1
|
Olăreț E, Dinescu S, Dobranici AE, Ginghină RE, Voicu G, Mihăilescu M, Curti F, Banciu DD, Sava B, Amarie S, Lungu A, Stancu IC, Mastalier BSM. Osteoblast responsive biosilica-enriched gelatin microfibrillar microenvironments. BIOMATERIALS ADVANCES 2024; 161:213894. [PMID: 38796956 DOI: 10.1016/j.bioadv.2024.213894] [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: 10/26/2023] [Revised: 02/09/2024] [Accepted: 05/13/2024] [Indexed: 05/29/2024]
Abstract
Engineering of scaffolds for bone regeneration is often inspired by the native extracellular matrix mimicking its composite fibrous structure. In the present study, we used low loadings of diatomite earth (DE) biosilica to improve the bone regeneration potential of gelatin electrospun fibrillar microenvironments. We explored the effect of increasing the DE content from 1 % to 3 % and 5 %, respectively, on the physico-chemical properties of the fibrous scaffolds denoted FG_DE1, FG_DE3, FG_DE5, regarding the aqueous media affinity, stability under simulated physiological conditions, morphology characteristics, and local mechanical properties at the surface. The presence of biosilica generated composite structures with lower swelling degrees and higher stiffness when compared to gelatin fibers. Increasing DE content led to higher Young modulus, while the stability of the protein matrix in PBS, at 37 °C, over 21 was significantly decreased by the presence of diatomite loadings. The best preosteoblast response was obtained for FG_DE3, with enhanced mineralization during the osteogenic differentiation when compared to the control sample without diatomite. 5 % DE in FG_DE5 proved to negatively influence cells' metabolic activity and morphology. Hence, the obtained composite microfibrillar scaffolds might find application as osteoblast-responsive materials for bone tissue engineering.
Collapse
Affiliation(s)
- Elena Olăreț
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Sorina Dinescu
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania; Research Institute of the University of Bucharest (ICUB), 050663 Bucharest, Romania
| | - Alexandra-Elena Dobranici
- Department of Biochemistry and Molecular Biology, University of Bucharest, 050095 Bucharest, Romania
| | - Raluca-Elena Ginghină
- Research and Innovation Center for CBRN Defense and Ecology, 041327 Bucharest, Romania
| | - Georgeta Voicu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania; Faculty of Medical Engineering, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Mona Mihăilescu
- Faculty of Medical Engineering, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania; Faculty of Applied Sciences, National University of Science and Technology Politehnica Bucharest, 060042 Bucharest, Romania
| | - Filis Curti
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania; Zentiva SA, 50, Theodor Pallady, 032266 Bucharest, Romania
| | - Daniel Dumitru Banciu
- Faculty of Medical Engineering, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | | | | | - Adriana Lungu
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania
| | - Izabela-Cristina Stancu
- Advanced Polymer Materials Group, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania; Faculty of Medical Engineering, National University of Science and Technology Politehnica Bucharest, 011061 Bucharest, Romania.
| | - Bogdan Stelian Manolescu Mastalier
- University of Medicine and Pharmacy Carol Davila, Bucharest, Romania; Department of General Surgery, Colentina Clinical Hospital, 072202 Bucharest, Romania
| |
Collapse
|
2
|
Wang L, Liu J, Shen Y, Yin Y, Ni Z, Xi J, Hu Y, Yuan Q. Preparation and Immobilization Mechanism on a Novel Composite Carrier PDA-CF/PUF to Improve Cells Immobilization and Xylitol Production. Foods 2024; 13:1911. [PMID: 38928852 PMCID: PMC11202654 DOI: 10.3390/foods13121911] [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: 03/06/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
The preparation of a novel composite carrier of polydopamine-modified carbon fiber/polyurethane foam (PDA-CF/PUF) was proposed to improve cell immobilization and the fermentation of xylitol, which is an important food sweetener and multifunctional food additive. Candida tropicalis was immobilized on the composite carrier by adsorption and covalent binding. The properties and immobilization mechanism of the composite carrier and its effect on immobilized cells were investigated. It showed that the modification of PDA enhanced the loading of CF on the PUF surface and the adhesion of cells on the composite carrier surface. Also, the biocompatibility of carriers to cells was improved. In addition, the introduction of PDA increased the active groups on the surface of the carrier, enhanced the hydrophilicity, promoted the cells immobilization, and increased the xylitol yield. It was also found that expression of the related gene XYL1 in cells was significantly increased after the immobilization of the PDA-CF/PUF composite carrier during the fermentation. The PDA-CF/PUF was an immobilized carrier with the excellent biocompatibility and immobilization performance, which has great development potential in the industrial production of xylitol.
Collapse
Affiliation(s)
- Le Wang
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Jianguang Liu
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Yan Shen
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Yanli Yin
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Zifu Ni
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Jun Xi
- College of Food Science and Engineering, Henan University of Technology, Zhengzhou 450001, China
| | - Yuansen Hu
- School of Biological Engineering, National Engineering Research Center of Wheat and Corn Further Processing, Henan University of Technology, Zhengzhou 450001, China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
3
|
Avinashi SK, Shweta, Bohra B, Mishra RK, Kumari S, Fatima Z, Hussain A, Saxena B, Kumar S, Banerjee M, Gautam CR. Fabrication of Novel 3-D Nanocomposites of HAp-TiC-h-BN-ZrO 2: Enhanced Mechanical Performances and In Vivo Toxicity Study for Biomedical Applications. ACS Biomater Sci Eng 2024; 10:2116-2132. [PMID: 38498674 DOI: 10.1021/acsbiomaterials.3c01478] [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] [Indexed: 03/20/2024]
Abstract
Due to excellent biocompatibility, bioactivities, and osteoconductivity, hydroxyapatite (HAp) is considered as one of the most suitable biomaterials for numerous biomedical applications. Herein, HAp was fabricated using a bottom-up approach, i.e., a wet chemical method, and its composites with TiC, h-BN, and ZrO2 were fabricated by a solid-state reaction method with enhanced mechanical and biological performances. Structural, surface morphology, and mechanical behavior of the fabricated composites were characterized using various characterization techniques. Furthermore, transmission electron microscopy study revealed a randomly oriented rod-like morphology, with the length and width of these nanorods ranging from 78 to 122 and from 9 to 13 nm. Moreover, the mechanical characterizations of the composite HZBT4 (80HAp-10TiC-5h-BN-5ZrO2) reveal a very high compressive strength (246 MPa), which is comparable to that of the steel (250 MPa), fracture toughness (14.78 MPa m1/2), and Young's modulus (1.02 GPa). In order to check the biocompatibility of the composites, numerous biological tests were also performed on different body organs of healthy adult Sprague-Dawley rats. This study suggests that the composite HZBT4 could not reveal any significant influence on the hematological, serum biochemical, and histopathological parameters. Hence, the fabricated composite can be used for several biological applications, such as bone implants, bone grafting, and bone regeneration.
Collapse
Affiliation(s)
- Sarvesh Kumar Avinashi
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
| | - Shweta
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
| | - Bhavna Bohra
- Department of Pharmacology, Institute of Pharmacy, Nirma University, S.G. Highway, Ahmedabad 382481, India
| | - Rajat Kumar Mishra
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
| | - Savita Kumari
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
| | - Zaireen Fatima
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
- Department of Physics, Integral University, Lucknow 226026, India
| | - Ajaz Hussain
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
| | - Bhagawati Saxena
- Department of Pharmacology, Institute of Pharmacy, Nirma University, S.G. Highway, Ahmedabad 382481, India
| | - Saurabh Kumar
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow 226007, India
| | - Monisha Banerjee
- Molecular and Human Genetics Laboratory, Department of Zoology, University of Lucknow, Lucknow 226007, India
| | - Chandki Ram Gautam
- Advanced Glass and Glass Ceramics Research Laboratory, Department of Physics, University of Lucknow, Lucknow 226007, India
| |
Collapse
|
4
|
Koç-Demir A, Elçin AE, Elçin YM. Magnetic biocomposite scaffold based on decellularized tendon ECM and MNP-deposited halloysite nanotubes: physicochemical, thermal, rheological, mechanical and in vitrobiological evaluations. Biomed Mater 2024; 19:035027. [PMID: 38537375 DOI: 10.1088/1748-605x/ad38ab] [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: 10/18/2023] [Accepted: 03/26/2024] [Indexed: 04/06/2024]
Abstract
The development of new three-dimensional biomaterials with advanced versatile properties is critical to the success of tissue engineering (TE) applications. Here, (a) bioactive decellularized tendon extracellular matrix (dECM) with a sol-gel transition feature at physiological temperature, (b) halloysite nanotubes (HNT) with known mechanical properties and bioactivity, and (c) magnetic nanoparticles (MNP) with superparamagnetic and osteogenic properties were combined to develop a new scaffold that could be used in prospective bone TE applications. Deposition of MNPs on HNTs resulted in magnetic nanostructures without agglomeration of MNPs. A completely cell-free, collagen- and glycosaminoglycan- rich dECM was obtained and characterized. dECM-based scaffolds incorporated with 1%, 2% and 4% MNP-HNT were analysed for their physical, chemical, andin vitrobiological properties. Fourier-transform infrared spectroscopy, x-ray powder diffractometry and vibrating sample magnetometry analyses confirmed the presence of dECM, HNT and MNP in all scaffold types. The capacity to form apatite layer upon incubation in simulated body fluid revealed that dECM-MNP-HNT is a bioactive material. Combining dECM with MNP-HNT improved the thermal stability and compressive strength of the macroporous scaffolds upto 2% MNP-HNT.In vitrocytotoxicity and hemolysis experiments showed that the scaffolds were essentially biocompatible. Human bone marrow mesenchymal stem cells adhered and proliferated well on the macroporous constructs containing 1% and 2% MNP-HNT; and remained metabolically active for at least 21 din vitro. Collectively, the findings support the idea that magnetic nanocomposite dECM scaffolds containing MNP-HNT could be a potential template for TE applications.
Collapse
Affiliation(s)
- Aysel Koç-Demir
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Ayşe Eser Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
| | - Yaşar Murat Elçin
- Tissue Engineering, Biomaterials and Nanobiotechnology Laboratory, Ankara University Faculty of Science, and Ankara University Stem Cell Institute, Ankara, Turkey
- Biovalda Health Technologies, Inc., Ankara, Turkey
| |
Collapse
|
5
|
Yang J, Xiao W, Wu X, Zha Y, Liu S. Preparation of GO/Diatomite/Polyacrylonitrile Functional Separator and Its Application in Li-S Batteries. MATERIALS (BASEL, SWITZERLAND) 2024; 17:789. [PMID: 38399040 PMCID: PMC10890147 DOI: 10.3390/ma17040789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 01/30/2024] [Accepted: 02/02/2024] [Indexed: 02/25/2024]
Abstract
Lithium-sulfur (Li-S) batteries have received extensive attention due to their numerous advantages, including a high theoretical specific capacity, high energy density, abundant reserves of sulfur in cathode materials, and low cost. Li-S batteries also face several challenges, such as the insulating properties of sulfur, volume expansion during charging and discharging processes, polysulfide shuttling, and lithium dendritic crystal growth. In this study, a composite of a porous multi-site diatomite-loaded graphene oxide material and a PAN fiber membrane is developed to obtain a porous and high-temperature-resistant GO/diatomite/polyacrylonitrile functional separator (GO/DE/PAN) to improve the electrochemical performance of Li-S batteries. The results show that the use of GO/DE/PAN helps to inhibit lithium phosphorus sulfide (LPS) shuttling and improve the electrolyte wetting of the separator as well as the thermal stability of the battery. The initial discharge capacity of the battery using GO/DE/PAN is up to 964.7 mAh g-1 at 0.2 C, and after 100 cycles, the reversible capacity is 683 mAh g-1 with a coulombic efficiency of 98.8%. The improved electrochemical performance may be attributed to the porous structure of diatomite and the layered composite of graphene oxide, which can combine physical adsorption and spatial site resistance as well as chemical repulsion to inhibit the shuttle effect of LPS. The results show that GO/DE/PAN has great potential for application in Li-S batteries to improve their electrochemical performance.
Collapse
Affiliation(s)
- Jing Yang
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (J.Y.); (W.X.); (X.W.)
| | - Wenjie Xiao
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (J.Y.); (W.X.); (X.W.)
| | - Xiaoyu Wu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (J.Y.); (W.X.); (X.W.)
| | - Yitao Zha
- School of Materials Science and Engineering, Central South University, Changsha 410083, China;
| | - Sainan Liu
- School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China; (J.Y.); (W.X.); (X.W.)
| |
Collapse
|
6
|
da Luz Belo F, Vasconcelos EV, Pinheiro MA, da Cruz Barbosa Nascimento D, Passos MF, da Silva ACR, Dos Reis MAL, Monteiro SN, Brígida RTSS, Rodrigues APD, Candido VS. Additive manufacturing of poly (lactic acid)/hydroxyapatite/carbon nanotubes biocomposites for fibroblast cell proliferation. Sci Rep 2023; 13:20387. [PMID: 37990057 PMCID: PMC10663481 DOI: 10.1038/s41598-023-47413-0] [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: 04/23/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023] Open
Abstract
Bone tissue is one of the most important in the human body. In this study, scaffolds of poly (lactic acid) PLA reinforced with hydroxyapatite (HA) and carbon nanotubes (CNT) were manufactured, evaluating their mechanical and biological properties. HA was synthesized by wet method and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The scaffolds were produced using additive manufacturing and characterized by optical microscopy, SEM, thermogravimetric analysis (TGA), Raman spectroscopy and biological tests. The SEM results showed that the PLA surface was affected by the incorporation of CNT. TG showed that the incorporation of HA into the polymer matrix compromised the thermal stability of PLA. On the other hand, the incorporation of CNT to the polymer and the impregnation with HA on the surface by thermal effect increased the stability of PLA/CNT scaffolds. Raman spectra indicated that HA impregnation on the surface did not modify the polymer or the ceramic. In the compression tests, PLA and PLA/CNT scaffolds displayed the best compressive strength. In the biological tests, more than 85% of the cells remained viable after 48 h of incubation with all tested scaffolds and groups with CNT in the composition disclosing the best results.
Collapse
Affiliation(s)
- Francilene da Luz Belo
- Engineering of Natural Resources of the Amazon Program, Federal University of Pará-UFPA, Belém, Brazil
| | | | | | | | - Marcele Fonseca Passos
- Materials Science and Engineering Program, Federal University of Pará-UFPA, Belém, Brazil
| | | | | | - Sérgio Neves Monteiro
- Materials Science Program, Military Institute of Engineering-IME, Rio de Janeiro, Brazil
| | | | | | - Verônica Scarpini Candido
- Engineering of Natural Resources of the Amazon Program, Federal University of Pará-UFPA, Belém, Brazil.
| |
Collapse
|
7
|
Mumtaz N, Akram N, Zia KM, Saeed M, Usman M. Fabrication, Thermo-Mechanical, and Morphological Characterization of Hydroxyapatite-Reinforced Polyurethane Biocomposites as Dye Adsorbent for Effluent. ACS OMEGA 2023; 8:33310-33320. [PMID: 37744844 PMCID: PMC10515338 DOI: 10.1021/acsomega.3c02371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 08/16/2023] [Indexed: 09/26/2023]
Abstract
Petrochemical costs, limited fossil fuel reserves, and concerns about greenhouse gas emissions have raised interest in developing renewable approaches for synthesizing biobased polyurethanes. This study aims to solve these problems by making nanocrystalline hydroxyapatite (HA) reinforcement from waste chicken eggshells and adding it to polyurethane synthesis through in situ polymerization. The novelty of the research lies in the utilization of HA as a reinforcement material and renewable resources for polyurethane production. The results confirm that HA was successfully added to the polyurethane backbone. Fourier transform infrared (FTIR) analysis confirmed that the NCO groups were changed to urethane linkages. TGA examination demonstrated that the samples exhibited thermal stability up to 457 °C with a mass loss of 61%, indicating enhanced thermal stability. DMA measurements showed improved mechanical properties of the synthesized polyurethanes, with storage modulus (E'), complex modulus (E*), and compliance complex (D*) values of 0.177, 22.522, and 0.660 MPa-1, respectively. SEM analysis confirmed the homogeneous surface and well-dispersed HA reinforcement. Swelling characteristics revealed an optimum absorption of 30% H2O, 35% CH3OH, and 45% CCl4. Polyurethane composites exhibited significant chemical resistance and hydrolytic stability in acidic and basic media. Additionally, the composites demonstrated efficient adsorption of methyl orange from wastewater, with the PUHCI series achieving a maximum adsorption capacity of 85.50 mg/g under optimal conditions of 0.030 g/mL dose, 45 °C temperature, 2.5 h contact time, and pH 6.0..
Collapse
Affiliation(s)
- Nida Mumtaz
- Department of Chemistry, Government
College University Faisalabad, Faisalabad 38000, Pakistan
| | - Nadia Akram
- Department of Chemistry, Government
College University Faisalabad, Faisalabad 38000, Pakistan
| | - Khalid Mahmood Zia
- Department of Chemistry, Government
College University Faisalabad, Faisalabad 38000, Pakistan
| | - Muhammad Saeed
- Department of Chemistry, Government
College University Faisalabad, Faisalabad 38000, Pakistan
| | - Muhammad Usman
- Department of Chemistry, Government
College University Faisalabad, Faisalabad 38000, Pakistan
| |
Collapse
|
8
|
Wang L, Zhao W, Zhao Y, Li W, Wang G, Zhang Q. Enzymatically-mineralized double-network hydrogels with ultrahigh mechanical strength, toughness, and stiffness. Theranostics 2023; 13:673-684. [PMID: 36632214 PMCID: PMC9830447 DOI: 10.7150/thno.77417] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2022] [Accepted: 12/07/2022] [Indexed: 01/04/2023] Open
Abstract
Background: Synthetic hydrogels are commonly mechanically weak which limits the scope of their applications. Methods: In this study, we synthesized an organic-inorganic hybrid hydrogel with ultrahigh strength, stiffness, and toughness via enzyme-induced mineralization of calcium phosphate in a double network of bacterial cellulose nanofibers and alginate-Ca2+. Results: Cellulose nanofibers formed the first rigid network via hydrogen binding and templated the deposition of calcium phosphate, while alginate-Ca2+ formed the second energy-dissipating network via ionic interaction. The two networks created a brick-mortar-like structure, in which the "tortuous fracture path" mechanism by breaking the interlaced calcium phosphate-coated bacterial cellulose nanofibers and the hysteresis by unzipping the ionic alginate-Ca2+ network made a great contribution to the mechanical properties of the hydrogels. Conclusion: The optimized hydrogel exhibited ultrahigh fracture stress of 48 MPa, Young's modulus of 1329 MPa, and fracture energy of 3013 J/m2, which are barely possessed by the reported synthetic hydrogels. Finally, the hydrogel represented potential use in subchondral bone defect repair in an ex vivo model.
Collapse
Affiliation(s)
- Li Wang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, P.R. China
| | - Wei Zhao
- Department of Stomatology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, P. R. China
| | - Yining Zhao
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, P.R. China
| | - Wei Li
- Department of Stomatology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, P. R. China.,✉ Corresponding authors: Q. Z. (E-mail: ); G. W. (E-mail: ); W. L. (E-mail: li_wei_sh@hotmail. com)
| | - Guodong Wang
- Department of Stomatology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, P. R. China.,✉ Corresponding authors: Q. Z. (E-mail: ); G. W. (E-mail: ); W. L. (E-mail: li_wei_sh@hotmail. com)
| | - Qiang Zhang
- Department of Stomatology, Changzheng Hospital, Naval Medical University, Shanghai, 200003, P. R. China.,Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, 200241, P.R. China.,✉ Corresponding authors: Q. Z. (E-mail: ); G. W. (E-mail: ); W. L. (E-mail: li_wei_sh@hotmail. com)
| |
Collapse
|
9
|
Perera HJ, Goyal A, Alhassan SM, Banu H. Biobased Castor Oil-Based Polyurethane Foams Grafted with Octadecylsilane-Modified Diatomite for Use as Eco-Friendly and Low-Cost Sorbents for Crude Oil Clean-Up Applications. Polymers (Basel) 2022; 14:polym14235310. [PMID: 36501710 PMCID: PMC9739393 DOI: 10.3390/polym14235310] [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: 10/26/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022] Open
Abstract
Herein we report the synthesis and characterization of novel castor oil-based polyurethane (PU) foam functionalized with octadecyltrichlorosilane (C18)-modified diatomaceous earth (DE) particles, exhibiting superior hydrophobicity and oil adsorption, and poor water absorption, for use in effective clean-up of crude oil spillage in water bodies. High-performance and low-cost sorbents have a tremendous attraction in oil spill clean-up applications. Recent studies have focused on the use of castor oil as a significant polyol that can be used as a biodegradable and eco-friendly raw material for the synthesis of PU. However, biobased in-house synthesis of foam modified with C18-DE particles has not yet been reported. This study involves the synthesis of PU using castor oil, further modification of castor oil-based PU using C18 silane, characterization studies and elucidation of oil adsorption capacity. The FTIR analysis confirmed the fusion of C18 silane particles inside the PU skeleton by adding the new functional group, and the XRD study signified the inclusion of crystalline peaks in amorphous pristine PU foam owing to the silane cross-link structure. Thermogravimetric analysis indicated improvement in thermal stability and high residual content after chemical modification with alkyl chain moieties. The SEM and EDX analyses showed the surface's roughness and the incorporation of inorganic and organic elements into pristine PU foam. The contact angle analysis showed increased hydrophobicity of the modified PU foams treated with C18-DE particles. The oil absorption studies showed that the C18-DE-modified PU foam, in comparison with the unmodified one, exhibited a 2.91-fold increase in the oil adsorption capacity and a 3.44-fold decrease in the water absorbing nature. From these studies, it is understood that this novel foam can be considered as a potential candidate for cleaning up oil spillage on water bodies.
Collapse
Affiliation(s)
- Helanka J. Perera
- Maths and Natural Science, Abu Dhabi Women’s Campus, Higher Colleges of Technology, Abu Dhabi P.O. Box 25026, United Arab Emirates
- Correspondence:
| | - Anjali Goyal
- Department of Chemical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Saeed M. Alhassan
- Department of Chemical Engineering, Khalifa University, Abu Dhabi P.O. Box 127788, United Arab Emirates
| | - Hussain Banu
- Maths and Natural Science, Abu Dhabi Women’s Campus, Higher Colleges of Technology, Abu Dhabi P.O. Box 25026, United Arab Emirates
| |
Collapse
|
10
|
Decellularized tendon-based heparinized nanocomposite scaffolds for prospective regenerative applications: Chemical, physical, thermal, mechanical and in vitro biological evaluations. J Mech Behav Biomed Mater 2022; 134:105387. [DOI: 10.1016/j.jmbbm.2022.105387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 07/12/2022] [Accepted: 07/17/2022] [Indexed: 11/19/2022]
|
11
|
Biodegradable and Biocompatible Thermoplastic Poly(Ester-Urethane)s Based on Poly(ε-Caprolactone) and Novel 1,3-Propanediol Bis(4-Isocyanatobenzoate) Diisocyanate: Synthesis and Characterization. Polymers (Basel) 2022; 14:polym14071288. [PMID: 35406162 PMCID: PMC9002640 DOI: 10.3390/polym14071288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/17/2022] [Accepted: 03/18/2022] [Indexed: 11/24/2022] Open
Abstract
A series of non-toxic biodegradable and biocompatible polyurethanes bearing p-aminobenzoate moieties are presented. The introduction of this attractive motif was carried out by the synthesis of a novel isocyanate. These biodegradable polymers were chemically and physically characterized by several techniques and methods including bioassay and water uptake measurements. The molecular weight of the soft segment (poly-ε-caprolactone, PCL) and hard segment crystallinity dictated the mechanical behavior and water uptake. The behavior of short PCL-based polyurethanes was elastomeric, whilst increasing the molecular weight of the soft segment led to plastic polyurethanes. Water uptake was hindered for long PCL due to the crystallization of the soft segment within the polyurethane matrix. Furthermore, two different types of chain extender, hydrolyzable and non-hydrolyzable, were also evaluated: polyurethanes based on hydrolyzable chain extenders reached higher molecular weights, thus leading to a better performance than their unhydrolyzable counterparts. The good cell adhesion and cytotoxicity results demonstrated the cell viability of human osteoblasts on the surfaces of these non-toxic biodegradable polyurethanes.
Collapse
|
12
|
Sobierajska P, Serwotka-Suszczak A, Targonska S, Szymanski D, Marycz K, Wiglusz RJ. Synergistic Effect of Toceranib and Nanohydroxyapatite as a Drug Delivery Platform-Physicochemical Properties and In Vitro Studies on Mastocytoma Cells. Int J Mol Sci 2022; 23:ijms23041944. [PMID: 35216060 PMCID: PMC8875076 DOI: 10.3390/ijms23041944] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 02/07/2023] Open
Abstract
A new combination of Toceranib (Toc; 5-[(5Z)-(5-Fluoro-2-oxo-1,2-dihydro-3H-indol-3-ylidene)methyl]-2,4-dimethyl-N-[2-(pyrrolidin-1-yl)ethyl]-1H-pyrrole-3-carboxamide) with nanohydroxyapatite (nHAp) was proposed as an antineoplastic drug delivery system. Its physicochemical properties were determined as crystallinity, grain size, morphology, zeta potential and hydrodynamic diameter as well as Toceranib release. The crystalline nanorods of nHAp were synthesised by the co-precipitation method, while the amorphous Toceranib was obtained by its conversion from the crystalline form during nHAp–Toc preparation. The surface interaction between both compounds was confirmed using Fourier-transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV–Vis) and scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS). The nHAp–Toc showed a slower and prolonged release of Toceranib. The release behaviour was affected by hydrodynamic size, surface interaction and the medium used (pH). The effectiveness of the proposed platform was tested by comparing the cytotoxicity of the drug combined with nHAp against the drug itself. The compounds were tested on NI-1 mastocytoma cells using the Alamar blue colorimetric technique. The obtained results suggest that the proposed platform shows high efficiency (the calculated IC50 is 4.29 nM), while maintaining the specificity of the drug alone. Performed analyses confirmed that nanohydroxyapatite is a prospective drug carrier and, when Toceranib-loaded, may be an idea worth developing with further research into therapeutic application in the treatment of canine mast cell tumour.
Collapse
Affiliation(s)
- Paulina Sobierajska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
- Correspondence: (P.S.); (R.J.W.)
| | - Anna Serwotka-Suszczak
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 27B, 50-375 Wroclaw, Poland; (A.S.-S.); (K.M.)
| | - Sara Targonska
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
| | - Damian Szymanski
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
| | - Krzysztof Marycz
- Department of Experimental Biology, Faculty of Biology and Animal Science, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 27B, 50-375 Wroclaw, Poland; (A.S.-S.); (K.M.)
| | - Rafal J. Wiglusz
- Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okolna 2, 50-422 Wroclaw, Poland; (S.T.); (D.S.)
- Correspondence: (P.S.); (R.J.W.)
| |
Collapse
|
13
|
Kumar L, Ahuja D. 3D porous polyurethane (PU)/ triethanolamine modified hydroxyapatite (TEA-HA) nano composite for enhanced bioactivity for biomedical applications. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02861-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|