来自葡萄种子蛋白和奇托桑的多功能软骨模仿水凝
Na Wang1, Hanyu Ren1, Tongtong Li1
1School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, 750021, PR China.
International journal of biological macromolecules
|February 1, 2026
概括
这项研究开发了一种用于软骨置换的新型SPA水凝,实现了抗菌,抗,滑和湿粘性,具有出色的机械强度和生物相容性.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 聚合物化学 聚合物化学
背景情况:
- 设计具有多种先进特性 (抗菌,防,滑,湿粘,高机械强度) 的水凝对于有效的关节软骨替换至关重要.
- 当前的挑战在于在单一的水凝系统中同时实现这种特性组合.
研究的目的:
- 开发一种多功能水凝 (SPA凝),模仿关节软骨特性,用于潜在的软骨置换应用.
- 将抗菌,防,滑和湿粘功能整合到机械强大的水凝基质中.
主要方法:
- 使用多重链接制造具有高压力 (42 MPa) 的聚乙烯醇,葡萄蛋白和奇托 (PCG) 矩阵.
- 添加硫贝甲基酸盐,用于抗和滑性能.
- 使用大豆莱西丁 (SL) 自组合剂对抗菌作用进行囊化西普洛素 (CIP).
- 用凝-酸层涂层,以增强湿粘度.
主要成果:
- 该SPA凝显著增强了对大肠杆菌 (2250%的增加) 和黄金色杆菌 (1700%的增加) 的抗菌功效,实现了~100%的细菌抑制.
- 一个边界滑层将摩擦系数降低到0.018.
- 由于氨基酸和多基,水凝表现出强大的湿粘度.
- 高细胞活力 (96.7%) 证实了出色的细胞相容性.
结论:
- 开发的SPA水凝成功地整合了关节软骨置换的多种必要性质,包括机械强度,滑性,粘附性和抗菌活性.
- 仿生设计复制了本地软骨结构和功能,为先进的软骨修复策略提供了一个有前途的候选人.
- 使用生物相容材料和绿色工艺突出了临床转化潜力.
相关概念视频
Seed Structure and Early Development of the Sporophyte
31.1K
Seed structures are composed of a protective seed coat surrounding a plant embryo, and a food store for the developing embryo. The embryo contains the precursor tissues for leaves, stem, and roots. The endosperm and cotyledons—seed leaves—act as the food reserves for the growing embryo.
31.1K
Introduction to Seed Plants
68.1K
Most plants are seed plants—characterized by seeds, pollen, and reduced gametophytes. Seed plants include gymnosperms and angiosperms.
68.1K
Growth of Cartilage and Bone Tissue
4.2K
Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
4.2K
Conjugated Proteins
28.7K
Simple proteins and protein complexes contain only amino acids. In contrast, many other proteins, called conjugated proteins, covalently bond with non-protein moieties.
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
Nucleoproteins are protein complexes that contain nucleic acids, categorized as deoxyribonucleoproteins (DNPs) or ribonucleoproteins (RNPs) respectively. The nucleosome is a typical example of a DNP where nuclear DNA is associated with histone proteins. The major antigen for the Covid-19 virus SARS-CoV is an RNP that is critical...
28.7K
Structural Protein Function
30.0K
Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
Collagen, the most abundant protein in mammals, is found throughout the body. In connective tissue, such as skin, ligaments, and tendons, it provides tensile strength and elasticity. In bones and teeth, it mineralizes to...
30.0K
Protein-protein Interfaces
14.7K
Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a...
14.7K


