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Adhesion

Adhesion

Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow glass...

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Updated: Jun 18, 2026

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink

Published on: April 21, 2016

工程蛋白质纤维素复合水凝具有优越的机械性能,用于生物粘合.

Juya Jeon¹, Zhenqin Wang¹, Huiyong Li¹

¹Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, Saint Louis, Missouri, USA.

Small (Weinheim an der Bergstrasse, Germany)

|February 26, 2026

概括

此摘要是机器生成的。

研究人员开发了一种新的蛋白质纤维素水凝,用于强大的水下组织粘附. 这种先进的生物粘合材料对组织修复和再生医学应用有很大的前景.

关键词:

粉胺β-类.生物粘合剂生物粘合剂纤维素纳米晶体的纤维素纳米晶体.复合水凝的组合物贝脚蛋白质是贝脚的蛋白质之一.聚多巴胺胺是一种多多巴胺胺.蛋白质材料是一种蛋白质材料.合成生物学合成生物学水下粘合剂水下粘合剂

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Last Updated: Jun 18, 2026

Bioprinting Cellularized Constructs Using a Tissue-specific Hydrogel Bioink

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Published on: April 21, 2016

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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.
纳米技术纳米技术

背景情况:

实现强大的水下粘合剂具有高性和生物相容性用于组织修复是具有挑战性的.
现有的粘合剂往往会损害生物相容性或相反的机械性能.

研究的目的:

设计一种新的蛋白质纤维素复合液凝,增强粘合强度,性和生物相容性,用于组织修复.
在水凝设计中探索蛋白质域和功能化纳米材料的协同效应.

主要方法:

工程混合蛋白 (丝,粉样蛋白,脚蛋白 - SAM) 和多多巴胺功能化的纤维素纳米晶体 (CNC).
制造的复合水凝具有不同的CNC^PDA度.
具有特征的机械性能 (抗拉强度,应变,性,阻尼能) 和对生物组织的粘合强度.
评估复合水凝的生物相容性.

主要成果:

使用10%CNCPDA的水凝显著增加了拉伸强度 (4.9MPa),应变 (770%),性 (17MJ/m3) 和阻尼能 (202kJ/m3).
在猪皮 (0.88 MPa) 和牛骨 (1.1 MPa) 上达到高粘合强度,超过了临床要求.
通过CNC^PDA纳米填充器的预拉伸和对齐来证明可调节的机械增强.
保持出色的生物相容性.

结论:

蛋白质纤维素复合液凝为先进的生物粘合剂提供了一个有前途的平台.
这种材料解决了组织修复的关键未满足需求,特别是骨再生.
蛋白质设计和纳米材料的协同整合创造了下一代生物材料,用于苛刻的应用.