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Zhang L, Chai W, Zhang J, Chen Z, Yue Z, Wang J, Yu J. Switchable surface and loading/release of target molecules in hierarchically porous PLA nonwovens based on shape memory effect. RSC Adv 2024; 14:6199-6204. [PMID: 38375019 PMCID: PMC10875605 DOI: 10.1039/d3ra08411f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Accepted: 02/09/2024] [Indexed: 02/21/2024] Open
Abstract
In this work, hierarchically porous PLA (polylactic acid) shape memory nonwovens were prepared by electrospinning its blend solution with PEO (polyethylene oxide) and subsequent water etching. Based on shape memory effect resulting from tiny crystals and the amorphous matrix of PLA, the switch between compact and porous surfaces has been achieved via cyclical hot-pressing and recovery in a hot water bath. After hot-pressing, the disappearance of hierarchical pores contributes to compact surface, enabling embedding of the target molecule in PLA nonwoven (i.e., CLOSE state). Upon exposure to heat, PLA nonwoven recovers to its permanent shape and exhibits a porous surface, providing a penetrative diffusion pathway for small molecules (i.e., OPEN state). The hierarchically porous structure and shape memory effect endow PLA nonwoven with the capability of rapid release. Our results provide a good candidate for some potential applications, such as temperature-controlled quick-release of catalysts and drugs.
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Affiliation(s)
- Lishuo Zhang
- College of Safety Science and Engineering, Liaoning Technical University Huludao 125105 China
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 311121 China
| | - Wenqiang Chai
- Tongxiang Jianmin Filter Material Product Co. LTD. 314511 Jiaxing China
| | - Jiaru Zhang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 311121 China
| | - Zhouli Chen
- Zhejiang Institute of Mechanical & Electrical Engineering Hangzhou 311203 China
| | - Ziyang Yue
- College of Science, Liaoning Technical University Fuxin 123000 China
| | - Jiayao Wang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University Hangzhou 311121 China
| | - Jiankang Yu
- College of Safety Science and Engineering, Liaoning Technical University Huludao 125105 China
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Lopez-Mendez TB, Santos-Vizcaino E, Pedraz JL, Orive G, Hernandez RM. Cell microencapsulation technologies for sustained drug delivery: Latest advances in efficacy and biosafety. J Control Release 2021; 335:619-636. [PMID: 34116135 DOI: 10.1016/j.jconrel.2021.06.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 06/04/2021] [Accepted: 06/06/2021] [Indexed: 10/21/2022]
Abstract
The development of cell microencapsulation systems began several decades ago. However, today few systems have been tested in clinical trials. For this reason, in the last years, researchers have directed efforts towards trying to solve some of the key aspects that still limit efficacy and biosafety, the two major criteria that must be satisfied to reach the clinical practice. Regarding the efficacy, which is closely related to biocompatibility, substantial improvements have been made, such as the purification or chemical modification of the alginates that normally form the microspheres. Each of the components that make up the microcapsules has been carefully selected to avoid toxicities that can damage the encapsulated cells or generate an immune response leading to pericapsular fibrosis. As for the biosafety, researchers have developed biological circuits capable of actively responding to the needs of the patients to precisely and accurately release the demanded drug dose. Furthermore, the structure of the devices has been subject of study to adequately protect the encapsulated cells and prevent their spread in the body. The objective of this review is to describe the latest advances made by scientist to improve the efficacy and biosafety of cell microencapsulation systems for sustained drug delivery, also highlighting those points that still need to be optimized.
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Affiliation(s)
- Tania B Lopez-Mendez
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain
| | - Edorta Santos-Vizcaino
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Jose Luis Pedraz
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain
| | - Gorka Orive
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain; University Institute for Regenerative Medicine and Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), BTI Biotechnology Institute, Vitoria-Gasteiz, Spain; Singapore Eye Research Institute, The Academia, 20 College Road, Discovery Tower, Singapore.
| | - Rosa Maria Hernandez
- NanoBioCel Research Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Paseo de la Universidad, 7, 01006 Vitoria-Gasteiz, Spain; Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Instituto de Salud Carlos III, C/Monforte de Lemos 3-5, 28029 Madrid, Spain; Bioaraba, NanoBioCel Research Group, Vitoria-Gasteiz, Spain.
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Kopach O, Pavlov AM, Sindeeva OA, Sukhorukov GB, Rusakov DA. Biodegradable Microcapsules Loaded with Nerve Growth Factor Enable Neurite Guidance and Synapse Formation. Pharmaceutics 2020; 13:E25. [PMID: 33375672 PMCID: PMC7823884 DOI: 10.3390/pharmaceutics13010025] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/17/2020] [Accepted: 12/18/2020] [Indexed: 12/16/2022] Open
Abstract
Neurological disorders and traumas often involve loss of specific neuronal connections, which would require intervention with high spatial precision. We have previously demonstrated the biocompatibility and therapeutic potential of the layer-by-layer (LbL)-fabricated microcapsules aimed at the localized delivery of specific channel blockers to peripheral nerves. Here, we explore the potential of LbL-microcapsules to enable site-specific, directional action of neurotrophins to stimulate neuronal morphogenesis and synaptic circuit formation. We find that nanoengineered biodegradable microcapsules loaded with nerve growth factor (NGF) can guide the morphological development of hippocampal neurons in vitro. The presence of NGF-loaded microcapsules or their clusters increases the neurite outgrowth rate while boosting neurite branching. Microcapsule clusters appear to guide the trajectory of developing individual axons leading to the formation of functional synapses. Our observations highlight the potential of NGF-loaded, biodegradable LbL-microcapsules to help guide axonal development and possibly circuit regeneration in neuropathology.
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Affiliation(s)
- Olga Kopach
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
| | - Anton M. Pavlov
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK; (A.M.P.); (O.A.S.)
- Remote Controlled Theranostic Systems Laboratory, Saratov State University, 83 Astrakhanskaya Street, 410012 Saratov, Russia
| | - Olga A. Sindeeva
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK; (A.M.P.); (O.A.S.)
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Street, 143005 Moscow, Russia
| | - Gleb B. Sukhorukov
- School of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UK; (A.M.P.); (O.A.S.)
- Center for Neurobiology and Brain Restoration, Skolkovo Institute of Science and Technology, 3 Nobel Street, 143005 Moscow, Russia
| | - Dmitri A. Rusakov
- Department of Clinical and Experimental Epilepsy, UCL Queen Square Institute of Neurology, University College London, London WC1N 3BG, UK
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Facklam AL, Volpatti LR, Anderson DG. Biomaterials for Personalized Cell Therapy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1902005. [PMID: 31495970 DOI: 10.1002/adma.201902005] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/26/2019] [Indexed: 05/13/2023]
Abstract
Cell therapy has already had an important impact on healthcare and provided new treatments for previously intractable diseases. Notable examples include mesenchymal stem cells for tissue regeneration, islet transplantation for diabetes treatment, and T cell delivery for cancer immunotherapy. Biomaterials have the potential to extend the therapeutic impact of cell therapies by serving as carriers that provide 3D organization and support cell viability and function. With the growing emphasis on personalized medicine, cell therapies hold great potential for their ability to sense and respond to the biology of an individual patient. These therapies can be further personalized through the use of patient-specific cells or with precision biomaterials to guide cellular activity in response to the needs of each patient. Here, the role of biomaterials for applications in tissue regeneration, therapeutic protein delivery, and cancer immunotherapy is reviewed, with a focus on progress in engineering material properties and functionalities for personalized cell therapies.
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Affiliation(s)
- Amanda L Facklam
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Lisa R Volpatti
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Daniel G Anderson
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Anesthesiology, Boston Children's Hospital, Boston, MA, 02115, USA
- Harvard-MIT Division of Health Sciences and Technology, Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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5
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The role of nanomaterials in cell delivery systems. Med Mol Morphol 2017; 51:1-12. [PMID: 29170827 DOI: 10.1007/s00795-017-0173-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Accepted: 11/10/2017] [Indexed: 12/21/2022]
Abstract
In more than one decade, cell transplantation has created an important strategy to treat a wide variety of diseases characterized by tissue and cell dysfunctions. In this course of action, cell delivery to target site has been always one of the most important constraints and complications, as only a small proportion of the cells are housed in the target sites. Nanotechnology and nanoscale biomaterials have been helpful for cell transplantation in various fields of regenerative medicine including diagnosis, delivery systems for the cell, drug or gene, and cells protection system. In this study, the basic concepts and recently studied aspects of cell delivery systems based on nanoscale biomaterials for transplantation and clinical applications are highlighted. Nanomaterials may be used in combination with cell therapy to control the release of drugs or special factors of engineered cells after transplantation.
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Li L, He ZY, Wei XW, Gao GP, Wei YQ. Challenges in CRISPR/CAS9 Delivery: Potential Roles of Nonviral Vectors. Hum Gene Ther 2016; 26:452-62. [PMID: 26176432 DOI: 10.1089/hum.2015.069] [Citation(s) in RCA: 112] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
CRISPR/Cas9 genome editing platforms are widely applied as powerful tools in basic research and potential therapeutics for genome regulation. The appropriate alternative of delivery system is critical if genome editing systems are to be effectively performed in the targeted cells or organisms. To date, the in vivo delivery of the Cas9 system remains challenging. Both physical methods and viral vectors are adopted in the delivery of the Cas9-based gene editing platform. However, physical methods are more applicable for in vitro delivery, while viral vectors are generally concerned with safety issues, limited packing capacities, and so on. With the robust development of nonviral drug delivery systems, lipid- or polymer-based nanocarriers might be potent vectors for the delivery of CRISPR/Cas9 systems. In this review, we look back at the delivery approaches that have been used for the delivery of the Cas9 system and outline the recent development of nonviral vectors that might be potential carriers for the genome editing platform in the future. The efforts in optimizing cationic nanocarriers with structural modification are described and promising nonviral vectors under clinical investigations are highlighted.
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Affiliation(s)
- Ling Li
- 1 Lab for Aging Research, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu, Sichuan, PR China
| | - Zhi-Yao He
- 1 Lab for Aging Research, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu, Sichuan, PR China
| | - Xia-Wei Wei
- 1 Lab for Aging Research, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu, Sichuan, PR China
| | - Guang-Ping Gao
- 2 Gene Therapy Center, University of Massachusetts Medical School , Worcester, Massachusetts.,3 Department of Microbiology and Physiology Systems, University of Massachusetts Medical School , Worcester, Massachusetts
| | - Yu-Quan Wei
- 1 Lab for Aging Research, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University , Chengdu, Sichuan, PR China
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Qin J, He H, Zhang W, Chen F, Liu C. Effective incorporation of rhBMP-2 on implantable titanium disks with microstructures by using electrostatic spraying deposition. RSC Adv 2016. [DOI: 10.1039/c6ra09421j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Electrostatic spraying deposition was applied to construct a biodegradable coating loaded with rhBMP-2 on hydrophilic SLA-treated titanium disks.
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Affiliation(s)
- Jiankang Qin
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education
| | - Hongyan He
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education
| | - Wenjing Zhang
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- PR China
| | - Fangping Chen
- Engineering Research Center for Biomedical Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- PR China
| | - Changsheng Liu
- Key Laboratory for Ultrafine Materials of Ministry of Education
- East China University of Science and Technology
- Shanghai 200237
- PR China
- Engineering Research Center for Biomedical Materials of Ministry of Education
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Gurruchaga H, Saenz del Burgo L, Ciriza J, Orive G, Hernández RM, Pedraz JL. Advances in cell encapsulation technology and its application in drug delivery. Expert Opin Drug Deliv 2015; 12:1251-67. [PMID: 25563077 DOI: 10.1517/17425247.2015.1001362] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
INTRODUCTION Cell encapsulation technology has improved enormously since it was proposed 50 years ago. The advantages offered over other alternative systems, such as the prevention of repetitive drug administration, have triggered the use of this technology in multiple therapeutic applications. AREAS COVERED In this article, improvements in cell encapsulation technology and strategies to overcome the drawbacks that prevent its use in the clinic have been summarized and discussed. Different studies and clinical trials that have been performed in several therapeutic applications have also been described. EXPERT OPINION The authors believe that the future translation of this technology from bench to bedside requires the optimization of diverse aspects: i) biosafety, controlling and monitoring cell viability; ii) biocompatibility, reducing pericapsular fibrotic growth and hypoxia suffered by the graft; iii) control over drug delivery; iv) and the final scale up. On the other hand, an area that deserves more attention is the cryopreservation of encapsulated cells as this will facilitate the arrival of these biosystems to the clinic.
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Affiliation(s)
- Haritz Gurruchaga
- University of the Basque Country, Laboratory of Pharmacy and Pharmaceutical Technology, NanoBioCel Group, Faculty of Pharmacy, UPV/EHU , Vitoria-Gasteiz, 01006 , Spain
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Acarregui A, Herrán E, Igartua M, Blanco FJ, Pedraz JL, Orive G, Hernandez RM. Multifunctional hydrogel-based scaffold for improving the functionality of encapsulated therapeutic cells and reducing inflammatory response. Acta Biomater 2014; 10:4206-16. [PMID: 25010523 DOI: 10.1016/j.actbio.2014.06.038] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 06/16/2014] [Accepted: 06/30/2014] [Indexed: 12/28/2022]
Abstract
Since the introduction of cell immunoisolation as an alternative to protect transplanted cells from host immune attack, much effort has been made to develop this technology into a realistic clinical proposal. Several promising approaches have been investigated to resolve the biotechnological and biosafety challenges related to cell microencapsulation. Here, a multifunctional hydrogel-based scaffold consisting of cell-loaded alginate-poly-l-lysine-alginate (APA) microcapsules and dexamethasone (DXM)-loaded poly(lactic-co-glycolic) acid (PLGA) microspheres embedded in alginate hydrogel is developed and evaluated. Initially, the feasibility of using an alginate hydrogel for enclosing APA microcapsules was studied in a xenogeneic approach. In addition, the performance of the local release of DXM was addressed. The in vitro studies confirmed the correct adaptation of the enclosed cells to the scaffolds in terms of metabolic activity and viability. The posterior implantation of the hydrogel-based scaffolds containing cell-loaded microcapsules revealed that the hematocrit levels were maintained high and constant, and the pericapsular overgrowth was reduced in the DXM-treated rats for at least 2months. This multifunctional scaffold might have a synergistic effect: (1) providing a physical support for APA microcapsules, facilitating administration, ensuring retention and recuperation and preventing dissemination; and (2) reducing post-transplantation inflammation and foreign body reaction, thus prolonging the lifetime of the implant by the continuous and localized release of DXM.
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Orive G, Santos E, Pedraz J, Hernández R. Application of cell encapsulation for controlled delivery of biological therapeutics. Adv Drug Deliv Rev 2014; 67-68:3-14. [PMID: 23886766 DOI: 10.1016/j.addr.2013.07.009] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 06/26/2013] [Accepted: 07/12/2013] [Indexed: 01/12/2023]
Abstract
Cell microencapsulation technology is likely to have an increasingly important role in new approaches rather than the classical and pioneering organ replacement. Apart from becoming a tool for protein and morphogen release and long-term drug delivery, it is becoming a new three-dimensional platform for stem cell research. Recent progress in the field has resulted in biodegradable scaffolds that are able to retain and release the cell content in different anatomical locations. Additional advances include the use biomimetic scaffolds that provide greater control over material-cell interactions and the development of more precise encapsulated cell-tracking systems. This review summarises the state of the art of cell microencapsulation and discusses the main directions and challenges of this field towards the controlled delivery of biological therapeutics.
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Polylysine-modified polyethylenimine inducing tumor apoptosis as an efficient gene carrier. J Control Release 2013; 172:410-8. [DOI: 10.1016/j.jconrel.2013.06.026] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 06/18/2013] [Accepted: 06/23/2013] [Indexed: 11/24/2022]
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Therapeutic cell encapsulation: Ten steps towards clinical translation. J Control Release 2013; 170:1-14. [DOI: 10.1016/j.jconrel.2013.04.015] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 04/05/2013] [Accepted: 04/22/2013] [Indexed: 12/23/2022]
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