了解细菌表面和粘附特性及其对胶体结构皮克林稳定的影响

IF 7.9 2区 化学 Q1 CHEMISTRY, PHYSICAL Current Opinion in Colloid & Interface Science Pub Date : 2023-11-20 DOI:10.1016/j.cocis.2023.101767
Xiaoyi Jiang , Kathryn A. Whitehead , Nils Arneborg , Yong Fang , Jens Risbo
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引用次数: 0

摘要

革兰氏阳性菌可以被认为是粘附在界面上的结构构件,并根据其表面化学和性质参与胶体结构的形成。革兰氏阳性细菌细胞壁的化学成分和空间构象,特别是乳酸菌,决定了它们的表面性质和粘附行为。细菌粘附的一个应用是通过皮克林机制稳定胶体结构。革兰氏阳性菌的天然组成由于存在较厚的肽聚糖层而产生丰富的亲水性表面多糖,这不利于它们在界面上的吸附,然而,这种特性提供了足够的结合位点来允许表面修饰。了解控制细菌粘附的基本物理化学力有助于揭示它们作为皮克林粒子的潜在应用。这项工作的新颖之处在于,本文综述了细菌之间发生的主要非特异性相互作用,细菌对皮克林颗粒的共性和差异,以及一系列简单和先进的胶体结构如何被天然和表面修饰的细菌稳定。
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Understanding bacterial surface and adhesion properties and the implications for Pickering stabilization of colloidal structures

Gram-positive bacteria can be considered as structural building blocks adhering to interfaces and taking part in the formation of colloidal structures depending on their surface chemistry and properties. The chemical composition and spatial conformation of the Gram-positive bacterial cell wall, particularly of the species Lactobacillus, determine their surface properties and adhesion behaviors. One application of bacterial adhesion can be the stabilization of colloidal structures via a Pickering mechanism. The natural composition of Gram-positive bacteria renders abundant hydrophilic surface polysaccharides due to the presence of a thick peptidoglycan layer, making it unfavorable for their adsorption at interfaces, however, this property provides sufficient binding sites to allow surface modification. Understanding the fundamental physicochemical forces governing bacterial adhesion helps to reveal their potential applications as Pickering particles. The novelty of this work is that this review summarizes the major non-specific interactions occurring between bacteria approaching a surface, the commonalities and differences of bacteria to Pickering particles, and how a series of simple and advanced colloidal structures can be stabilized by natural and surface-modified bacteria.

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来源期刊
CiteScore
16.50
自引率
1.10%
发文量
74
审稿时长
11.3 weeks
期刊介绍: Current Opinion in Colloid and Interface Science (COCIS) is an international journal that focuses on the molecular and nanoscopic aspects of colloidal systems and interfaces in various scientific and technological fields. These include materials science, biologically-relevant systems, energy and environmental technologies, and industrial applications. Unlike primary journals, COCIS primarily serves as a guide for researchers, helping them navigate through the vast landscape of recently published literature. It critically analyzes the state of the art, identifies bottlenecks and unsolved issues, and proposes future developments. Moreover, COCIS emphasizes certain areas and papers that are considered particularly interesting and significant by the Editors and Section Editors. Its goal is to provide valuable insights and updates to the research community in these specialized areas.
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