Current Opinion in Colloid & Interface Science最新文献_第9页

Liquid crystalline behavior of concentrated aqueous solutions of biosurfactants 生物表面活性剂浓水溶液的液晶行为

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-12-02 DOI: 10.1016/j.cocis.2023.101777

Patrick Davidson

引用次数: 0

Unveiling the nanoscale world: Exploring surface tension measurements with atomic force nanoindenters 揭开纳米尺度的世界:用原子力纳米压头探索表面张力测量

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-11-25 DOI: 10.1016/j.cocis.2023.101769

Ramsia Geisler , Mohammad A. Hormozi , Regine von Klitzing

引用次数: 0

Understanding bacterial surface and adhesion properties and the implications for Pickering stabilization of colloidal structures 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 8.9 2区化学

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

{"title":"Understanding bacterial surface and adhesion properties and the implications for Pickering stabilization of colloidal structures","authors":"Xiaoyi Jiang , Kathryn A. Whitehead , Nils Arneborg , Yong Fang , Jens Risbo","doi":"10.1016/j.cocis.2023.101767","DOIUrl":"10.1016/j.cocis.2023.101767","url":null,"abstract":"<div><p><span>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 </span><em>Lactobacillus</em><span><span><span>, 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 </span>polysaccharides due to the presence of a thick </span>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.</span></p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"69 ","pages":"Article 101767"},"PeriodicalIF":8.9,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138536643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The underlying order: Isomerism as a blueprint to control the behavior of sugar-based (bio)surfactants 其基本原理是:同分异构体是控制糖基(生物)表面活性剂行为的蓝图

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-11-19 DOI: 10.1016/j.cocis.2023.101768

Adrian Sanchez-Fernandez , Jia-Fei Poon

{"title":"The underlying order: Isomerism as a blueprint to control the behavior of sugar-based (bio)surfactants","authors":"Adrian Sanchez-Fernandez , Jia-Fei Poon","doi":"10.1016/j.cocis.2023.101768","DOIUrl":"10.1016/j.cocis.2023.101768","url":null,"abstract":"<div><p>Surfactants are ubiquitous in formulated products and technologies. As one of the most important commodity chemicals, their remarkable consumption leads to the necessity of finding sustainable alternatives. Although the use of renewable sources limits the available chemical space for a “Green” production, the great variety of naturally occurring precursors, i.e., fatty acids and sugars, opens a myriad of possibilities to create biosurfactants capable of replacing the fatigued fossil-derived amphiphiles. Here, we visit the concept of isomer-directed assembly applied to sugar-based surfactants, wherein amphiphile assembly and function are fine-tuned through changes in the stereochemical and regiochemical configuration of the molecule. As such, we show how isomerism defines directional interactions and solvation, ultimately dictating the assembly of surfactants. However, a general framework to understand the structure-function relationship for these is still missing, which is key to realizing this divergent set of tools for the design of new surfactants.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"69 ","pages":"Article 101768"},"PeriodicalIF":8.9,"publicationDate":"2023-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000936/pdfft?md5=30a9b10052fed3f0e41db631e41ead25&pid=1-s2.0-S1359029423000936-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138536623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The adsorption and self-assembly of biosurfactants and biosurfactant / surfactant mixtures using neutron scattering techniques 中子散射技术研究生物表面活性剂和生物表面活性剂/表面活性剂混合物的吸附和自组装

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-11-04 DOI: 10.1016/j.cocis.2023.101766

Jeffrey Penfold , Robert K. Thomas

引用次数: 0

Multi-component phase behavior of biosurfactants 生物表面活性剂的多组分相行为

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-31 DOI: 10.1016/j.cocis.2023.101765

Janine Birnbach , Peter Schmiedel , Matthias Karg

引用次数: 0

Proteins and biosurfactants: Structures, functions, and recent applications 蛋白质和生物表面活性剂:结构、功能和最新应用

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-30 DOI: 10.1016/j.cocis.2023.101746

Marcos López Hernández , Jan Skov Pedersen , Daniel E. Otzen

{"title":"Proteins and biosurfactants: Structures, functions, and recent applications","authors":"Marcos López Hernández , Jan Skov Pedersen , Daniel E. Otzen","doi":"10.1016/j.cocis.2023.101746","DOIUrl":"https://doi.org/10.1016/j.cocis.2023.101746","url":null,"abstract":"<div><p>Synergies between surfactants and proteins are found everywhere in everyday life. Beneficial interactions are exploited in fields such as food processing, pharmaceutical production, and laundry, leading to better products and lower energy consumption. Nevertheless, there is still room for improvement regarding sustainability. Here, biosurfactants (BS) are an attractive alternative to petrochemical surfactants. Insights into BS-protein interactions can help replacing traditional surfactants with BS and uncover new opportunities. Here, we review recent work on proteins' interactions with BS, with focus on the self-assembly of protein:BS complexes and BS’ effects on enzymatic activity. Generally, interactions are milder than those with traditional ionic surfactants, leading to modest effects on protein structure and self-assembly, while enzymatic inhibition is generally observed above BS' critical micelle concentration. Mild interactions between proteins and BS show promise in forming functional complexes with proteins, however, further studies are required to understand and minimize the detrimental effects that do occur.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"68 ","pages":"Article 101746"},"PeriodicalIF":8.9,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000717/pdfft?md5=2e02444c749f52c0c1e08337cc23b1a7&pid=1-s2.0-S1359029423000717-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92039987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Physics-based molecular modeling of biosurfactants 基于物理的生物表面活性剂分子建模

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-30 DOI: 10.1016/j.cocis.2023.101760

Benjamin J. Coscia , Andrea R. Browning , Jeffrey M. Sanders , Mathew D. Halls

引用次数: 0

Recent advances on the interaction of glycolipid and lipopeptide biosurfactants with model and biological membranes 糖脂和脂肽生物表面活性剂与模型膜和生物膜相互作用的研究进展

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-30 DOI: 10.1016/j.cocis.2023.101748

Francisco J. Aranda, José A. Teruel, Antonio Ortiz

{"title":"Recent advances on the interaction of glycolipid and lipopeptide biosurfactants with model and biological membranes","authors":"Francisco J. Aranda, José A. Teruel, Antonio Ortiz","doi":"10.1016/j.cocis.2023.101748","DOIUrl":"https://doi.org/10.1016/j.cocis.2023.101748","url":null,"abstract":"<div><p>Microbial biosurfactants have gained interest in the last decades because of their unique characteristics. The variety of chemical structures within these compounds makes them very versatile, with glycolipids and lipopeptides outstanding among the rest. The amphiphilic nature of these compounds makes them to partition into and strongly interact with phospholipid membranes, modifying their structure and function. Thus, much research has been done on the characterization of the interaction of glycolipid and lipopeptide biosurfactants with model and biological membranes. Whereas the studies involving phospholipid model membranes were mostly carried out earlier, most of the recent research has focused on biological membranes, including mammalian and microorganisms' systems. This review presents the recent developments achieved on the interaction of the main glycolipid and lipopeptide biosurfactants with model and biological membranes.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"68 ","pages":"Article 101748"},"PeriodicalIF":8.9,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000730/pdfft?md5=8674b1a1d044c8a3ae317f71003ec623&pid=1-s2.0-S1359029423000730-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92039988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emerging application of biosurfactants in metal extraction 生物表面活性剂在金属萃取中的新应用

IF 8.9 2区化学

Current Opinion in Colloid & Interface Science Pub Date : 2023-10-27 DOI: 10.1016/j.cocis.2023.101763

Irina Chernyshova, Vladislav Slabov, Hanumantha Rao Kota

{"title":"Emerging application of biosurfactants in metal extraction","authors":"Irina Chernyshova, Vladislav Slabov, Hanumantha Rao Kota","doi":"10.1016/j.cocis.2023.101763","DOIUrl":"https://doi.org/10.1016/j.cocis.2023.101763","url":null,"abstract":"<div><p>Due to their environmental benefits and rich interfacial and colloidal properties, biosurfactants show promise as a platform for next-generation reagents in metal extraction using froth and foam flotation. While the development of biosurfactants as flotation bioreagents is still in its infancy, it has witnessed important progress in the past five years. Recent studies have not only demonstrated the ability of biosurfactants to compete with conventional collectors but have also provided valuable insights into the experimental parameters affecting these two separation processes. Despite this progress, the interactions of biosurfactants with mineral particles, metal ions, and air bubbles under flotation conditions remain far from being fully understood. There is growing evidence suggesting that these interactions are more complex than observed for conventional petroleum-based collectors. We summarize the recent progress and outline the main remaining knowledge gaps, aiming to generate more interest in the intriguingly complex multifunctional properties of biosurfactants as collectors.</p></div>","PeriodicalId":293,"journal":{"name":"Current Opinion in Colloid & Interface Science","volume":"68 ","pages":"Article 101763"},"PeriodicalIF":8.9,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1359029423000882/pdfft?md5=3725d0111398092145d74ab53d071100&pid=1-s2.0-S1359029423000882-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91983548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0