增强性的甲基原双网凝用于生物材料
Atsushi Tsuyukubo1, Riku Kubota1, Yuzo Sato1
1Koken Research Institute, Koken Co., Ltd., 1-18-36 Takarada, Tsuruoka 997-0011, Yamagata, Japan.
Polymers
|January 26, 2024
概括
这项研究开发了一种强硬的,生物相容的复合水凝,使用亚特洛原和聚,N,N-二甲基烯胺. 双网凝显示了增强的机械性能和纤维细胞粘附,为软组织再生提供了潜力.
科学领域:
- 生物材料科学 生物材料科学
- 聚合物化学 聚合物化学
- 组织工程是组织工程.
背景情况:
- 亚特洛原是一种有前途的生物材料,因为它缺乏免疫性.
- 开发强大且生物相容的水凝对于生物医学应用至关重要.
- 双网 (DN) 凝与单网凝相比,具有增强的机械性能.
研究的目的:
- 根据DN凝原理,使用乙烯和聚-N,N-二甲基甲胺) 创建一个复合水凝.
- 评估开发的水凝的机械性能和生物相容性.
- 评估水凝作为软组织替代人工材料的潜力.
主要方法:
- 制造一个双网水凝,包括甲基和聚,N,N-二甲基烯胺).
- 亚特洛原成分与谷氨基 (GA) 的交叉链接.
- 机械试验 (拉力试验) 用于确定断裂应力和性.
- 使用纤维细胞培养物细胞进行细胞培养研究以评估生物相容性.
- 通过GA交联形成的希夫基的排毒降解氨化.
主要成果:
- 乙烯基凝的抗拉性独立于甲 (GA) 度.
- 开发的双网 (DN) 凝表现出明显更高的断裂应力和性,而不是atelocollagen凝.
- 纤维细胞在经过排毒的DN水凝上表现出粘附和扩散.
- 水凝实现了MPa以下的断裂应力,这表明它适用于软组织应用.
结论:
- 复合甲基/聚-N,N-二甲基甲胺) DN水凝具有卓越的机械性能和生物相容性.
- 通过还原性氨基化实现甲酸交叉连接剂的排毒,提高了安全性.
- 开发的水凝材料显示出作为软组织的人工替代品的巨大潜力.
相关概念视频
01:09Recombinant DNA
Overview
01:20The Central Dogma
The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
01:18Amino Acid Catabolism
Microorganisms rely on proteins as an essential carbon and energy source, particularly in environments with limited polysaccharides or lipids. However, proteins are too large to cross the plasma membrane unaided, necessitating enzymatic degradation. Microbes secrete extracellular proteases and peptidases that hydrolyze proteins into peptides, which can then be transported across the membrane. Once inside the cell, intracellular proteases degrade these peptides into free amino acids, which...
01:28Peptidoglycan Synthesis
Structure of PeptidoglycanPeptidoglycan is a vital structural component of the bacterial cell wall, providing mechanical strength and shape to the cell. It consists of repeating units of two sugars—N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM)—linked by β-1,4 glycosidic bonds. These sugar chains are cross-linked by short peptide chains, forming a mesh-like polymer that surrounds the bacterial plasma membrane.Cytoplasmic Phase – Precursor SynthesisPeptidoglycan biosynthesis begins in...
01:22Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
01:27Bioplastics
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...