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1. Composite emulsifying behavior of egg white protein and rhamnolipid: Properties of the constructed high internal phase emulsions

Author:
Yang, Yinyue; Li, Junhua; Su, Yujie; Gu, Luping; Yang, Yanjun; Chang, Cuihua
Source:
Food hydrocolloids 2022 v.123 pp. 106913
ISSN:
0268-005X
Subject:
surfactants,   etc   ; egg albumen; emulsifiers; emulsions; hydrocolloids; microstructure; nuclear magnetic resonance spectroscopy; particle size; rhamnolipids; rheology; stabilizers; zeta potential;     Show all 12 Subjects
Abstract:
... This study investigated the interaction between egg white protein particles (EWPP) and rhamnolipid (Rha) as co-emulsifiers in high internal phase emulsions (HIPEs). To reveal the effect between EWPP and Rha on the properties of HIPEs, the physicochemical properties (particle size, zeta-potential and microstructure) and emulsifying capacity were investigated. The results showed that, with the incre ...
DOI:
10.1016/j.foodhyd.2021.106913

2. The evolution of numerical methods for predicting the distribution of surfactant in the bubble-scale dynamics of foams

Author:
Cox, Simon; Davies, Tudur
Source:
Current opinion in colloid & interface science 2021 v.53 pp. 101440
ISSN:
1359-0294
Subject:
surfactants,   etc   ; foams; liquids; rheology;     Show all 4 Subjects
Abstract:
... Many numerical methods now exist to simulate the structure and dynamics of surface-tension-dominated aqueous foams at the level of the individual films and the liquid structures where they meet. We review these methods, focusing in particular on bubble-scale simulations of foam rheology. We highlight methods that allow the distribution of surfactant during flow to be taken into account. ...
DOI:
10.1016/j.cocis.2021.101440

3. Assessing the Impact of Solvent Selection on Vibrational Sum-Frequency Scattering Spectroscopy Experiments

Author:
Carpenter, Andrew P.; Christoffersen, Evan L.; Mapile, Ashley N.; Richmond, Geraldine L.
Source:
TheJournal of physical chemistry 2021 v.125 no.12 pp. 3216-3229
ISSN:
1520-5207
Subject:
surfactants,   etc   ; absorption; solvents; spectroscopy;     Show all 4 Subjects
Abstract:
... The development of vibrational sum-frequency scattering (S-VSF) spectroscopy has opened the door to directly probing nanoparticle surfaces with an interfacial and chemical specificity that was previously reserved for planar interfacial systems. Despite its potential, challenges remain in the application of S-VSF spectroscopy beyond simplified chemical systems. One such challenge includes infrared ...
DOI:
10.1021/acs.jpcb.1c00188

4. GALA peptide improves the potency of nanobody–drug conjugates by lipid-induced helix formation

Author:
Chen, Ya Jie; Deng, Qi Wen; Wang, Li; Guo, Xiao Chun; Yang, Jian Yuan; Li, Ting; Xu, Zhengshuang; Lee, Hon Cheung; Zhao, Yong Juan
Source:
Chemical communications 2021 v.57 no.12 pp. 1434-1437
ISSN:
1364-548X
Subject:
surfactants,   etc   ; cytotoxicity; endocytosis; peptides;     Show all 4 Subjects
Abstract:
... A novel nanobody–drug conjugate (NDC) was constructed by incorporating an amphipathic peptide, GALA, which improved the cytotoxicity by one to two orders of magnitude. Mechanistic studies demonstrate that tethering to lipids induces GALA to form a helix, which dramatically enhances endocytosis. Our work provides a general strategy not only for improving the anti-cancer efficacy of protein-drug con ...
DOI:
10.1039/d0cc07706b

5. Multiple modulations of supramolecular assemblies from a natural triterpenoid-tailored bipyridinium amphiphile

Author:
Gao, Yuxia; Zhao, Kefei; Yu, Xia; Li, Zilu; Wu, Tianyue; Zhang, Chenhui; Du, Fengpei; Hu, Jun
Source:
Journal of colloid and interface science 2021 v.584 pp. 92-102
ISSN:
0021-9797
Subject:
surfactants,   etc   ; methanol; nanofibers;     Show all 3 Subjects
Abstract:
... As the applications of supramolecular assemblies are ultimately inscribed in their nanostructures, strategies that can precisely fabricate and regulate supramolecular architectures from small molecules are of great importance. Herein, in this research multiple modulations of supramolecular assembled structures of a natural triterpenoid-tailored bipyridinium amphiphile, 1-[2-(methyl glycyrrhetate)- ...
DOI:
10.1016/j.jcis.2020.09.125

6. Effects of Hydration on the Adsorption of Benzohydroxamic Acid on the Lead-Ion-Activated Cassiterite Surface: A DFT Study

Author:
He, Jianyong; Zhang, Hongliang; Yue, Tong; Sun, Wei; Hu, Yuehua; Zhang, Chenyang
Source:
Langmuir 2021 v.37 no.6 pp. 2205-2212
ISSN:
1520-5827
Subject:
surfactants,   etc   ; adsorption; energy; thermodynamics;     Show all 4 Subjects
Abstract:
... The strategy of enhancing the surface activity by preadsorption of metal ions (surface activation) is an effective way to promote the adsorption of surfactant on surfaces, which is very important in surface process engineering. However, the adsorption mechanism of surfactant (collector) on the surface preadsorbed by metal ions in the explicit solution phase is still poorly understood. Herein, the ...
DOI:
10.1021/acs.langmuir.0c03575

7. Absorption of surfactant-laden droplets into porous media: A numerical study

Author:
van Gaalen, R.T.; Diddens, C.; Siregar, D.P.; Wijshoff, H.M.A.; Kuerten, J.G.M.
Source:
Journal of colloid and interface science 2021 v.597 pp. 149-159
ISSN:
0021-9797
Subject:
surfactants,   etc   ; absorption; adsorption; capillarity; droplets;     Show all 5 Subjects
Abstract:
... Droplets can absorb into permeable substrates due to capillarity. It is hypothesized that the contact line dynamics influence this process and that an unpinned contact line results in slower absorption than a pinned contact line, since the contact area between the droplet and the substrate will decrease over time for the former. Furthermore, it is expected that surfactants can be used to accelerat ...
DOI:
10.1016/j.jcis.2021.03.119

8. Multicontinuous structures with intertwined networks of channels with different topology

Author:
Góźdź, Wojciech T.
Source:
Colloids and surfaces 2021 v.623 pp. 126715
ISSN:
0927-7757
Subject:
surfactants,   etc   ; composite polymers; lipids; topology;     Show all 4 Subjects
Abstract:
... We have studied the properties of multicontinuous structures with cubic symmetry. They are formed in many different systems such as diblock copolymers, lipid and surfactant mixtures. We have obtained new multicontinuous structures with different topology of two intertwined networks of channels within the framework of the Landau-Brazovskii functional with one scalar order parameter. We have analyze ...
DOI:
10.1016/j.colsurfa.2021.126715

9. Surface-Modified Magnetic Nanoscale Materials: Preparation and Study of Their Structure, Composition, and Properties

Author:
Pryazhnikov, D. V.; Kubrakova, I. V.
Source:
Journal of analytical chemistry 2021 v.76 no.6 pp. 685-706
ISSN:
1061-9348
Subject:
surfactants,   etc   ; adsorption; analytical chemistry; magnetism;     Show all 4 Subjects
Abstract:
... Modified magnetic nanoparticles (MNPs) of the “core–shell” type have a potentially wide range of applications in various fields of scientific activity, in particular, in analytical chemistry. These applications are based on the sorption properties of magnetic nanoparticles, which are determined by the surface structure of the nanoparticle. Thus, a comprehensive study of their composition and struc ...
DOI:
10.1134/S1061934821060095

10. Au(i)-, Ag(i)-, and Pd(ii)-coordination-driven diverse self-assembly of an N-heterocyclic carbene-based amphiphile

Author:
Taira, Toshiaki; Yanagimoto, Takaya; Sakai, Kenichi; Sakai, Hideki; Imura, Tomohiro
Source:
RSC advances 2021 v.11 no.29 pp. 17865-17870
ISSN:
2046-2069
Subject:
surfactants,   etc   ; carbenes; heterocyclic nitrogen compounds;     Show all 3 Subjects
Abstract:
... Au(i)-, Ag(i)-, and Pd(ii)-coordination-driven diverse self-assembly of an N-heterocyclic carbene (NHC)-based amphiphile was demonstrated herein. The transition metals had significant effects over the whole system, setting the self-assembly direction of the NHC-based amphiphile. More specifically, Au(i)- and Ag(i)-coordination to the NHC-based amphiphile promoted the formation of spherical and hex ...
DOI:
10.1039/d1ra02719k

11. Analyzing the Role of Surfactants in the Colloidal Stability of Nanoparticles in Oil through Coarse-Grained Molecular Dynamics Simulations

Author:
Griffiths, Mark Z.; Shinoda, Wataru
Source:
TheJournal of physical chemistry 2021 v.125 no.23 pp. 6315-6321
ISSN:
1520-5207
Subject:
surfactants,   etc   ; deformation; molecular dynamics; oils;     Show all 4 Subjects
Abstract:
... The mechanism by which surfactants stabilize nanoparticles in oil is not yet fully understood. There are numerous factors at play, and the conditions under which a nanoparticle is stabilized in oil cannot always be predicted with certainty. In this study, the SPICA coarse-grained force field was used to observe the molecular-level details of nanoparticle aggregation through simulation. Using SPICA ...
DOI:
10.1021/acs.jpcb.1c01148

12. Photoresponsive transformation from spherical to nanotubular assemblies: anticancer drug delivery using macrocyclic cationic gemini amphiphiles

Author:
Dey, Subhasis; Chatterjee, Soumya; Patel, Anjali; Pradhan, Nirmalya; Srivastava, Diship; Patra, Niladri; Bhattacharyya, Arindam; Manna, Debasis
Source:
Chemical communications 2021 v.57 no.38 pp. 4646-4649
ISSN:
1364-548X
Subject:
surfactants,   etc   ; cytotoxicity; doxorubicin; encapsulation; hydrophobicity;     Show all 5 Subjects
Abstract:
... We developed NIR-light-responsive macrocyclic cationic gemini amphiphiles, one of which displayed various favorable properties of lipids. The NIR-light-mediated cleavage of the strained dioxacycloundecine ring led to the conversion of the spherical to a nanotubular self-assembly in the aqueous medium. This photo-mediated transformation from the spherical to nanotubular self-assembly resulted in th ...
DOI:
10.1039/d1cc01468d

13. Dendritic Micelles with Controlled Branching and Sensor Applications

Author:
Zhang, Yifan; Pearce, Samuel; Eloi, Jean-Charles; Harniman, Robert L.; Tian, Jia; Cordoba, Cristina; Kang, Yuetong; Fukui, Tomoya; Qiu, Huibin; Blackburn, Arthur; Richardson, Robert M.; Manners, Ian
Source:
Journal of the American Chemical Society 2021 v.143 no.15 pp. 5805-5814
ISSN:
1520-5126
Subject:
surfactants,   etc   ; composite polymers; fluorescence; micelles;     Show all 4 Subjects
Abstract:
... Although micelles derived from the solution self-assembly of amphiphilic molecules and polymers have been prepared with a wide variety of shapes, examples with well-defined branched structures have remained elusive. We describe a divergent, directed self-assembly approach to low dispersity dendritic micelles with a high degree of structural perfection and tailorable branch numbers and generations. ...
DOI:
10.1021/jacs.1c00770

14. Surfactant Driven Marangoni Spreading in the Presence of Predeposited Insoluble Surfactant Monolayers

Author:
Sauleda, Madeline L.; Chu, Henry C. W.; Tilton, Robert D.; Garoff, Stephen
Source:
Langmuir 2021 v.37 no.11 pp. 3309-3320
ISSN:
1520-5827
Subject:
surfactants,   etc   ; oleic acid; surface tension;     Show all 3 Subjects
Abstract:
... When an insoluble surfactant is deposited on the surface of a thin fluid film, stresses induced by surface tension gradients drive Marangoni spreading across the subphase surface. The presence of a predeposited layer of an insoluble surfactant alters that spreading. In this study, the fluid film was aqueous, the predeposited insoluble surfactant was dipalmitoylphosphatidylcholine (DPPC), and the d ...
DOI:
10.1021/acs.langmuir.0c03348

15. Redox-Responsive, Reconfigurable All-Liquid Constructs

Author:
Sun, Huilou; Li, Mingwei; Li, Lianshun; Liu, Tan; Luo, Yuzheng; Russell, Thomas P.; Shi, Shaowei
Source:
Journal of the American Chemical Society 2021 v.143 no.10 pp. 3719-3722
ISSN:
1520-5126
Subject:
surfactants,   etc   ; liquids; oil-water interface;     Show all 3 Subjects
Abstract:
... Using host–guest chemistries in a biphasic system, a novel supramolecular nanoparticle surfactant (s-NPS) with redox-responsiveness is presented to structure liquids. The in situ assembly/jamming and disassembly/unjamming of s-NPSs at the oil–water interface are reversibly controlled by a switchable redox process, imparting a nanoscale redox-responsiveness, affecting the assemblies on all length s ...
DOI:
10.1021/jacs.1c00429

16. Interface engineering in low-dimensional bismuth-based materials for photoreduction reactions

Author:
Xiong, Jun; Di, Jun; Li, Huaming
Source:
Journal of materials chemistry A 2021 v.9 no.5 pp. 2662-2677
ISSN:
2050-7496
Subject:
surfactants,   etc   ; geometry; liquids; photocatalysis; photoreduction;     Show all 5 Subjects
Abstract:
... Due to their fascinating strengths in boosting light-absorption, charge transfer dynamics, and interface catalysis reactions, low-dimensional materials have been regarded as effective configurations for achieving excellent photocatalytic performance. Owing to these features, low-dimensional bismuth-based materials have acquired great progress in recent years for photoreduction reactions. In this r ...
DOI:
10.1039/d0ta10549j

17. Influence of surfactants on a pre-adsorbed cationic layer: Removal and modification

Author:
Allen, Finian J.; Truscott, Chris L.; Welbourn, Rebecca J.L.; Clarke, Stuart M.
Source:
Journal of colloid and interface science 2021 v.588 pp. 427-435
ISSN:
0021-9797
Subject:
anionic surfactants; cationic surfactants; nonionic surfactants,   etc   ; adsorption; mica; micelles; reflectometry; sodium dodecyl sulfate;     Show all 8 Subjects
Abstract:
... Removal of organic species from solid surfaces is a crucial process. The use of oppositely charged surfactants provides a potential method for enhanced removal. Neutron reflectometry has been used to investigate the complex behaviour of a pre-adsorbed and tenacious layer of the cationic surfactant didodecyldimethylammonium bromide (DDAB) on a mica surface, during exposure to different organic spec ...
DOI:
10.1016/j.jcis.2020.12.047

18. Impact of temperature and surfactant addition on milk foams

Author:
Dandigunta, Babuji; Karthick, Arun; Chattopadhyay, Pradipta; Dhoble, Abhishek S.
Source:
Journal of food engineering 2021 v.299 pp. 110509
ISSN:
0260-8774
Subject:
anionic surfactants; cationic surfactants; nonionic surfactants,   etc   ; cetyltrimethylammonium bromide; cream; dairy industry; foams; milk; milk composition; polysorbates; sodium dodecyl sulfate; temperature;     Show all 12 Subjects
Abstract:
... Milk is a complex colloidal solution. Knowledge of milk composition assay is essential for better applications in the dairy industry apart from processing and storage. Several techniques are reported in literature, but their applications are limited due to chemical entailment, invasive nature, and complicated procedures. The present work investigates the possibility of using milk foam properties a ...
DOI:
10.1016/j.jfoodeng.2021.110509

19. Metal ion-triggered Pickering emulsions and foams for efficient metal ion extraction

Author:
Huang, Zhaohui; Sun, Xiuping; Liu, Yihan; Cui, Jiwei; Song, Aixin; Hao, Jingcheng
Source:
Journal of colloid and interface science 2021 v.602 pp. 187-196
ISSN:
0021-9797
Subject:
anionic surfactants,   etc   ; air; industrial wastewater; oils; phosphates;     Show all 5 Subjects
Abstract:
... Emulsions and foams were constructed by using surfactant particles as stabilizers. Bis(2-ethylhexyl) phosphate, abbreviated as HDEHP, was used as both an oil in neutral form and an anionic surfactant in deprotonated form, DEHP⁻. In the system of HDEHP/H₂O, upon adding NaOH, a portion of HDEHP was deprotonated to form DEHP⁻ as stabilizers of O/W emulsions. After introducing some certain metal ions, ...
DOI:
10.1016/j.jcis.2021.05.182

20. Novel chemical flood combination of CSA particles and strong emulsifying surfactant in heterogeneous reservoirs

Author:
Li, Xiaoxiao; Yue, Xiang'an; Yue, Tianqi; Yan, Rongjie; Olaleye, Oluwaseun E.; Shao, Minglu
Source:
Colloids and surfaces 2021 v.625 pp. 126838
ISSN:
0927-7757
Subject:
surfactants,   etc   ; models; oil fields; oils; synergism;     Show all 5 Subjects
Abstract:
... In-depth profile control agents and surfactant have been successfully applied to control excess water production and extend the lifetime of oilfields. In this study, a novel chemical flood combination composed of controllable self-aggregating particles (CSA), and a surfactant with strong emulsifying capability was designed for heterogeneous reservoirs. A series of physical experiments were perform ...
DOI:
10.1016/j.colsurfa.2021.126838