was composed of induction stage and acceleration stage. This work will pave way for designing biodegradable light-induced shape memory materials toward biomedical device fields and so on.
Collapse
Affiliation(s)
- Guangming Tian
- Department of Polymer Materials and Engineering, School of Materials and Engineering, Xi'an Polytechnic University, Xi'an, 710048, PR China
| | - Jingxia Wang
- CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, China.
| |
Collapse
|
2
|
Ibebunjo K, Tella S, Kiljunen S, Repo E. Shape Memory Respirator Mask for Airborne Viruses. Polymers (Basel) 2023; 15:polym15081859. [PMID: 37112005 PMCID: PMC10145067 DOI: 10.3390/polym15081859] [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: 02/13/2023] [Revised: 03/25/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
The emergence of COVID-19 has spurred demand for facemasks and prompted many studies aiming to develop masks that provide maximum protection. Filtration capacity and fit define the level of protection a mask can provide, and the fit is in large part determined by face shape and size. Due to differences in face dimensions and shapes, a mask of one size will not be likely to fit all faces. In this work, we examined shape memory polymers (SMPs) for producing facemasks that are able to alter their shape and size to fit every face. Polymer blends with and without additives or compatibilizers were melt-extruded, and their morphology, melting and crystallization behavior, mechanical properties, and shape memory (SM) behavior were characterized. All the blends had phase-separated morphology. The mechanical properties of the SMPs were modified by altering the content of polymers and compatibilizers or additives in the blends. The reversible and fixing phases are determined by the melting transitions. SM behavior is caused by physical interaction at the interface between the two phases in the blend and the crystallization of the reversible phase. The optimal SM blend and printing material for the mask was determined to be a polylactic acid (PLA)/polycaprolactone (PCL) blend with 30% PCL. A 3D-printed respirator mask was manufactured and fitted to several faces after being thermally activated at 65°C. The mask had excellent SM and could be molded and remolded to fit a variety of facial shapes and sizes. The mask also exhibited self-healing and healed from surface scratches.
Collapse
Affiliation(s)
- Kosisochi Ibebunjo
- Department of Separation Science, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
| | - Susanna Tella
- Faculty of Health Care and Social Services, LAB University of Applied Sciences, FI-53850 Lappeenranta, Finland
| | - Samantha Kiljunen
- Department of Separation Science, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
| | - Eveliina Repo
- Department of Separation Science, School of Engineering Science, LUT University, FI-53850 Lappeenranta, Finland
| |
Collapse
|
3
|
Bikiaris ND, Koumentakou I, Samiotaki C, Meimaroglou D, Varytimidou D, Karatza A, Kalantzis Z, Roussou M, Bikiaris RD, Papageorgiou GZ. Recent Advances in the Investigation of Poly(lactic acid) (PLA) Nanocomposites: Incorporation of Various Nanofillers and their Properties and Applications. Polymers (Basel) 2023; 15:polym15051196. [PMID: 36904437 PMCID: PMC10007491 DOI: 10.3390/polym15051196] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 02/23/2023] [Accepted: 02/24/2023] [Indexed: 03/08/2023] Open
Abstract
Poly(lactic acid) (PLA) is considered the most promising biobased substitute for fossil-derived polymers due to its compostability, biocompatibility, renewability, and good thermomechanical properties. However, PLA suffers from several shortcomings, such as low heat distortion temperature, thermal resistance, and rate of crystallization, whereas some other specific properties, i.e., flame retardancy, anti-UV, antibacterial or barrier properties, antistatic to conductive electrical characteristics, etc., are required by different end-use sectors. The addition of different nanofillers represents an attractive way to develop and enhance the properties of neat PLA. Numerous nanofillers with different architectures and properties have been investigated, with satisfactory achievements, in the design of PLA nanocomposites. This review paper overviews the current advances in the synthetic routes of PLA nanocomposites, the imparted properties of each nano-additive, as well as the numerous applications of PLA nanocomposites in various industrial fields.
Collapse
Affiliation(s)
- Nikolaos D. Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Ioanna Koumentakou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Christina Samiotaki
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Despoina Meimaroglou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Despoina Varytimidou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Anastasia Karatza
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Zisimos Kalantzis
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Magdalini Roussou
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Rizos D. Bikiaris
- Laboratory of Polymer Chemistry and Technology, Department of Chemistry, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - George Z. Papageorgiou
- Department of Chemistry, University of Ioannina, P.O. Box 1186, GR-45110 Ioannina, Greece
- Correspondence:
| |
Collapse
|
4
|
Bianchi M, Dorigato A, Morreale M, Pegoretti A. Evaluation of the Physical and Shape Memory Properties of Fully Biodegradable Poly(lactic acid) (PLA)/Poly(butylene adipate terephthalate) (PBAT) Blends. Polymers (Basel) 2023; 15:polym15040881. [PMID: 36850164 PMCID: PMC9963890 DOI: 10.3390/polym15040881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/31/2023] [Accepted: 02/02/2023] [Indexed: 02/12/2023] Open
Abstract
Biodegradable polymers have recently become popular; in particular, blends of poly(lactic acid) (PLA) and poly(butylene adipate terephthalate) (PBAT) have recently attracted significant attention due to their potential application in the packaging field. However, there is little information about the thermomechanical properties of these blends and especially the effect induced by the addition of PBAT on the shape memory properties of PLA. This work, therefore, aims at producing and investigating the microstructural, thermomechanical and shape memory properties of PLA/PBAT blends prepared by melt compounding. More specifically, PLA and PBAT were melt-blended in a wide range of relative concentrations (from 85/15 to 25/75 wt%). A microstructural investigation was carried out, evidencing the immiscibility and the low interfacial adhesion between the PLA and PBAT phases. The immiscibility was also confirmed by differential scanning calorimetry (DSC). A thermogravimetric analysis (TGA) revealed that the addition of PBAT slightly improved the thermal stability of PLA. The stiffness and strength of the blends decreased with the PBAT amount, while the elongation at break remained comparable to that of neat PLA up to a PBAT content of 45 wt%, while a significant increment in ductility was observed only for higher PBAT concentrations. The shape memory performance of PLA was impaired by the addition of PBAT, probably due to the low interfacial adhesion observed in the blends. These results constitute a basis for future research on these innovative biodegradable polymer blends, and their physical properties might be further enhanced by adding suitable compatibilizers.
Collapse
Affiliation(s)
- Marica Bianchi
- Department of Industrial Engineering and INSTM Research Unit, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| | - Andrea Dorigato
- Department of Industrial Engineering and INSTM Research Unit, University of Trento, Via Sommarive 9, 38123 Trento, Italy
- Correspondence: (A.D.); (M.M.)
| | - Marco Morreale
- Faculty of Engineering and Architecture, Kore University of Enna, Cittadella Universitaria, 94100 Enna, Italy
- Correspondence: (A.D.); (M.M.)
| | - Alessandro Pegoretti
- Department of Industrial Engineering and INSTM Research Unit, University of Trento, Via Sommarive 9, 38123 Trento, Italy
| |
Collapse
|
5
|
Ramezani Dana H, Ebrahimi F. Synthesis, properties, and applications of polylactic
acid‐based
polymers. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hossein Ramezani Dana
- Mechanics, Surfaces and Materials Processing (MSMP) – EA 7350 Arts et Metiers Institute of Technology Aix‐en‐Provence France
- Texas A&M Engineering Experiment Station (TEES) Texas A&M University College Station Texas USA
| | - Farnoosh Ebrahimi
- PRISM Polymer, Recycling, Industrial, Sustainability and Manufacturing Technological University of the Shannon (TUS) Athlone Ireland
| |
Collapse
|
6
|
Biocompatible PLA/PCL blends nanocomposites doped with nanographite: Physico-chemical, and thermal behaviour. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03117-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
7
|
Dadashi P, Babaei A, Abdolrasouli MH. Investigating the hydrolytic degradation of
PLA
/
PCL
/
ZnO
nanocomposites by using viscoelastic models. POLYM ENG SCI 2022. [DOI: 10.1002/pen.25893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Parsa Dadashi
- School of Chemical Engineering, College of Engineering, University of Tehran Tehran Iran
- Faculty of Engineering, Department of Polymer Engineering Golestan University Gorgan Iran
| | - Amir Babaei
- Faculty of Engineering, Department of Polymer Engineering Golestan University Gorgan Iran
| | | |
Collapse
|
8
|
Shape-Memory Materials via Electrospinning: A Review. Polymers (Basel) 2022; 14:polym14050995. [PMID: 35267818 PMCID: PMC8914658 DOI: 10.3390/polym14050995] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/16/2022] [Accepted: 02/26/2022] [Indexed: 01/27/2023] Open
Abstract
This review aims to point out the importance of the synergic effects of two relevant and appealing polymeric issues: electrospun fibers and shape-memory properties. The attention is focused specifically on the design and processing of electrospun polymeric fibers with shape-memory capabilities and their potential application fields. It is shown that this field needs to be explored more from both scientific and industrial points of view; however, very promising results have been obtained up to now in the biomedical field and also as sensors and actuators and in electronics.
Collapse
|
9
|
A Novel Study of Synthesis and Experimental Investigation on Hybrid Biocomposites for Biomedical Orthopedic Application. INT J POLYM SCI 2021. [DOI: 10.1155/2021/7549048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In recent years the biocomposites are highly utilized in the biomedical applications, due to excellent strength as well as weight ratio. A lot of natural fibers, namely, flax, hemp, jute, kenaf, and sisal are cheaply available in colossal amount. Aim of this study, a novel approach, is executed for construction of biomedical orthopedic parts by using mixture of natural fibers. This work handled biocomposites such as flax fiber (FX), chicken feather fiber (CF), kenaf fiber (KF), and rice husk fiber (RH) effectively. From all these composites, four sets of mixed fibers with reinforcement of polylactic acid polymer used for creating orthopedic parts. The hand-lay-based methodology is undertaken for preparation of hybrid biocomposites. Parameters involved for this study are fiber types (KF + RH, RH + FX, FX + CF, and CF + KF), laminate count (2, 4, 6 and 8) infill density (30%, 60%, 90%, and 120%), and raster angle (0/60, 30/120, 50/140, and 70/160). Finding of this work is dimensional accuracy, flexural strength, and shore hardness that are analyzed by L16 orthogonal array. ANOVA statistical analysis is enhanced and enlightens the results of flexural strength and source hardness of the biocomposites. Amongst in four parameters, the fiber type parameter extremely contributes such as 40.50% in the flexural analysis. Similarly, laminate count parameter highly contributes such as 31.01% in the shore hardness analysis.
Collapse
|
10
|
Thermal Stability and Dynamic Mechanical Properties of Poly( ε-caprolactone)/Chitosan Composite Membranes. MATERIALS 2021; 14:ma14195538. [PMID: 34639932 PMCID: PMC8509319 DOI: 10.3390/ma14195538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/14/2021] [Accepted: 09/20/2021] [Indexed: 11/17/2022]
Abstract
Poly (ε-caprolactone) (PCL) and chitosan (CS) are widely used as biodegradable and biocompatible polymers with desirable properties for tissue engineering applications. Composite membranes (CS-PCL) with various blend ratios (CS:PCL, w/w) of 0:100, 5:95, 10:90, 15:85, 20:80, and 100:0 were successfully prepared by lyophilization. The thermal stabilities of the CS-PCL membranes were systematically characterized by thermogravimetric analysis (TG), dynamic thermogravimetry (DTG), and differential scanning calorimetry (DSC). It was shown that the blend ratio of PCL and CS had a significant effect on the thermal stability, hydrophilicity, and dynamic mechanical viscoelasticity of the CS-PCL membranes. All the samples in the experimental range exhibited high elasticity at low temperature and high viscosity at high temperatures by dynamic mechanical thermal analysis (DMTA). The performances of the CS-PCL membranes were at optimum levels when the blend ratio (w/w) was 10:90. The glass transition temperature of the CS-PCL membranes increased from 64.8 °C to 76.6 °C compared to that of the pure PCL, and the initial thermal decomposition temperature reached 86.7 °C. The crystallinity and porosity went up to 29.97% and 85.61%, respectively, while the tensile strength and elongation at the breakage were 20.036 MPa and 198.72%, respectively. Therefore, the 10:90 (w/w) blend ratio of CS/PCL is recommended to prepare CS-PCL membranes for tissue engineering applications.
Collapse
|
11
|
Leonés A, Salaris V, Mujica-Garcia A, Arrieta MP, Lopez D, Lieblich M, Kenny JM, Peponi L. PLA Electrospun Fibers Reinforced with Organic and Inorganic Nanoparticles: A Comparative Study. Molecules 2021; 26:molecules26164925. [PMID: 34443512 PMCID: PMC8401602 DOI: 10.3390/molecules26164925] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/10/2021] [Accepted: 08/10/2021] [Indexed: 11/17/2022] Open
Abstract
In this work, different poly (lactic acid) (PLA)-based nanocomposite electrospun fibers, reinforced with both organic and inorganic nanoparticles, were obtained. As organic fibers, cellulose nanocrystals, CNC, both neat and functionalized by “grafting from” reaction, chitosan and graphene were used; meanwhile, hydroxyapatite and silver nanoparticles were used as inorganic fibers. All of the nanoparticles were added at 1 wt% with respect to the PLA matrix in order to be able to compare their effect. The main aim of this work was to study the morphological, thermal and mechanical properties of the different systems, looking for differences between the effects of the addition of organic or inorganic nanoparticles. No differences were found in either the glass transition temperature or the melting temperature between the different electrospun systems. However, systems reinforced with both neat and functionalized CNC exhibited an enhanced degree of crystallinity of the electrospun fibers, by up to 12.3%. From a mechanical point of view, both organic and inorganic nanoparticles exhibited a decreased elastic modulus and tensile strength in comparison to neat electrospun PLA fibers, improving their elongation at break. Furthermore, all of the organic and inorganic reinforced systems disintegrated under composting conditions after 35 days.
Collapse
Affiliation(s)
- Adrián Leonés
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, The Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
| | - Valentina Salaris
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
| | - Alicia Mujica-Garcia
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
- Civil and Environmental Engineering Department and UDR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy
| | - Marina P. Arrieta
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
- Departamento de Ingeniería Química Industrial y del Medio Ambiente, Escuela Politécnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid (ETSII-UPM), Calle José Gutiérrez Abascal 2, 28006 Madrid, Spain
- Grupo de Investigación: Polímeros, Caracterización y Aplicaciones (POLCA), 28006 Madrid, Spain
| | - Daniel Lopez
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, The Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
| | - Marcela Lieblich
- Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), 28040 Madrid, Spain;
| | - José Maria Kenny
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
- Civil and Environmental Engineering Department and UDR INSTM, University of Perugia, Strada di Pentima 4, 05100 Terni, Italy
- Correspondence: (J.M.K.); (L.P.)
| | - Laura Peponi
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (V.S.); (A.M.-G.); (M.P.A.); (D.L.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy, The Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
- Correspondence: (J.M.K.); (L.P.)
| |
Collapse
|
12
|
Zhukova PA, Senatov FS, Zadorozhnyy MY, Chmelyuk NS, Zaharova VA. Polymer Composite Materials Based on Polylactide with a Shape Memory Effect for "Self-Fitting" Bone Implants. Polymers (Basel) 2021; 13:polym13142367. [PMID: 34301124 PMCID: PMC8309584 DOI: 10.3390/polym13142367] [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: 06/11/2021] [Revised: 07/16/2021] [Accepted: 07/17/2021] [Indexed: 11/16/2022] Open
Abstract
The development of adaptive medical structures is one of the promising areas of bioengineering. Polymer composite materials based on polylactide (PLA) are interesting not only for their properties, such as biocompatibility, mechanical properties, biodegradation, and convenience of use, but also for demonstrating shape memory effect (SME). In this study, reducing the activation initiation temperature and the SME activation energy was achieved by forming a composite based on PLA containing 10% poly (ε-caprolactone) (PCL). The effect of the plasticizer on the structure, mechanical properties, and especially SME of the composite, was studied by DSC, SEM, FTIR spectroscopy, compression tests, and DMA. By varying the composition, the beginning of the SME activation was reached at 45 °C, and the apparent activation energy of the process decreased by 85 kJ/mol, ensuring safe and effective use of the material as a precursor for temporary self-fitting scaffolds for reconstructive surgery.
Collapse
Affiliation(s)
- P. A. Zhukova
- National University of Science and Technology “MISIS”, Leninskiy pr. 4, 119049 Moscow, Russia; (F.S.S.); (M.Y.Z.); (N.S.C.)
- Correspondence: ; Tel.: +7-901-753-21-40
| | - F. S. Senatov
- National University of Science and Technology “MISIS”, Leninskiy pr. 4, 119049 Moscow, Russia; (F.S.S.); (M.Y.Z.); (N.S.C.)
| | - M. Yu. Zadorozhnyy
- National University of Science and Technology “MISIS”, Leninskiy pr. 4, 119049 Moscow, Russia; (F.S.S.); (M.Y.Z.); (N.S.C.)
| | - N. S. Chmelyuk
- National University of Science and Technology “MISIS”, Leninskiy pr. 4, 119049 Moscow, Russia; (F.S.S.); (M.Y.Z.); (N.S.C.)
| | - V. A. Zaharova
- A.N. Kosygin Russian State University, St. Sadovnycheskaya 33/1, 115035 Moscow, Russia;
| |
Collapse
|
13
|
Fabrication and Properties of Electrospun and Electrosprayed Polyethylene Glycol/Polylactic Acid (PEG/PLA) Films. COATINGS 2021. [DOI: 10.3390/coatings11070790] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Polylactic acid (PLA) film is an alternative filter material for heat-not-burn (HNB) tobacco, but its controllability in cooling performance is limited. In this work, polyethylene glycol (PEG) was introduced to form a polyethylene glycol/polylactic acid (PEG/PLA) film by electrospinning or electrospraying techniques to enhance the cooling performance, due to its lower glass transition and melting temperatures. The PEG/PLA films with typical electrospun or electrosprayed morphologies were successfully fabricated. One typical endothermic peak at approximately 65 °C was clearly observed for the melting PEG phase in the heating process, and the re-crystallization temperature represented by an exothermic peak was effectively lowered to 90–110 °C during the cooling process, indicating that the cooling performance is greatly enhanced by the introduction of the PEG phase. Additionally, the wetting properties and adsorption properties were also intensively studied by characterizing the contact angles, and the as-prepared PEG/PLA films all showed good affinity to water, 1,2-propandiol and triglyceride. Furthermore, the PEG/PLA film with a PLA content of 35 wt.% revealed the largest elasticity modulus of 378.3 ± 68.5 MPa and tensile strength of 10.5 ± 1.1 MPa. The results achieved in this study can guide the development of other filter materials for HNB tobacco application.
Collapse
|
14
|
Abstract
Smart scaffolds based on shape memory polymer (SMPs) have been increasingly studied in tissue engineering. The unique shape actuating ability of SMP scaffolds has been utilized to improve delivery and/or tissue defect filling. In this regard, these scaffolds may be self-deploying, self-expanding, or self-fitting. Smart scaffolds are generally thermoresponsive or hydroresponsive wherein shape recovery is driven by an increase in temperature or by hydration, respectively. Most smart scaffolds have been directed towards regenerating bone, cartilage, and cardiovascular tissues. A vast variety of smart scaffolds can be prepared with properties targeted for a specific tissue application. This breadth of smart scaffolds stems from the variety of compositions employed as well as the numerous methods used to fabricated scaffolds with the desired morphology. Smart scaffold compositions span across several distinct classes of SMPs, affording further tunability of properties using numerous approaches. Specifically, these SMPs include those based on physically cross-linked and chemically cross-linked networks and include widely studied shape memory polyurethanes (SMPUs). Various additives, ranging from nanoparticles to biologicals, have also been included to impart unique functionality to smart scaffolds. Thus, given their unique functionality and breadth of tunable properties, smart scaffolds have tremendous potential in tissue engineering.
Collapse
Affiliation(s)
- Michaela R Pfau
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA.
| | - Melissa A Grunlan
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA. and Department of Materials Science and Engineering, Texas A&M University, College Station, TX 77843, USA and Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
| |
Collapse
|
15
|
|
16
|
|
17
|
Yue C, Hua M, Li H, Liu Y, Xu M, Song Y. Printability,
shape‐memory
, and mechanical properties of
PHB
/
PCL
/
CNFs
composites. J Appl Polym Sci 2021. [DOI: 10.1002/app.50510] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Chengbin Yue
- Key Laboratory of Bio‐based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin China
| | - Mengqing Hua
- Key Laboratory of Bio‐based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin China
| | - Heqian Li
- Key Laboratory of Bio‐based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin China
| | - Yingtao Liu
- Key Laboratory of Bio‐based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin China
| | - Min Xu
- Key Laboratory of Bio‐based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin China
| | - Yongming Song
- Key Laboratory of Bio‐based Material Science and Technology (Ministry of Education) Northeast Forestry University Harbin China
| |
Collapse
|
18
|
Li C, Ji X, Tu Y, Zheng Y, Shen J, Guo S. Self-Optimization of the Shape-Memory Effect during Programming Cycle Tests. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01961] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Chunhai Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065, China
| | - Xiaoying Ji
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065, China
| | - Youlei Tu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065, China
| | - Yu Zheng
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065, China
| | - Jiabin Shen
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065, China
| | - Shaoyun Guo
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
- Sichuan Provincial Engineering Laboratory of Plastic/Rubber Complex Processing Technology,Chengdu 610065, China
| |
Collapse
|
19
|
Watai JS, Calvão PS, Rigolin TR, Bettini SHDP, Souza AMC. Retardation effect of nanohydroxyapatite on the hydrolytic degradation of poly (lactic acid). POLYM ENG SCI 2020. [DOI: 10.1002/pen.25459] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Juliana Satie Watai
- Department of Materials EngineeringCentro Universitário FEI São Bernardo do Campo SP Brazil
| | - Patrícia Schmid Calvão
- Department of Materials EngineeringCentro Universitário FEI São Bernardo do Campo SP Brazil
| | - Talita Rocha Rigolin
- Department of Materials EngineeringUniversidade Federal de São Carlos São Carlos SP Brazil
| | | | | |
Collapse
|
20
|
Huang K, Yang MS, Tang YJ, Ling SY, Pan F, Liu XD, Chen J. Porous shape memory scaffold of dextran and hydroxyapatite for minimum invasive implantation for bone tissue engineering applications. J Biomater Appl 2020; 35:823-837. [PMID: 32842853 DOI: 10.1177/0885328220950062] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Minimally invasive implantation of a porous scaffold of large volume into bone defect site remains a challenge. Scaffolds based on shape memory polymer (SMP) show potential to be delivered in the compact form via minimally invasive surgery. The present study chooses poly (ε-caprolactone)-diols (PCL-diols) as the SMP to cross-link carboxyl dextran via ester bonds together with particle leaching method to yield a porous SMP scaffold. The inner surfaces of porous SMP scaffold are then mineralized via in situ precipitation to yield mineralized porous SMP-hydroxyapatite (SMP-HA) scaffold. The porous SMP-HA scaffold possesses pore size of 400-500 μm, with HA particles uniformly distributed and orientationally aligned on the inner surfaces of scaffold. X-ray diffraction (XRD) and differential scanning calorimetry (DSC) are carried out to identify the HA deposition. The phase transition temperature of the scaffold is adjusted to 38°C via changing the dosage of PCL (molecule weight: 2800) to endow the scaffold with shape deformation and fixed properties, as well as well-performed shape recovery property under body temperature. Bone marrow mesenchymal stem cells (BMSCs) adhere on the inner surfaces of SMP-HA scaffold, exhibiting larger spreading area when compared to cells adhered on SMP scaffold without HA, promoting its osteogenesis. In vivo degradation showed that the scaffold degrades completely after 6 months post-implantation. At the same time, significant tissue and capillary invasion indicated that the present porous SMP-HA scaffold hold great promise towards bone tissue engineering applications.
Collapse
Affiliation(s)
- Kai Huang
- Shanghai Zhabei District Library, Shanghai, China
| | - Mo-Song Yang
- Shanghai Zhabei District Library, Shanghai, China
| | - Yu-Jun Tang
- Shanghai Zhabei District Library, Shanghai, China
| | | | - Feng Pan
- Shanghai Zhabei District Library, Shanghai, China
| | | | - Jun Chen
- Department of Orthopedic, Zhabei Central Hospital of Jin'an District, Shanghai, China
| |
Collapse
|
21
|
Salgado C, Arrieta MP, Sessini V, Peponi L, López D, Fernández-García M. Functional properties of photo-crosslinkable biodegradable polyurethane nanocomposites. Polym Degrad Stab 2020. [DOI: 10.1016/j.polymdegradstab.2020.109204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
22
|
Leonés A, Mujica-Garcia A, Arrieta MP, Salaris V, Lopez D, Kenny JM, Peponi L. Organic and Inorganic PCL-Based Electrospun Fibers. Polymers (Basel) 2020; 12:polym12061325. [PMID: 32532052 PMCID: PMC7361952 DOI: 10.3390/polym12061325] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Revised: 05/25/2020] [Accepted: 06/02/2020] [Indexed: 11/16/2022] Open
Abstract
In this work, different nanocomposite electrospun fiber mats were obtained based on poly(e-caprolactone) (PCL) and reinforced with both organic and inorganic nanoparticles. In particular, on one side, cellulose nanocrystals (CNC) were synthesized and functionalized by "grafting from" reaction, using their superficial OH- group to graft PCL chains. On the other side, commercial chitosan, graphene as organic, while silver, hydroxyapatite, and fumed silica nanoparticles were used as inorganic reinforcements. All the nanoparticles were added at 1 wt% with respect to the PCL polymeric matrix in order to compare the different behavior of the woven no-woven nanocomposite electrospun fibers with a fixed amount of both organic and inorganic nanoparticles. From the thermal point of view, no difference was found between the effect of the addition of organic or inorganic nanoparticles, with no significant variation in the Tg (glass transition temperature), Tm (melting temperature), and the degree of crystallinity, leading in all cases to high crystallinity electrospun mats. From the mechanical point of view, the highest values of Young modulus were obtained when graphene, CNC, and silver nanoparticles were added to the PCL electrospun fibers. Moreover, all the nanoparticles used, both organic and inorganic, increased the flexibility of the electrospun mats, increasing their elongation at break.
Collapse
Affiliation(s)
- Adrián Leonés
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy—The Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
| | - Alicia Mujica-Garcia
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
- Facultad de Óptica y Optometría, Universidad Complutense de Madrid (UCM), Arcos de Jalón 118, 28037 Madrid, Spain
| | - Marina Patricia Arrieta
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
- Civil and Environmental Engineering Department, University of Perugia, Via G, Duranti 93, 06125 Perugia, Italy
| | - Valentina Salaris
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
| | - Daniel Lopez
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy—The Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
| | - José Maria Kenny
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
- Civil and Environmental Engineering Department, University of Perugia, Via G, Duranti 93, 06125 Perugia, Italy
| | - Laura Peponi
- Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), C/Juan de la Cierva 3, 28006 Madrid, Spain; (A.L.); (A.M.-G.); (M.P.A.); (V.S.); (D.L.); (J.M.K.)
- Interdisciplinary Platform for Sustainable Plastics towards a Circular Economy—The Spanish National Research Council (SusPlast-CSIC), 28006 Madrid, Spain
- Correspondence:
| |
Collapse
|
23
|
Biodegradable and Antimicrobial PLA-OLA Blends Containing Chitosan-Mediated Silver Nanoparticles with Shape Memory Properties for Potential Medical Applications. NANOMATERIALS 2020; 10:nano10061065. [PMID: 32486235 PMCID: PMC7352577 DOI: 10.3390/nano10061065] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 12/05/2022]
Abstract
To use shape memory materials based on poly (lactic acid) (PLA) for medical applications is essential to tune their transition temperature (Ttrans) near to the human body temperature. In this study, the combination of lactic acid oligomer (OLA), acting as a plasticizer, together with chitosan-mediated silver nanoparticles (AgCH-NPs) to create PLA matrices is studied to obtain functional shape memory polymers for potential medical applications. PLA/OLA nanocomposites containing different amounts of AgCH-NPs were obtained and profusely characterized relating their structure with their antimicrobial and shape memory performances. Nanocomposites exhibited shape memory responses at the temperature of interest (near physiological one), as well as excellent shape memory responses, shorter recovery times and higher recovery ratios (over 100%) when compared to neat materials. Moreover, antibacterial activity tests confirmed biocidal activity; therefore, these functional polymer nanocomposites with shape memory, degradability and biocidal activity show great potential for soft actuation applications in the medical field.
Collapse
|
24
|
Liu Y, Cao H, Ye L, Coates P, Caton-Rose F, Zhao X. Long-Chain Branched Poly(lactic acid)-b-poly(lactide-co-caprolactone): Structure, Viscoelastic Behavior, and Triple-Shape Memory Effect as Smart Bone Fixation Material. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.9b06514] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yalong Liu
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Huijie Cao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Lin Ye
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| | - Phil Coates
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, U.K
| | - Fin Caton-Rose
- School of Engineering, Design and Technology, University of Bradford, Bradford BD7 1DP, U.K
| | - Xiaowen Zhao
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, China
| |
Collapse
|
25
|
Using cellulose nanocrystals as sustainable additive to enhance mechanical and shape memory properties of PLA/ENR thermoplastic vulcanizates. Carbohydr Polym 2020; 230:115618. [DOI: 10.1016/j.carbpol.2019.115618] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 11/11/2019] [Accepted: 11/12/2019] [Indexed: 02/07/2023]
|
26
|
Yenpech N, Intasanta V, Chirachanchai S. Laser-triggered shape memory based on thermoplastic and thermoset matrices with silver nanoparticles. POLYMER 2019. [DOI: 10.1016/j.polymer.2019.121792] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
27
|
Ren Y, Cui X, Wang L, Wang Y, Han L, Zhou Q, Song X. A new x-shaped copolymer role in poly(L-lactide) shape memory. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2019.07.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
28
|
Ren D, Chen Y, Yang S, Li H, Rehman HU, Liu H. Fast and Efficient Electric‐Triggered Self‐Healing Shape Memory of CNTs@rGO Enhanced PCLPLA Copolymer. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Du Ren
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Yujie Chen
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Senlin Yang
- Dongfang Electric Wind Power Co. Ltd. Deyang 618000 P. R. China
| | - Hua Li
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
- Collaborative Innovation Centre for Advanced Ship and Deep‐Sea ExplorationShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Hafeez Ur Rehman
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Hezhou Liu
- State Key Laboratory of Metal Matrix CompositesSchool of Materials Science and EngineeringShanghai Jiao Tong University Shanghai 200240 P. R. China
- Collaborative Innovation Centre for Advanced Ship and Deep‐Sea ExplorationShanghai Jiao Tong University Shanghai 200240 P. R. China
| |
Collapse
|
29
|
Robust microfluidic construction of konjac glucomannan-based micro-films for active food packaging. Int J Biol Macromol 2019; 137:982-991. [DOI: 10.1016/j.ijbiomac.2019.07.045] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 07/02/2019] [Accepted: 07/07/2019] [Indexed: 12/16/2022]
|
30
|
|
31
|
Aldas M, Ferri JM, Lopez‐Martinez J, Samper MD, Arrieta MP. Effect of pine resin derivatives on the structural, thermal, and mechanical properties of Mater‐Bi type bioplastic. J Appl Polym Sci 2019. [DOI: 10.1002/app.48236] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- M. Aldas
- Departamento de Ciencia de Alimentos y Biotecnología, Facultad de Ingeniería Química y AgroindustriaEscuela Politécnica Nacional 170517 Quito Ecuador
- Instituto de Tecnología de Materiales, Universitat Politècnica de València 03801 Alcoy‐Alicante Spain
| | - J. M. Ferri
- Instituto de Tecnología de Materiales, Universitat Politècnica de València 03801 Alcoy‐Alicante Spain
| | - J. Lopez‐Martinez
- Instituto de Tecnología de Materiales, Universitat Politècnica de València 03801 Alcoy‐Alicante Spain
| | - M. D. Samper
- Instituto de Tecnología de Materiales, Universitat Politècnica de València 03801 Alcoy‐Alicante Spain
| | - M. P. Arrieta
- Departamento de Química Orgánica, Facultad de Ciencias QuímicasUniversidad Complutense de Madrid, Avenida Complutense s/n, Ciudad Universitaria 28040 Madrid Spain
| |
Collapse
|
32
|
Hajibeygi M, Shafiei‐Navid S. Design and preparation of poly(lactic acid) hydroxyapatite nanocomposites reinforced with phosphorus‐based organic additive: Thermal, combustion, and mechanical properties studies. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4652] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|
33
|
Andrade TM, Mello DCR, Elias CMV, Abdala JMA, Silva E, Vasconcellos LMR, Tim CR, Marciano FR, Lobo AO. In vitro and in vivo evaluation of rotary-jet-spun poly(ɛ-caprolactone) with high loading of nano-hydroxyapatite. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2019; 30:19. [PMID: 30689050 DOI: 10.1007/s10856-019-6222-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 01/10/2019] [Indexed: 06/09/2023]
Abstract
Herein, poly(ɛ-caprolactone) (PCL) mats with different amounts of nanohydroxyapatite (nHAp) were produced using rotary-jet spinning (RJS) and evaluated in vitro and in vivo. The mean fiber diameters of the PCL, PCL/nHAp (3%), PCL/nHAp (5%), and PCL/nHAp (20%) scaffolds were 1847 ± 1039, 1817 ± 1044, 1294 ± 4274, and 845 ± 248 nm, respectively. Initially, all the scaffolds showed superhydrophobic behavior (contact angle around of 140oC), but decreased to 80° after 30 min. All the produced scaffolds were bioactive after soaking in simulated body fluid, especially PCL/nHAp (20%). The crystallinity of the PCL scaffolds decreased progressively from 46 to 21% after incorporation of 20% nHAp. In vitro and in vivo cytotoxicity were investigated, as well as the mats' ability to reduce bacteria biofilm formation. In vitro cellular differentiation was evaluated by measuring alkaline phosphatase activity and mineralized nodule formation. Overall, we identified the total ideal amount of nHAp to incorporate in PCL mats, which did not show in vitro or in vivo cytotoxicity and promoted lamellar bone formation independently of the amounts of nHAp. The scaffolds with nHAp showed reduced bacterial proliferation. Alizarin red staining was higher in materials associated with nHAp than in those without nHAp. Overall, this study demonstrates that PCL with nHAp prepared by RJS merits further evaluation for orthopedic applications.
Collapse
Affiliation(s)
- Telmo M Andrade
- Instituto Científico e Tecnológico, Universidade Brasil, Itaquera, São Paulo, Brazil
| | - Daphne C R Mello
- Departamento de Biociência e Diagnóstico Oral, Instituto de Ciência e Tecnologia, Universidade Estadual de São Paulo, São Jose dos Campos, São Paulo, Brazil
| | - Conceição M V Elias
- Instituto Científico e Tecnológico, Universidade Brasil, Itaquera, São Paulo, Brazil
| | - Julia M A Abdala
- Instituto de Pesquisa e Desenvolvimento, Universidade do Vale do Paraiba, São Jose dos Campos, São Paulo, Brazil
| | - Edmundo Silva
- Departamento de Biociência e Diagnóstico Oral, Instituto de Ciência e Tecnologia, Universidade Estadual de São Paulo, São Jose dos Campos, São Paulo, Brazil
| | - Luana M R Vasconcellos
- Departamento de Biociência e Diagnóstico Oral, Instituto de Ciência e Tecnologia, Universidade Estadual de São Paulo, São Jose dos Campos, São Paulo, Brazil
| | - Carla R Tim
- Instituto Científico e Tecnológico, Universidade Brasil, Itaquera, São Paulo, Brazil
| | - Fernanda R Marciano
- Instituto Científico e Tecnológico, Universidade Brasil, Itaquera, São Paulo, Brazil
| | - Anderson O Lobo
- Instituto Científico e Tecnológico, Universidade Brasil, Itaquera, São Paulo, Brazil.
- LIMAV-Laboratório Interdisciplinar de Materiais Avançados, PPGCM-Programa de Pós-graduação em Ciência e Engenharia de Materiais, UFPI-Universidade Federal do Piauí, Teresina, Piauí, Brazil.
| |
Collapse
|
34
|
Poly (lactic acid) blends: Processing, properties and applications. Int J Biol Macromol 2018; 125:307-360. [PMID: 30528997 DOI: 10.1016/j.ijbiomac.2018.12.002] [Citation(s) in RCA: 269] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 11/29/2018] [Accepted: 12/01/2018] [Indexed: 11/21/2022]
Abstract
Poly (lactic acid) or polylactide (PLA) is a commercial biobased, biodegradable, biocompatible, compostable and non-toxic polymer that has competitive material and processing costs and desirable mechanical properties. Thereby, it can be considered favorably for biomedical applications and as the most promising substitute for petroleum-based polymers in a wide range of commodity and engineering applications. However, PLA has some significant shortcomings such as low melt strength, slow crystallization rate, poor processability, high brittleness, low toughness, and low service temperature, which limit its applications. To overcome these limitations, blending PLA with other polymers is an inexpensive approach that could also tailor the final properties of PLA-based products. During the last two decades, researchers investigated the synthesis, processing, properties, and development of various PLA-based blend systems including miscible blends of poly l-lactide (PLLA) and poly d-lactide (PDLA), which generate stereocomplex crystals, binary immiscible/miscible blends of PLA with other thermoplastics, multifunctional ternary blends using a third polymer or fillers such as nanoparticles, as well as PLA-based blend foam systems. This article reviews all these investigations and compares the syntheses/processing-morphology-properties interrelationships in PLA-based blends developed so far for various applications.
Collapse
|
35
|
Liminana P, Quiles-Carrillo L, Boronat T, Balart R, Montanes N. The Effect of Varying Almond Shell Flour (ASF) Loading in Composites with Poly(Butylene Succinate (PBS) Matrix Compatibilized with Maleinized Linseed Oil (MLO). MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2179. [PMID: 30400300 PMCID: PMC6265868 DOI: 10.3390/ma11112179] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 10/30/2018] [Accepted: 11/01/2018] [Indexed: 11/16/2022]
Abstract
In this work poly(butylene succinate) (PBS) composites with varying loads of almond shell flour (ASF) in the 10⁻50 wt % were manufactured by extrusion and subsequent injection molding thus showing the feasibility of these combined manufacturing processes for composites up to 50 wt % ASF. A vegetable oil-derived compatibilizer, maleinized linseed oil (MLO), was used in PBS/ASF composites with a constant ASF to MLO (wt/wt) ratio of 10.0:1.5. Mechanical properties of PBS/ASF/MLO composites were obtained by standard tensile, hardness, and impact tests. The morphology of these composites was studied by field emission scanning electron microscopy-FESEM) and the main thermal properties were obtained by differential scanning calorimetry (DSC), dynamical mechanical-thermal analysis (DMTA), thermomechanical analysis (TMA), and thermogravimetry (TGA). As the ASF loading increased, a decrease in maximum tensile strength could be detected due to the presence of ASF filler and a plasticization effect provided by MLO which also provided a compatibilization effect due to the interaction of succinic anhydride polar groups contained in MLO with hydroxyl groups in both PBS (hydroxyl terminal groups) and ASF (hydroxyl groups in cellulose). FESEM study reveals a positive contribution of MLO to embed ASF particles into the PBS matrix, thus leading to balanced mechanical properties. Varying ASF loading on PBS composites represents an environmentally-friendly solution to broaden PBS uses at the industrial level while the use of MLO contributes to overcome or minimize the lack of interaction between the hydrophobic PBS matrix and the highly hydrophilic ASF filler.
Collapse
Affiliation(s)
- Patricia Liminana
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Luis Quiles-Carrillo
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Teodomiro Boronat
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Rafael Balart
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| | - Nestor Montanes
- Technological Institute of Materials (ITM), Universitat Politècnica de València (UPV), Plaza Ferrándiz y Carbonell 1, 03801 Alcoy, Spain.
| |
Collapse
|