1
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Song C, Rutledge GC. Three-Dimensional Imaging of Emulsion Separation through Liquid-Infused Membranes Using Confocal Laser Scanning Microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:11468-11480. [PMID: 37540768 DOI: 10.1021/acs.langmuir.3c01477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2023]
Abstract
The removal of emulsified oils from water has always been a challenge due to the kinetic stability resulting from the small droplet size and the presence of stabilizing agents. Membrane technology can treat such mixtures, but fouling of the membrane leads to dramatic reductions in the process capacity. Liquid-infused membranes (LIMs) can potentially resolve the issue of fouling. However, their low permeate flux compared with conventional hydrophilic membranes remains a limitation. To gain insight into the mechanism of transport, we use 3D images acquired by confocal laser scanning microscopy (CLSM) to reconstruct the sequence of events occurring during startup and operation of the LIM for removal of dispersed oil from oil-in-water emulsions. We find evidence for coalescence of oil droplets on the surface of and formation of oil channels within the LIM. Using image analysis, we find that the rate at which oil channels are formed within the membrane and the number of channels ultimately govern the permeate flux of oil through the LIMs. Oil concentration in the feed affects the rate of coalescence of oil on the surface of the LIM, which, in turn, affects the channel formation dynamics. The channel formation dynamics also depend on the viscosity of the infused liquid and the operating pressure. A higher affinity to the pore wall for infused liquid than permeating liquid is essential to antifouling behavior. Overall, this work offers insight into the selective permeation of a dispersed liquid phase through a LIM.
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Affiliation(s)
- Chen Song
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Gregory C Rutledge
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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2
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Duan X, Li N, Cooper DML, Ding XF, Chen X, Zhu N. Low-density tissue scaffold imaging by synchrotron radiation propagation-based imaging computed tomography with helical acquisition mode. JOURNAL OF SYNCHROTRON RADIATION 2023; 30:417-429. [PMID: 36891855 PMCID: PMC10000810 DOI: 10.1107/s1600577523000772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 01/29/2023] [Indexed: 06/18/2023]
Abstract
Visualization of low-density tissue scaffolds made from hydrogels is important yet challenging in tissue engineering and regenerative medicine (TERM). For this, synchrotron radiation propagation-based imaging computed tomography (SR-PBI-CT) has great potential, but is limited due to the ring artifacts commonly observed in SR-PBI-CT images. To address this issue, this study focuses on the integration of SR-PBI-CT and helical acquisition mode (i.e. SR-PBI-HCT) to visualize hydrogel scaffolds. The influence of key imaging parameters on the image quality of hydrogel scaffolds was investigated, including the helical pitch (p), photon energy (E) and the number of acquisition projections per rotation/revolution (Np), and, on this basis, those parameters were optimized to improve image quality and to reduce noise level and artifacts. The results illustrate that SR-PBI-HCT imaging shows impressive advantages in avoiding ring artifacts with p = 1.5, E = 30 keV and Np = 500 for the visualization of hydrogel scaffolds in vitro. Furthermore, the results also demonstrate that hydrogel scaffolds can be visualized using SR-PBI-HCT with good contrast while at a low radiation dose, i.e. 342 mGy (voxel size of 26 µm, suitable for in vivo imaging). This paper presents a systematic study on hydrogel scaffold imaging using SR-PBI-HCT and the results reveal that SR-PBI-HCT is a powerful tool for visualizing and characterizing low-density scaffolds with a high image quality in vitro. This work represents a significant advance toward the non-invasive in vivo visualization and characterization of hydrogel scaffolds at a suitable radiation dose.
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Affiliation(s)
- Xiaoman Duan
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
| | - Naitao Li
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
| | - David M. L. Cooper
- Department of Anatomy, Physiology and Pharmacology, College of Medicine, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
| | - Xiao Fan Ding
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
| | - Xiongbiao Chen
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
| | - Ning Zhu
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
- Department of Chemical and Biological Engineering, College of Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
- Canadian Light Source, Saskatoon, SK S7N 2V3, Canada
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Lopez Marquez A, Gareis IE, Dias FJ, Gerhard C, Lezcano MF. Methods to Characterize Electrospun Scaffold Morphology: A Critical Review. Polymers (Basel) 2022; 14:polym14030467. [PMID: 35160457 PMCID: PMC8839183 DOI: 10.3390/polym14030467] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/06/2022] [Accepted: 01/19/2022] [Indexed: 12/10/2022] Open
Abstract
Electrospun scaffolds can imitate the hierarchical structures present in the extracellular matrix, representing one of the main concerns of modern tissue engineering. They are characterized in order to evaluate their capability to support cells or to provide guidelines for reproducibility. The issues with widely used methods for morphological characterization are discussed in order to provide insight into a desirable methodology for electrospun scaffold characterization. Reported methods include imaging and physical measurements. Characterization methods harbor inherent limitations and benefits, and these are discussed and presented in a comprehensive selection matrix to provide researchers with the adequate tools and insights required to characterize their electrospun scaffolds. It is shown that imaging methods present the most benefits, with drawbacks being limited to required costs and expertise. By making use of more appropriate characterization, researchers will avoid measurements that do not represent their scaffolds and perhaps might discover that they can extract more characteristics from their scaffold at no further cost.
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Affiliation(s)
- Alex Lopez Marquez
- Faculty of Engineering and Health, University of Applied Sciences and Arts, 37085 Gottingen, Germany; (A.L.M.); (C.G.)
| | - Iván Emilio Gareis
- Laboratorio de Cibernética, Departamento de Bioingeniería, Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Oro Verde 3100, Argentina;
| | - Fernando José Dias
- Research Centre for Dental Sciences CICO, Department of Integral Adults Dentistry, Dental School, Universidad de La Frontera, Temuco 4811230, Chile;
| | - Christoph Gerhard
- Faculty of Engineering and Health, University of Applied Sciences and Arts, 37085 Gottingen, Germany; (A.L.M.); (C.G.)
| | - María Florencia Lezcano
- Laboratorio de Cibernética, Departamento de Bioingeniería, Facultad de Ingeniería, Universidad Nacional de Entre Ríos, Oro Verde 3100, Argentina;
- Research Centre for Dental Sciences CICO, Department of Integral Adults Dentistry, Dental School, Universidad de La Frontera, Temuco 4811230, Chile;
- Correspondence:
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Duan X, Li N, Chen X, Zhu N. Characterization of Tissue Scaffolds Using Synchrotron Radiation Microcomputed Tomography Imaging. Tissue Eng Part C Methods 2021; 27:573-588. [PMID: 34670397 DOI: 10.1089/ten.tec.2021.0155] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Distinguishing from other traditional imaging, synchrotron radiation microcomputed tomography (SR-μCT) imaging allows for the visualization of three-dimensional objects of interest in a nondestructive and/or in situ way with better spatial resolution, deep penetration, relatively fast speed, and/or high contrast. SR-μCT has been illustrated promising for visualizing and characterizing tissue scaffolds for repairing or replacing damaged tissue or organs in tissue engineering (TE), which is of particular advance for longitudinal monitoring and tracking the success of scaffolds once implanted in animal models and/or human patients. This article presents a comprehensive review on recent studies of characterization of scaffolds based on SR-μCT and takes scaffold architectural properties, mechanical properties, degradation, swelling and wettability, and biological properties as five separate sections to introduce SR-μCT wide applications. We also discuss and highlight the unique opportunities of SR-μCT in various TE applications; conclude this article with the suggested future research directions, including the prospective applications of SR-μCT, along with its challenges and methods for improvement in the field of TE.
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Affiliation(s)
- Xiaoman Duan
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Naitao Li
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Xiongbiao Chen
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, Canada
- Department of Mechanical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, Canada
| | - Ning Zhu
- Division of Biomedical Engineering, College of Engineering, University of Saskatchewan, Saskatoon, Canada
- Department of Chemical and Biological Engineering, College of Engineering, University of Saskatchewan, Saskatoon, Canada
- Canadian Light Source, Saskatoon, Canada
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5
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Santos de Oliveira C, González AT, Hedtke T, Kürbitz T, Heilmann A, Schmelzer CEH, Martins de S E Silva J. Direct three-dimensional imaging for morphological analysis of electrospun fibers with laboratory-based Zernike X-ray phase-contrast computed tomography. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 115:111045. [PMID: 32600682 DOI: 10.1016/j.msec.2020.111045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 04/30/2020] [Accepted: 05/01/2020] [Indexed: 10/24/2022]
Abstract
Electrospinning is a well-established and widely used method for the production of protein-based fibrous biomaterials. The visualization of the morphology and the characterization of sample features related to the three-dimensional (3D) structure, like the porosity and fibers thickness, is crucial for the design and fabrication of tailor-made and application-optimized materials. Here, we evaluated the benefits of using 3D X-ray imaging in a laboratory setup with a resolution in the sub-micrometer range for the characterization of electrospun gelatin fibrous mats. We used phase-contrast X-ray computed tomography at the nanoscale (nano-CT) for the evaluation of the time-course morphological changes of the mats induced by chemical cross-linking of the gelatin fibers. We present an image processing protocol that enables the segmentation of the fibers and quantification of the mats porosity, the analysis of the shape and size of the pores, and of the fibers thickness and orientation. We compared the results obtained from the processed nano-CT data with those obtained with the conventional methods used for the characterization of electrospun fibrous materials, and we discuss the advantages and limitations of each method when applied to gelatin electrospun samples. Our results reveal that the use of phase-contrast nano-CT provides quick additional and relevant information for the characterization of fibrous mats and, thus, provides beneficial insights for the design and fabrication of novel fibrous materials.
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Affiliation(s)
| | | | - Tobias Hedtke
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany; Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany
| | | | - Andreas Heilmann
- Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany; Anhalt University of Applied Sciences, Köthen, Germany
| | - Christian E H Schmelzer
- Institute of Pharmacy, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany; Fraunhofer Institute for Microstructure of Materials and Systems IMWS, Halle (Saale), Germany.
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6
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Bongiovanni Abel S, Montini Ballarin F, Abraham GA. Combination of electrospinning with other techniques for the fabrication of 3D polymeric and composite nanofibrous scaffolds with improved cellular interactions. NANOTECHNOLOGY 2020; 31:172002. [PMID: 31931493 DOI: 10.1088/1361-6528/ab6ab4] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The development of three-dimensional (3D) scaffolds with physical and chemical topological cues at the macro-, micro-, and nanometer scale is urgently needed for successful tissue engineering applications. 3D scaffolds can be manufactured by a wide variety of techniques. Electrospinning technology has emerged as a powerful manufacturing technique to produce non-woven nanofibrous scaffolds with very interesting features for tissue engineering products. However, electrospun scaffolds have some inherent limitations that compromise the regeneration of thick and complex tissues. By integrating electrospinning and other fabrication technologies, multifunctional 3D fibrous assemblies with micro/nanotopographical features can be created. The proper combination of techniques leads to materials with nano and macro-structure, allowing an improvement in the biological performance of tissue-engineered constructs. In this review, we focus on the most relevant strategies to produce electrospun polymer/composite scaffolds with 3D architecture. A detailed description of procedures involving physical and chemical agents to create structures with large pores and 3D fiber assemblies is introduced. Finally, characterization and biological assays including in vitro and in vivo studies of structures intended for the regeneration of functional tissues are briefly presented and discussed.
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Affiliation(s)
- Silvestre Bongiovanni Abel
- Research Institute for Materials Science and Technology, INTEMA (UNMdP-CONICET). Av. Colón 10850, B7606BWV, Mar del Plata, Argentina
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7
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Domaschke S, Morel A, Kaufmann R, Hofmann J, Rossi RM, Mazza E, Fortunato G, Ehret AE. Predicting the macroscopic response of electrospun membranes based on microstructure and single fibre properties. J Mech Behav Biomed Mater 2020; 104:103634. [DOI: 10.1016/j.jmbbm.2020.103634] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 12/31/2019] [Accepted: 01/08/2020] [Indexed: 01/29/2023]
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8
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Lin YM, Song C, Rutledge GC. Direct Three-Dimensional Visualization of Membrane Fouling by Confocal Laser Scanning Microscopy. ACS APPLIED MATERIALS & INTERFACES 2019; 11:17001-17008. [PMID: 31034210 DOI: 10.1021/acsami.9b01770] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Membrane-based separation is an important technique for removing emulsified oil from water. However, the mechanisms of fouling are complex because of the deformability and potential for coalescence and break-up of the oil droplets. Here, we report for the first time direct, three-dimensional (3D) visualization of oil droplets on electrospun fiber microfiltration membranes after a period of membrane-based separation of oil-in-water emulsions. High-resolution 3D images were acquired by a dual-channel confocal laser scanning microscopy (CLSM) technique in which both the fibers and the oil (dodecane) were fluorescently labeled. The morphology of dodecane as the foulant was observed for two different types of fibers, an oleophobic nylon (PA6(3)T), and oleophilic polyvinylidene fluoride (PVDF). Through direct visualization, the rejected oil was found to form droplets of clam-shell shape on the PA6(3)T fibers, whereas the oil tended to wet the PVDF fibers and spread across the membrane. The morphology was also analyzed as a function of separation time (i.e., "4D" imaging), as the oil accumulated within and upon the membranes. The observations are qualitatively consistent with a transition from blocking of individual pores in the membrane to coalescence of oil droplets into coherent liquid films with increasing filtration time. Analysis of permeate flux using blocking filtration models corroborate the transition of fouling modes indicated by the 3D images. This direct, 3D visualization CLSM technique is a powerful tool for characterizing the mechanisms of fouling in membranes used for liquid emulsion separations.
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9
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Preparation of gentamicin sulfate eluting fiber mats by emulsion and by suspension electrospinning. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:86-93. [PMID: 30423773 DOI: 10.1016/j.msec.2018.09.019] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 08/20/2018] [Accepted: 09/06/2018] [Indexed: 12/22/2022]
Abstract
This work investigates the immobilization of the antibiotic gentamicin sulfate (GS) in electrospun fiber mats composed of poly(lactic acid) (PLA), poly(ε-caprolactone) (PCL) and the copolymer poly(lactic-co-glycolic acid) (PLGA). Since GS is highly water soluble but weakly soluble in the organic solvents commonly used in the electrospinning process, two methods of immobilization were investigated: by suspension electrospinning, in which GS particles were directly dispersed in the polymeric organic solutions, and by emulsion electrospinning, in which GS was solubilized in an aqueous phase that was then dispersed in the organic polymeric solution containing the surfactant SPAN80. Fibers with distinct diameters and morphologies were obtained for the different methods and compositions. Contrary to the fibers prepared by suspension electrospinning, emulsion electrospinning based fibers exhibited an excellent wettability, allegedly due to the effect of the surfactant SPAN80. Despite the differences between both methods the produced mats presented similar GS release profiles, with a considerable burst release in the first 8 h followed by a gradual release of the remaining drug during the next 4-6 days. Finally, all GS loaded fiber mats proved to have an antibacterial effect against the bacterial strain Staphylococcus aureus.
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10
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Li H, Zhang H, Zhang F, Li X, Legere S, Ni Y. Determination of Interfiber Bonded Area Based on the Confocal Laser Scanning Microscopy Technique. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.7b04784] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hailong Li
- Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Hongjie Zhang
- Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
- Shandong Huatai Paper Industry Co. Ltd., Huatai Group, Dongying, Shandong 257335, China
| | - Fengshan Zhang
- Shandong Huatai Paper Industry Co. Ltd., Huatai Group, Dongying, Shandong 257335, China
| | - Xiaoliang Li
- Shandong Huatai Paper Industry Co. Ltd., Huatai Group, Dongying, Shandong 257335, China
| | - Sarah Legere
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
| | - Yonghao Ni
- Tianjin Key Lab of Pulp & Paper, Tianjin University of Science & Technology, Tianjin 300457, China
- Department of Chemical Engineering, University of New Brunswick, Fredericton, NB E3B 5A3, Canada
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11
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12
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Peng Y, Jin X, Zheng Y, Han D, Liu K, Jiang L. Direct Imaging of Superwetting Behavior on Solid-Liquid-Vapor Triphase Interfaces. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29. [PMID: 28869679 DOI: 10.1002/adma.201703009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/17/2017] [Indexed: 05/11/2023]
Abstract
A solid-liquid-vapor interface dominated by a three-phase contact line usually serves as an active area for interfacial reactions and provides a vital clue to surface behavior. Recently, direct imaging of the triphase interface of superwetting interfaces on the microscale/nanoscale has attracted broad scientific attention for both theoretical research and practical applications, and has gradually become an efficient and intuitive approach to explore the wetting behaviors of various multiphase interfaces. Here, recent progress on characterizing the solid-liquid-vapor triphase interface on the microscale/nanoscale with diverse types of imaging apparatus is summarized. Moreover, the accurate, visible, and quantitative information that can be obtained shows the real interfacial morphology of the wetting behaviors of multiphase interfaces. On the basis of fundamental research, technical innovations in imaging and complicated multiphase interfaces of the superwetting surface are also briefly presented.
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Affiliation(s)
- Yun Peng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Xu Jin
- Research Institute of Petroleum, Exploration and Development, Petro China, Beijing, 100191, P. R. China
| | - Yongmei Zheng
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Dong Han
- National Center for Nanoscience and Technology, Beijing, 100190, P. R. China
| | - Kesong Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Lei Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, 100191, P. R. China
- Laboratory of Bio-inspired Smart Interface Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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13
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Feng Y, Sun R, Chen M, Liu C, Wang Q. Simulation of the morphological structures of electrospun membranes. J Appl Polym Sci 2017. [DOI: 10.1002/app.45653] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yan Feng
- State Key Laboratory for Mechanical Behavior of Materials; Xi'an Jiaotong University; Xi'an 710049 China
| | - Runjun Sun
- School of Textiles and Materials; Xi'an Polytechnic University; Xi'an 710048 China
| | - Meiyu Chen
- School of Textiles and Materials; Xi'an Polytechnic University; Xi'an 710048 China
| | - Chengkun Liu
- School of Textiles and Materials; Xi'an Polytechnic University; Xi'an 710048 China
| | - Qiushi Wang
- State Key Laboratory for Mechanical Behavior of Materials; Xi'an Jiaotong University; Xi'an 710049 China
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14
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Lee SH, Chang WS, Han SM, Kim DH, Kim JK. Synchrotron X-ray nanotomography and three-dimensional nanoscale imaging analysis of pore structure-function in nanoporous polymeric membranes. J Memb Sci 2017. [DOI: 10.1016/j.memsci.2017.04.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Faramarzi AR, Barzin J, Mobedi H. Producing PLGA fine particles containing high magnetite nanoparticles by using the electrospray technique. JOURNAL OF POLYMER RESEARCH 2016. [DOI: 10.1007/s10965-016-1177-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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16
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Lotfi M, Bagherzadeh R, Naderi-Meshkin H, Mahdipour E, Mafinezhad A, Sadeghnia HR, Esmaily H, Maleki M, Hasssanzadeh H, Ghayaour-Mobarhan M, Bidkhori HR, Bahrami AR. Hybrid chitosan-ß-glycerol phosphate-gelatin nano-/micro fibrous scaffolds with suitable mechanical and biological properties for tissue engineering. Biopolymers 2015; 105:163-75. [DOI: 10.1002/bip.22764] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Revised: 10/27/2015] [Accepted: 10/30/2015] [Indexed: 12/26/2022]
Affiliation(s)
- Marzieh Lotfi
- Department of Modern Sciences & Technologies School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Roohollah Bagherzadeh
- Advanced Textile Materials and Technology Research Institute (ATMT), Textile Engineering Department; Amirkabir University of Technology; Tehran Iran
| | - Hojjat Naderi-Meshkin
- Stem Cell and Regenerative Medicine Research Group; Iranian Academic Center for Education, Culture and Research (ACECR); Khorasan Razavi Branch Mashhad Iran
| | - Elahe Mahdipour
- Department of Medical Biotechnology, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Asghar Mafinezhad
- Pathology Department of Shahid Kamyab (Emdadi) Hospital; Mashhad University of Medical Sciences; Mashhad Iran
| | - Hamid Reza Sadeghnia
- Neurocognitive Research Center, School of Medicine; Mashhad University of Medical Sciences; Mashhad Iran
| | - Habibollah Esmaily
- Department of Biostatistics and Epidemiology; School of Health, Mashhad University of Medical Sciences Mashhad; Iran
| | - Masoud Maleki
- Cutaneous Leishmaniasis Research Center; School of Medicine, Mashhad University of Medical Sciences; Mashhad Iran
| | - Halimeh Hasssanzadeh
- Stem Cell and Regenerative Medicine Research Group; Iranian Academic Center for Education, Culture and Research (ACECR); Khorasan Razavi Branch Mashhad Iran
| | - Majid Ghayaour-Mobarhan
- Biochemistry of Nutrition Research Center, School of Medicine; Mashhad University of Medicine; Mashhad Iran
| | - Hamid Reza Bidkhori
- Stem Cell and Regenerative Medicine Research Group; Iranian Academic Center for Education, Culture and Research (ACECR); Khorasan Razavi Branch Mashhad Iran
| | - Ahmad Reza Bahrami
- Stem Cell and Regenerative Medicine Research Group; Iranian Academic Center for Education, Culture and Research (ACECR); Khorasan Razavi Branch Mashhad Iran
- Cell and Molecular Biotechnology Research Group; Institute of Biotechnology, Ferdowsi University of Mashhad; Mashhad Iran
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17
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Saveh-Shemshaki N, Latifi M, Bagherzadeh R, Malekshahi Byranvand M, Naseri N, Dabirian A. Synthesis of mesoporous functional hematite nanofibrous photoanodes by electrospinning. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3647] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Nikoo Saveh-Shemshaki
- Textile Engineering Department, Textile Research and Excellence Centers; Amirkabir University of Technology; Tehran Iran
| | - Masoud Latifi
- Textile Engineering Department, Textile Research and Excellence Centers; Amirkabir University of Technology; Tehran Iran
| | - Roohollah Bagherzadeh
- Advanced Textile Materials and Technology Research Institute (ATMT), Textile Engineering Department; Amirkabir University of Technology; Tehran Iran
| | | | - Naimeh Naseri
- Physics Department; Sharif University of Technology; Tehran Iran
| | - Ali Dabirian
- Photovoltaics and Thin Film Electronics Laboratory; École Polytechnique Fédérale de Lausanne (EPFL); Neuchatel Switzerland
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18
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Wang H, Chu C, Hao L, She Y, Li Y, Zhai L, Jiang S. Synthesis, antimicrobial, and release behaviors of tetracycline hydrochloride loaded poly (VInyl alcohol)/chitosan/ZrO2nanofibers. J Appl Polym Sci 2015. [DOI: 10.1002/app.42506] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hualin Wang
- School of Chemistry and Chemical Technology; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
- Anhui Institute of Agro-Products Intensive Processing Technology; Hefei Anhui 230009 People's Republic of China
| | - Chengjiang Chu
- School of Chemistry and Chemical Technology; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
| | - Lilan Hao
- School of Chemistry and Chemical Technology; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
| | - Yi She
- School of Chemistry and Chemical Technology; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
| | - Yanan Li
- School of Chemistry and Chemical Technology; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
| | - Linfeng Zhai
- School of Chemistry and Chemical Technology; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
| | - Shaotong Jiang
- Anhui Institute of Agro-Products Intensive Processing Technology; Hefei Anhui 230009 People's Republic of China
- School of Biotechnology and Food Engineering; Hefei University of Technology; Hefei Anhui 230009 People's Republic of China
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Gheibi A, Bagherzadeh R, Merati AA, Latifi M. Electrical power generation from piezoelectric electrospun nanofibers membranes: electrospinning parameters optimization and effect of membranes thickness on output electrical voltage. JOURNAL OF POLYMER RESEARCH 2014. [DOI: 10.1007/s10965-014-0571-8] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Structural characterization of electrospun micro/nanofibrous scaffolds by liquid extrusion porosimetry: A comparison with other techniques. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 41:335-42. [DOI: 10.1016/j.msec.2014.04.065] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/11/2014] [Accepted: 04/26/2014] [Indexed: 11/15/2022]
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21
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Li H, Li C, Zhang C, Bai J, Xu T, Sun W. Well-dispersed copper nanorods grown on the surface-functionalized PAN fibers and its antibacterial activity. J Appl Polym Sci 2014. [DOI: 10.1002/app.41011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hongqiang Li
- Chemical Engineering College; Inner Mongolia University of Technology; Hohhot 010051 People's Republic of China
| | - Chunping Li
- Chemical Engineering College; Inner Mongolia University of Technology; Hohhot 010051 People's Republic of China
| | - Chenglin Zhang
- Chemical Engineering College; Inner Mongolia University of Technology; Hohhot 010051 People's Republic of China
| | - Jie Bai
- Chemical Engineering College; Inner Mongolia University of Technology; Hohhot 010051 People's Republic of China
| | - Tong Xu
- Chemical Engineering College; Inner Mongolia University of Technology; Hohhot 010051 People's Republic of China
| | - Weiyan Sun
- Chemical Engineering College; Inner Mongolia University of Technology; Hohhot 010051 People's Republic of China
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Ramier J, Bouderlique T, Stoilova O, Manolova N, Rashkov I, Langlois V, Renard E, Albanese P, Grande D. Biocomposite scaffolds based on electrospun poly(3-hydroxybutyrate) nanofibers and electrosprayed hydroxyapatite nanoparticles for bone tissue engineering applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 38:161-9. [DOI: 10.1016/j.msec.2014.01.046] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 12/18/2013] [Accepted: 01/28/2014] [Indexed: 10/25/2022]
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Preparation and characterization of electrospun curcumin loaded poly(2-hydroxyethyl methacrylate) nanofiber-A biomaterial for multidrug resistant organisms. J Biomed Mater Res A 2014; 103:16-24. [DOI: 10.1002/jbm.a.35138] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/06/2014] [Accepted: 02/18/2014] [Indexed: 12/15/2022]
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Bagherzadeh R, Latifi M, Kong L. Three-dimensional pore structure analysis of polycaprolactone nano-microfibrous scaffolds using theoretical and experimental approaches. J Biomed Mater Res A 2013; 102:903-10. [PMID: 23554325 DOI: 10.1002/jbm.a.34736] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2013] [Accepted: 03/07/2013] [Indexed: 12/25/2022]
Abstract
In this article the pore structure and porosity parameters of polycaprolactone (PCL) nano-microfibrous scaffolds are investigated using a predicting theoretical model and a nondestructive evaluation approach based on confocal laser scanning microscopy (CLSM) and three-dimensional image analysis. Different fibrous scaffolds with different fiber diameters produced by electrospinning process and their 3D-pore structure were evaluated theoretically and also compared to results of CLSM and capillary flow porometery methods. The effect of polymer concentration on the pore structure of scaffolds was also investigated. The results showed that, the introduced approach not only can measure the pore size distribution of nanofibrous scaffolds, but also can measure pore interconnectivity of fibrous scaffolds. Furthermore, the results showed that increasing the fiber diameter resulted from increasing the polymer concentration in solvent can effectively increase the pore dimensions within the scaffold structure.
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Affiliation(s)
- Roohollah Bagherzadeh
- ATMT Research Institute, Textile Engineering Department, Amirkabir University of Technology, Tehran, Iran; Institute for Frontier Materials, Deakin University, Waurn Ponds, VIC 3216, Australia
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