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Guo M, Wang X, Liu Y, Yu H, Dong J, Cui Z, Bai Z, Li K, Li Q. Hierarchical Shish-Kebab Structures Functionalizing Nanofibers for Controlled Drug Release and Improved Antithrombogenicity. Biomacromolecules 2022; 23:1337-1349. [PMID: 35235295 DOI: 10.1021/acs.biomac.1c01572] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The functionalization of the fibrous scaffolds including drug loading and release is of significance in tissue engineering and regenerative medicine. Our previous results have shown that the shish-kebab structure-modified fibrous scaffold shows a completely different microenvironment that mimics the topography of the collagen fibers, which interestingly facilitates the cell adhesion and migration. However, the functionalization of the unique structure needs to be further investigated. In this study, we modified the heparin-loaded fiber with a shish-kebab structure and tuned the kebab structure as the barrier for the sustained release of heparin. The introduction of the kebab structure increases the diffusion energy barrier by extending the diffusion distance. Moreover, the discontinued surface topography of the shish-kebab structure altered the surface chemistry from hydrophobic for the original poly(ε-caprolactone) (PCL) nanofibers to hydrophilic for the PCL nanofibers with the shish-kebab structure, which might have inhibited the activation of fibrinogen and thus improved the anticoagulant ability. This synergistic effect of heparin and the kebab structure significantly promotes the endothelial cell affinity and antithrombogenicity. This method might be a viable and versatile drug delivery strategy in vascular tissue engineering.
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Affiliation(s)
- Meng Guo
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.,National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaofeng Wang
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.,National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Yajing Liu
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.,National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Haichang Yu
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Jiahui Dong
- National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China.,School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhixiang Cui
- Department of Materials Science and Engineering, Fujian University of Technology, Fuzhou 350118, China
| | - Zhiyuan Bai
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.,National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Kecheng Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.,National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
| | - Qian Li
- School of Mechanics and Safety Engineering, Zhengzhou University, Zhengzhou 450001, China.,National Center for International Research of Micro-Nano Molding Technology, Zhengzhou University, Zhengzhou 450001, China
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2
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Wang L, Wang C, Zhou L, Bi Z, Shi M, Wang D, Li Q. Fabrication of a novel Three-Dimensional porous PCL/PLA tissue engineering scaffold with high connectivity for endothelial cell migration. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110834] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Bilginer R, Ozkendir‐Inanc D, Yildiz UH, Arslan‐Yildiz A. Biocomposite scaffolds for
3D
cell culture: Propolis enriched polyvinyl alcohol nanofibers favoring cell adhesion. J Appl Polym Sci 2020. [DOI: 10.1002/app.50287] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Rumeysa Bilginer
- Department of Bioengineering Izmir Institute of Technology (IZTECH) Izmir Turkey
| | | | - Umit Hakan Yildiz
- Department of Chemistry Izmir Institute of Technology (IZTECH) Izmir Turkey
| | - Ahu Arslan‐Yildiz
- Department of Bioengineering Izmir Institute of Technology (IZTECH) Izmir Turkey
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4
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Huang C, Yang G, Zhou S, Luo E, Pan J, Bao C, Liu X. Controlled Delivery of Growth Factor by Hierarchical Nanostructured Core-Shell Nanofibers for the Efficient Repair of Critical-Sized Rat Calvarial Defect. ACS Biomater Sci Eng 2020; 6:5758-5770. [PMID: 33320572 DOI: 10.1021/acsbiomaterials.0c00837] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Electrospun nanofibers have received much attention as bone tissue-engineered scaffolds for their capacity to mimic the structure of natural extracellular matrix (ECM). Most studies have reproduced nanofibers with smooth surface for tissue engineering. This is quite different from the triple-helical nanotopography of natural collagen nanofibrils. In this study, hierarchical nanostructures were coated on the surface of drug-loaded core-shell nanofibers to mimic natural collagen nanofibrils. The nanoshish-kebab (SK) structure was decorated regularly on the surface of the nanofibers, and the inner-loaded bone morphogenetic protein 2 (BMP2) exhibited a gentle release pattern, similar to a zero-order release pattern in kinetics. The in vitro study also showed that the SK structure could accelerate cell proliferation, attachment, and osteogenic differentiation. Four groups of scaffolds were implanted in vivo to repair critical-sized rat calvarial defects: (1) PCL/PVA (control); (2) SK-PCL/PVA; (3) PCL/PVA-BMP2; and (4) SK-PCL/PVA-BMP2. Much more bone was formed in the SK-PCL/PVA group (24.57 ± 3.81%) than in the control group (1.21 ± 0.23%). The BMP2-loaded core-shell nanofibers with nanopatterned structure (SK-PCL/PVA-BMP2) displayed the best repair efficacy (76.38 ± 4.13%), followed by the PCL/PVA-BMP2 group (39.86 ± 5.74%). It was believed that the hierarchical nanostructured core-shell nanofibers could promote osteogeneration and that the SK structure showed synergistic ability with nanofiber-loaded BMP2 in vivo for bone regeneration. Thus, this BMP2-loaded core-shell nanofiber scaffold with hierarchical nanostructure holds great potential for bone tissue engineering applications.
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Affiliation(s)
- Chunpeng Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Guang Yang
- College of Medicine, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - Shaobing Zhou
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
| | - En Luo
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Jian Pan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Chongyun Bao
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China
| | - Xian Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, P. R. China.,Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P. R. China
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5
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Le T, Subramanian R, Ajala O, Pellegrin P, Depan D. The mobility of PEG chains versus micellar stability towards the formation of PE‐b‐PEG nanohybrid shish‐kebab on carbon nanotubes. POLYM ADVAN TECHNOL 2019. [DOI: 10.1002/pat.4612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tuan Le
- Department of Chemical EngineeringUniversity of Louisiana at Lafayette Lafayette LA 70503 U.S.A
| | - Ramalingam Subramanian
- Department of Chemical EngineeringUniversity of Louisiana at Lafayette Lafayette LA 70503 U.S.A
| | - Oluwakemi Ajala
- Department of Chemical EngineeringUniversity of Louisiana at Lafayette Lafayette LA 70503 U.S.A
| | - Padma Pellegrin
- Department of Chemical EngineeringUniversity of Louisiana at Lafayette Lafayette LA 70503 U.S.A
| | - Dilip Depan
- Department of Chemical EngineeringUniversity of Louisiana at Lafayette Lafayette LA 70503 U.S.A
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6
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Sun F, Guo J, Li Y, Bai S, Wang Q. Preparation of high-performance polyethylene tubes under the coexistence of silicone cross-linked polyethylene and rotation extrusion. ROYAL SOCIETY OPEN SCIENCE 2019; 6:182095. [PMID: 31218035 PMCID: PMC6549968 DOI: 10.1098/rsos.182095] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 04/15/2019] [Indexed: 06/09/2023]
Abstract
In this study, the silicone cross-linked polyethylene (Si-XLPE) powder with better thermoplastic performance and abundant cross-linked network points was attained by using solid-state shear mechanochemical (S3M) technology and it was added into high-density polyethylene (HDPE) matrix to prepare Si-XLPE/HDPE tubes by a rotation extrusion rheometer. SEM and 2D-SAXS experiments showed that the presence of Si-XLPE and rotation extrusion facilitated the formation of stable shish-kebabs which deviated from the axial direction in polyethylene (PE) tubes. This result was interpreted that introduction of Si-XLPE in PE tubes provided abundant molecular cross-linked network structures, which suppressed the thermal movement and relaxation of oriented molecular chains owing to intermolecular interaction. Moreover, the axial and hoop flow field further promoted orientation of the permanent cross-linked network entanglement points and formation of more stable cluster-like shish structures in the off-axial direction during the rotation extrusion process. Besides, our experimental results had also ascertained that molecular orientation and shish-kebabs in off-axial direction should be the primary responsibility for the remarkable enhancement of hoop torsional strength in PE tubes. Hoop torsional strength of PE tubes adding Si-XLPE reached 19.58 MPa when the mandrel rotation rate was 30 r.p.m., while that of conventional extruded PE tubes was only 9.83 MPa. As a consequence, PE tubes with excellent performance were prepared under the combined effect of Si-XLPE and rotation extrusion.
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Affiliation(s)
- Fasen Sun
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, People's Republic of China
| | - Jia Guo
- State Key Laboratory of Special Functional Waterproof Materials, Beijing Oriental Yuhong Waterproof Technology Co., Ltd, No. 2 Shaling Section, Shunping Road, Beijing 100020, Peoples' Republic of China
| | - Yijun Li
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, People's Republic of China
| | - Shibing Bai
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, People's Republic of China
| | - Qi Wang
- State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu 610065, People's Republic of China
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7
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Wang X, Gao Y, Xu Y, Li X, Jiang J, Hou J, Han W, Li Q, Shen C. A Prerequisite of the Poly(ε-Caprolactone) Self-Induced Nanohybrid Shish-Kebab Structure Formation: An Ordered Crystal Lamellae Orientation Morphology of Fibers. MACROMOL CHEM PHYS 2017. [DOI: 10.1002/macp.201700414] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xiaofeng Wang
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
- State Key Laboratory of Molecular Engineering of Polymers (Fudan University); Shanghai 200433 China
| | - Yanhong Gao
- School of Materials Science & Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Yiyang Xu
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
| | - Xuyan Li
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
| | - Jing Jiang
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
| | - Jianhua Hou
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
| | - WenJuan Han
- School of Materials Science & Engineering; Zhengzhou University; Zhengzhou 450001 China
| | - Qian Li
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
| | - Changyu Shen
- National Center for International Research of Micro-Nano Molding Technology; Henan Key Laborotary of Micro Molding Technology; Zhengzhou University; Zhengzhou 450001 China
- School of Mechanics & Engineering Science; Zhengzhou University; Zhengzhou 450001 China
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8
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Le T, Collazos N, Simoneaux A, Murru S, Depan D, Subramaniam R. Statistical modelling and simulation of nanohybrid shish-kebab architecture of PE-b-PEG copolymers and carbon nanotubes. Phys Chem Chem Phys 2017; 19:13348-13360. [PMID: 28492681 DOI: 10.1039/c7cp00597k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon nanotubes have been known to develop hierarchically ordered polymer nanocomposites by virtue of epitaxial crystallization. A unique product of CNT induced crystallization is generation of nanohybrid shish-kebab (NHSK) structure, which has gained tremendous attention owing to its unique applications. However, research faces major challenges in terms of producing tunable patterns on CNTs, which are largely governed by precise control of the crystallization parameters. Conventional methods of experimentation can mislead the effect of experimental conditions on NHSK structure. The effect of crystallization time, undercooling temperature and polymer concentration on the NHSK architecture of carbon nanotubes (CNTs) and on a block copolymer, polyethylene-b-polyethylene glycol (PE-b-PEG), was studied in this work by applying the Response Surface Methodology (RSM). The present novel investigation mainly reports the statistical models that can be used to predict the different NHSK structural features such as diameter, periodicity, and thickness by including the interaction and quadratic effects of experimental variables. The developed models are in very good agreement with the experimental data and are statistically significant. Our novel approach can be used to better understand the interplay between various crystallization parameters for periodic patterning on carbon nanotubes to generate tunable hierarchical structures.
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Affiliation(s)
- Tuan Le
- Department of Chemical Engineering, University of Louisiana at Lafayette, Lafayette, LA 70503, USA.
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9
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Huang A, Jiang Y, Napiwocki B, Mi H, Peng X, Turng LS. Fabrication of poly(ε-caprolactone) tissue engineering scaffolds with fibrillated and interconnected pores utilizing microcellular injection molding and polymer leaching. RSC Adv 2017. [DOI: 10.1039/c7ra06987a] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Three-dimensional fibrillated interconnected porous poly(ε-caprolactone) scaffolds were prepared by microcellular injection molding and polymer leaching.
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Affiliation(s)
- An Huang
- National Engineering Research Center of Novel Equipment for Polymer Processing
- South China University of Technology
- Guangzhou
- China
- Department of Mechanical Engineering
| | - Yongchao Jiang
- Department of Mechanical Engineering
- University of Wisconsin-Madison
- Madison
- USA
- Wisconsin Institute for Discovery
| | - Brett Napiwocki
- Wisconsin Institute for Discovery
- University of Wisconsin-Madison
- Madison
- USA
- Department of Biomedical Engineering
| | - Haoyang Mi
- National Engineering Research Center of Novel Equipment for Polymer Processing
- South China University of Technology
- Guangzhou
- China
- Department of Mechanical Engineering
| | - Xiangfang Peng
- National Engineering Research Center of Novel Equipment for Polymer Processing
- South China University of Technology
- Guangzhou
- China
| | - Lih-Sheng Turng
- Department of Mechanical Engineering
- University of Wisconsin-Madison
- Madison
- USA
- Wisconsin Institute for Discovery
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