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Brebu M, Pamfil D, Stoica I, Aflori M, Voicu G, Stoleru E. Photo-crosslinked chitosan-gelatin xerogel-like coating onto "cold" plasma functionalized poly(lactic acid) film as cell culture support. Carbohydr Polym 2024; 339:122288. [PMID: 38823936 DOI: 10.1016/j.carbpol.2024.122288] [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: 03/16/2024] [Revised: 05/13/2024] [Accepted: 05/15/2024] [Indexed: 06/03/2024]
Abstract
This paper reports on biofunctionalisation of a poly(lactic acid) (PLA) film by surface activation through cold plasma treatment followed by coating with a chitosan-gelatin xerogel. The UV cross-linking of the xerogel precursor was simultaneously performed with the fixation onto the PLA support. This has a strong effect on surface properties, in terms of wettability, surface free energy, morphology and micromechanical features. The hydrophilic - hydrophobic character of the surface, determined by contact angle measurements, was tuned along the process, passing from moderate hydrophobic PLA to enhanced hydrophilic plasma activated surface, which favors coating adhesion, then to moderate hydrophobic chitosan-gelatin coating. The coating has a Lewis amphoteric surface, with a porous xerogel-like morphology, as revealed by scanning electron microscopy images. By riboflavin mediated UV cross-linking the chitosan-gelatin coating becomes high adhesive and with a more pronounced plasticity, as shown by AFM force-distance spectroscopy. Thus prepared surface-coated PLA supports were successfully tested for growth of dermal fibroblasts, which are known for their induction potential of chondrogenic cells, which is very important in cartilage tissue engineering.
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Affiliation(s)
- Mihai Brebu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487, Iasi, Romania
| | - Daniela Pamfil
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487, Iasi, Romania
| | - Iuliana Stoica
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487, Iasi, Romania
| | - Magdalena Aflori
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487, Iasi, Romania
| | - Geanina Voicu
- "Medical and Pharmaceutical BioNanoTechnologies" Laboratory (BioNanoMed) Institute of Cellular Biology and Pathology, "Nicolae Simionescu" 8, BP Hasdeu Street, 050568 Bucharest, Romania
| | - Elena Stoleru
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41A, 700487, Iasi, Romania.
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2
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Teimoori M, Nokhbatolfoghahaei H, Khojasteh A. Bilayer scaffolds/membranes for bone tissue engineering applications: A systematic review. BIOMATERIALS ADVANCES 2023; 153:213528. [PMID: 37352742 DOI: 10.1016/j.bioadv.2023.213528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 06/13/2023] [Accepted: 06/14/2023] [Indexed: 06/25/2023]
Abstract
OBJECTIVE This systematic review evaluates the purpose, materials, physio-mechanical, and biological effects of bilayer scaffolds/membranes used for bone tissue engineering applications. METHODS A comprehensive electronic search of English-language literature from 2012 to October 2022 was conducted in PubMed, Scopus, ScienceDirect, and Google Scholar online databases according to the PRISMA 2020 guidelines. The quality of animal studies was evaluated through the SYRCLE's risk of bias tool. RESULTS A total of 77 studies were sought for retrieval, and 39 studies met the inclusion criteria. According to the synthesis results, most bilayers had a dense barrier layer that prevented connective tissue penetration and a loose osteogenic layer that supported cell migration and osteogenesis. PLGA, PCL, and chitosan were the most common polymers in the barrier layers, while the most utilized polymers in osteogenic layers were PLGA and gelatin. Electrospinning and solvent casting were the most common fabrication methods to design the bilayer structures. Many studies reported higher biological results for bilayers compared to their single layers. Also, fabricated bilayers' in vitro osteogenesis and in vivo new bone formation were significantly superior or at least comparable to the frequently used commercial membranes. CONCLUSION 1) Bilayers with two distinct layers and different materials, porosities, mechanical properties, and biological behavior can significantly improve heterogeneous bone regeneration; 2) the addition of ceramics and/or drugs to the osteogenic layer enhances the osteogenic properties of the bilayers; 3) fabrication method and pore size of the layers play an important role in determining the mechanical and biological behavior of them.
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Affiliation(s)
- Mahdis Teimoori
- Student Research Committee, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hanieh Nokhbatolfoghahaei
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arash Khojasteh
- Dental Research Center, Research Institute of Dental Sciences, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Cranio-Maxillofacial Surgery, University Hospital, Faculty of Medicine and Health Sciences, University of Antwerp, Antwerp, Belgium.
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3
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Mohammed-Sadhakathullah AHM, Paulo-Mirasol S, Torras J, Armelin E. Advances in Functionalization of Bioresorbable Nanomembranes and Nanoparticles for Their Use in Biomedicine. Int J Mol Sci 2023; 24:10312. [PMID: 37373461 PMCID: PMC10299464 DOI: 10.3390/ijms241210312] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Bioresorbable nanomembranes (NMs) and nanoparticles (NPs) are powerful polymeric materials playing an important role in biomedicine, as they can effectively reduce infections and inflammatory clinical patient conditions due to their high biocompatibility, ability to physically interact with biomolecules, large surface area, and low toxicity. In this review, the most common bioabsorbable materials such as those belonging to natural polymers and proteins for the manufacture of NMs and NPs are reviewed. In addition to biocompatibility and bioresorption, current methodology on surface functionalization is also revisited and the most recent applications are highlighted. Considering the most recent use in the field of biosensors, tethered lipid bilayers, drug delivery, wound dressing, skin regeneration, targeted chemotherapy and imaging/diagnostics, functionalized NMs and NPs have become one of the main pillars of modern biomedical applications.
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Affiliation(s)
- Ahammed H. M. Mohammed-Sadhakathullah
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
| | - Sofia Paulo-Mirasol
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
| | - Juan Torras
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
| | - Elaine Armelin
- Departament d’Enginyeria Química, EEBE, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.2, 08019 Barcelona, Spain; (A.H.M.M.-S.); (S.P.-M.)
- Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, C/Eduard Maristany, 10-14, Ed. I.S, 08019 Barcelona, Spain
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Stepanova M, Dobrodumov A, Averianov I, Gofman I, Nashchekina J, Guryanov I, Klyukin I, Zhdanov A, Korzhikova-Vlakh E, Zhizhin K. Design, Fabrication and Characterization of Biodegradable Composites Containing Closo-Borates as Potential Materials for Boron Neutron Capture Therapy. Polymers (Basel) 2022; 14:polym14183864. [PMID: 36146012 PMCID: PMC9506383 DOI: 10.3390/polym14183864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 12/04/2022] Open
Abstract
Boron neutron capture therapy (BNCT) has been recognized as a very promising approach for cancer treatment. In the case of osteosarcoma, boron-containing scaffolds can be a powerful tool to combine boron delivery to the tumor cells and the repair of postoperative bone defects. Here we describe the fabrication and characterization of novel biodegradable polymer composites as films and 3D-printed matrices based on aliphatic polyesters containing closo-borates (CB) for BNCT. Different approaches to the fabrication of composites have been applied, and the mechanical properties of these composites, kinetics of their degradation, and the release of closo-borate have been studied. The most complex scaffold was a 3D-printed poly(ε-caprolactone) matrix filled with CB-containing alginate/gelatin hydrogel to enhance biocompatibility. The results obtained allowed us to confirm the high potential of the developed composite materials for application in BNCT and bone tissue regeneration.
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Affiliation(s)
- Mariia Stepanova
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
- Correspondence: (M.S.); (I.G.)
| | - Anatoliy Dobrodumov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Ilia Averianov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Iosif Gofman
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
| | - Juliya Nashchekina
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia
| | - Ivan Guryanov
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
- Correspondence: (M.S.); (I.G.)
| | - Ilya Klyukin
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
| | - Andrey Zhdanov
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 198504, Russia
| | - Konstantin Zhizhin
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Moscow 119991, Russia
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Effect of Poly(L-lysine) and Heparin Coatings on the Surface of Polyester-Based Particles on Prednisolone Release and Biocompatibility. Pharmaceutics 2021; 13:pharmaceutics13060801. [PMID: 34072016 PMCID: PMC8229182 DOI: 10.3390/pharmaceutics13060801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/23/2021] [Accepted: 05/25/2021] [Indexed: 01/08/2023] Open
Abstract
A plethora of micro- and nanoparticle types are currently investigated for advanced ocular treatment due to improved drug retention times, higher bioavailability and better biocompatibility. Yet, comparative studies of both physicochemical and toxicological performance of these novel drug delivery systems are still rare. Herein, poly(L-lactic acid)- and poly(ε-caprolactone)-based micro- and nanoparticles were loaded with prednisolone as a model drug. The physicochemical properties of the particles were varied with respect to their hydrophilicity and size as well as their charge and the effect on prednisolone release was evaluated. The particle biocompatibility was assessed by a two-tier testing strategy, combining the EpiOcularTM eye irritation test and bovine corneal opacity and permeability assay. The biodegradable polyelectrolyte corona on the particles’ surface determined the surface charge and the release rate, enabling prednisolone release for at least 30 days. Thereby, the prednisolone release process was mainly governed by molecular diffusion. Finally, the developed particle formulations were found to be nontoxic in the tested range of concentrations.
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Mizuno HL, Tan E, Anraku Y, Sakai T, Sakuma I, Akagi Y. Relationship between Bulk Physicochemical Properties and Surface Wettability of Hydrogels with Homogeneous Network Structure. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5554-5562. [PMID: 32365299 DOI: 10.1021/acs.langmuir.0c00694] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Controlling hydrogel surface wettability is of great importance in the viewpoint of engineering biomaterials that are in contact with cells and tissues. However, studies reporting how the hydrogel bulk properties would affect the surface is scarce, and thus it has been difficult to fabricate hydrogels with the desired properties. Also, there has been no effective method to elucidate this, due to the inhomogeneity introduced in the network structure of conventional hydrogels. Here we report our approach in elucidating the relationship between hydrogel physicochemical parameters and surface wettability by using Tetra-PEG gels, which are known to have homogeneous network structure. Specifically, the polymer volume fraction (φ) and the molecular weight (MW) between the cross-links were controlled. The number of anions, cations, and ionic pairs introduced within the hydrogel, were also individually controlled. The surface wettability of the resulting hydrogels was then evaluated. Results showed that surface wettability is largely dependent on the concentration of charged groups that are introduced in the hydrogel bulk, especially those that are not paired and ionically stabilized. Our findings strongly support the fact that with conventional hydrogels, the correlation between surface wettability and its physicochemical properties had not been evaluated appropriately, and thus our insights will contribute significantly to accumulating further knowledge on controlling hydrogel surface wettability.
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Affiliation(s)
- Hayato L Mizuno
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, Japan, 113-8656
| | - Eiki Tan
- Department of Precision Engineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, Japan, 113-8656
| | - Yasutaka Anraku
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, Japan, 113-8656
| | - Takamasa Sakai
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, Japan, 113-8656
| | - Ichiro Sakuma
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, Japan, 113-8656
- Medical Device Development and Regulation Research Center, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuki Akagi
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo, Japan, 113-8656
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7
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Chyzy A, Tomczykowa M, Plonska-Brzezinska ME. Hydrogels as Potential Nano-, Micro- and Macro-Scale Systems for Controlled Drug Delivery. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E188. [PMID: 31906527 PMCID: PMC6981598 DOI: 10.3390/ma13010188] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 12/13/2022]
Abstract
This review is an extensive evaluation and essential analysis of the design and formation of hydrogels (HGs) for drug delivery. We review the fundamental principles of HGs (their chemical structures, physicochemical properties, synthesis routes, different types, etc.) that influence their biological properties and medical and pharmaceutical applications. Strategies for fabricating HGs with different diameters (macro, micro, and nano) are also presented. The size of biocompatible HG materials determines their potential uses in medicine as drug carriers. Additionally, novel drug delivery methods for enhancing treatment are discussed. A critical review is performed based on the latest literature reports.
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Affiliation(s)
| | | | - Marta E. Plonska-Brzezinska
- Department of Organic Chemistry, Faculty of Pharmacy with the Division of Laboratory Medicine, Medical University of Bialystok, Mickiewicza 2A, 15-222 Bialystok, Poland; (A.C.); (M.T.)
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8
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Seidi F, Zhao W, Xiao H, Jin Y, Saeb MR, Zhao C. Radical polymerization as a versatile tool for surface grafting of thin hydrogel films. Polym Chem 2020. [DOI: 10.1039/d0py00787k] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The surface of solid substrates is the main part that interacts with the environment.
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Affiliation(s)
- Farzad Seidi
- Provincial Key Lab of Pulp & Paper Sci and Tech
- and Joint International Research Lab of Lignocellulosic Functional Materials
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Weifeng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
| | - Huining Xiao
- Department of Chemical Engineering
- University of New Brunswick
- Fredericton
- E3B 5A3 Canada
| | - Yongcan Jin
- Provincial Key Lab of Pulp & Paper Sci and Tech
- and Joint International Research Lab of Lignocellulosic Functional Materials
- Nanjing Forestry University
- Nanjing 210037
- China
| | - Mohammad Reza Saeb
- Department of Resin and Additives
- Institute for Color Science and Technology
- Tehran
- Iran
| | - Changsheng Zhao
- College of Polymer Science and Engineering
- State Key Laboratory of Polymer Materials Engineering
- Sichuan University
- Chengdu 610065
- China
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9
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Impacts of cross-linker chain length on the physical properties of polyampholyte hydrogels. Biointerphases 2019; 14:031002. [DOI: 10.1116/1.5097412] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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10
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Bakry A, Darwish MSA. Hyaluronic Acid and Chitosan Surface Grafted Polylactide Single Crystals as Hydrophilic Building Blocks for Scaffold Materials. POLYMER SCIENCE SERIES A 2019. [DOI: 10.1134/s0965545x18070015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Korzhikov-Vlakh V, Averianov I, Sinitsyna E, Nashchekina Y, Polyakov D, Guryanov I, Lavrentieva A, Raddatz L, Korzhikova-Vlakh E, Scheper T, Tennikova T. Novel Pathway for Efficient Covalent Modification of Polyester Materials of Different Design to Prepare Biomimetic Surfaces. Polymers (Basel) 2018; 10:E1299. [PMID: 30961224 PMCID: PMC6401704 DOI: 10.3390/polym10121299] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Revised: 11/20/2018] [Accepted: 11/21/2018] [Indexed: 11/30/2022] Open
Abstract
To form modern materials with biomimic surfaces, the novel pathway for surface functionalization with specific ligands of well-known and widely used polyester-based rigid media was developed and optimized. Two types of material bases, namely, poly(lactic acid) and poly(ε-caprolactone), as well as two types of material design, e.g., supermacroporous matrices and nanoparticles (NPs), were modified via covalent attachment of preliminary oxidized polyvinylsaccharide poly(2-deoxy-N-methacryloylamido-d-glucose) (PMAG). This polymer, being highly biocompatible and bioinspired, was used to enhance hydrophilicity of the polymer surface and to provide the elevated concentration of reactive groups required for covalent binding of bioligands of choice. The specialties of the interaction of PMAG and its preliminary formed bioconjugates with a chemically activated polyester surface were studied and thoroughly discussed. The supermacroporous materials modified with cell adhesion motifs and Arg-Gly-Asp-containing peptide (RGD-peptide) were tested in the experiments on bone tissue engineering. In turn, the NPs were modified with bioligands ("self-peptide" or camel antibodies) to control their phagocytosis that can be important, for example, for the preparation of drug delivery systems.
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Affiliation(s)
- Viktor Korzhikov-Vlakh
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 199034, Russia.
| | - Ilia Averianov
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
| | - Ekaterina Sinitsyna
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
| | - Yuliya Nashchekina
- Institute of Cytology, Russian Academy of Sciences, St. Petersburg 194064, Russia.
| | - Dmitry Polyakov
- Institute of Experimental Medicine, Russian Academy of Sciences, St. Petersburg 197376, Russia.
| | - Ivan Guryanov
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 199034, Russia.
| | - Antonina Lavrentieva
- Institute of Technical Chemistry, Gottfried-Wilhelm-Leibniz University of Hannover, 30167 Hannover, Germany.
| | - Lukas Raddatz
- Institute of Technical Chemistry, Gottfried-Wilhelm-Leibniz University of Hannover, 30167 Hannover, Germany.
| | - Evgenia Korzhikova-Vlakh
- Institute of Macromolecular Compounds, Russian Academy of Sciences, St. Petersburg 199004, Russia.
| | - Thomas Scheper
- Institute of Technical Chemistry, Gottfried-Wilhelm-Leibniz University of Hannover, 30167 Hannover, Germany.
| | - Tatiana Tennikova
- Institute of Chemistry, Saint-Petersburg State University, St. Petersburg 199034, Russia.
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Averianov IV, Korzhikov-Vlakh VA, Moskalenko YE, Smirnova VE, Tennikova TB. One-pot synthesis of poly(lactic acid) with terminal methacrylate groups for the adjustment of mechanical properties of biomaterials. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.11.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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13
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Liang W, Hu H, Guo P, Ma Y, Li P, Zheng W, Zhang M. Combining Pickering Emulsion Polymerization with Molecular Imprinting to Prepare Polymer Microspheres for Selective Solid-Phase Extraction of Malachite Green. Polymers (Basel) 2017; 9:E344. [PMID: 30971022 PMCID: PMC6418669 DOI: 10.3390/polym9080344] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/28/2017] [Accepted: 08/01/2017] [Indexed: 12/01/2022] Open
Abstract
Malachite green (MG) is currently posing a carcinogenic threat to the safety of human lives; therefore, it is highly desirable to develop an effective method for fast trace detection of MG. Herein, for the first time, this paper presents a systematic study on polymer microspheres, being prepared by combined Pickering emulsion polymerization and molecular imprinting, to detect and purify MG. The microspheres, molecularly imprinted with MG, show enhanced adsorption selectivity to MG, despite a somewhat lowered adsorption capacity, as compared to the counterpart without molecular imprinting. Structural features and adsorption performance of these microspheres are elucidated by different characterizations and kinetic and thermodynamic analyses. The surface of the molecularly imprinted polymer microspheres (M-PMs) exhibits regular pores of uniform pore size distribution, endowing M-PMs with impressive adsorption selectivity to MG. In contrast, the microspheres without molecular imprinting show a larger average particle diameter and an uneven porous surface (with roughness and a large pore size), causing a lower adsorption selectivity to MG despite a higher adsorption capacity. Various adsorption conditions are investigated, such as pH and initial concentration of the solution with MG, for optimizing the adsorption performance of M-PMs in selectively tackling MG. The adsorption kinetics and thermodynamics are deeply discussed and analyzed, so as to provide a full picture of the adsorption behaviors of the polymer microspheres with and without the molecular imprinting. Significantly, M-PMs show promising solid-phase extraction column applications for recovering MG in a continuous extraction manner.
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Affiliation(s)
- Weixin Liang
- College of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology, China National Analytical Center (Guangzhou), Guangzhou 510070, China.
| | - Huawen Hu
- College of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
| | - Pengran Guo
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology, China National Analytical Center (Guangzhou), Guangzhou 510070, China.
| | - Yanfang Ma
- Guangdong Provincial Public Laboratory of Analysis and Testing Technology, China National Analytical Center (Guangzhou), Guangzhou 510070, China.
| | - Peiying Li
- College of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
| | - Wenrou Zheng
- College of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
| | - Min Zhang
- College of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
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Tsou CH, Yao WH, Lu YC, Tsou CY, Wu CS, Chen J, Wang RY, Su C, Hung WS, De Guzman M, Suen MC. Antibacterial Property and Cytotoxicity of a Poly(lactic acid)/Nanosilver-Doped Multiwall Carbon Nanotube Nanocomposite. Polymers (Basel) 2017; 9:E100. [PMID: 30970779 PMCID: PMC6431862 DOI: 10.3390/polym9030100] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 03/08/2017] [Indexed: 11/16/2022] Open
Abstract
A novel method was used to synthesize a nanosilver-doped multiwall carbon nanotube (MWCNT-Ag), and subsequently, the novel poly(lactic acid) (PLA)- and MWCNT-Ag-based biocompatible and antimicrobial nanocomposites were prepared by melt blending. Based on energy dispersive X-ray spectrometry images, an MWCNT-Ag was successfully synthesized. The effect of the MWCNT-Ag on the PLA bionanocomposites was investigated by evaluating their thermal and mechanical properties, antifungal activity, and cytotoxicity. The nanocomposites exhibited a high degree of biocompatibility with the MWCNT-Ag content, which was less than 0.3 phr. Furthermore, tensile strength testing, thermogravimetric analysis, differential scanning calorimetry, and antibacterial evaluation revealed that the tensile strength, thermostability, glass transition temperature, and antibacterial properties were enhanced by increasing the MWCNT-Ag content. Finally, hydrolysis analysis indicated that the low MWCNT-Ag content could increase the packing density of PLA.
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Affiliation(s)
- Chi-Hui Tsou
- Material Corrosion and Protection Key Laboratory of Sichuan Province, College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China.
- Faculties of Biological and Chemical Engineering, Faculties of Materials Engineering, Science and Technology Innovation Center, Panzhihua University, Panzhihua 617000, China.
- Department of Materials Science, Chulalongkorn University, Bangkok 10330, Thailand.
| | - Wei-Hua Yao
- Department of Materials and Textiles, Oriental Institute of Technology, New Taipei City 22061, Taiwan.
| | - Yi-Cheng Lu
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
| | - Chih-Yuan Tsou
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan.
- Faculty of Electronic and Electrical Engineering, Huaiyin Institute of Technology, Huan'an 223003, China.
| | - Chin-San Wu
- Department of Applied Cosmetology, Kao Yuan University, Kaohsiung 82101, Taiwan.
| | - Jian Chen
- Material Corrosion and Protection Key Laboratory of Sichuan Province, College of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong 643000, China.
| | - Ruo Yao Wang
- Department of Molecular Science & Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
| | - Chaochin Su
- Department of Molecular Science & Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
| | - Wei-Song Hung
- Center for Membrane Technology, Chung Yuan University, Taoyuan 32023, Taiwan.
| | - Manuel De Guzman
- Center for Membrane Technology, Chung Yuan University, Taoyuan 32023, Taiwan.
| | - Maw-Cherng Suen
- Department of Fashion Business Administration, Lee-Ming Institute of Technology, Taishan, New Taipei City 24305, Taiwan.
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