相关实验视频

Updated: Jul 28, 2025

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Bacterial Cellulose Spheres that Encapsulate Solid Materials

Published on: February 26, 2021

通过in-situ策略进行化细菌纤维素衍生物的生物合成

Jianbin Lin¹, Bianjing Sun¹, Heng Zhang¹

¹Institute of Chemicobiology and Functional Materials, School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, 200 Xiao Ling Wei, Nanjing 210094, China.

International journal of biological macromolecules

|May 28, 2023

概括

这项研究引入了N-乙化细菌纤维素 (ABC),一种改性生物聚合物,具有更广泛应用的增强性质. 这种环保方法产生了一种具有多种功能潜力的生物相容材料.

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
生物技术是生物技术.

背景情况:

细菌纤维素 (BC) 是一种天然的生物聚合物,具有独特的特性,但由于其简单的表面化学结构,应用有限.
BC的功能化对于扩大其在各个领域的实用性至关重要.

研究的目的:

开发一种用于功能化细菌纤维素的新方法.
合成N-乙化细菌纤维素 (ABC) 具有更好的特性和生物相容性.
探索ABC的进一步功能化,以增强多样性.

主要方法:

使用K. nataicola RZS01.01直接合成N-乙化细菌纤维素 (ABC).
使用FT-IR,NMR和XPS进行ABC的表征,以确认化学修饰.
通过SEM和XRD分析结构变化 (晶度,纤维宽度).
通过细胞活力测定和血液溶解试验评估生物相容性.
使用化细菌进行ABC的二次功能化.

主要成果:

通过光谱方法证实了细菌纤维素在现场成功的乙化.
与原始的BC.相比,ABC表现出减少的结晶性和增加的纤维宽度.
合成的ABC表现出良好的生物相容性,具有高细胞活力和低血解比率.
通过化细菌进行进一步的功能化增加了修改后的BC的多样性.

结论:

建立了一种温和,环保,现场生产功能化细菌纤维素衍生物的方法.
N-乙化细菌纤维素 (ABC) 提供了更好的特性和生物相容性,扩大了其应用潜力.
这种代谢途径为创建基于BC的先进生物材料提供了一种可持续的方法.

关键词:

氨基酸胺基修饰细菌纤维素的细菌纤维素.在现场生物合成.

更多相关视频

Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation

Towards Biomimicking Wood: Fabricated Free-standing Films of Nanocellulose, Lignin, and a Synthetic Polycation

Published on: June 17, 2014

Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

Manufacturing Of Robust Natural Fiber Preforms Utilizing Bacterial Cellulose as Binder

Published on: May 22, 2014

相关概念视频

Biosynthesis in Bacteria

Biosynthesis in Bacteria

Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...

Role of Microtubules in Cell Wall Deposition

Role of Microtubules in Cell Wall Deposition

Microtubules are small hollow tubes in eukaryotic cells. The cell wall microtubules are polymerized dimers of two globular proteins, α-tubulin and β-tubulin, two globular proteins. With a diameter of about 25 nm, microtubules are the widest components of the cytoskeleton. They help the cell resist compression and provide a track along which vesicles move through the cell or pull replicated chromosomes to opposite ends of a dividing cell. Microtubules go through quick cycles of...

Biosynthesis of Polysaccharides

Biosynthesis of Polysaccharides

Polysaccharides such as glycogen and starch are synthesized from nucleoside diphosphate sugars, primarily uridine diphosphate glucose (UDPG) and adenosine diphosphate glucose (ADPG). These activated glucose donors act as key intermediates in carbohydrate metabolism and biosynthesis. UDPG primarily involves glycogen synthesis in animals and many bacteria, while ADPG plays a fundamental role in starch synthesis in plants and certain bacteria.UDPG is formed when glucose-1-phosphate reacts with...

Cellulose and Pectic Polysaccharides

Cellulose and Pectic Polysaccharides

Every plant cell has a cell wall that protects the cell, provides structural support, and gives the cell shape. Cellulose, the main structural component of the plant cell wall, makes up over 30% of plant matter. It is the most abundant organic compound on earth. Cellulose is an unbranched polysaccharide composed of linear chains of glucose molecules linked by β (1→4) glycosidic bonds.
As a cell matures, its cell wall specializes according to its type. For example, the...

Peptidoglycan Synthesis

Peptidoglycan 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...

Carbon-dioxide Fixation

Carbon-dioxide Fixation

Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...