New Collapse Mechanism of Colloidal Particle Monolayers via Depletion Pressure: Formation of Large-Area Particle Multilayers at the Air–Water Interface

2019 ◽  
Vol 123 (45) ◽  
pp. 27862-27867 ◽  
Author(s):  
KyuHan Kim ◽  
Baekmin Q. Kim ◽  
Jongmin Q. Kim ◽  
Siyoung Q. Choi
Keyword(s):  
Colloidal Particle ◽  
Collapse Mechanism ◽  
Water Interface ◽  
Large Area ◽  
Air Water Interface

Organized monolayers and monolayer assemblies as potential components of molecular devices

1990 ◽  
Vol 68 (9) ◽  
pp. 992-998 ◽  
Author(s):  
Dietmar Möbius
Keyword(s):  
Signal Transmission ◽  
Modern Science ◽  
Local Environment ◽  
Ion Concentration ◽  
Molecular Devices ◽  
Water Interface ◽  
Large Area ◽  
Electrical Potentials ◽  
Reactive Center ◽  
Air Water Interface

The assembly of molecules to functional units and their interconnection in molecular dimensions to achieve processes like sensing, signal storage and processing, or catalysis of particular reactions is a challenge to modern science. Various phenomena are reviewed that may be considered relevant to the design and construction of molecular devices. The propagation of mechanical excitations of the monolayer-covered air–water interface as a model for signal transmission has been investigated using energy-transfer processes or fast formation of dye aggregates for optical detection. The lateral conductivity in specially designed monolayers can be modulated photochemically, thus providing a possibility of switching. Fast transfer of energy by incoherent exciton hopping can be used to harvest light by concentrating the energy absorbed in large area on a reactive center. Molecular fluorescent probes are sensors for electrical potentials, structure of the local environment, and average ion concentration. At the air–water interface, molecules may self-organize to larger units with new properties. Examples are the formation of extended two-dimensional aggregates of dyes and the reorganization of mixed monolayers to form a replica of adsorbed molecules.

Fabrication of Large-Area, Transferable Colloidal Monolayers Utilizing Self-Assembly at the Air/Water Interface

2009 ◽  
Vol 210 (3-4) ◽  
pp. 230-241 ◽  
Author(s):  
Markus Retsch ◽  
Zuocheng Zhou ◽  
Sergio Rivera ◽  
Michael Kappl ◽  
Xiu Song Zhao ◽  
...  
Keyword(s):  
Self Assembly ◽  
Water Interface ◽  
Large Area ◽  
Air Water Interface

Growth-collapse mechanism of PEI-CTAB films at the air–water interface

Soft Matter ◽  
2011 ◽  
Vol 7 (23) ◽  
pp. 11125 ◽  
Author(s):  
Richard A. Campbell ◽  
Karen J. Edler
Keyword(s):  
Collapse Mechanism ◽  
Water Interface ◽  
Air Water Interface

Large-area, transferable sub-10 nm polymer membranes at the air–water interface

Nano Research ◽  
2018 ◽  
Vol 11 (7) ◽  
pp. 3833-3843 ◽  
Author(s):  
Ya Huang ◽  
Kai Huang ◽  
Naveed Hussain ◽  
Hidetoshi Matsumoto ◽  
Hui Wu
Keyword(s):  
Polymer Membranes ◽  
Water Interface ◽  
Large Area ◽  
Air Water Interface

scholarly journals Impact of Engineered Carbon Nanodiamonds on the Collapse Mechanism of Model Lung Surfactant Monolayers at the Air-Water Interface

Molecules ◽  
2020 ◽  
Vol 25 (3) ◽  
pp. 714
Author(s):  
Aishik Chakraborty ◽  
Amanda Hertel ◽  
Hayley Ditmars ◽  
Prajnaparamita Dhar
Keyword(s):  
Lung Surfactant ◽  
Collapse Mechanism ◽  
Water Interface ◽  
Monolayer Films ◽  
Surfactant Monolayers ◽  
Collapse Mechanisms ◽  
Lipid Mixtures ◽  
Air Water Interface ◽  
Inhaled Nanoparticles ◽  
The Impact

Understanding interactions between inhaled nanoparticles and lung surfactants (LS) present at the air-water interface in the lung, is critical to assessing the toxicity of these nanoparticles. Specifically, in this work, we assess the impact of engineered carbon nanoparticles (ECN) on the ability of healthy LS to undergo reversible collapse, which is essential for proper functioning of LS. Using a Langmuir trough, multiple compression-expansion cycles are performed to assess changes in the surface pressure vs. area isotherms with time and continuous cyclic compression-expansion. Further, theoretical analysis of the isotherms is used to calculate the ability of these lipid systems to retain material during monolayer collapse, due to interactions with ECNs. These results are complemented with fluorescence images of alterations in collapse mechanisms in these monolayer films. Four different model phospholipid systems, that mimic the major compositions of LS, are used in this study. Together, our results show that the ECN does not impact the mechanism of collapse. However, the ability to retain material at the interface during monolayer collapse, as well as re-incorporation of material after a compression-expansion cycle is altered to varying extent by ECNs and depends on the composition of the lipid mixtures.

Large Area Synthesis of a Nanoporous Two-Dimensional Polymer at the Air/Water Interface

2015 ◽  
Vol 137 (10) ◽  
pp. 3450-3453 ◽  
Author(s):  
Daniel J. Murray ◽  
Dustin D. Patterson ◽  
Payam Payamyar ◽  
Radha Bhola ◽  
Wentao Song ◽  
...  
Keyword(s):  
Water Interface ◽  
Two Dimensional ◽  
Large Area ◽  
Air Water Interface
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