Search Within
840475C
Applied Filters:
Keyword:'840475C'
Showing 1-30 of 39 results for "840475C" within Papers
Mohammad Abu Sayem Karal et al.
Chemistry and physics of lipids, 230, 104916-104916 (2020-05-15)
The interaction of anionic magnetite nanoparticles (MNPs) of size 18 nm with negatively charged giant unilamellar vesicles (GUVs) formed from a mixture of neutral dioleoylphosphatidylcholine (DOPC) and negatively charged dioleoylphosphatidylglycerol (DOPG) lipids has been investigated. It has been obtained that
Peter J Beltramo et al.
Langmuir : the ACS journal of surfaces and colloids, 34(20), 5880-5888 (2018-05-02)
Capacitance measurements provide unique insights into the thickness, compressibility, and composition of large-area membrane bilayers and are used here in addition to demonstrate the successful incorporation of model ion channels. The simultaneous ability to control the bilayer size, manipulate tension
Eric H Hill et al.
Langmuir : the ACS journal of surfaces and colloids, 34(44), 13252-13262 (2018-10-24)
Lipid vesicles are important biological assemblies, which are critical to biological transport processes, and vesicles prepared in the lab are a workhorse for studies of drug delivery, protein unfolding, biomolecular interactions, compartmentalized chemistry, and stimuli-responsive sensing. The current method of
Md Zahidul Islam et al.
Langmuir : the ACS journal of surfaces and colloids, 33(9), 2433-2443 (2017-02-07)
The translocation of cell-penetrating peptides (CPPs) through plasma membranes of living cells is an important physiological phenomenon in biomembranes. To reveal the mechanism underlying the translocation of a CPP, transportan 10 (TP10), through lipid bilayers, we examined the effects of
Keni Yang et al.
Acta biomaterialia, 106, 314-327 (2020-02-23)
Nano-sized objects such as liposomes are modified by adsorption of biomolecules in biological fluids. The resulting corona critically changes nanoparticle behavior at cellular level. A better control of corona composition could allow to modulate uptake by cells. Within this context
Madhabi Lata Shuma et al.
Biochemistry, 59(18), 1780-1790 (2020-04-15)
The entry of cell-penetrating peptides (CPPs) into live cells and lipid vesicles has been monitored using probe (e.g., fluorescent dye)-labeled CPPs. However, probe labeling may alter the interaction of CPPs with membranes. We have developed a new method to detect
Yuki Takechi-Haraya et al.
Langmuir : the ACS journal of surfaces and colloids, 34(26), 7805-7812 (2018-06-06)
It has recently been recognized that the mechanical properties of lipid nanoparticles play an important role during in vitro and in vivo behaviors such as cellular uptake, blood circulation, and biodistribution. However, there have been no quantitative investigations of the
Mariya Chavarha et al.
Biophysical journal, 104(3), 594-603 (2013-02-28)
The hydrophobic surfactant proteins, SP-B and SP-C, greatly accelerate the adsorption of the surfactant lipids to an air/water interface. Previous studies of factors that affect curvature suggest that vesicles may adsorb via a rate-limiting structure with prominent negative curvature, in
Stephen A Pearson et al.
Metallomics : integrated biometal science, 12(6), 902-915 (2020-04-28)
Iron-sulfur cluster proteins play key roles in a multitude of physiological processes; including gene expression, nitrogen and oxygen sensing, electron transfer, and DNA repair. Biosynthesis of iron-sulfur clusters occurs in mitochondria on iron-sulfur cluster scaffold proteins in the form of
Anthony G Vecchiarelli et al.
Proceedings of the National Academy of Sciences of the United States of America, 113(11), E1479-E1488 (2016-02-18)
The Escherichia coli Min system self-organizes into a cell-pole to cell-pole oscillator on the membrane to prevent divisions at the cell poles. Reconstituting the Min system on a lipid bilayer has contributed to elucidating the oscillatory mechanism. However, previous in
Membrane Structure and Dynamics
Cell Biology, 227- 239 (2017)
Li Ma et al.
Biochemistry, 57(31), 4735-4740 (2018-04-06)
It is challenging to assess protein-membrane interactions because of the lack of appropriate tools to detect position changes of single proteins in the ∼4 nm range of biological membranes. We developed an assay recently, termed surface-induced fluorescence attenuation (SIFA). It
Md Mamun Or Rashid et al.
Biochimica et biophysica acta. Biomembranes, 1862(10), 183381-183381 (2020-06-07)
The effect of membrane potential on plasma membrane damage generated by antimicrobial peptides (AMPs) is an important, yet poorly characterized, process. Here, we studied the effect of membrane potential (φm) on pore formation by magainin 2 (Mag) in single giant
Naomi Benne et al.
Journal of controlled release : official journal of the Controlled Release Society, 318, 246-255 (2019-12-10)
Regulatory T cells (Tregs) are vital for maintaining a balanced immune response and their dysfunction is often associated with auto-immune disorders. We have previously shown that antigen-loaded anionic liposomes composed of phosphatidylcholine (PC) and phosphatidylglycerol (PG) and cholesterol can induce
Qiuhong Yu et al.
Langmuir : the ACS journal of surfaces and colloids, 34(21), 6183-6193 (2018-05-08)
Protein-mediated endocytosis of membrane is a key event in biological system. The mechanism, however, is still not clear. Using a de novo designed bola-type peptide KKKLLLLLLLLKKK (K3L8K3) as a protein mimic, we studied how it induced giant unilamellar vesicle (GUV)
Tjeerd Pols et al.
The FEBS journal, 288(1), 293-309 (2020-04-20)
In cells, the breakdown of arginine to ornithine and ammonium ion plus carbon dioxide is coupled to the generation of metabolic energy in the form of ATP. The arginine breakdown pathway is minimally composed of arginine deiminase, ornithine transcarbamoylase, carbamate
Ming-Tao Lee et al.
Biochemistry, 57(38), 5629-5639 (2018-08-29)
Daptomycin is a phosphatidylglycerol specific, calcium-dependent membrane-active antibiotic that has been approved for the treatment of Gram-positive infections. A recent Bacillus subtilis study found that daptomycin clustered into fluid lipid domains of bacterial membranes and the membrane binding was correlated
Dylan Steer et al.
Langmuir : the ACS journal of surfaces and colloids, 34(25), 7561-7574 (2018-05-31)
The hierarchical assembly of lipids, as modulated by composition and environment, plays a significant role in the function of biological membranes and a myriad of diseases. Elevated concentrations of calcium ions and cardiolipin (CL), an anionic tetra-alkyl lipid found in
In vitro skin penetration enhancement techniques: A combined approach of ethosomes and microneedles.
C Bellefroid et al.
International journal of pharmaceutics, 572, 118793-118793 (2019-11-13)
Dermal administration of different macromolecules, such as nucleic acids, remains a real challenge because of the difficulty of crossing the main skin barrier, the stratum corneum (SC). To overcome this barrier, the use of deformable lipid-based nanovectors were developed to
Morten Hyldgaard et al.
Applied and environmental microbiology, 80(24), 7758-7770 (2014-10-12)
Epsilon-poly-l-lysine (ε-PL) is a natural antimicrobial cationic peptide which is generally regarded as safe (GRAS) as a food preservative. Although its antimicrobial activity is well documented, its mechanism of action is only vaguely described. The aim of this study was
Ariel Mizrahi et al.
The Journal of biological chemistry, 285(33), 25485-25499 (2010-06-10)
The superoxide-generating NADPH oxidase complex of resting phagocytes includes cytochrome b(559), a membrane-associated heterodimer composed of two subunits (Nox2 and p22(phox)), and four cytosolic proteins (p47(phox), p67(phox), Rac, and p40(phox)). Upon stimulation, the cytosolic components translocate to the membrane, as
Interaction of imidazolium-based lipids with phospholipid bilayer membranes of different complexity.
Steffen Bornemann et al.
Physical chemistry chemical physics : PCCP, 22(17), 9775-9788 (2020-04-28)
In recent years, alkylated imidazolium salts have been shown to affect lipid membranes and exhibit general cytotoxicity as well as significant anti-tumor activity. Here, we examined the interactions of a sterically demanding, biophysically unexplored imidazolium salt, 1,3-bis(2,6-diisopropylphenyl)-4,5-diundecylimidazolium bromide (C11IPr), on
Bruno C Borro et al.
Biochimica et biophysica acta. General subjects, 129485-129485 (2019-11-18)
Microgels offer opportunities for improved delivery of antimicrobial peptides (AMP). To contribute to a foundation for rational design of such systems, we here study the effects of electrostatics on the generation of peptide-carrying microgels. For this, alginate microgels loaded with
Brenda L Kessenich et al.
ACS omega, 5(21), 12154-12161 (2020-06-18)
Amphiphilic molecules can alter the wettability of soil minerals. To determine how the headgroup chemistry of amphiphiles determines these effects, we investigate a system of the clay montmorillonite with long-chain phospholipids. We use phosphatidylglycerol (PG) phospholipids to contrast with our
Yibo Liu et al.
Langmuir : the ACS journal of surfaces and colloids, 34(25), 7545-7553 (2018-05-29)
Natural lipid headgroups contain a few types of metal ligands, such as phosphate, amine, and serine, which interact with metal ions differently. Herein, we studied the binding between Cu2+ and liposomes with four types of headgroups: phosphocholine (PC), phosphoglycerol (PG)
Sara Malekkhaiat Häffner et al.
Journal of colloid and interface science, 562, 71-80 (2019-12-15)
Effects of size and charge of anionic nanoclays on their interactions with bacteria-mimicking lipid membranes, bacterial lipopolysaccharide (LPS), and Gram-negative bacteria were investigated using ellipsometry, dynamic light scattering, ζ-potential measurements, and confocal microscopy combined with Live/Dead staining. Based on particle
Xinxing Zhang et al.
Journal of the American Chemical Society (2018-11-22)
Nature carefully designs the components of amphiphile-composed monolayer and bilayer membranes to deliver specific functions. The compositions of these interfacial layered structures are so delicate that minute modifications can result in huge changes in function. Great efforts have been expended
Svenja Bockelmann et al.
Journal of lipid research, 59(3), 515-530 (2018-01-19)
Ceramides are central intermediates of sphingolipid metabolism with dual roles as mediators of cellular stress signaling and mitochondrial apoptosis. How ceramides exert their cytotoxic effects is unclear and their poor solubility in water hampers a search for specific protein interaction
Michelle W Lee et al.
Biochimica et biophysica acta. Biomembranes, 1862(8), 183302-183302 (2020-04-21)
All antibiotics have to engage bacterial amphiphilic barriers such as the lipopolysaccharide-rich outer membrane or the phospholipid-based inner membrane in some manner, either by disrupting them outright and/or permeating them and thereby allow the antibiotic to get into bacteria. There
Ling Liu et al.
The Science of the total environment, 734, 139229-139229 (2020-05-26)
The induced membrane damage is a key mechanism for the cytotoxicity of graphene nanosheets (GNSs). In this research, the physical interaction of GNSs on model membranes was investigated using artificial membranes and plasma membrane vesicles. The effects of the GNSs
Page 1 of 2