IMR OpenIR
Bioinspired Engineering of Poly(ethylene glycol) Hydrogels and Natural Protein Fibers for Layered Heart Valve Constructs
Li, Qian; Bai, Yun; Jin, Tao; Wang, Shuo; Cui, Wei; Stanciulescu, Ilinca; Yang, Rui; Nie, Hemin; Wang, Linshan; Zhang, Xing; Zhang, X (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Wang, LS (reprint author), Northeastern Univ, Dept Chem, Shenyang 110004, Liaoning, Peoples R China.; Nie, HM (reprint author), Hunan Univ, Coll Life Sci, Inst Bionanotechnol & Tissue Engn, Changsha 410082, Hunan, Peoples R China.; Zhang, X (reprint author), Univ Sci & Technol China, Sch Mat Sci, Hefei 230026, Anhui, Peoples R China.
2017-05-17
Source PublicationACS APPLIED MATERIALS & INTERFACES
ISSN1944-8244
Volume9Issue:19Pages:16524-16535
AbstractLayered constructs from poly(ethylene glycol) (PEG) hydrogels and chicken eggshell membranes (ESMs) are fabricated, which can be further cross-linked by glutaraldehyde (GA) to form GA-PEG-ESM composites. Our results indicate that ESMs composed of protein fibrous networks show elastic moduli similar to 3.3-5.0 MPa and elongation percentages similar to 47-56%, close to human heart valve leaflets. Finite element simulations reveal obvious stress concentration on a partial number of fibers in the GA-cross-linked ESM (GA-ESM) samples, which can be alleviated by efficient stress distribution among multiple layers of ESMs embedded in PEG hydrogels. Moreover, the polymeric networks of PEG hydrogels can prevent mineral deposition and enzyme degradation of protein fibers from incorporated ESMs. The fibrous structures of ESMs retain in the GA-PEG-ESM samples after subcutaneous implantation for 4 weeks, while those from ESM and GA-ESM samples show early degradation to certain extent, suggesting the prevention of enzymatic degradation of protein fibers by the polymeric network of PEG hydrogels in vivo. Thus, these GA-PEG-ESM layered constructs show heterogenic structures and mechanical properties comparable to heart valve leaflets, as well as improved functions to prevent progressive calcification and enzymatic degeneration, which are likely used for artificial heart valves.; Layered constructs from poly(ethylene glycol) (PEG) hydrogels and chicken eggshell membranes (ESMs) are fabricated, which can be further cross-linked by glutaraldehyde (GA) to form GA-PEG-ESM composites. Our results indicate that ESMs composed of protein fibrous networks show elastic moduli similar to 3.3-5.0 MPa and elongation percentages similar to 47-56%, close to human heart valve leaflets. Finite element simulations reveal obvious stress concentration on a partial number of fibers in the GA-cross-linked ESM (GA-ESM) samples, which can be alleviated by efficient stress distribution among multiple layers of ESMs embedded in PEG hydrogels. Moreover, the polymeric networks of PEG hydrogels can prevent mineral deposition and enzyme degradation of protein fibers from incorporated ESMs. The fibrous structures of ESMs retain in the GA-PEG-ESM samples after subcutaneous implantation for 4 weeks, while those from ESM and GA-ESM samples show early degradation to certain extent, suggesting the prevention of enzymatic degradation of protein fibers by the polymeric network of PEG hydrogels in vivo. Thus, these GA-PEG-ESM layered constructs show heterogenic structures and mechanical properties comparable to heart valve leaflets, as well as improved functions to prevent progressive calcification and enzymatic degeneration, which are likely used for artificial heart valves.
description.department[li, qian ; bai, yun ; cui, wei ; yang, rui ; zhang, xing] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, liaoning, peoples r china ; [li, qian ; wang, linshan] northeastern univ, dept chem, shenyang 110004, liaoning, peoples r china ; [jin, tao ; stanciulescu, ilinca] rice univ, dept civil & environm engn, houston, tx 77005 usa ; [wang, shuo ; nie, hemin] hunan univ, coll life sci, inst bionanotechnol & tissue engn, changsha 410082, hunan, peoples r china ; [yang, rui ; zhang, xing] univ sci & technol china, sch mat sci, hefei 230026, anhui, peoples r china
KeywordHeart Valves Poly(Ethylene Glycol) Hydrogels Protein Fibers Layered Structures Calcification Enzymatic Degradation
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
Funding OrganizationNational Natural Science Foundation of China [31300788, 31670981]; Chinese Academy of Sciences
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78131
Collection中国科学院金属研究所
Corresponding AuthorZhang, X (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China.; Wang, LS (reprint author), Northeastern Univ, Dept Chem, Shenyang 110004, Liaoning, Peoples R China.; Nie, HM (reprint author), Hunan Univ, Coll Life Sci, Inst Bionanotechnol & Tissue Engn, Changsha 410082, Hunan, Peoples R China.; Zhang, X (reprint author), Univ Sci & Technol China, Sch Mat Sci, Hefei 230026, Anhui, Peoples R China.
Recommended Citation
GB/T 7714
Li, Qian,Bai, Yun,Jin, Tao,et al. Bioinspired Engineering of Poly(ethylene glycol) Hydrogels and Natural Protein Fibers for Layered Heart Valve Constructs[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(19):16524-16535.
APA Li, Qian.,Bai, Yun.,Jin, Tao.,Wang, Shuo.,Cui, Wei.,...&Zhang, X .(2017).Bioinspired Engineering of Poly(ethylene glycol) Hydrogels and Natural Protein Fibers for Layered Heart Valve Constructs.ACS APPLIED MATERIALS & INTERFACES,9(19),16524-16535.
MLA Li, Qian,et al."Bioinspired Engineering of Poly(ethylene glycol) Hydrogels and Natural Protein Fibers for Layered Heart Valve Constructs".ACS APPLIED MATERIALS & INTERFACES 9.19(2017):16524-16535.
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