scholarly journals Atomistic simulations of pH-dependent self-assembly of micelle and bilayer from fatty acids

2012 ◽  
Vol 137 (19) ◽  
pp. 194902 ◽  
Author(s):  
Brian H. Morrow ◽  
Peter H. Koenig ◽  
Jana K. Shen
Keyword(s):  
Fatty Acids ◽  
Self Assembly ◽  
Atomistic Simulations ◽  
Ph Dependent

scholarly journals Alpha helical surfactant-like peptides self-assemble into pH-dependent nanostructures

Soft Matter ◽  
2021 ◽  
Vol 17 (11) ◽  
pp. 3096-3104
Author(s):  
Valeria Castelletto ◽  
Jani Seitsonen ◽  
Janne Ruokolainen ◽  
Ian W. Hamley
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Small Angle ◽  
Self Assembly ◽  
X Ray ◽  
Cryogenic Transmission Electron Microscopy ◽  
X Ray Scattering ◽  
Transmission Electron ◽  
Ph Dependent ◽  
Ray Scattering

A designed surfactant-like peptide is shown, using a combination of cryogenic-transmission electron microscopy and small-angle X-ray scattering, to have remarkable pH-dependent self-assembly properties.

pH-dependent self-assembly of copper(II) complexes with a new imidazole-containing polyamine ligand: Synthesis, structure and magnetic property

Polyhedron ◽  
2008 ◽  
Vol 27 (12) ◽  
pp. 2672-2680 ◽  
Author(s):  
Zhao-Peng Qi ◽  
Zheng-Shuai Bai ◽  
Qing Yuan ◽  
Taka-aki Okamura ◽  
Kai Cai ◽  
...  
Keyword(s):  
Magnetic Property ◽  
Self Assembly ◽  
Ph Dependent ◽  
Ligand Synthesis

scholarly journals Self-assembly of alkyl chains of fatty acids in papermaking systems: A review of related pitch issues, hydrophobic sizing, and pH effects

BioResources ◽  
2020 ◽  
Vol 15 (2) ◽  
pp. 4591-4635
Author(s):  
Martin A. Hubbe ◽  
Douglas S. McLean ◽  
Karen R. Stack ◽  
Xiaomin Lu ◽  
Anders Strand ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Self Assembly ◽  
Review Article ◽  
Ph Effects ◽  
Monolayer Films ◽  
Alkyl Chains ◽  
Ph Values ◽  
Self Association ◽  
Long Chain

This review article considers the role of fatty acids and the mutual association of their long-chain (e.g. C18) alkyl and alkenyl groups in some important aspects of papermaking. In particular, published findings suggest that interactions involving fatty acids present as condensed monolayer films can play a controlling role in pitch deposition problems. Self-association among the tails of fatty acids and their soaps also helps to explain some puzzling aspects of hydrophobic sizing of paper. When fatty acids and their soaps are present as monolayers in papermaking systems, the pH values associated with their dissociation, i.e. their pKa values, tend to be strongly shifted. Mutual association also appears to favor non-equilibrium multilayer structures that are tacky and insoluble, possibly serving as a nucleus for deposition of wood extractives, such, as resins and triglyceride fats, in pulp and paper systems.

pH-Dependent In-Cell Self-Assembly of Peptide Inhibitors Increases the Anti-Prion Activity While Decreasing the Cytotoxicity

2017 ◽  
Vol 18 (3) ◽  
pp. 943-950 ◽  
Author(s):  
Muhammad Waqas ◽  
Woo-jin Jeong ◽  
Young-Joo Lee ◽  
Dae-Hwan Kim ◽  
Chongsuk Ryou ◽  
...  
Keyword(s):  
Self Assembly ◽  
Peptide Inhibitors ◽  
Ph Dependent

Self-assembly of the sodium salts of fatty acids into limpid hydrogels through non-covalent interactions with peptides

RSC Advances ◽  
2015 ◽  
Vol 5 (76) ◽  
pp. 61719-61724 ◽  
Author(s):  
Kai Zhou ◽  
Senpei Yang ◽  
Guanghua Zhao ◽  
Yong Ning ◽  
Chuanshan Xu
Keyword(s):  
Fatty Acids ◽  
Self Assembly ◽  
High Selectivity ◽  
Sodium Salts ◽  
Non Covalent Interactions ◽  
Covalent Interactions

Sodium salts of fatty acids (SFA) self-assemble into a limpid hydrogel in the presence of poly(α,l-lysine) with a high selectivity for the size of SFA and poly(α,l-lysine).

scholarly journals Melanin production by tyrosinase activity on a tyrosine-rich peptide fragment and pH-dependent self-assembly of its lipidated analogue

2019 ◽  
Vol 17 (18) ◽  
pp. 4543-4553 ◽  
Author(s):  
Jessica A. Hutchinson ◽  
Ian W. Hamley ◽  
Charlotte J. C. Edwards-Gayle ◽  
Valeria Castelletto ◽  
Cristian Piras ◽  
...  
Keyword(s):  
Self Assembly ◽  
Tyrosinase Activity ◽  
The Self ◽  
Peptide Fragment ◽  
Melanin Production ◽  
Gut Hormone ◽  
Ph Dependent

The self-assembly of a palmitoylated peptide C16-EELNRYY based on a fragment of the gut hormone peptide PYY3–36 is investigated.

Self-assembly of diphenylalanine peptides on graphene via detailed atomistic simulations

2020 ◽  
Vol 22 (47) ◽  
pp. 27645-27657
Author(s):  
Anastassia N. Rissanou ◽  
Andriani Keliri ◽  
Maria Arnittali ◽  
Vagelis Harmandaris
Keyword(s):  
Aqueous Solution ◽  
Self Assembly ◽  
Atomistic Simulations ◽  
Density Profiles ◽  
Atom Density ◽  
Phenyl Rings

(a) Characteristic snapshot of 150FF peptides in aqueous solution at 300 K. (b) Characteristic snapshot of an interfacial graphene/FF system with 300FF in aqueous solution at 300 K. (c) Atom density profiles of phenyl rings and the backbone as a function of distance from the surface of graphene.

scholarly journals How electrostatic networks modulate specificity and stability of collagen

2018 ◽  
Vol 115 (24) ◽  
pp. 6207-6212 ◽  
Author(s):  
Hongning Zheng ◽  
Cheng Lu ◽  
Jun Lan ◽  
Shilong Fan ◽  
Vikas Nanda ◽  
...  
Keyword(s):  
Extracellular Matrix ◽  
Hydrogen Bonding ◽  
High Resolution ◽  
Predictive Model ◽  
Self Assembly ◽  
Structural Information ◽  
Atomistic Simulations ◽  
Specific Interactions ◽  
Collagen Stability ◽  
Resolution Structure

One-quarter of the 28 types of natural collagen exist as heterotrimers. The oligomerization state of collagen affects the structure and mechanics of the extracellular matrix, providing essential cues to modulate biological and pathological processes. A lack of high-resolution structural information limits our mechanistic understanding of collagen heterospecific self-assembly. Here, the 1.77-Å resolution structure of a synthetic heterotrimer demonstrates the balance of intermolecular electrostatics and hydrogen bonding that affects collagen stability and heterospecificity of assembly. Atomistic simulations and mutagenesis based on the solved structure are used to explore the contributions of specific interactions to energetics. A predictive model of collagen stability and specificity is developed for engineering novel collagen structures.

Self-assembly behaviors of C18 fatty acids in arginine aqueous solution affected by external conditions

2019 ◽  
Vol 577 ◽  
pp. 240-248 ◽  
Author(s):  
Panpan Fan ◽  
Yuxian Wang ◽  
Jian Shen ◽  
Ling Jiang ◽  
Wei Zhuang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Fatty Acids ◽  
Self Assembly ◽  
External Conditions

Self-Assembly in Plant Barrier Biopolymers

1999 ◽  
Vol 54 (1-2) ◽  
pp. 141-143 ◽  
Author(s):  
Eva Domínguez ◽  
Antonio Heredia
Keyword(s):  
Fatty Acids ◽  
Water Transport ◽  
Self Assembly ◽  
Constant Thickness ◽  
Plant Cuticles ◽  
Waxy Material ◽  
Special Arrangement

A new procedure is given to isolate the components that constitute the translucent lines present in some layered plant cuticles. These electron-translucent lines are mainly composed of fatty acids and n-alkanes. This waxy material is capable to form molecular bilayers with a constant thickness of approximately 5 nm. This special arrangement have a strong contribution in water transport across the cuticle

Sign in / Sign up

Export Citation Format

Share Document