1
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Xuan Z, Zachar V, Pennisi CP. Sources, Selection, and Microenvironmental Preconditioning of Cells for Urethral Tissue Engineering. Int J Mol Sci 2022; 23:ijms232214074. [PMID: 36430557 PMCID: PMC9697333 DOI: 10.3390/ijms232214074] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 11/18/2022] Open
Abstract
Urethral stricture is a common urinary tract disorder in men that can be caused by iatrogenic causes, trauma, inflammation, or infection and often requires reconstructive surgery. The current therapeutic approach for complex urethral strictures usually involves reconstruction with autologous tissue from the oral mucosa. With the goal of overcoming the lack of sufficient autologous tissue and donor site morbidity, research over the past two decades has focused on cell-based tissue-engineered substitutes. While the main focus has been on autologous cells from the penile tissue, bladder, and oral cavity, stem cells from sources such as adipose tissue and urine are competing candidates for future urethral regeneration due to their ease of collection, high proliferative capacity, maturation potential, and paracrine function. This review addresses the sources, advantages, and limitations of cells for tissue engineering in the urethra and discusses recent approaches to improve cell survival, growth, and differentiation by mimicking the mechanical and biophysical properties of the extracellular environment.
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Khanna A, Zamani M, Huang NF. Extracellular Matrix-Based Biomaterials for Cardiovascular Tissue Engineering. J Cardiovasc Dev Dis 2021; 8:137. [PMID: 34821690 PMCID: PMC8622600 DOI: 10.3390/jcdd8110137] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/10/2021] [Accepted: 10/19/2021] [Indexed: 12/12/2022] Open
Abstract
Regenerative medicine and tissue engineering strategies have made remarkable progress in remodeling, replacing, and regenerating damaged cardiovascular tissues. The design of three-dimensional (3D) scaffolds with appropriate biochemical and mechanical characteristics is critical for engineering tissue-engineered replacements. The extracellular matrix (ECM) is a dynamic scaffolding structure characterized by tissue-specific biochemical, biophysical, and mechanical properties that modulates cellular behavior and activates highly regulated signaling pathways. In light of technological advancements, biomaterial-based scaffolds have been developed that better mimic physiological ECM properties, provide signaling cues that modulate cellular behavior, and form functional tissues and organs. In this review, we summarize the in vitro, pre-clinical, and clinical research models that have been employed in the design of ECM-based biomaterials for cardiovascular regenerative medicine. We highlight the research advancements in the incorporation of ECM components into biomaterial-based scaffolds, the engineering of increasingly complex structures using biofabrication and spatial patterning techniques, the regulation of ECMs on vascular differentiation and function, and the translation of ECM-based scaffolds for vascular graft applications. Finally, we discuss the challenges, future perspectives, and directions in the design of next-generation ECM-based biomaterials for cardiovascular tissue engineering and clinical translation.
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Affiliation(s)
| | - Maedeh Zamani
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA;
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
| | - Ngan F. Huang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA;
- Stanford Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA
- Department of Chemical Engineering, Stanford University, Stanford, CA 94305, USA
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA
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3
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Zamani M, Shakhssalim N, Ramakrishna S, Naji M. Electrospinning: Application and Prospects for Urologic Tissue Engineering. Front Bioeng Biotechnol 2020; 8:579925. [PMID: 33117785 PMCID: PMC7576678 DOI: 10.3389/fbioe.2020.579925] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/18/2020] [Indexed: 12/14/2022] Open
Abstract
Functional disorders and injuries of urinary bladder, urethra, and ureter may necessitate the application of urologic reconstructive surgeries to recover normal urine passage, prevent progressive damages of these organs and upstream structures, and improve the quality of life of patients. Reconstructive surgeries are generally very invasive procedures that utilize autologous tissues. In addition to imperfect functional outcomes, these procedures are associated with significant complications owing to long-term contact of urine with unspecific tissues, donor site morbidity, and lack of sufficient tissue for vast reconstructions. Thanks to the extensive advancements in tissue engineering strategies, reconstruction of the diseased urologic organs through tissue engineering have provided promising vistas during the last two decades. Several biomaterials and fabrication methods have been utilized for reconstruction of the urinary tract in animal models and human subjects; however, limited success has been reported, which inspires the application of new methods and biomaterials. Electrospinning is the primary method for the production of nanofibers from a broad array of natural and synthetic biomaterials. The biomimetic structure of electrospun scaffolds provides an ECM-like matrix that can modulate cells' function. In addition, electrospinning is a versatile technique for the incorporation of drugs, biomolecules, and living cells into the constructed scaffolds. This method can also be integrated with other fabrication procedures to achieve hybrid smart constructs with improved performance. Herein, we reviewed the application and outcomes of electrospun scaffolds in tissue engineering of bladder, urethra, and ureter. First, we presented the current status of tissue engineering in each organ, then reviewed electrospun scaffolds from the simplest to the most intricate designs, and summarized the outcomes of preclinical (animal) studies in this area.
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Affiliation(s)
- Masoud Zamani
- Department of Chemical and Biological Engineering, University at Buffalo, State University of New York, Amherst, NY, United States
| | - Nasser Shakhssalim
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seeram Ramakrishna
- Department of Mechanical Engineering, National University of Singapore, Singapore, Singapore
| | - Mohammad Naji
- Urology and Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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4
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Zhu W, Nie X, Tao Q, Yao H, Wang DA. Interactions at engineered graft-tissue interfaces: A review. APL Bioeng 2020; 4:031502. [PMID: 32844138 PMCID: PMC7443169 DOI: 10.1063/5.0014519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 07/27/2020] [Indexed: 02/06/2023] Open
Abstract
The interactions at the graft-tissue interfaces are critical for the results of engraftments post-implantation. To improve the success rate of the implantations, as well as the quality of the patients' life, understanding the possible reactions between artificial materials and the host tissues is helpful in designing new generations of material-based grafts aiming at inducing specific responses from surrounding tissues for their own reparation and regeneration. To help researchers understand the complicated interactions that occur after implantations and to promote the development of better-designed grafts with improved biocompatibility and patient responses, in this review, the topics will be discussed from the basic reactions that occur chronologically at the graft-tissue interfaces after implantations to the existing and potential applications of the mechanisms of such reactions in designing of grafts. It offers a chance to bring up-to-date advances in the field and new strategies of controlling the graft-tissue interfaces.
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Affiliation(s)
- Wenzhen Zhu
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457
| | - Xiaolei Nie
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457
| | - Qi Tao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, Jiangsu, People's Republic of China
| | - Hang Yao
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, Jiangsu, People's Republic of China
| | - Dong-An Wang
- Authors to whom correspondence should be addressed: and
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5
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Ha SS, Song ES, Du P, Suhaeri M, Lee JH, Park K. Novel ECM Patch Combines Poly(vinyl alcohol), Human Fibroblast-Derived Matrix, and Mesenchymal Stem Cells for Advanced Wound Healing. ACS Biomater Sci Eng 2020; 6:4266-4275. [PMID: 33463354 DOI: 10.1021/acsbiomaterials.0c00657] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Decellularized extracellular matrix (ECM)-based scaffold has been a very useful resource for effective tissue regeneration. In this study, we report a novel ECM patch that physically combines human fibroblast-derived matrix (hFDM) and poly(vinyl alcohol) (PVA) hydrogel. hFDM was obtained after decellularization of in vitro cultured human fibroblasts. We investigated the basic characteristics of hFDM alone using immunofluorescence (fibronectin, collagen type I) and angiogenesis-related factor analysis. Successful incorporation of hFDM with PVA produced an hFDM/PVA patch, which showed excellent cytocompatibility with human mesenchymal stem cells (hMSCs), as assessed via cell adhesion, viability, and proliferation. Moreover, in vitro scratch assay using human dermal fibroblasts showed a significant improvement of cell migration when treated with the paracrine factors originated from the hMSC-incorporated hFDM. To evaluate the therapeutic effect on wound healing, hMSCs were seeded on the hFDM/PVA patch and they were then transplanted into a mouse full-thickness wound model. Among four experimental groups (control, PVA, hFDM/PVA, hMSC/hFDM/PVA), we found that hMSC/hFDM/PVA patch accelerated the wound closure with time. More notably, histology and immunofluorescence demonstrated that compared to the other interventions tested, hMSC/hFDM/PVA patch could lead to significantly advanced tissue regeneration, as confirmed via nearly normal epidermis thickness, skin adnexa regeneration (hair follicle), mature collagen deposition, and neovascularization. Additionally, cell tracking of prelabeled hMSCs suggests the in vivo retention of transplanted cells in the wound region after the transplantation of hMSC/hFDM/PVA patch. Taken together, our engineered ECM patch supports a strong regenerative potential toward advanced wound healing.
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Affiliation(s)
- Sang Su Ha
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Eui Sun Song
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
| | - Ping Du
- Center for Human Tissues & Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong 518055, China
| | - Muhammad Suhaeri
- Unit of Education, Research, and Training, Universitas Indonesia Hospital, Universitas Indonesia, Depok 16424, Indonesia
| | - Jong Ho Lee
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea
| | - Kwideok Park
- Center for Biomaterials, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.,Division of Bio-Medical Science and Technology, KIST School, University of Science and Technology (UST), Seoul 02792, Republic of Korea
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6
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Tseng SJ, Huang ST, Wu CC, Cheng CH, Lin JC. Studies of proliferation and chondrogenic differentiation of rat adipose stem cells using an anti-oxidative polyurethane scaffold combined with cyclic compression culture. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 112:110964. [PMID: 32409092 DOI: 10.1016/j.msec.2020.110964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 03/21/2020] [Accepted: 04/11/2020] [Indexed: 02/08/2023]
Abstract
The adipose stem cell is a potential candidate for the autologous chondrocytes repairing approach because of the abundance of fat in the animal body and its versatile differentiation capability. In this study, rat adipose stem cells (rASCs) were seeded into anti-oxidative N-acetylcysteine (NAC) grafted polyurethane (PU) scaffold and then combined with short dynamic compressive stimulation (24 h) to induce rASCs chondrogenesis differentiation in vitro. The inner pore surface of the PU scaffold was first modified via alginate and type I collagen to promote rASCs adherence. The modified layers crosslinked by genipin showed outstanding stability after ultrasonic treatment, indicating the modified layers were stable and can keep the cells adhesion well during dynamic compressive stimulation. After inner pore surface modification and 10 mM NAC grafting, the PU scaffold-A-C-G (graft 10 mM NAC) has shown the best proliferation efficiency with homogeneous cell distribution after 72hr static culture. After short term dynamic compressive stimulation, significant gene expression in chondrogenic markers, Sox-9, and Aggrecan, were noted in both PU scaffold-A-C-G and PU scaffold-A-C-G (graft 10 mM NAC). Considering the cell proliferation efficiency and gene expression, the anti-oxidative NAC grafted PU scaffold combined with short term dynamic compressive stimulation could be useful for cell culturing in stem cell therapy.
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Affiliation(s)
- Shen-Jui Tseng
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Shih-Ting Huang
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan
| | - Chia-Ching Wu
- Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chi-Hui Cheng
- Department of Pediatrics, College of Medicine, Chang Gung University, Chang Gung Memorial Hospital, Taoyuan 33305, Taiwan.
| | - Jui-Che Lin
- Department of Chemical Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
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7
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He X, Tang K, Li X, Wang F, Liu J, Zou F, Yang M, Li M. A porous collagen-carboxymethyl cellulose/hydroxyapatite composite for bone tissue engineering by bi-molecular template method. Int J Biol Macromol 2019; 137:45-53. [PMID: 31220495 DOI: 10.1016/j.ijbiomac.2019.06.098] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 06/11/2019] [Accepted: 06/13/2019] [Indexed: 12/17/2022]
Abstract
Inspired by the mechanism of bone formation, a porous collagen-carboxymethyl cellulose/hydroxyapatite (Col-CMC/HA) composite was designed and fabricated using a biomimetic template of Col and CMC protein-polysaccharide bi-molecules. The morphology, composition and physical properties of Col-CMC/HA composites were characterized systematically. It was found that the nano-HA homogenously distributed on the surface of Col-CMC bi-templates while the composite presented 3D porous structure with pore size from 100 μm to 300 μm. The porosities of composites were located at the range of 71%-85%. Besides, the compressive strength of composites was highly depended on the ratio of Col to CMC in the organic template. The optimized composite in respect to physical properties showed a compressive strength as high as 7.06 MPa, quite close to that of natural bone. The high relative growth rate of wild-type mouse embryonic fibroblasts cells was found for the composite, indicating a good biocompatibility. The organic-inorganic composite also behaved good in collagenase resistance and could be biodegraded in 8 weeks, with about 50% of initial weight left at the ratio of Col to CMC of 1:9. The results demonstrated that the Col-CMC/HA composite by bi-molecular template method was a rational and safe method to prepare biomaterials with tunable properties.
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Affiliation(s)
- Xichan He
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Keyong Tang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China.
| | - Xiumin Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Fang Wang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Jie Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Fangfang Zou
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Mengyuan Yang
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
| | - Meixuan Li
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450000, PR China
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8
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Tissue-Inspired Interfacial Coatings for Regenerative Medicine. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1077:415-420. [PMID: 30357701 DOI: 10.1007/978-981-13-0947-2_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Biomedical devices have come a long way since they were first introduced as a medically interventional methodology in treating various types of diseases. Different techniques were employed to make the devices more biocompatible and promote tissue repair; such as chemical surface modifications, using novel materials as the bulk of a device, physical topological manipulations and so forth. One of the strategies that recently gained a lot of attention is the use of tissue-inspired biomaterials that are coated on the surface of biomedical devices via different coating techniques, such as the use of extracellular matrix (ECM) coatings, extracted cell membrane coatings, and so on. In this chapter, we will give a general overview of the different types of tissue-inspired coatings along with a summary of recent studies reported in this scientific arena.
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Campodoni E, Heggset EB, Rashad A, Ramírez-Rodríguez GB, Mustafa K, Syverud K, Tampieri A, Sandri M. Polymeric 3D scaffolds for tissue regeneration: Evaluation of biopolymer nanocomposite reinforced with cellulose nanofibrils. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 94:867-878. [PMID: 30423774 DOI: 10.1016/j.msec.2018.10.026] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Revised: 07/30/2018] [Accepted: 10/04/2018] [Indexed: 10/28/2022]
Abstract
Biopolymers such as gelatin (Gel) and cellulose nanofibrils (CNF) have many of the essential requirements for being used as scaffolding materials in tissue regeneration; biocompatibility, surface chemistry, ability to generate homogeneous hydrogels and 3D structures with suitable pore size and interconnection, which allows cell colonization and proliferation. The purpose of this study was to investigate whether the mechanical behaviour of the Gel matrix can be improved by means of functionalization with cellulose nanofibrils and proper cross-linking treatments. Blending processes were developed to achieve a polymer nanocomposite incorporating the best features of both biopolymers: biomimicry of the Gel and structural reinforcement by the CNF. The designed 3D structures underline interconnected porosity achieved by freeze-drying process, improved mechanical properties and chemical stability that are tailored by CNF addition and different cross-linking approaches. In vitro evaluations reveal the preservation of the biocompatibility of Gel and its good interaction with cells by promoting cell colonization and proliferation. The results support the addition of cellulose nanofibrils to improve the mechanical behaviour of 3D porous structures suitable as scaffolding for tissue regeneration.
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Affiliation(s)
- Elisabetta Campodoni
- Institute of Science and Technology for Ceramics-National Research Council (ISTEC-CNR), Faenza, Italy.
| | | | - Ahmad Rashad
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Gloria B Ramírez-Rodríguez
- BioNanoMetals Group, Department of Inorganic Chemistry, Facultad de Ciencias, Universidad de Granada, Granada
| | - Kamal Mustafa
- Department of Clinical Dentistry, University of Bergen, Bergen, Norway
| | - Kristin Syverud
- RISE-PFI, Trondheim, Norway; Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - Anna Tampieri
- Institute of Science and Technology for Ceramics-National Research Council (ISTEC-CNR), Faenza, Italy
| | - Monica Sandri
- Institute of Science and Technology for Ceramics-National Research Council (ISTEC-CNR), Faenza, Italy.
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Wang C, Jiang W, Zuo W, Han G, Zhang Y. Effect of heat-transfer capability on micropore structure of freeze-drying alginate scaffold. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:944-949. [PMID: 30274131 DOI: 10.1016/j.msec.2018.08.055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 06/15/2018] [Accepted: 08/29/2018] [Indexed: 12/20/2022]
Abstract
Biodegradable porous scaffold is widely used in the field of tissue engineering. Scaffolds were required to have proper microstructure with suitable size, gradient, shape and porosity to mimic the specific three-dimensional structure of extracellular matrix. Taken the simple technique of freeze-drying, the nucleation and growth of ice crystals were affected by thermal behavior of solution during freezing process, which could be controlled to tailor and predict the pore structure in scaffold. This paper aimed to reveal the effect of containers' heat-transfer capability on the thermal behaviors of solution, and then its influence to pore structure in scaffold. Four containers with different heat transfer capacity were adopted for cooling model to achieve different thermal characterizations within solution during cooling process. The vertical cross-section of scaffold was observed by scanning electron microscopy. The porosity and tensile properties of scaffold were measured to depict scaffold characteristics. Scaffolds fabricated by containers with λ/d = 20,000, 3000 and 450 W/m2·°C showed cellular pores with gradient. With the decrease of λ/d, pores in scaffold were enlarged, and the wall between neighboring pores also became thicker. Pillared pores were produced only in container with λ/d = 50 W/m2·°C, oriented along the vertical direction without gradient. This process demonstrated that by altering the container of cooling model, scaffold microstructure could be tailored.
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Affiliation(s)
- Conger Wang
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, PR China
| | - Wei Jiang
- College of Textiles and Fashion, Qingdao University, Qingdao 266071, PR China
| | - Wenqian Zuo
- College of Textiles and Fashion, Qingdao University, Qingdao 266071, PR China
| | - Guangting Han
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, PR China
| | - Yuanming Zhang
- State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266071, PR China.
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Future Research Directions in the Design of Versatile Extracellular Matrix in Tissue Engineering. Int Neurourol J 2018; 22:S66-75. [PMID: 30068068 PMCID: PMC6077942 DOI: 10.5213/inj.1836154.077] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 07/12/2018] [Indexed: 12/19/2022] Open
Abstract
Native and artificial extracellular matrices (ECMs) have been widely applied in biomedical fields as one of the most effective components in tissue regeneration. In particular, ECM-based drugs are expected to be applied to treat diseases in organs relevant to urology, because tissue regeneration is particularly important for preventing the recurrence of these diseases. Native ECMs provide a complex in vivo architecture and native physical and mechanical properties that support high biocompatibility. However, the applications of native ECMs are limited due to their tissue-specificity and chemical complexity. Artificial ECMs have been fabricated in an attempt to create a broadly applicable scaffold by using controllable components and a uniform formulation. On the other hands, artificial ECMs fail to mimic the properties of a native ECM; consequently, their applications in tissues are also limited. For that reason, the design of a versatile, hybrid ECM that can be universally applied to various tissues is an emerging area of interest in the biomedical field.
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Wu S, Chen MS, Maurel P, Lee YS, Bunge MB, Arinzeh TL. Aligned fibrous PVDF-TrFE scaffolds with Schwann cells support neurite extension and myelination in vitro. J Neural Eng 2018; 15:056010. [PMID: 29794323 DOI: 10.1088/1741-2552/aac77f] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Polyvinylidene fluoride-trifluoroethylene (PVDF-TrFE), which is a piezoelectric, biocompatible polymer, holds promise as a scaffold in combination with Schwann cells (SCs) for spinal cord repair. Piezoelectric materials can generate electrical activity in response to mechanical deformation, which could potentially stimulate spinal cord axon regeneration. Our goal in this study was to investigate PVDF-TrFE scaffolds consisting of aligned fibers in supporting SC growth and SC-supported neurite extension and myelination in vitro. APPROACH Aligned fibers of PVDF-TrFE were fabricated using the electrospinning technique. SCs and dorsal root ganglion (DRG) explants were co-cultured to evaluate SC-supported neurite extension and myelination on PVDF-TrFE scaffolds. MAIN RESULTS PVDF-TrFE scaffolds supported SC growth and neurite extension, which was further enhanced by coating the scaffolds with Matrigel. SCs were oriented and neurites extended along the length of the aligned fibers. SCs in co-culture with DRGs on PVDF-TrFE scaffolds promoted longer neurite extension as compared to scaffolds without SCs. In addition to promoting neurite extension, SCs also formed myelin around DRG neurites on PVDF-TrFE scaffolds. SIGNIFICANCE This study demonstrated PVDF-TrFE scaffolds containing aligned fibers supported SC-neurite extension and myelination. The combination of SCs and PVDF-TrFE scaffolds may be a promising tissue engineering strategy for spinal cord repair.
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Affiliation(s)
- Siliang Wu
- Materials Science and Engineering Program, New Jersey Institute of Technology, Newark, NJ 07102, United States of America
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13
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Smolar J, Horst M, Sulser T, Eberli D. Bladder regeneration through stem cell therapy. Expert Opin Biol Ther 2018; 18:525-544. [DOI: 10.1080/14712598.2018.1439013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jakub Smolar
- Department of Urology, University Hospital Zurich, Schlieren, Switzerland
| | - Maya Horst
- Department of Urology, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Tulio Sulser
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
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14
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Substrate-mediated gene transduction of LAMA3 for promoting biological sealing between titanium surface and gingival epithelium. Colloids Surf B Biointerfaces 2018; 161:314-323. [DOI: 10.1016/j.colsurfb.2017.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 10/06/2017] [Accepted: 10/10/2017] [Indexed: 11/22/2022]
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15
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Rampichová M, Košt'áková Kuželová E, Filová E, Chvojka J, Šafka J, Pelcl M, Daňková J, Prosecká E, Buzgo M, Plencner M, Lukáš D, Amler E. Composite 3D printed scaffold with structured electrospun nanofibers promotes chondrocyte adhesion and infiltration. Cell Adh Migr 2017; 12:271-285. [PMID: 29130836 DOI: 10.1080/19336918.2017.1385713] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Additive manufacturing, also called 3D printing, is an effective method for preparing scaffolds with defined structure and porosity. The disadvantage of the technique is the excessive smoothness of the printed fibers, which does not support cell adhesion. In the present study, a 3D printed scaffold was combined with electrospun classic or structured nanofibers to promote cell adhesion. Structured nanofibers were used to improve the infiltration of cells into the scaffold. Electrospun layers were connected to 3D printed fibers by gluing, thus enabling the fabrication of scaffolds with unlimited thickness. The composite 3D printed/nanofibrous scaffolds were seeded with primary chondrocytes and tested in vitro for cell adhesion, proliferation and differentiation. The experiment showed excellent cell infiltration, viability, and good cell proliferation. On the other hand, partial chondrocyte dedifferentiation was shown. Other materials supporting chondrogenic differentiation will be investigated in future studies.
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Affiliation(s)
- M Rampichová
- a University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague , Buštěhrad , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - E Košt'áková Kuželová
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - E Filová
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - J Chvojka
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - J Šafka
- d Technical University of Liberec , Department of Manufacturing Systems and Automatization , Liberec , Czech Republic
| | - M Pelcl
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - J Daňková
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - E Prosecká
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - M Buzgo
- a University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague , Buštěhrad , Czech Republic
| | - M Plencner
- b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
| | - D Lukáš
- c Technical University of Liberec , Department of Nonwovens and Nanofibrous Materials , Liberec , Czech Republic
| | - E Amler
- a University Center for Energy Efficient Buildings (UCEEB), Czech Technical University in Prague , Buštěhrad , Czech Republic.,b Laboratory of Tissue Engineering, Institute of Experimental Medicine, Czech Academy of Sciences , Prague , Czech Republic
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16
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Yang Z, Si J, Cui Z, Ye J, Wang X, Wang Q, Peng K, Chen W, Chen SC. Biomimetic composite scaffolds based on surface modification of polydopamine on electrospun poly(lactic acid)/cellulose nanofibrils. Carbohydr Polym 2017; 174:750-759. [DOI: 10.1016/j.carbpol.2017.07.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Revised: 06/30/2017] [Accepted: 07/05/2017] [Indexed: 01/28/2023]
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17
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Surface biofunctionalization of three-dimensional porous poly(lactic acid) scaffold using chitosan/OGP coating for bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 77:92-101. [DOI: 10.1016/j.msec.2017.03.220] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 01/09/2017] [Accepted: 03/24/2017] [Indexed: 11/24/2022]
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Chen L, Wu Z, Zhou Y, Li L, Wang Y, Wang Z, Chen Y, Zhang P. Biomimetic porous collagen/hydroxyapatite scaffold for bone tissue engineering. J Appl Polym Sci 2017. [DOI: 10.1002/app.45271] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Li Chen
- School of Pharmaceutical Sciences; Jilin University; Changchun 130021 People's Republic of China
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Zhenxu Wu
- School of Pharmaceutical Sciences; Jilin University; Changchun 130021 People's Republic of China
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
| | - Yulai Zhou
- School of Pharmaceutical Sciences; Jilin University; Changchun 130021 People's Republic of China
| | - Linlong Li
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100039 People's Republic of China
| | - Yu Wang
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100039 People's Republic of China
| | - Zongliang Wang
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100039 People's Republic of China
| | - Yue Chen
- School of Pharmaceutical Sciences; Jilin University; Changchun 130021 People's Republic of China
| | - Peibiao Zhang
- Key Laboratory of Polymer Ecomaterials; Changchun Institute of Applied Chemistry, Chinese Academy of Sciences; Changchun 130022 People's Republic of China
- University of Chinese Academy of Sciences; Beijing 100039 People's Republic of China
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Abstract
Reconstructive urologists are constantly facing diverse and complex pathologies that require structural and functional restoration of urinary organs. There is always a demand for a biocompatible material to repair or substitute the urinary tract instead of using patient's autologous tissues with its associated morbidity. Biomimetic approaches are tissue-engineering tactics aiming to tailor the material physical and biological properties to behave physiologically similar to the urinary system. This review highlights the different strategies to mimic urinary tissues including modifications in structure, surface chemistry, and cellular response of a range of biological and synthetic materials. The article also outlines the measures to minimize infectious complications, which might lead to graft failure. Relevant experimental and preclinical studies are discussed, as well as promising biomimetic approaches such as three-dimensional bioprinting.
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Affiliation(s)
- Moustafa M Elsawy
- Division of Surgery and Interventional Science, Royal Free Hospital, NHS Trust, University College London (UCL)
- Division of Reconstructive Urology, University College London Hospitals (uclh), London, UK
- Urology Department, School of Medicine, Alexandria University, Alexandria, Egypt
| | - Achala de Mel
- Division of Surgery and Interventional Science, Royal Free Hospital, NHS Trust, University College London (UCL)
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20
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Ruff S, Keller S, Wieland D, Wittmann V, Tovar G, Bach M, Kluger P. clickECM: Development of a cell-derived extracellular matrix with azide functionalities. Acta Biomater 2017; 52:159-170. [PMID: 27965173 DOI: 10.1016/j.actbio.2016.12.022] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 10/21/2016] [Accepted: 12/07/2016] [Indexed: 01/06/2023]
Abstract
In vitro cultured cells produce a complex extracellular matrix (ECM) that remains intact after decellularization. The biological complexity derived from the variety of distinct ECM molecules makes these matrices ideal candidates for biomaterials. Biomaterials with the ability to guide cell function are a topic of high interest in biomaterial development. However, these matrices lack specific addressable functional groups, which are often required for their use as a biomaterial. Due to the biological complexity of the cell-derived ECM, it is a challenge to incorporate such functional groups without affecting the integrity of the biomolecules within the ECM. The azide-alkyne cycloaddition (click reaction, Huisgen-reaction) is an efficient and specific ligation reaction that is known to be biocompatible when strained alkynes are used to avoid the use of copper (I) as a catalyst. In our work, the ubiquitous modification of a fibroblast cell-derived ECM with azides was achieved through metabolic oligosaccharide engineering by adding the azide-modified monosaccharide Ac4GalNAz (1,3,4,6-tetra-O-acetyl-N-azidoacetylgalactosamine) to the cell culture medium. The resulting azide-modified network remained intact after removing the cells by lysis and the molecular structure of the ECM proteins was unimpaired after a gentle homogenization process. The biological composition was characterized in order to show that the functionalization does not impair the complexity and integrity of the ECM. The azides within this "clickECM" could be accessed by small molecules (such as an alkyne-modified fluorophore) or by surface-bound cyclooctynes to achieve a covalent coating with clickECM. STATEMENT OF SIGNIFICANCE The clickECM was produced by the incorporation of azide-functionalized sugar analogues into the extracellular glycans of fibroblast cell cultures by metabolic oligosaccharide engineering. By introducing these azide groups into the glycan structures, we enabled this cell-derived ECM for bioorthogonal click reactions. Click chemistry provides extremely specific reactions with high efficiency, high selectivity, and high reaction yields. We could show that the azide functionalities within the clickECM are chemically accessible. Based on our here described clickECM technique it will be possible to create and investigate new clickECM materials with tunable bioactive properties and additional functionalities, which offers a promising approach for basic and applied research in the field of biomaterial science, biomedical applications, and tissue engineering.
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21
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Zhang H, Xia J, Pang X, Zhao M, Wang B, Yang L, Wan H, Wu J, Fu S. Magnetic nanoparticle-loaded electrospun polymeric nanofibers for tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 73:537-543. [DOI: 10.1016/j.msec.2016.12.116] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 11/29/2016] [Accepted: 12/22/2016] [Indexed: 02/01/2023]
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22
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Cui Z, Lin L, Si J, Luo Y, Wang Q, Lin Y, Wang X, Chen W. Fabrication and characterization of chitosan/OGP coated porous poly(ε-caprolactone) scaffold for bone tissue engineering. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:826-845. [PMID: 28278041 DOI: 10.1080/09205063.2017.1303867] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
As one of the stimulators on bone formation, osteogenic growth peptide (OGP) improves both proliferation and differentiation of the bone cells in vitro and in vivo. The aim of this work was the preparation of three dimensional porous poly(ε-caprolactone) (PCL) scaffold with high porosity, well interpore connectivity, and then its surface was modified by using chitosan (CS)/OGP coating for application in bone regeneration. In present study, the properties of porous PCL and CS/OGP coated PCL scaffold, including the microstructure, water absorption, porosity, hydrophilicity, mechanical properties, and biocompatibility in vitro were investigated. Results showed that the PCL and CS/OGP-PCL scaffold with an interconnected network structure have a porosity of more than 91.5, 80.8%, respectively. The CS/OGP-PCL scaffold exhibited better hydrophilicity and mechanical properties than that of uncoated PCL scaffold. Moreover, the results of cell culture test showed that CS/OGP coating could stimulate the proliferation and growth of osteoblast cells on CS/OGP-PCL scaffold. These finding suggested that the surface modification could be a effective method on enhancing cell adhesion to synthetic polymer-based scaffolds in tissue engineering application and the developed porous CS/OGP-PCL scaffold should be considered as alternative biomaterials for bone regeneration.
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Affiliation(s)
- Zhixiang Cui
- a School of Materials Science and Engineering, Fujian University of Technology , Fuzhou , China.,b Fujian Provincial Key Laboratory of Advanced Materials Processing and Application , Fuzhou , China.,c School of Materials Science and Engineering, Fuzhou University , Fuzhou , China.,d National Center for International Research of Micro-nano Molding Technology & Key Laboratory for Micro Molding Technology of Henan Province , Zhengzhou University , Zhengzhou , China
| | - Luyin Lin
- a School of Materials Science and Engineering, Fujian University of Technology , Fuzhou , China.,b Fujian Provincial Key Laboratory of Advanced Materials Processing and Application , Fuzhou , China
| | - Junhui Si
- a School of Materials Science and Engineering, Fujian University of Technology , Fuzhou , China.,b Fujian Provincial Key Laboratory of Advanced Materials Processing and Application , Fuzhou , China
| | - Yufei Luo
- e School of Pharmacy, Fujian Medical University , Fuzhou , China
| | - Qianting Wang
- a School of Materials Science and Engineering, Fujian University of Technology , Fuzhou , China.,b Fujian Provincial Key Laboratory of Advanced Materials Processing and Application , Fuzhou , China
| | - Yongnan Lin
- a School of Materials Science and Engineering, Fujian University of Technology , Fuzhou , China.,b Fujian Provincial Key Laboratory of Advanced Materials Processing and Application , Fuzhou , China
| | - Xiaofeng Wang
- d National Center for International Research of Micro-nano Molding Technology & Key Laboratory for Micro Molding Technology of Henan Province , Zhengzhou University , Zhengzhou , China
| | - Wenzhe Chen
- a School of Materials Science and Engineering, Fujian University of Technology , Fuzhou , China.,b Fujian Provincial Key Laboratory of Advanced Materials Processing and Application , Fuzhou , China.,c School of Materials Science and Engineering, Fuzhou University , Fuzhou , China
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Browne BM, Vanni AJ. Use of Alternative Techniques and Grafts in Urethroplasty. Urol Clin North Am 2017; 44:127-140. [DOI: 10.1016/j.ucl.2016.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Alberti C. Whyever bladder tissue engineering clinical applications still remain unusual even though many intriguing technological advances have been reached? G Chir 2017; 37:6-12. [PMID: 27142819 DOI: 10.11138/gchir/2016.37.1.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
To prevent problematic outcomes of bowel-based bladder reconstructive surgery, such as prosthetic tumors and systemic metabolic complications, research works, to either regenerate and strengthen failing organ or build organ replacement biosubstitute, have been turned, from 90s of the last century, to both regenerative medicine and tissue engineering.Various types of acellular matrices, naturally-derived materials, synthetic polymers have been used for either "unseeded" (cell free) or autologous "cell seeded" tissue engineering scaffolds. Different categories of cell sources - from autologous differentiated urothelial and smooth muscle cells to natural or laboratory procedure-derived stem cells - have been taken into consideration to reach the construction of suitable "cell seeded" templates. Current clinically validated bladder tissue engineering approaches essentially consist of augmentation cystoplasty in patients suffering from poorly compliant neuropathic bladder. No clinical applications of wholly tissue engineered neobladder have been carried out to radical-reconstructive surgical treatment of bladder malignancies or chronic inflammation-due vesical coarctation. Reliable reasons why bladder tissue engineering clinical applications so far remain unusual, particularly imply the risk of graft ischemia, hence its both fibrous contraction and even worse perforation. Therefore, the achievement of graft vascular network (vasculogenesis) could allow, together with the promotion of host surrounding vessel sprouting (angiogenesis), an effective graft blood supply, so avoiding the ischemia-related serious complications.
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Smolar J, Salemi S, Horst M, Sulser T, Eberli D. Stem Cells in Functional Bladder Engineering. Transfus Med Hemother 2016; 43:328-335. [PMID: 27781020 PMCID: PMC5073506 DOI: 10.1159/000447977] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 06/23/2016] [Indexed: 12/24/2022] Open
Abstract
Conditions impairing bladder function in children and adults, such as myelomeningocele, posterior urethral valves, bladder exstrophy or spinal cord injury, often need urinary diversion or augmentation cystoplasty as when untreated they may cause severe bladder dysfunction and kidney failure. Currently, the gold standard therapy of end-stage bladder disease refractory to conservative management is enterocystoplasty, a surgical enlargement of the bladder with intestinal tissue. Despite providing functional improvement, enterocystoplasty is associated with significant long-term complications, such as recurrent urinary tract infections, metabolic abnormalities, stone formation, and malignancies. Therefore, there is a strong clinical need for alternative therapies for these reconstructive procedures, of which stem cell-based tissue engineering (TE) is considered to be the most promising future strategy. This review is focused on the recent progress in bladder stem cell research and therapy and the challenges that remain for the development of a functional bladder wall.
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Affiliation(s)
- Jakub Smolar
- Laboratory for Tissue Engineering and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Souzan Salemi
- Laboratory for Tissue Engineering and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Maya Horst
- Division of Pediatric Urology, Department of Pediatric Surgery, University Children's Hospital, Zurich, Switzerland
| | - Tullio Sulser
- Laboratory for Tissue Engineering and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Laboratory for Tissue Engineering and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland
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26
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Sun JK, Antonietti M, Yuan J. Nanoporous ionic organic networks: from synthesis to materials applications. Chem Soc Rev 2016; 45:6627-6656. [DOI: 10.1039/c6cs00597g] [Citation(s) in RCA: 133] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review highlights the recent progress made in the study of the synthesis of nanoporous ionic organic networks (NIONs) and their promising applications.
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Affiliation(s)
- Jian-Ke Sun
- Max Planck Institute of Colloids and Interfaces
- Department of Colloid Chemistry
- D-14424 Potsdam
- Germany
| | - Markus Antonietti
- Max Planck Institute of Colloids and Interfaces
- Department of Colloid Chemistry
- D-14424 Potsdam
- Germany
| | - Jiayin Yuan
- Max Planck Institute of Colloids and Interfaces
- Department of Colloid Chemistry
- D-14424 Potsdam
- Germany
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