Dicarboxylic Oligopeptide Bolaamphiphiles:  Proton-Triggered Self-Assembly of Microtubes with Loose Solid Surfaces

Langmuir ◽  
1998 ◽  
Vol 14 (18) ◽  
pp. 4978-4986 ◽  
Author(s):  
Masaki Kogiso ◽  
Satomi Ohnishi ◽  
Kiyoshi Yase ◽  
Mitsutoshi Masuda ◽  
Toshimi Shimizu
Keyword(s):  
Self Assembly ◽  
Solid Surfaces

Dynamically resolved self-assembly of S-layer proteins on solid surfaces

2018 ◽  
Vol 54 (73) ◽  
pp. 10264-10267 ◽  
Author(s):  
Bart Stel ◽  
Fernando Cometto ◽  
Behzad Rad ◽  
James J. De Yoreo ◽  
Magalí Lingenfelder
Keyword(s):  
Self Assembly ◽  
Spatial Scales ◽  
Liquid Interface ◽  
Solid Surfaces ◽  
Solid Liquid Interface ◽  
Solid Liquid

Kinetic pathway in S-layer self-assembly at the solid–liquid interface across time (second to hours) and spatial scales (nm to microns).

Lay Gold Nanorods Monolayer down on Solid Surfaces for Surface Enhanced Raman Spectroscopy Applications

2021 ◽  
Author(s):  
haidong Zhao ◽  
Katsuhiro Isozaki ◽  
Tomoya Taguchi ◽  
Shengchun Yang ◽  
Kazushi Miki
Keyword(s):  
Raman Spectroscopy ◽  
Gold Nanorods ◽  
Hybrid Method ◽  
Self Assembly ◽  
Surface Enhanced Raman Spectroscopy ◽  
Solid Substrate ◽  
Solvent Evaporation ◽  
Solid Surfaces ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Laying-down gold nanorods (GNRs) of a monolayer immobilized on a solid substrate was realized with the hybrid method, a combination of three elemental technologies: self-assembly, electrophoresis, and solvent evaporation. The...

scholarly journals Self-Assembly of Amphiphilic Janus Particles Confined between Two Solid Surfaces

2020 ◽  
Vol 124 (32) ◽  
pp. 17556-17565
Author(s):  
Łukasz Baran ◽  
Małgorzata Borówko ◽  
Wojciech Rżysko
Keyword(s):  
Self Assembly ◽  
Solid Surfaces ◽  
Janus Particles

Self-assembly and aggregation of melamine and melamine–uric/cyanuric acid investigated by STM and AFM on solid surfaces

2009 ◽  
Vol 11 (35) ◽  
pp. 7708 ◽  
Author(s):  
Xu Zhang ◽  
Ting Chen ◽  
Qing Chen ◽  
Ling Wang ◽  
Li-Jun Wan
Keyword(s):  
Self Assembly ◽  
Cyanuric Acid ◽  
Solid Surfaces

scholarly journals Social motility of biofilm-like microcolonies in a gliding bacterium

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chao Li ◽  
Amanda Hurley ◽  
Wei Hu ◽  
Jay W. Warrick ◽  
Gabriel L. Lozano ◽  
...  
Keyword(s):  
Self Assembly ◽  
Microscopic Analysis ◽  
Extracellular Polysaccharide ◽  
Microfluidic System ◽  
Gliding Motility ◽  
Solid Surfaces ◽  
Swarming Motility ◽  
Collective Movement ◽  
Flavobacterium Johnsoniae ◽  
Gliding Bacterium

AbstractBacterial biofilms are aggregates of surface-associated cells embedded in an extracellular polysaccharide (EPS) matrix, and are typically stationary. Studies of bacterial collective movement have largely focused on swarming motility mediated by flagella or pili, in the absence of a biofilm. Here, we describe a unique mode of collective movement by a self-propelled, surface-associated biofilm-like multicellular structure. Flavobacterium johnsoniae cells, which move by gliding motility, self-assemble into spherical microcolonies with EPS cores when observed by an under-oil open microfluidic system. Small microcolonies merge, creating larger ones. Microscopic analysis and computer simulation indicate that microcolonies move by cells at the base of the structure, attached to the surface by one pole of the cell. Biochemical and mutant analyses show that an active process drives microcolony self-assembly and motility, which depend on the bacterial gliding apparatus. We hypothesize that this mode of collective bacterial movement on solid surfaces may play potential roles in biofilm dynamics, bacterial cargo transport, or microbial adaptation. However, whether this collective motility occurs on plant roots or soil particles, the native environment for F. johnsoniae, is unknown.

scholarly journals A nanotube-mediated path to protocell formation

2018 ◽  
Author(s):  
Elif Senem Köksal ◽  
Susanne Liese ◽  
Ilayda Kantarci ◽  
Ragni Olsson ◽  
Andreas Carlson ◽  
...  
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Solid Surfaces ◽  
Mechanical Agitation ◽  
Spontaneous Transformation ◽  
Electrical Currents ◽  
Membrane Compartments ◽  
Cellular Compartments ◽  
External Stimuli ◽  
Physical And Chemical

AbstractCellular compartments are membrane-enclosed, spatially distinct microenvironments which confine and protect biochemical reactions in the biological cell. On the early Earth, the autonomous formation of compartments is thought to have led to the encapsulation of nucleotides, thereby satisfying a starting condition for the emergence of life. Recently, surfaces have come into focus as potential platforms for the self-assembly of prebiotic compartments, as significantly enhanced vesicle formation was reported in the presence of solid interfaces. The detailed mechanism of such formation at the mesoscale is still under discussion. We report here on the spontaneous transformation of solid surface-adhered lipid deposits to unilamellar membrane compartments through a straightforward sequence of topological changes, proceeding via a network of interconnected lipid nanotubes. We show that this transformation is entirely driven by surface-free energy minimization and does not require hydrolysis of organic molecules, or external stimuli such as electrical currents or mechanical agitation. The vesicular structures take up and encapsulate their external environment during formation, and can subsequently separate and migrate upon exposure to hydrodynamic flow. This may link, for the first time, the self-directed transition from weakly organized bioamphiphile assemblies on solid surfaces to protocells with secluded internal contents.SignificanceThe nature of the physical and chemical mechanisms behind the formation, growth and division of the earliest protocells is among the key questions concerning the origin of life. Establishing a simple pathway for the assembly of protocell structures from the primordial soup is a particular challenge. Emerging evidence supporting the assumption that solid surfaces have a governing role in protocell formation has recently expanded the scope, and created new inspiration for investigation. By presenting a physical path from self-assembled amphiphile-based membranes on solid surfaces to spherical single-membrane compartments via a consistent sequence of transformations, solely driven by the materials properties of the interfaces, a direct link between the presence of functional biomolecules and the development of protocells can be established.

Reaction of Organosilicon Hydrides with Solid Surfaces:  An Example of Surface-Catalyzed Self-Assembly

2004 ◽  
Vol 126 (24) ◽  
pp. 7595-7600 ◽  
Author(s):  
Roy Helmy ◽  
Robert W. Wenslow ◽  
Alexander Y. Fadeev
Keyword(s):  
Self Assembly ◽  
Solid Surfaces
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