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Mao Y, Zhao Y, Guan J, Guan J, Ye T, Chen Y, Zhu Y, Zhou P, Cui W. Electrospun fibers: an innovative delivery method for the treatment of bone diseases. Expert Opin Drug Deliv 2020; 17:993-1005. [PMID: 32394737 DOI: 10.1080/17425247.2020.1767583] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The treatment performances of current surgical therapeutic materials for injuries caused by high-energy trauma, such as prolonged bone defects, nerve-fiber disruptions, and repeated spasms or adhesions of vascular tendons after repair, are poor. Drug-loaded electrospun fibers have become a novel polymeric material for treating orthopedic diseases owing to their three-dimensional structures, thus providing excellent controlled drug-release responses and high affinity with local tissues. Herein, we reviewed the morphology of electrospun nanofibers, methods for loading drugs on the fibers, and modification methods to improve drug permeability and bioavailability. We highlight innovative applications of drug-loaded electrospun fibers in different treatments, including bone and cartilage defects, tendon and soft-tissue adhesion, vascular remodeling, skin grafting, and nervous-system injuries. AREAS COVERED With the rapid development of electrospinning technologies and advancement of tissue engineering, drug-loaded electrospun fibers are becoming increasingly important in controlled drug release, wound closure, and tissue regeneration and repair. EXPERT OPINION Drug-loaded electrospun fibers exhibit a broad range of application prospects and great potential in treating orthopedic diseases. Accordingly, a plethora of novel treatments utilizing the different morphological features of electrospun fibers, the distinctive pharmacokinetics, pharmacodynamics characteristics of different drugs, and the diverse onset characteristics of different diseases, is proposed.
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Affiliation(s)
- Yingji Mao
- Department of Orthopedics, First Affiliated Hospital of Bengbu Medical College , Bengbu, P.R. China.,School of Life Science, Bengbu Medical College , Bengbu, P. R. China.,Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical College , Bengbu, P. R. China
| | - Yupeng Zhao
- Department of Orthopedics, First Affiliated Hospital of Bengbu Medical College , Bengbu, P.R. China.,Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical College , Bengbu, P. R. China
| | - Jingjing Guan
- Department of Orthopedics, First Affiliated Hospital of Bengbu Medical College , Bengbu, P.R. China
| | - Jianzhong Guan
- Department of Orthopedics, First Affiliated Hospital of Bengbu Medical College , Bengbu, P.R. China
| | - Tingjun Ye
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, P. R. China
| | - Yu Chen
- Department of Orthopedics, First Affiliated Hospital of Bengbu Medical College , Bengbu, P.R. China.,School of Life Science, Bengbu Medical College , Bengbu, P. R. China
| | - Yansong Zhu
- School of Life Science, Bengbu Medical College , Bengbu, P. R. China
| | - Pinghui Zhou
- Department of Orthopedics, First Affiliated Hospital of Bengbu Medical College , Bengbu, P.R. China.,Anhui Province Key Laboratory of Tissue Transplantation, Bengbu Medical College , Bengbu, P. R. China
| | - Wenguo Cui
- Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint Diseases, Shanghai Institute of Traumatology and Orthopaedics, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine , Shanghai, P. R. China
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Mamidi N, Zuníga AE, Villela-Castrejón J. Engineering and evaluation of forcespun functionalized carbon nano-onions reinforced poly (ε-caprolactone) composite nanofibers for pH-responsive drug release. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110928. [PMID: 32409077 DOI: 10.1016/j.msec.2020.110928] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 03/22/2020] [Accepted: 04/01/2020] [Indexed: 02/07/2023]
Abstract
Nanofibers and smart polymers are potentially fascinating biomaterials for the sustained release of therapeutic agents and tissue engineering applications. The current study describes a new class of pH-controlled polycaprolactone/mercaptophenyl methacrylate functionalized carbon nano-onions (PCL/f-CNOs) composite nanofibers by Forcespinning® (FS) with a sustained drug release profile. The morphology and structural characteristics of PCL/f-CNOs nanofibers were scrutinized by Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR), respectively. The morphological results revealed that FS provided homogeneous and bead free nanofibers with average diameters from approximately 215 nm to 596 nm. PCL/f-CNOs composite fibers exhibited pH-responsive release of DOX over 15 days; pH 6.5 showed 87%, and pH 5.0 presented around 99% of DOX release. Drug release measurements showed that the π-π stacking interactions between DOX and f-CNOs have led to a controlled DOX release from forcespun PCL/f-CNOs fibers. Owing to the f-CNOs amalgamation, PCL/f-CNOs fibers unveiled enhanced tensile strength (3.16 MPa) as compared to pristine PCL fibers. It reveals the magnitude of colloidal stability and physisorption of f-CNOs within the PCL matrix. Besides, the in-vitro cell viability was measured with human fibroblast cells, and good viability was observed. Nevertheless, DOX embedded pH-responsive PCL/f-CNOs composite nanofibers may show potential applications in the biomedical research area.
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Affiliation(s)
- Narsimha Mamidi
- Tecnologico de Monterrey, Department of Chemistry and Nanotechnology, School of Engineering and Science, Eugenio Garza Sada 2501 Sur, Col. Tecnologico, C.P. 64849 Monterrey, Nuevo León, Mexico.
| | - Alex Elías Zuníga
- Tecnologico de Monterrey, Department of Chemistry and Nanotechnology, School of Engineering and Science, Eugenio Garza Sada 2501 Sur, Col. Tecnologico, C.P. 64849 Monterrey, Nuevo León, Mexico
| | - Javier Villela-Castrejón
- Tecnologico de Monterrey, Department of Chemistry and Nanotechnology, School of Engineering and Science, Eugenio Garza Sada 2501 Sur, Col. Tecnologico, C.P. 64849 Monterrey, Nuevo León, Mexico
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