Results 41 to 50 of about 7,853 (199)

Screening of the Effective Additive to Inhibit Surfactin from Forming Precipitation with Divalent Cations for Surfactin Enhanced Oil Recovery

open access: yesEnergies, 2020
Surfactin, which is an anionic bio-surfactant, can be effective for enhanced oil recovery because it decreases interfacial tension between oil and water. However, it forms precipitation by binding with divalent cations.
Nao Miyazaki   +4 more
doaj   +1 more source

Interactions of surfactin with membrane models

open access: yesBiophysical Journal, 1995
Surfactin, an acidic cyclic lipopeptide produced by strains of Bacillus subtilis, is a powerful biosurfactant possessing biological activities. Interactions of ionized surfactin (two negative charges) with lecithin vesicles have been monitored by changes in its CD spectra. These changes are more important in the presence of Ca2+ ions.
Maget-Dana, R., Ptak, M.
openaire   +2 more sources

Enhancing surfactin production by using systematic CRISPRi repression to screen amino acid biosynthesis genes in Bacillus subtilis

open access: yesMicrobial Cell Factories, 2019
Background Surfactin is a cyclic lipopeptide that is of great industrial use owing to its extraordinary surfactant power and antimicrobial, antiviral, and antitumor activities.
Congya Wang   +4 more
doaj   +1 more source

Influence of B. subtilis 3NA mutations in spo0A and abrB on surfactin production in B. subtilis 168

open access: yesMicrobial Cell Factories, 2021
Background Bacillus subtilis is a well-established host for a variety of bioproduction processes, with much interest focused on the production of biosurfactants such as the cyclic lipopeptide surfactin.
Peter Klausmann   +6 more
doaj   +1 more source

In-Vitro Antibacterial and Anti-Inflammatory Effects of Surfactin-Loaded Nanoparticles for Periodontitis Treatment

open access: yesNanomaterials, 2021
Periodontitis is an inflammatory disease associated with biofilm formation and gingival recession. The practice of nanotechnology in the clinical field is increased overtime due to its potential advantages in drug delivery applications. Nanoparticles can
Athira Johnson   +5 more
doaj   +1 more source

Surfactin molecules with a cone-like structure promote the formation of membrane domains with negative spontaneous curvature and induce membrane invaginations.

open access: yesJournal of Colloid and Interface Science, 2023
Surfactin uniquely influences lipid bilayer structure by initially inducing membrane invaginations before solubilization. In this study, we exposed DOPC giant vesicles to various surfactin concentrations at different temperatures and observed surfactin ...
Žiga Pandur   +5 more
semanticscholar   +1 more source

The anti-thrombotic activity of surfactins

open access: yesJournal of Veterinary Science, 2005
Platelet aggregation was inhibited and the density of platelet-rich plasma (PRP) clots was decreased by the preincubation of PRP with surfactins, an acidic lipopeptide of Bacillus subtilis complex BC1212 isolated from soybean paste, in dose-dependent manner.
Jong-hwan, Lim   +6 more
openaire   +2 more sources

Genetic engineering of the precursor supply pathway for the overproduction of the nC14-surfactin isoform with promising MEOR applications

open access: yesMicrobial Cell Factories, 2021
Background Surfactin, a representative biosurfactant of lipopeptide mainly produced by Bacillus subtilis, consists of a cyclic heptapeptide linked to a β-hydroxy fatty acid chain.
Fangxiang Hu   +4 more
doaj   +1 more source

Nanometer Scale Organization of Mixed Surfactin/Phosphatidylcholine Monolayers [PDF]

open access: yesBiophysical Journal, 1999
Mixed monolayers of the surface-active lipopeptide surfactin-C(15) and of dipalmitoyl phosphatidylcholine (DPPC) were deposited on mica and their nanometer scale organization was investigated using atomic force microscopy (AFM) and x-ray photoelectron spectroscopy (XPS).
Deleu, Magali   +5 more
openaire   +2 more sources

The ion flotation of copper, nickel, and cobalt using the biosurfactant surfactin

open access: yesDiscover Chemical Engineering, 2023
Heavy metal contaminated waters are a significant environmental hazard, which require novel treatment methodologies. Further, the metals which might be recovered from these streams have significant intrinsic value, if they can be collected and ...
Izak Schlebusch, R. Pott, M. Tadie
semanticscholar   +1 more source

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