相关实验视频

Updated: Jul 8, 2025

Synthesis of Strong Adhesive Hydrogel, Gelatin O-Nitrosobenzaldehyde

Synthesis of Strong Adhesive Hydrogel, Gelatin O-Nitrosobenzaldehyde

Published on: November 11, 2022

作为医疗器械抗菌涂层的高度粘合性和自我愈合的Zwitterionic水凝

Xiaoqing Liu¹, Xiangbin Sun¹, Peng Huang¹

¹Key Lab Eco-Functional Polymer Materials of MOE, Institute of Polymer, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.

Langmuir : the ACS journal of surfaces and colloids

|December 18, 2023

概括

这项研究开发了用于医疗器械的自愈,抗菌水凝涂层 (PZG). 涂层表现出强大的粘附性和耐用性,解决了传统抗菌涂层的问题.

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
表面工程是什么?表面工程是什么?

背景情况:

医疗器械上的细菌感染导致了大量的医疗保健成本和设备故障.
现有的抗菌涂层缺乏耐用性和自我愈合特性,限制了长期的疗效.
开发强大的,自我愈合的抗菌涂层对于改善医疗器械寿命和患者安全至关重要.

研究的目的:

合成一种具有增强粘附性和自我愈合能力的多功能多晶基抗菌水凝涂层 (PZG).
研究新型PZG涂层的结构,机械和抗菌性能.
评估PZG涂料在医疗设备中的应用潜力.

主要方法:

紫外线光启动聚合被用于合成聚乙烯基凝涂层 (PZG).
福里埃变换红外光谱学,SEM,EDX和XPS被用于结构特征.
评估了机械性能 (柔性,强度),粘附性,自我愈合性,抗菌活性和生物相容性.

主要成果:

合成的PZG由于内部相互作用而表现出高可塑性 (>1200%应变) 和强度 (>189 kPa).
通过非共价相互作用,PZG表现出对各种基质的强粘附,粘附强度可控制.
观察到出色的自我愈合特性,归因于聚合物网络内的可逆物理相互作用.
该PZG涂层显示出显著的抗菌活性和良好的生物相容性.

结论:

开发的聚菌凝涂层 (PZG) 为医疗器械的耐用,自我愈合的抗菌表面提供了一个有前途的解决方案.
兹维特里昂和四级酸盐的协同作用有助于涂层的抗菌效果和生物相容性.
在生物医学领域,PZG涂料具有广泛的应用前景,可提高医疗设备的性能和安全性.

更多相关视频

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

High-throughput Identification of Bacteria Repellent Polymers for Medical Devices

Published on: November 5, 2016

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Synthesis of Hydrogels with Antifouling Properties As Membranes for Water Purification

Published on: April 7, 2017

相关概念视频

Bacterial Signaling

Bacterial Signaling

Bacterial signaling can occur within bacteria (intracellular) or between bacteria (intercellular). At times, a group of bacteria behaves like a community. To achieve this, they engage in quorum sensing, the perception of higher cell density that causes changes in gene expression. Quorum sensing involves both extracellular and intracellular signaling. The signaling cascade starts with a molecule called an autoinducer (AI). Individual bacteria produce AIs that move out of the bacterial cell...

Surface Membrane Barriers

Surface Membrane Barriers

The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...